JPH0376083A - Control method for disk player - Google Patents

Abstract

PURPOSE:To constitute the disk player so that dubbing to a magnetic tape capable of reverse recording can be executed simply and efficiently by a time fade function by constituting it so that the time set in advance can be set again after a first fade-out control is ended. CONSTITUTION:In the case the time of a time fade mode is set by an input operating part 11, and a setting operation of the time fade mode is executed, a system controller 10 executes a first fade-out control after waiting for lapse of the time set in advance. Subsequently, when a first fade-out control is ended, the time fade mode is continued by setting again the time set in advance, and when a second fade-out control is ended, the time fade mode is released. In such a way, dubbing to a magnetic tape capable of reverse recording can be executed simply and efficiently by a time fade function.

Description

Detailed Description of the Invention 8. Field of Industrial Application The present invention relates to a method for controlling a disc player such as a CD player that plays a compact disc (CD) on which digital audio signals are recorded, The present invention relates to a control method in a time fade mode in which fade-out control is performed after a preset time has elapsed.

B. Summary of the Invention The present invention automatically resets the time for fade-out control in the time fade mode of a disc player such as a CD player that plays a compact disc (CD) on which a digital audio signal is recorded.
By performing fade-out control twice during the time fade mode, it is possible to efficiently dub, for example, a disc playback output onto a magnetic tape.

C. Conventional technology Disc players such as CD players have a time fade function that allows the purpose of dubbing the disc playback output onto magnetic tape using a cassette deck, etc., to match the length of the magnetic tape being used. We are prepared. Generally, this time fade function is realized by automatically performing fade-out control near the end of the tape based on time settings.

With conventional CD players, when stopped or paused, use the time fade setting operation S to set the time.
For example, when using a 46-minute tape, the time fade time is set to 23 minutes ooo seconds. In a CD player with a time fade function, after setting the time fade time,
When playing, the elapsed time is determined from the time information recorded on the CD, and the set time is subtracted.
The fade-out is completed when the remaining time reaches zero, and the fade-out function is activated so that the time is stopped, and when the fade-out ends, the time fade function ends. Additionally, the time fade function was canceled when the disc was removed from the player or stopped during playback.

D. Problems to be Solved by the Invention Incidentally, an audio magnetic tape generally used as a recording medium in a cassette deck has a plurality of recording tracks arranged in parallel, and reciprocating recording is performed.

Therefore, in the time fade function of the conventional disc player, when dubbing the disc playback output onto a magnetic tape, after completing the recording on the tape side A, that is, the outward recording track, with a time fade, When continuing to dub to , in order to end with a time fade even at the end of side 1B, the time fade function must be set again.

Furthermore, when a disc with a short playing time is played back, the playing of the disc ends before the end of the tape, making it impossible to use the time fade function effectively when dubbing multiple single discs.

SUMMARY OF THE INVENTION In view of the above-mentioned problems with the time fade function in conventional disk players, it is an object of the present invention to easily and efficiently perform dubbing onto a magnetic tape on which reciprocating recording is performed using the time fade function. That is.

Means for Solving Et5B In order to achieve the above-mentioned object, the disc player control method according to the present invention provides a time fade mode in which fade-out control is performed after a preset time has elapsed for the disc playback output of the disc player. , wait for the elapse of a preset time to perform the first fade-out control, and when the first fade-out control is finished, reset the preset time, and the elapse of this reset time. The present invention is characterized in that the second fade-out control is performed after waiting for the second time, and the time fade mode is canceled when the second fade-out control is completed.

F Function: In the disk player control method according to the present invention, n is performed in the first fade-out system after waiting for the elapse of a preset time, and the magnetic tape on which reciprocating recording is performed is performed by the first fade-out control. When dubbing to , the disc playback output is time-faded near the end of the tape on the outward path.

When the first fade-out control is completed, the preset time is reset. This continues the time fade mode.

The second fade-out control is performed after waiting for the elapse of the reset time. By this second fade-out control, when dubbing to a magnetic tape where round-trip recording is performed, the disk is Time fade the playback output.

When the second fade-out control is completed, the time fade mode is canceled.

G. Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a flowchart for explaining a specific embodiment of the present invention, and FIG. 2 shows a disc in which the time fade mode control operation is performed according to the procedure shown in the flowchart of FIG. FIG. 2 is a block diagram showing a schematic configuration of a player.

First, the general configuration of the disc player will be explained using FIG. 2.

The disc player shown in FIG. 2 is an optical player that reproduces information from the compact disc 1. As shown in FIG.

The compact disc I is given a predetermined rotation by a spindle motor 3 driven by a motor control section 2. Further, the information recorded on this compact disc 1 is optically read by an optical head 4 which is information reading means.

The optical helad 4 irradiates the compact disc 1 with a light beam such as a laser beam, and
An information read signal is generated by detecting a light beam modulated according to the information recorded on the compact disc 1 and reflected by the compact disc 1 with a photodetector. The optical head 4 also includes a focus control means for keeping the light beam incident on the compact disk 1 in an appropriate focused state, and a focus control means for keeping the light beam incident on the compact disk 1 in an appropriate focused state, and a focus control means for keeping the light beam incident on the compact disk 1 on the recording track of the compact disk 1. It also has a built-in tracking control means for tracking. Further, the optical head 4 is entirely moved in the radial direction of the compact disc 1.

The information read signal obtained by the optical head 4 is supplied to a read signal processing section 6 via a regenerative amplifier 5.

The read signal processing section 6 reproduces TOC data, performance data, address data, etc. representing the recorded contents of the compact disc 1, total playback time, etc. from the information read signal. The read signal processing section 6 is composed of a digital signal processing circuit that reproduces the various data mentioned above from the information read signal by digital signal processing. The data necessary for the digital signal processing in the read signal processing section 6 is stored in a random access memory 7.

The performance data reproduced by the read signal processing section 6 is subjected to a desired filtering process via a digital filter 8 and is supplied to a digital-to-analog converter 9. This digital-to-analog converter 9 converts the performance data into analog and outputs it as a reproduced audio signal.

Furthermore, the TOC data, address data, etc. reproduced by the read signal processing section 6 are sent to the system controller 10.
is supplied to.

Connected to the system controller 10 is an input operation section 11 for manually operating settings such as the operating mode of the disc player, and a non-volatile random access memory 1 backed up by a battery or the like.
2 are connected.

The system controller IO controls the operation of the read signal processing section 6, the digital filter 8, the head servo section 13, the display section 14, etc. using the TOC data and the operation mode set by the input operation section 11. This is done based on address data, etc.

Next, regarding the control operation of the time fade mode in this disc player, that is, a specific example of the method of the present invention,
This will be explained according to the flowchart shown in FIG.

As shown in the flowchart of FIG. 1, the system controller 10 uses the input operation section 11 to set the time to start fade-out to X, for example.
When the time fade mode time is set to seconds and the time fade mode set operation is performed, first,
In a first step S1, display contents indicating that the first fade-out control operation will be performed are displayed on the display section 14 together with the display contents for the time X seconds. Here, the display content indicating that the first fade-out control operation is performed is displayed on the display section 1 as [Side A], for example.
4 will be displayed.

In the next second step S2, the input operation unit 11 performs a determination process as to whether or not the time fade mode setting operation has been performed again.If the determination result in this second step S2 is YES, that is, the time fade mode setting operation If SI! is performed again, the 12th step SI! will be described later. to cancel the time fade mode and immediately end the time fade mode control operation. If the determination result in the second step St is No, that is, the time fade mode has not been reset, the process moves to the next third step S.

In the third step Ss, a determination process is performed to determine whether or not the regeneration operation is in progress. If the determination result in the third step S is No, that is, the regeneration operation is not in progress, the process returns to the determination process in the second step S. .

By repeating the determination process of the second step S2 and the third step S, the time fade mode can be canceled by re-centing the time fade mode, or the playback operation can be changed by using the input operation section 11. The start waits for a start operation to be performed, and if the determination result in the third step S3 is YES, that is, if the playback operation is in progress, the process moves to the next fourth step S4.

In the fourth step S4, the previous Y
In this fourth step S4, in which a determination process is performed to determine whether one second has elapsed since the determination result of ES was obtained, the determination result is NO.
If so, the process repeatedly returns to the determination process in the second step S to wait for one second to elapse, and when the determination result in the fourth step S4 becomes YES, the process moves to the next fifth step S%.

