JPS61214693A - Recorded information recording medium disc - Google Patents

Abstract

PURPOSE:To improve the reproduction of a picture and a sound signal by recording a video signal for one field for one eye in two video signals for left and right eyes, then a video signal for one field period for the other eye, then the signal for the other eye and the signal for the one eye sequentially. CONSTITUTION:In the recording mode of a video signal for 4-field period at each circumferential length recorded on a recorded information recording medium disc D, a video signal is recorded for one field period for one eye in two video signals for left and right eyes in a simultaneous stereoscopic television video signals on a recording track for the period of the first circumferential length from a specific radial position (Z-Z) sequentially in the order: video signal for one field period for one eye video signal for one field period for other eye video signal for one field for other eye video signal for one field period for one eye. Thus, a plane picture and a sound signal are reproduced in an excellent way, and also the stereoscopic reproduced picture by a simultaneous stereoscopic TV video signal and the stereoscopic reproduced picture by the field sequential stereoscopic TV signal are reproduced in an excellent way.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a recorded information recording medium disc, in particular, the reproduction of simultaneous stereoscopic television video signals, the reproduction of sequential stereoscopic television video signals, and 1. A recorded information recording medium disc capable of reproducing a televised video signal (television video signal used for reproducing non-stereoscopic television images (flat image television images)). Regarding.

(Prior Art) In recent years, as high-density recording and reproducing systems using various recording media have been put into practical use, it is becoming increasingly difficult to record television video signals (hereinafter, television is abbreviated as T'/). Recorded information recording medium discs (video discs) using various methods have become available.

(Problems to be Solved by the Invention) Video discs using various recording and reproducing methods using various recording media that have been put into practical use up to now all record TV video signals that reproduce flat TV images. However, recently, the appearance of video discs recording stereoscopic TV video signals has been eagerly awaited.

By the way, as a 3D TV method for displaying 3D images,
Similar to making the viewer feel a three-dimensional image in a three-dimensional movie, the left and right eyes can be seen with each eye to make the viewer psychologically perceive a three-dimensional image. There are two types of 3D TVs that follow the construction principle of
The simultaneous 3D TV system and the sequential 3D TV system have been known for several decades, but it is well known that 3D TV broadcasting has not yet been put into practical use. .

In order to easily obtain compatibility with the currently widely used TV system for reproducing flat images, the TV video signal for the left eye and the TV video signal for the right eye are broadcast separately. Therefore, if the frequency bands allocated to broadcasting by the current TV system are allocated, in order to implement simultaneous stereoscopic TV broadcasting,
If the number of channels allocated to TV broadcasting is substantially reduced by half, or if a band compression means is applied to the TV video signal for the left eye and the TV video signal for the right eye.

The TV system itself is difficult to implement because it is different from the currently widely used TV broadcasting method, and the TV video signal for the left eye and the TV video signal for the right eye are sent using the field sequential system. This is because, if it is played back on a normal TV receiver, it cannot be adopted because it will be played back as a double image, and there are many other problems.

However, the problem of channel allocation that has become a problem in TV broadcasting is irrelevant to video discs.
Furthermore, since it is possible to decide the TV system to be adopted with a large degree of freedom, it was considered to be meaningful to use a video disc as a medium for stereoscopic TV.

However, even if the video disc is for playing back 3D TV video signals, when it is played back by a video disc playback device that is already in widespread use, normal two-dimensional image playback and normal audio playback cannot be achieved. It is natural that it is desirable to be able to do this, and
The TV video signal for the left eye and the TV video signal for the right eye recorded on the video disc are converted into a 3D image by a 3D TV video signal playback device configured to play them simultaneously. It is used so that it can be reproduced,
Or a TV for the left eye recorded on a video disc.
It is also desirable that the present invention be used so that a stereoscopic image can be reproduced by a stereoscopic TV video signal reproducing device that is configured to sequentially reproduce a video signal and a TV video signal for the right eye. Therefore, there was a demand for a video disc that could satisfy each of the above-mentioned conditions.

Therefore, the applicant company first filed a patent application filed in 1983 regarding a video disc that could meet the above conditions.
No. 137701 and other patent applications, the recorded information recording medium disc already proposed by the applicant company mentioned above is capable of playing back two-dimensional images and three-dimensional images in a conventional video disc player. Since the recorded information recording medium disk was constructed with a focus on compatibility with the reproduction of flat images, which are the object of playback in In the case of reproduction, the number of displacement operations of the reproduction element required between recording traces increases, and as a result, the reproduction result of the audio signal accompanying the video signal is often unsatisfactory. It became a problem.

That is, when reproducing a video signal that is compatible with various systems from the recorded information recording medium disk described above, the reproduction is performed so that the video signal in the desired signal format is obtained from the recorded information recording medium disk. Depending on the mode, it is necessary to displace the reproducing element by a predetermined recording trace interval within a predetermined vertical retrace period on the recorded information recording medium disk, but the above displacement operation of the reproducing element is not suitable for video signals. Since this is performed within an unrelated vertical retrace period, even if the reproduction element is displaced many times, it will not have any negative effect on the reproduced video signal, but it will not be recorded along with the video signal. Since the audio signals recorded on the recorded information recording medium disc exist continuously on the time axis, even if the displacement operation of the reproducing element between recording traces is performed within the vertical retrace period. However, since the signal reproduced from the recorded information recording medium disc is disturbed at the moment of displacement of the reproduction element, the frequency modulated wave modulated by the audio signal is disturbed every time the reproduction element is displaced. In order to reproduce an audio signal in good condition, it is better to reduce the number of displacement operations of the reproduction element.

(Means for Solving the Problems) The present invention provides for
A recorded information recording medium disk in which video signals of four field periods are sequentially recorded in each round to form one spiral recording trace, and the four fields in each of the above-mentioned sequential rounds are formed. The video signal for the period includes two video signals for the left eye and a video signal for the right eye in the simultaneous stereoscopic television video signal in the record trace of the period of the first round from the above-mentioned specific radial position. A video signal of one field period for one eye of the two video signals → a video signal of one field period for the other eye → a video signal of one field period for the other eye → a one field period for one eye The video signal for the left eye and the video signal for the right eye in the simultaneous stereoscopic television video signal from the specific radial position described above are recorded in the record trace of one round following the record trace described above. Of the two video signals with the video signal, the video signal for one field period for the other eye → the video signal for one field period for one eye.
number → a video signal of one field period for one eye → a video signal of one field period for the other eye are recorded, and the following are the sequential field periods in the recording trace of the two consecutive laps. Using the same recording mode as the video signal recording mode described above, recording of the video signal for each subsequent two-round recording trace is performed repeatedly, and the above-mentioned two-round recording Just as the recorded signals in adjacent parts of the trace are video signals of paired field periods in a simultaneous stereoscopic television video signal,
a recorded information recording medium disc on which a video signal of a sequential field period for one eye and a video signal of a sequential field period for the other eye in a simultaneous stereoscopic television video signal are recorded; The recording signal of the L field period starting from the specific radial position in the recording trace of one round from the specific radial position is the left eye video signal and the right eye video signal in the simultaneous stereoscopic television video signal. At the beginning of a recording trace, such as a one-field period video signal for the other eye of the two video signals, a reproducing element is installed at a point in time after one field period has elapsed from the above-mentioned specific radial position. Displace the reproducing element outward by one recording trace interval, and also displace the reproducing element inward by one recording trace interval from the above-mentioned specific radial position both after 3 field periods and after 4 field periods have elapsed. In addition, the recording signal for one field period starting from the specific radial position in the record trace of one round from the specific radial position is recorded in the simultaneous stereoscopic television video signal. The above-mentioned specific radius is used at the head of a recording trace that is a video signal of one field period for one eye out of two video signals, a video signal for the left eye and a video signal for the right eye. A recorded information recording medium disc having a control command signal recorded thereon to displace a reproducing element inward by one recording trace interval both after the lapse of three field periods and after the lapse of four field periods from the position. , and the video signal recorded in the 4th field of the 4-field period video signal recorded in one round starting from the specific radial position described above is the same as that for the left eye in the simultaneous stereoscopic television video signal. If it is a video signal of one field period for one eye out of two video signals, a video signal and a video signal for the right eye, the 1st of the 4th field.
The audio signal accompanying the video signal of one field period is recorded in the two parts obtained by arbitrarily dividing the field period into two parts, and the audio signal accompanying the video signal of that one field period is recorded. For the part near the end of the two parts, the audio signal accompanying the video signal recorded in the recording trace adjacent to the outside of the recording trace is recorded, and furthermore, the above-mentioned audio signal is recorded. The present invention provides a recorded information recording medium disc in which an audio signal accompanying a video signal of each one field period is recorded in each one field period other than the field period. .