In the fifth step SS, the time information TIME is decremented in units of one second.

In the next sixth step S, a process is performed to determine whether or not the time information TIME decremented in the fifth step S has become smaller than the previously set time X seconds. In S!, if the determination result is No, the second step S! By repeatedly returning to the determination process in step S, the user waits for the set time X seconds to elapse, and if the determination result in step S is YES, that is, when the time X seconds have elapsed from the start of the playback operation, the next 7th
Move to step S.

7th step S? Now let's start fade-out control. This fade-out control is performed by controlling the amount of attenuation of an attenuator built into the digital filter 8.

In the next eighth step S, a process of determining whether or not a fade-out control operation is being performed is performed.
Then, if the determination result is YES, that is, the fade-out control operation is in progress, this eighth step S is performed.

By repeating the determination process, the completion of the fade-out control operation is waited for. If the determination result in this eighth step S is No, that is, the fade-out control operation is completed, the process moves to the next ninth step S.

In the ninth step S, a [Side A] display indicating that the first fade-out control operation is to be performed is displayed on the display section 1.
In this ninth step S, in which a determination process is performed to determine whether or not step 4 has been performed, if the determination result is YES, that is, the [Side A] display state, the next first O step S is performed. Moving on to
Further, if the determination result is No, that is, the [Side A] display state is not displayed, the process moves to the 12th step S+Z, which will be described later.

In the tenth step 5lll, the display on the display section 14 changes from the display state [Side A] indicating that the first fade-out control operation will be performed to [Side B] indicating that the second fade-out control operation will be performed. Performs display control to switch to display state.

In the next eleventh step S, a reset control operation is performed to reset the time fade time to the previously set time.

After performing the time fade time resetting control operation in the eleventh step S, the system controller 10 returns to the determination process in the second step S2. Then, the second step S! By repeating the processing operations from step S to ninth step S, a second fade-out control operation is performed. Then, when this second fade-out control operation is completed, the display section 14 displays [Side B].
Since it is in the display state, the determination result in the ninth step S9 is YES, and the next twelfth step S1
Move to □.

In the twelfth step S+Z, the time fade mode is canceled and the control operation of the time fade mode is ended.

Note that the time fade mode in which the above-described control operations are performed by the system controller 10 is designed so that it will not be canceled by stopping the playback operation or removing the disc.

In a disc player that performs such a time-fade mode control operation, when dubbing the disc playback output onto a magnetic tape by round-trip recording, all you need to do is set the time equivalent to one side of the magnetic tape as the time-fade time. , it is possible to perform efficient dubbing recording with fade-out by time fading near each tape end of the tape A side and the Q1B side.

In addition, with the above disc players, it is possible to stop the playback operation,
By not canceling the time fade mode by removing the disc, even when selectively dubbing only desired tracks from multiple discs, the above-mentioned time fade mode control operation can be used to eliminate waste when dubbing only desired tracks from multiple discs. Dubbing recording can be performed.

H Effects of the Invention As described above, in the disk player control method according to the present invention, the first fade-out control is performed after a preset time has elapsed, so that dubbing to a magnetic tape on which reciprocal recording is performed is performed. In this case, it is possible to time-fade the disc playback output near the end of the tape on the outward path. Furthermore, when this first fade-out control is completed, the above-mentioned preset time is reset, and the second fade-out control is performed after waiting for the elapse of this reset time to perform round-trip recording on the magnetic tape. When dubbing to , it is possible to time-fade the disc playback output at the end of the tape on the outward path.

As described above, in the control method for the original disk player according to the present invention, the preset time is reset after the first fade-out control is completed, so that dubbing to the magnetic tape where round-trip recording is performed is performed without time fading. The functions can be easily and efficiently performed.

Read signal processing section digital filter system controller Input operation section

Claims (1)

[Claims] In a time fade mode in which fade-out control is performed after a preset time has elapsed for the disc playback output of a disc player, the first fade-out control is performed after the preset time has elapsed, and the above-mentioned method is implemented. When the first fade-out control is finished, reset the above preset time, wait for the reset time to elapse, and perform the second fade-out control, and when the above second fade-out control is finished, A method of controlling a disc player characterized by canceling a time fade mode.