(Example) Specific contents of the recorded information recording medium disc of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a plan view illustrating and explaining the recording mode of a video signal recorded in a spiral recording trace in a recorded information recording medium disk of the present invention, and in this figure, Z-Z indicates recording. It shows a specific radial position on the finished information recording medium disk.

In the recorded information recording medium disk shown in FIG. Recorded portions a, b, c, and d of each vertical blanking period in the video signal of each of the four field periods are formed in portions that equally divide the surface of the recorded information recording medium into four.

Now, in the recorded information recording medium disc of the present invention,
The specific radius of it I! (One spiral record trace is formed by sequentially recording video signals of 4 field periods each round from (Z-Z) to its radial position (Z-Z). However, the specific recording mode of the video signal in the recording trace is as follows.

That is, the recording mode of the video signal of the four field periods for each round of the recorded information recording medium of the present invention is based on the specific radial position 11 (Z
The record of the first IR period from -Z) includes the left-eye video signal (
The video signal for one field period for one eye of the two video signals (indicated by the edge in the diagram) and the video signal for the right eye (indicated by R in the diagram) → the video signal for the other eye A video signal of one field period for the other eye → a video signal of one field period for the other eye → a video signal of one field period for one eye is recorded, and the following 1 field period is recorded for the other eye. In the records of Zhou.

A video signal of one field period for the other eye of the two video signals, the left eye video signal and the right eye video signal, in the simultaneous stereoscopic television video signal from the above-mentioned specific radial position → A video signal of one field period for one eye → a video signal of one field period for one eye → a video signal of 17 fields period for the other eye are recorded, as follows. Recording of the video signal for each successive two-round recording trace is repeated in the same recording manner as the recording manner of the video signal in the sequential field periods for the two consecutive recording traces described above. While being carried out,
Just as the recording signals in adjacent portions of the recording traces of two revolutions described above are video signals of paired field periods in a simultaneous stereoscopic television video signal, one of the recording signals in the simultaneous stereoscopic television video signal is The video signals are recorded in successive field periods for one eye and video signals in successive field periods for the other eye, and the video signals are recorded in the recording manner described above. An example configuration of a recorded information recording medium disk is shown in FIG.

In FIG. 1, one of the two video signals, the left eye video signal and the right eye video signal, in the above-mentioned simultaneous stereoscopic television eye video signal is the left eye video signal. It is said to be a video signal L for the eye (the numerical subscripts shown in the figure indicate field numbers).

Furthermore, of the two video signals, the left eye video signal and the right eye video signal, in the simultaneous stereoscopic television video signal described above, the other eye video signal is the right eye video signal R. (The numerical subscripts shown in the figure indicate field numbers).

Spiral 1 in the recorded information recording medium disc of the present invention
The record traces in the book include the left eye video signal of the simultaneous stereoscopic television video signal and the right eye video signal of the simultaneous stereoscopic television video signal in the recording manner explained with reference to FIG. In addition to recording the video signal R for the simultaneous stereoscopic television video signal, the audio signal accompanying the simultaneous stereoscopic television video signal is recorded.
In order to be able to play back without any inconvenience during playback operations in various playback modes, in addition to being recorded with special recording patterns as described below, there are also special recording patterns described below that are required during playback operations in specific playback modes. Various control signals such as those described above are also recorded in the manner described later.

5. The recorded information recording medium disk of the present invention is, for example, a capacitance change detection type recorded information recording medium disk developed by Mizude Genjin Co., Ltd., a recorded information recording medium disk according to the so-called VHD system. When implemented as a device that can be played back by a player, the recorded information recording medium disk is placed at the 2-2g position, as in the case of the recorded information recording medium disk shown in FIG. During each vertical blanking period recorded in recording section a near a specific radial position set in , a signal (hereinafter referred to as
The signal fP3) is recorded, and furthermore, the above-mentioned main information signal is recorded in such a manner as to sandwich a recording trace constituted by an array of pits according to the main information signal that is the target of recording and reproduction. Two types of tracking reference signals fP1., each having a different low frequency value and located in a frequency band lower than the frequency band occupied by the information signal. fP2(
Hereinafter, a recording trace is formed by the signals f pi and f p2), and furthermore, the two types of tracking reference signals described above are
The recorded information recording medium disc of the present invention satisfies the various conditions required for a VHD video disc, such as recording with the signal fp3 being switched sequentially and alternately for each recording position. It will be implemented as long as it satisfies the necessary conditions.

In the description of the following embodiments, a case where the recorded information recording medium disk of the present invention is implemented as one that can be reproduced by a so-called VHD type recorded information recording medium disk player will be used as an example. However, in the plan view of the recorded information recording medium disk of the present invention shown in FIG. 1 and other figures, the tracking reference signal f pi, Illustrations and explanations of the recording traces by f p2 are omitted.

Now, the recorded information recording medium disc of the present invention has a recording mode as already described with reference to FIG. are recorded, so from the recorded information recording medium disc on which the left eye video signal and the right eye video signal are recorded as described above, (1) the right eye video signal is recorded. If only the video signal for the left eye (or for the left eye) is reproduced continuously in the order of field numbers as shown by the thick solid line in FIG. 2 (the illustration for the left eye is omitted), R1→R2→R3 →R4→
A video signal for planar image reproduction is obtained by continuation of the video signals of each field from R5→R6→..., and
(2) A video signal for the left eye with an odd field number and a video signal for the right eye with an even field number (or a video signal for the right eye with an odd field number and a video signal for the left eye with an even field number) If the video signals (for video signals) are sequentially and alternately reproduced in order of field numbers as shown by the bold solid lines in FIG. 3, Ll→R2→L3→R4→L5→R6→...
...(or R1→L2→R3→L4→R5→L6
→...) A video signal for field-sequential stereoscopic image reproduction is obtained by continuation of the video signals of each field, and (3) a video signal for the left eye and a video signal for the right eye. If video signals with the same field number are played back at the same time, video signals for simultaneous stereoscopic image playback can be obtained. In response to the playback operation, the recorded information recording medium disc of the present invention selectively outputs a flat image TV video signal, a field-sequential stereoscopic TV video signal, and a simultaneous stereoscopic TV video signal. Can be played.

As is clear from the area indicated by the thick solid line in FIG.
It is necessary for the reproducing element to trace the recording trace without being displaced to the adjacent recording trace twice for each revolution of the recorded information recording medium disk.

Since the displacement operation of the reproduction element described above is automatically performed by the control operation of the reproduction machine based on the control command signal recorded in advance on the recorded information recording medium disc, there is no problem in the reproduction operation of the flat image. It is done without any problems.

That is, in the recorded information recording medium disc of the present invention, recording signals for one field period starting from the specific radial position are simultaneously recorded in one round of the recording trace from the specific radial position (Z-Z). The head part of a recording trace that is a video signal of one field period for the other eye of the two video signals, the video signal for the left eye and the video signal for the right eye, in the stereoscopic television video signal of the formula To do this, at the time when one field period has elapsed from the specific radial position (Z-Zi1), the reproducing element is displaced outward by one recording trace interval, and at the same time, three field periods are moved from the specific radial position mentioned above. A control command signal for displacing the reproducing element inward by one recording trace interval is recorded both at the time when the field period has elapsed and at the time when the four field period has elapsed. The recording signal of the L field period starting from the specific radial position in the recording trace is one of the two video signals, the left eye video signal and the right eye video signal, in the simultaneous stereoscopic television video signal. At the beginning of the recording trace, which is a video signal of one field period for the left eye, there are signals after three field periods have elapsed and four field periods have elapsed from the above-mentioned specific radial position (2-2 line position M). Since a control command signal that displaces the reproducing element inward by one recording trace interval is recorded at both times, the control command reproduced from the recorded information recording medium disk during the reproduction operation of the flat image. The signal causes the reproducing device to automatically displace the reproducing element, so that the reproducing operation of the two-dimensional image can be performed without any hindrance.

Furthermore, in the recorded information recording medium disc of the present invention, the locus of the reproducing element when the above-described field sequential stereoscopic TV video signal in (2) is reproduced is shown by the thick solid line in FIG. In this reproduction mode, field-sequential stereoscopic TV video signals can be reproduced satisfactorily.

Furthermore, when reproducing a simultaneous stereoscopic TV video signal, a specific radius position i! is set on the recorded information recording medium disk. (
The same field number is indicated from the recording trace of the left eye video signal and the recording trace of the right eye video signal in each of the four adjacent fields from the position of the 2-Z line in Fig. 1. What is necessary is to reproduce the video signal for the left eye and the video signal for the right eye.

Next, a recording mode of an audio signal to be recorded along with a video signal (a mode of editing the audio signal) on the recorded information recording medium disc of the present invention will be explained.

As mentioned above, the reproducing element used to reproduce the information signal from the recorded information recording medium is designed to draw different trajectories depending on the reproduction mode. In order to achieve the desired movement locus, the position at which the reproducing element is displaced near the vertical blanking period usually varies among individual reproducing machines.

By the way, it is a matter of course that the audio signal accompanying the video signal must be reproduced without any problems even by the reproduction elements that are displaced to show different movement trajectories depending on the reproduction mode. Even if the control command signal for the displacement of the reproducing element recorded on the recorded information recording medium disk cannot be read due to variations in the displacement position of the reproducing element during operation,
Since the audio signal that accompanies the video signal must be reproduced without any problems, the audio signal that should be recorded together with the video signal must be able to be reproduced on the time axis by the displacement of the reproducing element during the reproducing operation. First, editing of the above-mentioned audio signal, which needs to be edited so that continuity is not impaired, will be explained.

First, considering the case where a sequential stereoscopic TV video signal is reproduced from the recorded information recording medium disk shown in the first figure, the reproducing element that follows the recording trace of the recorded information recording medium disk in this reproduction mode is As shown by the solid line in FIG. 3, it is necessary to trace the path L1→R2→■, 3→R4→L5→R6, etc., so the reproducing element is connected to one of the disks of the recorded information recording medium. For each lap, its specific radial position (Z-
It is configured to be displaced inward by one recording trace interval near the point in time (U-U line position) when two field periods have elapsed from Z). The audio signal that should be
Audio signals Lls, R2s, accompanying video signals of each field period recorded in each field period;
L3g, R4s, L5s, R6g- (Note that regarding the display of audio signals, the audio signal accompanying the video signal of the field with field number L1 is Llg.

The audio signals are expressed as L2s, the audio signal accompanying the video signal of the field with field number L2, RLs, the audio signal accompanying the video signal of the field with field number R1, etc., but the same numbers are given. The audio signal that accompanies the left-eye video signal and the audio signal that accompanies the right-eye video signal in the field with the field number shown below are originally the same, so the descriptions below and in the figure Regarding the display of audio signals in the description, please refer to R.
As long as 1 (for example, Ig, 2g, and 3g) are recorded without distinguishing between Even if the position where the reproducing element is actually displaced shifts around the U-U line position due to slight variations in each reproducing device, the continuity of the reproduced audio signal will be maintained well. Ru.

However, when reproducing a video signal of a flat image, the trajectory of the reproducing element when reproducing an information signal from a recorded information recording medium disc is as shown in FIG. Since it is necessary to displace one recording trace interval in a specific radial position [(Z-Z line position) on the recorded information recording medium disk, the mode of recording the audio signal in the recording trace is as described above. In the case of an audio signal accompanying a video signal recorded in each field period in the recording trace, the position of the displacement of the reproducing element at a specific radius position II (Z - Z) as described above. If there are variations, the continuity of the reproduced audio signal will be disturbed.

However, the displacement of the reproducing element at the above-mentioned specific radial position (2-2) is determined by the reproducing element displacement control signal Kl (K2) read by the reproducing element from the recorded information recording medium disk. Based on this, the kick pulse created in the playback machine is supplied to the actuator, or the kick pulse created in the playback machine based on the standard rotational phase signal fp3 of the disc read by the playback element from the recorded information recording medium disc. This is caused by supplying the actuator to the actuator.

Since the timing of the displacement of the reproducing element caused by the actuator driven by the kick pulse generated within the reproducing machine varies depending on the individual reproducing machine, the expected position of the displacement of the reproducing element is the z-Z line position. Even if it is said that there is, the position at which the reproducing element is actually displaced will vary around the Z-Z line position, so the recording pattern shown in Figure 1 will not be correct. If the recording mode of the audio signal in the recording trace of the recorded information recording medium disk is an audio signal accompanying the video signal recorded in each field period in the recording trace as described above, the recorded The trajectory of the reproducing element during reproducing the information signal from the information recording medium disk may interfere with the continuity of the audio signal reproduced during reproducing the video signal of the flat image, which is as shown in FIG. arise.

This point will be specifically explained with reference to FIG. 4 as follows. (a) to (c) in Fig. 4 are inside the recorded information recording medium! ! FIG. 6 is a diagram for explaining that when a video signal for planar image reproduction is reproduced from D, the connection state of audio signals may become unsatisfactory when the displacement position of the reproduction element varies; .

First, as shown in FIG. 4(a), each field R8, R9, L12. Considering the case where the audio signals R8s, L9s, L12s, and R9g accompanying the video signal of R9 are recorded in correct correspondence with the field section in which the video signal of each field is recorded, in this case If the displacement position of the reproducing element shifts even slightly to the section side (section side with field number R8) until it reaches the field switching position (line 2-2 in No. 41i!iI), the connection of the audio signal will change. The condition worsens.

That is, the audio signal R8LL9s accompanying the video signal,
L125. When the switching position of R9g matches the field switching position at the Z-Z line position as shown in FIG.
This is because if the field is shifted to the field Ra side as shown in b), the reproduced audio signal will be mixed with unnecessary audio signal L125 at the time of switching, as in R8s→L125→R9s.

However, the audio signals R8s, L9s accompanying the video signal,
The switching positions of L12s and R9s are shown in (a) in Figure 4.
Even if the position coincides with the field switching position as shown in FIG. (L9g=R9s=9s)→R9g, so no unnecessary audio signal is generated at the time of switching.

So, in order to prevent the above problem from occurring,
As shown in FIG. 4(b), if the audio signal 8s accompanying the video signal of field R8 is recorded in at least the last part of field L12 before field R9. good.

The configuration of a recorded information recording medium disc in which the above conditions are generally described is shown as follows.

That is, each 1 from a particular radial position to that radial position
4 for each of the above-mentioned sequential rotations on a recorded information recording medium disk in which video signals of 4 field periods are sequentially recorded for each rotation to form one spiral recording trace.
The video signal of the field period is the record trace of the period of the first round from the specific radial position mentioned above, and the video signal for the left eye and the video signal for the right eye in the simultaneous stereoscopic television video signal are Of the two video signals, a video signal of one field period for one eye → a video signal of one field period for the other eye → a video signal of one field period for the other eye → one field for one eye The video signal of the period is recorded, and the record trace of one lap that continues from the record trace described above is as follows.
A video signal of one field period for the other eye of the two video signals, the left eye video signal and the right eye video signal, in the simultaneous stereoscopic television video signal from the above-mentioned specific radial position → A video signal for one field period for one eye → a video signal for one field period for one eye → a video signal for one field period for the other eye are recorded, and the above-mentioned continuous sequence is as follows. Video signals are repeatedly recorded for two consecutive recording traces in the same recording manner as the recording of video signals for successive field periods in the recording traces of two laps. With,
Just as the recorded signals in adjacent portions of the two-round recording trace described above are video signals of paired field periods in the simultaneous stereoscopic television video signal, one eye in the simultaneous stereoscopic television video signal In a recorded information recording medium disk on which video signals of sequential field periods for one eye and video signals of sequential field periods for the other eye are recorded, the video signals are recorded in one revolution starting from the specific radial position described above. The video signal recorded in the 4th field of the video signal of the 4-field period is
If it is a video signal of one field period for one eye out of two video signals, a left eye video signal and a right eye video signal, in a simultaneous stereoscopic television video signal, For the part near the start of the two parts obtained by arbitrarily dividing the first field period into two,
The audio signal accompanying the video signal for one field period is recorded, and for the portion near the end of the two portions mentioned above, the recording adjacent to the outside of the recording trace is recorded. The audio signal accompanying the video signal recorded in the trace is recorded, and furthermore, in each one field period other than the above-mentioned field period, the audio signal accompanying the video signal of each one field period is recorded. It can be said to be a recorded information recording medium disk configured to record an accompanying audio signal.

1. In the recorded information recording medium disc of the present invention, if it is only necessary to solve the problem of the connection of audio signals during reproduction of a video signal for reproducing a two-dimensional image, the editing point of the audio signal It is only necessary to provide xa on the near side of a specific radial position Z-Z line position on the recorded information recording medium disk.

The audio signal reproduced from the recorded information recording medium disc on which the audio signal is recorded by applying the above-mentioned means is as follows:
Even when reproducing a simultaneous stereoscopic TV video signal from a recorded information recording medium disc, the field sequential stereoscopic T.
Whether a V video signal is reproduced or a video signal for flat image reproduction is reproduced, this is done in such a way that no problems occur in the continuity of the audio signal.

y-y4B in the recorded information recording medium disk of the present invention shown in FIG. 1! ! (This position can be set arbitrarily, and the position shown in Figure 1 is just an example). As mentioned above, the control command signal for the displacement of the reproducing element is recorded so that the video signal for reproducing the planar image is reproduced from the recording medium disc. As a command signal.

Two types of information are recorded:

That is, as the control command signal for the displacement of the reproducing element, the recording signals for one field period starting from the specific radial position (2-2) are simultaneously recorded in one round of recording from the specific radial position (2-2). The head part of a recording trace that is a video signal of one field period for the other eye of the two video signals, the video signal for the left eye and the video signal for the right eye, in the stereoscopic television video signal of the formula (In FIG. 1, for example, the head of R1), the reproducing element is moved outward one field after one field period has elapsed from the above-mentioned specific radial position.
Control for displacing the reproducing element by a recording trace interval and also displacing the reproducing element inward by one recording trace interval from the specific radial position both after the passage of 3 field periods and after the passage of 4 field periods. A command signal Kl (indicated by a square mark in Figs. 1 to 3) is recorded, and in the record trace of one revolution from the specific radial position (2-2), The starting recording signal for one field period is the video signal for one field period for one of the two video signals, the video signal for the left eye and the video signal for the right eye, in a simultaneous stereoscopic television video signal. At the head of a recording trace such as (for example, the head of Ll in FIG. 1), there is a time point both after 3 field periods and after 4 field periods from the above-mentioned specific radial position. 2 (indicated by a circle in FIGS. 1 to 3) is recorded in the control command signal for displacing the reproducing element inward by one recording trace interval.

1 for the first control command signal for the displacement of the reproducing element and 2 for the second control command signal for the displacement of the reproducing element described above, etc., when those signals are read by the reproducing element and given to the reproducing machine. , la in the predetermined direction as described above with respect to the reproducing element.
It is configured to include displacement control information to perform a displacement equal to the distance rJJ of the recorded trace (the first displacement of the recorded trace reproducing element recorded on the recorded information recording medium disc shown in FIG. 1). The reproducing element fails to read 1 in the first control command signal for the displacement of the reproducing element from the recorded information recording medium disk, and traces the record on the recorded information recording medium disk. The second control command signal for the displacement of the reproducing element is used to displace the reproducing element so that the reproducing element can trace the recording trace that it should originally follow as quickly as possible when the reproducing element is moved. The control command signal Kl for the displacement of the reproducing element is 2).

Therefore, when a video signal for planar image reproduction is being reproduced from a recorded information recording medium disc, the reproduction element correctly sets 1 to the first control command signal for the displacement of the reproduction element having the content as described above. When reading, the reproducing device operates so that the reproducing element performs a displacement operation that shows a movement locus as shown by the thick solid line in FIG. The above operation in the reproducing machine is such that when the first control command signal for the displacement of the reproducing element is given to the reproducing machine, the first control command signal for the displacement of the reproducing element becomes 1. For example, a kick pulse is given to the actuator of the tracking control system to cause the reproducing element to move in a predetermined direction according to the included displacement information.
It is sufficient if the displacement is made by the distance between the recording traces.

Next, the second control command signal for the displacement of the reproducing element recorded on the recorded information recording medium disc shown in FIG. 2 is the field number R11 in the second control command signal for the displacement of the reproducing element recorded in the section.
Displacement information that allows the reproduction element to be displaced to the beginning of the field period of field number R12 at the end of the field period of field number R12, and displacement information that allows the reproduction element to be displaced from the end of the field period of field number R12 to the beginning of the field period of field number R13. 2 is included in the second control command signal for the displacement of the reproducing element.

When a video signal for planar image reproduction is being reproduced from a recorded information recording medium disk, when the reproduction element reads 2 in the second control command signal for the displacement of the reproduction element having the content as described above. In this case, the reproducing element fails to read 1 in the first control command signal for the displacement of the reproducing element and is tracking on the wrong recording trace. When 2 is given to the second control command signal of
The reproducing element is quickly displaced onto the recording trace that the reproducing element is originally supposed to follow.

That is, in a state where the reproducing element is reproducing a video signal for reproducing a planar image from the recorded information recording medium disk shown in FIG.
When 2 is read in the second control command signal for the displacement of the reproducing element recorded at the beginning of the field period 9, the reproducing device performs a reproducing operation configured to include the displacement control information as described above. The second control command signal for the displacement of the element and the displacement control information in 2 cause the reproduction element to change to the field number L.
9 field period → field number RIO field period → field number R11 field period → field number R12 field period → field number R
The reproducing element is displaced so that the recording trace on the recorded information recording medium disc can be traced through a path such as field period No. 13→field period No. 14→.

Therefore, when reproducing a video signal for planar image reproduction from a recorded information recording medium disk, the reproducing element fails to read 1 in the first control command signal for the displacement of the reproducing element, resulting in an incorrect recording trace. is being tracked, and the second displacement of the reproducing element is
When 2 is read in the control command signal of
By using the displacement control information contained in the data, the reproducing element is quickly displaced onto the recording trace that it should originally follow.

FIG. 6 shows a block diagram of a recording signal system of a master disc of a recorded information recording medium disc according to the present invention, which enables information signals to be reproduced even by a so-called VHD type recorded information recording medium disc reproducing machine. In the figure, 1 is a generation device for a left-eye video signal of a simultaneous 3D TV image signal, and 2 is a generation device for a right-eye video signal of a simultaneous 3D TV image signal. 5 is an audio signal source, and this audio signal source 5 generates audio signals (audio signals of a predetermined number of channels) accompanying the above-mentioned simultaneous stereoscopic TV video signal.

8 is a circuit for generating additional signals such as address signals and identification signals, and this additional signal generating circuit 8 generates various necessary address signals, control signals, and identification signals. Further, 9 is a signal generator, and this signal generator 9 generates the above-mentioned signal f pi based on, for example, the vertical synchronization signal, color subcarrier, etc. sent from the video signal source 2.
, f P2. Generate f p3.

3 is a left-eye video signal generated by the left-eye video signal generator ll of the simultaneous stereoscopic TV video signal, and a right-eye video signal generator It of the simultaneous stereoscopic TV video signal.
The video signal for the right eye generated in step 2.

A video signal editing device is configured to edit video signals into video signals that are sequentially and alternately arranged on the time axis for each field period. In order to arrange the video signals edited by the video signal editing device 13 on the time axis as signals having a correspondence relationship as shown in the chart shown at the bottom of FIG. This is an audio signal editing device used.

The output signal of the audio signal editing device 6 described above is as follows.

The frequency modulator 7 converts the wave into a frequency modulated wave, and then the mixer 4
The mixer 4 mixes the video signal output from the video signal editing device 3 with the additional signal generated by the additional signal generation circuit 8.

The output signal of the mixer 4 described above is frequency modulated by a frequency modulator 10, and then a signal fp3 is added thereto by an adder circuit 11, and then supplied to an optical recording device (not shown) via an output terminal 12. ,Also.

The signals f Pi, f P2 generated by the signal generator 9 are each fed via a separate output terminal 13.14 to an optical recording device, not shown. As the optical recording device, for example, the one described in Japanese Patent Application Laid-open No. 100217/1984 may be used.

The signal sent out via the output terminal 12 and the tracking reference signal fp3 sent out via the output terminal 13.14 are each outputted from a laser beam by an optical modulator in an optical recording device (not shown). Intensity modulation is performed to expose the photosensitive layer of the master disc of the recorded information recording medium disk to light in accordance with the intensity of the information signal to be recorded.

The master disk of the recorded information recording medium disk undergoes a development process, so that its photosensitive layer is formed with an array of pits according to the information signal to be recorded. Based on the original information recording medium disk,
A master disc, a mother disc, and a stamper are sequentially made through predetermined processes, and recorded information recording medium discs are mass-produced by pressing with the stamper.

The mutual relationship between various information signals recorded by the recording signal system of the master disk of the recorded information recording medium disc described above is as shown in FIG. 7, for example.

That is, FIG. 7 shows various information signals to be recorded on the recorded information recording medium disk, such as a video signal within the vertical blanking period, and tracking reference signals fP1 to fP2.
．． A signal fP3 indicating the reference rotational phase of the disc. Additional signals (including the first and second control command signals for the displacement of the reproducing element described above, as well as the right eye video signal field and the right eye video signal field in the stereoscopic TV video signal, if necessary) 2 is a waveform diagram showing the mutual correspondence of various signals such as address information (also used for identification with fields); FIG. (b) shows signals f pi and f p2.

(c) shows the signal fP3, and (d) shows 2 for the displacement control signal Kl as one of the additional signals.

Note that Sc shown in FIG. 7(a) is a color burst signal, and the 524,525°1
．． Numbers such as 2, 3, 4, etc. are numbers indicating the horizontal scanning period in the TV video signal, and the numbers for the horizontal scanning period are different from each other shown in (a) to (d) in Fig. 7. This is used to illustrate the location of the signal.

FIG. 8 shows a recorded information recording medium in the case where the recorded information recording medium disk of the present invention is configured as a recorded information recording medium disk of the capacitance value change detection type as described above. FIG. 8 is a block diagram showing an example configuration of a reproducing device (reproducing device I) used for reproducing information signals from a disk, and in this FIG. A configuration example of a reproducing apparatus configured to selectively reproduce a TV video signal and a field sequential stereoscopic TV video signal is shown.

Further, FIG. 9 shows a TV video signal of a two-dimensional image and a field-sequential three-dimensional r
1 shows an exemplary configuration of a reproducing apparatus configured to selectively reproduce a v-video signal and a simultaneous stereoscopic TV video signal.

Corresponding components in each of the playback apparatuses shown in FIGS. 8 and 9 are given the same reference numerals in the drawings. A subscript a is attached to the component provided for the left eye video signal in the video signal, and a component provided for the right eye video signal in the 3D TV video signal is In the following descriptions of 9 with the suffix r, when the configuration and operation of 9 are explained in common without distinguishing between left-eye video signals and right-eye video signals, each component is The subscripts Q and r in the drawing symbols are omitted.

The reproducing apparatus shown in FIG. 9 described above functions as a capacitance change detection type reproducing needle used to read out an information signal from a recorded information recording medium disc as a change in capacitance value. By using one reproducing needle that detects changes in capacitance and has electrodes that individually correspond to two adjacent recording traces on the disc of an information recording medium. , shows an example of the configuration of a reproducing apparatus configured to be able to also reproduce a simultaneous stereoscopic TV video signal from a recorded information recording medium disc (simultaneous stereoscopic TV video signal from a recorded information recording medium disc). In order to be able to reproduce information from a recorded information recording medium disk, a capacitance value change detecting reproducing needle used to read out information signals as changes in capacitance value from a recorded information recording medium disk is used. A playback device is configured so that two pieces are used so as to correspond to two adjacent recording traces on a disc, respectively, so that simultaneous stereoscopic TV video signals can also be played back from the recorded information recording medium disc. For example, a delay circuit may be used to match the positions of the output signals from the two capacitance value change detection reproducing hands on the time axis, and the image for the left eye may be By separately providing a signal processing circuit and a right eye video signal processing circuit, a reproducing apparatus capable of reproducing simultaneous stereoscopic TV video signals can be constructed.

In FIGS. 8 and 9, D is a recorded information recording medium disk, and in the case of the embodiment, this recorded information recording medium disk is of a capacitance value change detection type. ,
This recorded information recording medium disc is rotated by a rotational drive mechanism (not shown).

It is rotated at a predetermined constant rotational speed (in order to simplify the illustration, the rotational drive mechanism, servo circuit, etc. are not shown in the figure).

S is a reproducing element (reproducing needle) used to read the information signal from the recorded information recording medium disk, and this reproducing element is made of, for example, a reproducing needle body made of a high-hardness material that is wear-resistant and has an electrical conductivity. A regenerated needle with a material electrode attached thereto is used.

For regenerated needles, see 1, for example, JP-A-57-158051.
Please refer to the publication No.

The change in capacitance value that occurs between the tip of the electrode of the reproducing meter S and the row of pits formed on the disc surface of the recorded information recording medium is the electrical quantity in the preamplifier A P +ApH, Apr. is converted into a change in

The static electricity generated between the tip of the electrode of the reproduction needle S and the row of bits formed on the disc surface of the recorded information recording medium is applied to the demodulators DEA, DEMQ, DEMr and the automatic gain control circuit AGC. To convert a change in capacitance value into a change in electrical quantity, 1. For example, connect the electrode part of the regeneration needle to the center six bodies of a semi-coaxial resonator to which high-frequency power is supplied from a high-frequency oscillator, and convert the capacitance (The resonant frequency of the semi-coaxial resonator may be changed in response to the change in the capacitance value, and the change in the capacitance value may be extracted as a change in the voltage value.)

Note that the signal output from the preamplifier Ap (Ap Q, Apr) is the same as the signal sent from the output terminal 12 in the recording signal system described with reference to FIG. 6, and the signal output from the output terminal 1.
This is a frequency division multiplexed signal with the signal output from 3.14.

The output signal from the demodulator OEM (DEN Q , DEMr) is sent to the output terminals 15 (15Q, 15r), and is also supplied to the extraction circuit KAG for a control command signal for displacing the reproducing element. In the embodiments shown in FIGS. 8 and 9, the demodulator DEM (DE
M Q , DEMr) to output terminal 15 (15n, 1
The signal sent to 5r) may be a video signal for planar image reproduction or a field-sequential stereoscopic TV video signal, depending on the reproduction mode set in the reproduction device. In the embodiment shown in FIG. 9, when the playback mode is set to the simultaneous stereoscopic TV video signal playback mode, the signal sent from the demodulator DEMΩ to the output terminal 15Q is the same as the simultaneous stereoscopic TV video signal. This is the video signal for the left eye, and the signal sent from the demodulator DEMr to the output terminal 15r is the video signal for the left eye in the simultaneous stereoscopic TV video signal.

The output signal of the preamplifier Ap (Ap Q, Apr) is passed through the automatic gain control circuit AGC to the bandpass filter BPF.
I, BPF2° BrF3 is supplied. Each bandpass filter 8PF1 described above extracts only the tracking reference signal fP1, and the bandpass filter BPF2 extracts only the tracking reference signal fρ2. iF pass filter @B
PF3 is designed to have passband characteristics that allow it to extract only the tracking reference signal fp3.

Signal f extracted by bandpass filters BPFI and BPF2
Pi.

fp2 is applied to the signal polarity switching circuit SwP.

The signal fP3 extracted by the bandpass filter BPF3 is given to the switching pulse generator SPG via the detector Det3.

The switching pulse generator SPG is based on the signal fp3 described above.
When the switching pulse generated in The signal polarity switching circuit swP performs the switching operation using a switching pulse (when switching from fpl to The switching operation is also performed by switching pulses generated by the generator SPG.

The output signal from the signal polarity switching circuit SPG described above is rectified and smoothed by the wave detectors Detl and Det2, and then applied to the differential amplifier DA. The output signal of the differential amplifier DA described above is made into a tracking control signal in the servo circuit TSC, and is sent to the actuator ACT of the tracking control system.
supplied to Note that the servo circuit TSC is also supplied with a signal generated by the displacement control signal generator KPG in order to displace the reproducing element.

The actuator ACT of the tracking control system drives and displaces the reproducing needle, and the reproducing needle S is caused to correctly follow the recording trace of the recorded information recording medium disk by the operation of the tracking control system. The reproduction needle is transported in the radial direction of the recorded information recording medium disc by a transport mechanism FM that transports it in the radial direction of the recorded information recording medium disc. The transport mechanism F is designed to move the playback needle in a predetermined manner in the radial direction of the recorded information recording medium disc under the control of the servo system in a manner that corresponds to the playback mode of the playback device and the operating state of the playback device. is being done.

Now, the control command signal extraction circuit KAG, to which the output signal from the demodulator DEN is supplied, extracts the control command signal Kl indicating the displacement mode of the reproducing element from among the signals supplied thereto.
2 is extracted and supplied to the fixed contact a of the changeover switch Svk, and also to the generation circuit SKG of a control command signal indicating the displacement mode of the reproduction element in the field sequential stereoscopic TV reproduction mode.

When the operation mode of the reproduction device is the planar image reproduction mode, the movable contact V of the changeover switch SWk is in contact with the fixed contact a, and in this state, the control command signal is extracted by the control command signal extraction circuit KAG. control command signal Kl,
K2 is supplied to the displacement control signal generator KPG of the reproducing element via a fixed contact and a movable contact V. As already mentioned, the control command signal for the displacement of the reproducing element extracted by the control command signal extraction circuit KAG is the Y-Y in the recorded information recording medium disc of the present invention shown in FIG. It is recorded at the line position.

When the control command signal for the displacement of the reproducing element extracted by AG in the control command signal extraction circuit described above is 1 as the first control command signal, it is the fixed contact ca of the changeover switch SWk.
and the movable contact V to the displacement control signal generator KPG, the displacement control signal generation @KPG causes the reproducing element to generate one recording trace at the vertical blanking period position b in the recorded information recording medium disk. Displacement control signal (kick signal) for displacing the reproducing element to the outer circumference by an interval of one recording trace, and displacing the reproducing element to the inner circumference by one recording trace interval at the vertical blanking period positions d and a on the recorded information recording medium disc. , or kick pulse) and applies it to the switching pulse generator SPG and the servo circuit TSC, so that the reproducing element performs one recording in the vertical blanking period b in the recorded information recording medium disk. The recording trace is displaced to the outer periphery by a trace interval, and is also displaced to the inner recording trace by one recording trace interval during the vertical blanking period of d and a in the recorded information recording medium disc. .

Next, when the control command signal for the displacement of the reproduction element extracted by the control command signal extraction circuit KAGI described above is 2 in the second control command signal, it is determined that the fixed contact ca and the movable contact of the changeover switch SWk are V and the displacement control signal generator K
When given to PG, in the displacement control signal generator KPG,
Generating a displacement control signal (kick signal or kick pulse) for displacing the reproducing element inward by one recording trace interval at vertical blanking period positions d and a on the recorded information recording medium disc; , switch it to the pulse generator SPG
and to the servo circuit TSC, whereby the reproducing element is displaced inward by one recording trace interval at the vertical blanking period positions d and a on the recorded information recording medium disc.

When the playback mode of the playback device is set to the playback mode of field-sequential stereoscopic TV video signals, the movable contact V of the changeover switch 5llk is switched to the fixed contact cb side, and the displacement control signal generator KPG An output signal from a control command signal generation circuit SKG is supplied.

The control command signal generation circuit SKG described above performs the control necessary for the regeneration operation in that state based on the control command signal for the displacement of the reproducing element extracted by the control command signal extraction circuit KAG supplied thereto. A command signal is generated and supplied to the displacement control signal generator KPG via the fixed contact cb and the movable contact V of the changeover switch Swk.

The control command signal for the displacement of the reproduction element extracted by the control command signal extraction circuit KAG described above is set to 1 as the first control command signal.
In this case, the control command signal generation circuit SKG, which is given this as an input signal, generates a control command signal that can sequentially displace the reproducing element in a first-order manner.

That is, the two types of control command signals Kl described above.

K2 is recorded in a predetermined part of the recorded information recording medium disc as described above,
Depending on which of the above-mentioned signals is reproduced, it is possible to know which of the recording traces of the left or right eye video signal the reproduction needle is tracking at that time. When the first control command signal for the displacement of the reproducing element extracted by AG in the extraction circuit is 1, the recorded information recording medium disc in the embodiment shown in the first figure has a radius of Y-Y. This means that the playback needle is tracking the recorded trace of the right eye's video signal at this position.
When the control command signal for the displacement of the reproducing element extracted by the control command signal extraction circuit KAG is 1 in the first control command signal, the control command signal generation circuit SKG detects the displacement in the recorded information recording medium disk. A displacement control signal (kick signal or kick pulse) is generated in such a manner as to displace the reproducing element inward by one recording trace interval at the vertical blanking period position C, and this is used to generate a switching pulse. vessel SPG
is applied to the servo circuit TSC, whereby the reproducing element performs the displacement as shown in FIG. 3, and a sequential stereoscopic TV video signal can be reproduced from the recorded information recording medium disc.

Next, when the control command signal for the displacement of the reproducing element extracted by the control command signal extraction circuit KAG described above is 2 in the second control command signal, it is the control command signal given as the input signal. The generating circuit SKG generates a control command signal that can sequentially displace the reproducing element in the following manner.

That is, when the control command signal for the displacement of the reproducing element extracted by the control command signal extraction circuit KAG described above is 2 as the second control command signal, the recorded information recording medium disc in the embodiment shown in the first figure This means that the playback needle is tracking the recording trace of the left eye video signal at the radius Y-Y position, so the control command for the displacement of the playback element extracted by the control command signal extraction circuit KAG. When the signal is 2 for the second control command signal, the control command signal generation circuit SKG moves the reproducing element 1 to the inner circumference at the vertical blanking period position of 1 and 2 on the recorded information recording medium disk. Displace by the recording interval. When a displacement control signal (kick signal or kick pulse) is generated in such a manner as shown in FIG. An incorrect signal is reproduced during only one field period between the position and the vertical blanking period position b, but during other periods, the displacement shown in FIG. 3 is performed to reproduce the recorded information recording medium. Inner m
A sequential stereoscopic TV video signal can be reproduced from D.

Next, in the playback device of the embodiment shown in FIG. 9, when its operation mode is set to the simultaneous stereoscopic TV video signal playback mode, the movable contact V of the changeover switch 5tilk is switched to the fixed contact ca side. The mode of displacement of the reproducing needle is the same as that when reproducing the plane image described above. In addition,
The switching operation of the movable contact V of the changeover switch Svk described above is performed by applying a switching control signal to the control signal supply terminal 16. The switching control signal for the changeover switch described above is generated by five operators setting the playback mode on the operating section of the playback device.

In the reproducing apparatus of the embodiment shown in FIG. 9, one regenerator S provided with two electrodes is used as described above.
Only one tracking control system is required, and the tracking reference signal to be given to the tracking control system may be one read by one electrode of the reproducing needle S (in the illustrated example, a video signal for the left eye is used). It is assumed that the tracking reference signal read by the electrode that reads is used in the tracking control system).

FIG. 10 shows an example of the configuration of a display used to reproduce a 3D TV image using a 3D TV video signal generated by a playback device, and (a) in FIG.
The simultaneous type is configured so that a video signal for the right eye is supplied to the input terminal 17r and a video signal for the left eye is supplied to the input terminal 17Q, so that the viewer 23 can perceive a stereoscopic reproduced image. This shows an outline of the configuration principle of a display for reproducing stereoscopic images using a stereoscopic TV video signal, and (b) in FIG. 10 shows that a field-sequential stereoscopic TV video signal is supplied to the input terminal 17. This figure schematically shows the principle of construction of a display for reproducing a stereoscopic image using a field sequential stereoscopic TV video signal, which is configured so that the viewer 23 can perceive a stereoscopic image.

In FIG. 10(a), 18 is a picture tube that projects a reproduced image for the right eye by being supplied with a video signal for the right eye, and 20 is a picture tube for displaying a reproduced image for the right eye at an input terminal Ill. By supplying the video signal, both reproduced images for the left eye are displayed. In addition, in FIG. 10(b), 26 is a field-sequential stereoscopic TV connected to the input terminal 17.
This is a picture tube that projects a field-sequential reproduction image by being supplied with a video signal.

In the display for reproducing stereoscopic images shown in FIG. As the polarizing plate 24r for the right eye, one having the same polarization angle as the polarizing plate 21 is used, and the polarizing plate 24r for the left eye in the polarized glasses 24 is
As 4Q, one having the same polarization angle as the polarizing plate 22 is used.

Therefore, the right eye of the viewer 23 sees only the reproduced image for the right eye projected on the picture tube 18 from the polarizing plate 21 to the semi-transparent mirror 1.
9→The reproduced image for the left eye, which is projected on the picture tube 20, reaches the left eye of the viewer 23 through the polarizing plate 24r for the right eye in the polarized glasses 24. [1119→Polarizing plate 24 for left eye in polarized glasses 24
Since the light reaches through Ω, the viewer 23 perceives a stereoscopic image.

Next, in the display for stereoscopic image reproduction shown in FIG. 17(b), 28 is a shutter opening/closing control signal generation circuit. The right eye shutter 27r of the shutter 27 and the left eye shutter 27I2 of the shutter 27 are sequentially and alternately opened and closed during sequential vertical blanking periods in the field sequential stereoscopic TV video signal supplied to the shutter 27. A shutter opening/closing control signal is generated to allow the shutter to open and close.

Right eye shutter 27r in the shutter 27 described above
And, as the shutter 27Q for the left eye, it is, for example, 2.
Although it may be configured as a mechanical type,
It is preferable to use a piezoelectric material (for example, PLZT) or an electric type composed of a combination of a liquid crystal and a polarizing plate.

Note that as a display for reproducing stereoscopic images, a display having a configuration other than that described above may be used.

When the playback device for the recorded information recording medium disk is set to the double speed quick motion image playback mode, the tracking reference signal f is generated in the recorded information recording medium disk.
The rear where pl and tracking reference signal fP2 are switched! ! (In this specification, specific pole positions Z-Z
The semi-posterior position represented as! ! In this specification, U-U
At the semi-rear position 11, which is expressed as In this case, when the playback device is set to the double-speed quick motion image playback mode, it is possible to perform the sequential playback operation of the stereoscopic TV video signal from the recorded information recording medium disc shown in FIG. can.

A playback device (conventional playback device) configured to play back quick motion images at double speed in the operating mode described above plays back quick motion images at double speed from a normal recorded information recording medium disc. Since the configuration is such that muting is applied to the audio signal so that the audio signal is not output in the state where When a sequential three-dimensional TV video signal is reproduced, muting of the audio signal is released.

In addition, we have created an adapter that reads the data read by the recorded information recording medium disk and generates a control signal, so that when the signal from the recorded information recording medium disk is reproduced, it is recorded on the recorded information recording medium disk. When 1 is read in the control command signal, the adapter generates a control signal that automatically changes the playback mode of the playback device from "normal playback mode" to "double speed quick motion image playback mode." It is a preferred embodiment to allow the data to be sent to the player and provide it to the playback device.

Furthermore, each record mark on the recorded information recording medium disk is assigned an individual address.

Whether the control command signal Kl has any of 2 can be determined depending on whether the address read from the record is an odd number or an even number.
It may be such that only the address recorded on the recorded information recording medium disk is read and a predetermined control signal is generated based on the read address.

Furthermore, signals can be reproduced from the recorded information recording medium disc of the present invention by operating the conventional reproduction device as described above in the double-speed quick motion image reproduction mode without using the adapter as described above. Even if you do it, once every two times
The reproduction operation of the field-sequential stereoscopic TV video signal is performed in the correct state with a certain probability.

(Effects) As is clear from the above detailed explanation, the recorded information recording medium disc of the present invention sequentially transmits video signals of 4 field periods for each round from a specific radial position to that radial position. It is a recorded information recording medium disk on which a single spiral recording trace is formed, and the video signal of the four field periods in each of the sequential rotations described above is recorded at the specific radial position described above. The record trace of the first one-round period from A video signal of a field period → a video signal of one field period for the other eye → a video signal of one field period for the other eye → a video signal of one field period for one eye is recorded, and the above-mentioned record trace 1 following
In the record trace of the circumference, there are two video signals for the left eye and a video signal for the right eye in the simultaneous stereoscopic television video signal from the specific radial position mentioned above. A video signal of one field period → a video signal of one field period for one eye → a video signal of one field period for one eye → a video signal of one field period for the other eye is recorded. Therefore, the following two consecutive
Video signals are repeatedly recorded for two successive laps in the same manner as the recording of video signals for successive field periods in the recording traces of laps. At the same time, just as the recorded signals in adjacent portions of the two-round recording trace described above are video signals of paired field periods in the simultaneous stereoscopic television video signal, the simultaneous stereoscopic television video signal a recorded information recording medium disk on which a video signal of a sequential field period for one eye and a video signal of a sequential field period for the other eye are recorded, and one revolution from the above-mentioned specific radial position. In the recording trace, the recording signal for one field period starting from the specific radial position is one of the two video signals, the left eye video signal and the right eye video signal, in the simultaneous stereoscopic television video signal. At the beginning of a recording trace, such as a video signal of one field period for the other eye, the reproducing element is displaced outward by one recording trace interval from the specific radial position described above after one field period has elapsed. At the same time, a control command signal is recorded to displace the reproducing element inward by one recording trace interval both after the 3-field period and after the 4-field period from the specific radial position. In addition, in the recording trace of one round from the above-mentioned specific radial position, the recording signal of one field period starting from the above-mentioned specific radial position is the left eye video signal and the right eye video signal in the simultaneous stereoscopic television video signal. At the beginning of a recording trace, such as a video signal of one field period for one of the two video signals for the eye, there is a video signal after three field periods from the specific radial position described above. A recorded information recording medium disk on which a control command signal is recorded that displaces a reproducing element inward by one recording trace interval both after the lapse of four field periods, and a simultaneous three-dimensional disk. In a recorded information recording medium disc on which a video signal of a sequential field period for one eye and a video signal of a sequential field period for the other eye in a television video signal are recorded, the above-mentioned specific radial position The video signal recorded in the 4th field of the video signal of the 4-field period recorded in one round starting from is the video signal for the left eye and the video signal for the right eye in the simultaneous stereoscopic television video signal. If it is a video signal of one field period for one eye out of the two video signals of , the audio signal accompanying the video signal for one field period is recorded, and for the portion near the end of the two portions mentioned above, the outside of the recording trace is recorded. The audio signal accompanying the video signal recorded in the recording trace adjacent to is recorded, and furthermore, in each one field period other than the above-mentioned field period.

Since the recorded information recording medium disk is configured to record the audio signal accompanying the video signal of each one field period, the recorded information recording medium disk of the present invention has a simultaneous type. This is because all video signals are recorded, including the left-eye video signal of the 3D television video signal and the right-eye video signal of the simultaneous 3D television video signal.

A 3D image can be reproduced by simultaneously reproducing 3D TV video signals from a recorded information recording medium disc, or a left eye video signal and a right eye video signal can be reproduced field sequentially from a recorded information recording medium disc. It goes without saying that it is possible to reproduce a three-dimensional image by reproducing the video signal of the recorded information recording medium disk, and a control command signal for displacing the reproducing element in a predetermined displacement manner is also provided on the recorded information recording medium disc. Since it is pre-recorded, when the information recording medium disk is played back with a conventional video disk player, only the video signal for one of the left and right eyes, which is predetermined, can be automatically played back. In addition, in the above case, even if the reproducing element starts tracing the wrong recording trace, a control command signal for displacing the reproducing element can be sent to the disc so that it can automatically return to the correct recording trace. Since the two-dimensional image is recorded in advance at a predetermined position, the two-dimensional image can be reproduced well, and furthermore, even if there is a defect in the displacement of the reproduction element that occurs when the image is reproduced, the state of reproduction of the audio signal is not deteriorated. Since the method of recording audio signals is determined, even if there is a shift in the displacement position of the reproduction element due to variations in the reproduction device, or if the reproduction element fails to read the displacement control command signal, the audio signal will be recorded. Furthermore, according to the recorded information recording medium disc of the present invention, the number of displacements of the reproducing element during reproduction of a field sequential type TV video signal can be reduced from the previously proposed recorded information. Since the number of recording media is smaller than that of disks, good audio signals can be obtained when playing field-sequential 3D images.Furthermore, it is also possible to obtain good audio signals when playing back stereoscopic images using a field-sequential method. In addition to being able to play back images and audio signals well, it can also be used as a player for stereoscopic TV video signals.

It is possible to successfully reproduce 3D images using simultaneous 3D TV video signals and 3. to reproduce 3D images using field sequential 3D TV multiplied signals. When the device is set to the double-speed quick motion image reproduction mode, the tracking reference signal fP1 and the tracking reference signal fP2 are switched in the recorded information recording medium 11D at the rear position (in this specification, At a position (radial position designated herein as U-U) two field periods later than the specified post-radial position (herein designated as U-U), the reproducing element automatically If the playback device is configured to be controlled so that the track is displaced to the inner circumferential side by one track interval, the playback device must be set to double-speed quick motion image playback mode. According to the recorded information recording medium disc of the present invention, the conventional problems can be solved by the recorded information recording medium disc of the present invention, such as being able to sequentially reproduce stereoscopic TV video signals from the recorded information recording medium disc shown in the first figure. All points and problems of existing proposals can be satisfactorily resolved.

[Brief explanation of the drawing]

1st Wi to 3rd r1! 1 and 5 are explanatory diagrams of the state of recording traces on the recorded information recording medium disk of the present invention, FIG. 4 is a diagram illustrating the position of displacement of the reproducing element, and FIG. 6 is a block diagram of the signal recording system. 7th rj! i is a signal waveform diagram, FIGS. 8 and 9 are block diagrams of a configuration example of a reproducing device, and FIG. 10 is a block diagram of a configuration example of a stereoscopic image display. D... Recorded information recording medium disk, 1... Left eye video signal generator for simultaneous stereoscopic television video signals,
2... A video signal generation device for the right eye of a simultaneous stereoscopic television video signal, 3... A video signal editing device, 4.
...Mixer, 5...Audio signal source, 6...Audio signal editing device, 7.10...Frequency modulator, 8...Additional signal generation circuit, 9...Signal generator , 11... Addition circuit, 12-14, 15, 15 n, 15 r--output terminal, S-- regeneration needle, Ap, Ap Q, Apr--preamplifier, OEM, DEM Q, DEMr.= demodulation AGC... automatic gain control circuit, KAG... control command signal extraction circuit, BPFI to BPF3... band pass filter. SvP...Signal polarity switching circuit, SPG...Switching pulse generator, KPG...Control signal generator, Detl~D
et3...Detector, DA,...Differential amplifier, TSC...
・・Servo circuit (tracking control circuit), ACT・・
・Actuator, FM...transfer mechanism, SWk・5・
Changeover switch, PG...displacement control signal generator. 1 chant

Claims (1)

[Claims] 1. A record in which video signals of four field periods are sequentially recorded for each round from a specific radial position to that radial position, forming one spiral record trace. The video signal of the four field periods in each of the above-mentioned sequential rotations is recorded on the recorded information recording medium disk in the first one-circulation period from the above-mentioned specific radial position on a simultaneous stereoscopic television. Of the two video signals of the left eye video signal and the right eye video signal in the John video signal, one field period video signal for one eye → one field period video signal for the other eye → A video signal of one field period for the other eye → a video signal of one field period for one eye is recorded, and the recording trace of one round following the recording trace described above has the specific radial position described above. Two video signals for the left eye and a video signal for the right eye in a simultaneous stereoscopic television video signal.
1 field period video signal for the other eye of the 2 video signals → 1 field period video signal for one eye → 1 field period video signal for one eye → 1 field period for the other eye Hereinafter, the following two video signals will be recorded in the same recording manner as the video signals of the sequential field periods in the recording traces of two consecutive laps described above. Recording of video signals for each recording trace is performed repeatedly, and the recorded signals in adjacent portions of the recording traces for each two revolutions are matched in the simultaneous stereoscopic television video signal. In a simultaneous stereoscopic television video signal, a video signal of successive field periods for one eye and a video signal of successive field periods for the other eye are recorded. On the recorded information recording medium disc 2, which is made of It is a recorded information recording medium disk, and the video signals of the four field periods for each successive revolution as described above are recorded in the recording trace of the period of the first revolution from the specific radial position as described above. Of the two video signals of the left eye video signal and the right eye video signal in the stereoscopic television video signal, the video signal for one field period for one eye → the video signal for one field period for the other eye The signal → the video signal for one field period for the other eye → the video signal for one field period for the one eye is recorded, and the recording trace of one round following the above-mentioned recording trace has the above-mentioned specific information. Two video signals for the left eye and a video signal for the right eye in a simultaneous stereoscopic television video signal from a radial position
1 field period video signal for the other eye of the 2 video signals → 1 field period video signal for one eye → 1 field period video signal for one eye → 1 field period for the other eye Hereinafter, the following two video signals will be recorded in the same recording manner as the video signals of the sequential field periods in the recording traces of two consecutive laps described above. Recording of video signals for each recording trace is performed repeatedly, and the recorded signals in adjacent portions of the recording traces for each two revolutions are matched in the simultaneous stereoscopic television video signal. In a simultaneous stereoscopic television video signal, a video signal of successive field periods for one eye and a video signal of successive field periods for the other eye are recorded. In a recorded information recording medium disc consisting of a disk, a recording signal of one field period starting from the specific radial position in the recording trace of one revolution from the specific radial position is the same as that of the left eye in a simultaneous stereoscopic television video signal. At the beginning of a recording trace, such as a video signal for one field period for the other eye of the two video signals, one for the right eye and the other for the right eye, there is a signal from the specific radial position described above. At the time after one field period has elapsed, the reproducing element is displaced outward by one recording trace interval, and at the same time both after the elapse of three field periods and after the elapse of four field periods from the above-mentioned specific radial position. A control command signal that displaces the reproducing element inward by one recording trace interval is recorded, and a control command signal for one field period starting from the specific radial position is recorded in one recording trace from the specific radial position. A record trace in which the recorded signal is a video signal of one field period for one eye out of two video signals, a video signal for the left eye and a video signal for the right eye, in a simultaneous stereoscopic television video signal. The head part includes a control command for displacing the reproducing element inward by one recording trace interval both after the lapse of 3 field periods and after the lapse of 4 field periods from the above-mentioned specific radial position. A recorded information recording medium disk 3 on which signals are recorded, video signals of 4 field periods are sequentially recorded for each revolution from a specific radial position to that radial position, forming a single spiral record trace. is a recorded information recording medium disk in which a video signal of 4 field periods for each successive round described above is recorded on the recording trace of the period of the first one round from the above-mentioned specific radial position. is a video signal of one field period for one eye of two video signals, a video signal for the left eye and a video signal for the right eye, in a simultaneous stereoscopic television video signal → a video signal for the other eye of 1 field period A video signal of a field period → a video signal of one field period for the other eye → a video signal of one field period for one eye is recorded, and in the recording trace of one round following the aforementioned recording trace, Two video signals for the left eye and a video signal for the right eye in the simultaneous stereoscopic television video signal from the specific radial position described above.
1 field period video signal for the other eye of the 2 video signals → 1 field period video signal for one eye → 1 field period video signal for one eye → 1 field period for the other eye Hereinafter, the following two video signals will be recorded in the same recording manner as the video signals of the sequential field periods in the recording traces of two consecutive laps described above. Recording of video signals for each recording trace is performed repeatedly, and the recorded signals in adjacent portions of the recording traces for each two revolutions are matched in the simultaneous stereoscopic television video signal. In a simultaneous stereoscopic television video signal, a video signal of successive field periods for one eye and a video signal of successive field periods for the other eye are recorded. In the recorded information recording medium disk, the video signal recorded in the 4th field of the video signal of 4 field periods recorded in one revolution starting from the specific radial position described above is:
If the video signal is for one field period of one of the two video signals, the left eye video signal and the right eye video signal, in a simultaneous stereoscopic television video signal, the 4 For the part near the start of the two parts obtained by arbitrarily dividing the first field period into two,
The audio signal accompanying the video signal for one field period is recorded, and for the portion near the end of the two portions described above, the recording adjacent to the outside of the recording trace is recorded. The audio signal accompanying the video signal recorded in the trace is recorded, and furthermore, in each one field period other than the above-mentioned field period, the audio signal accompanying the video signal of each one field period is recorded. A recorded information recording medium disk on which an accompanying audio signal is recorded.