JP2941935B2 - Playback device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a playback device, and more particularly, to control of a playback operation.

[Conventional technology]

Conventionally, a recording / reproducing integrated recording / reproducing apparatus having both a recording operation of recording information on a recording medium as a signal and a reproducing operation of reading and reproducing the information signal recorded on the recording medium is known. I have.

The recording / reproducing apparatus can be switched to a recording mode when used as a recording apparatus, and can be switched to a reproducing mode when used as a reproducing apparatus.

When the recording mode is selected, control is performed so that information can be recorded on the recording medium in accordance with the operation of the switch.

Further, when the reproduction mode is selected, control is performed to start an operation of reading and reproducing information recorded on the recording medium.

For example, in an electronic still camera device belonging to a recording / reproducing device, when used as a photographing device, a battery is generally used as a power source in order to emphasize portability such as outdoor photographing.

Since the power consumption in the recording (shooting) mode is not large, the number of shots can be sufficiently satisfied even if a battery is used as a power supply.

On the other hand, when used as a reproducing apparatus, a large amount of power is consumed in a reproducing mode because a spindle motor for rotating a magnetic sheet is constantly driven.

Therefore, when a battery is used as a power source, the reproduction time becomes extremely short, and an external power source is generally used.

[Problems to be solved by the invention]

However, in the conventional recording and reproducing apparatus, even when the recording and reproducing apparatus is used for a recording apparatus,
It is possible to switch the switch to playback mode,
If the switch is switched to the reproduction mode due to an erroneous operation, a reproduction operation for reading out and reproducing the information recorded on the recording medium will be started.

In particular, in a recording / reproducing apparatus having no means for notifying the reproducing operation, the reproducing operation state may be left as it is, in which case, the battery is unnecessarily consumed and recording cannot be performed at the time of recording. There was a problem.

In particular, in the case of an electronic still camera device, in the reproduction mode and the recording (photographing) mode, the magnetic sheet is always rotated in the reproduction mode, so that the power consumption is higher. It was worn out in a short time, which was a particular problem.

In view of the above-described background, an object of the present invention is to solve the problem relating to switching of the playback operation in a conventional playback device and to provide a playback device that is easy to use.

[Means for Solving the Problems] A reproducing apparatus according to the present invention comprises a reproducing means for reproducing information data from a recording medium on which information data is recorded, and outputs the information data reproduced by the reproducing means to an external device. Output means for connecting an external terminal of the external device, and the reproducing means responds to an attachment / detachment operation of the external terminal of the external device with respect to the output terminal. To suppress the reproduction operation.

〔Example〕

Hereinafter, a recording / reproducing apparatus according to an embodiment of the present invention, particularly, an embodiment relating to an electronic still camera will be described with reference to FIGS.

 1 to 3 show a first embodiment of the present invention.

FIG. 1 is a block diagram of an electronic still camera device according to a first embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views of a main part for explaining the embodiment.

In FIG. 1, reference numeral 1 denotes a photographing optical system, 2 denotes a shutter as an exposure control unit, and 3 denotes an image sensor (hereinafter, referred to as an image sensor) that converts a subject image formed by the photographing optical system 1 into an electric video signal.
CCD, 4 is a recording signal processing circuit for processing the video signal from the CCD 3 into a recording signal, 5 is a changeover switch having connection terminals 5a, 5b, 6 is for recording and reproducing on the disk-shaped magnetic sheet 7. Is a spindle motor for rotating the magnetic sheet 7 at a predetermined number of rotations.

9 is a reproduction signal processing circuit, 10 is the reproduction signal processing circuit 9
A reproduction signal output terminal 11 for outputting a signal supplied from the outside to the outside, and 11 is a central processing circuit (hereinafter, CPU) for controlling each unit.

Reference numeral 12 denotes a shooting mode switch for setting a shooting standby state so that a video can be recorded at any time in response to operation of a release switch (not shown).

Reference numeral 14 denotes a reproduction external terminal detection switch which is arranged in series with the reproduction mode switch and serves as second mode setting means for restricting switching to the reproduction mode.

2 and 3, reference numeral 15 denotes a reproduction external terminal for supplying a reproduction signal to an external input device (for example, a monitor, a printer, or the like), and reference numeral 16 denotes a part of an exterior cover. It has an opening that can be inserted. The output terminal 10 has contact pieces 10a and 10b as is well known, and is connected to the external terminal 15.

10c is a detection member for detecting whether the external terminal 15 is mounted on the output terminal 10. Also, the detection member
10c is slidable in the insertion direction of the external terminal 15 (the direction of the arrow A in the figure), and one end is urged by the detection switch 14.

Next, the operation of the first embodiment configured as described above will be described with reference to FIGS.

An operation when the video signal recording / reproducing device is used as a photographing device will be described.

When the switch 12 is closed, a shooting mode is selected, and a control signal is sent to each unit by the CPU 11,
The first-stage changeover switch 5 is connected to the recording connection terminal 5a side, and enters a photographing standby state.

With the operation of a release switch (not shown), an optical image properly formed on the CCD3 surface by the photographing optical system 1 and the shutter 2 is converted into an electric signal by the CCD3, and the electric signal is Recording signal processing circuit 4
And processed.

Next, a recording signal is supplied to the magnetic head 6, and the magnetic head 6 is contacted and recorded on the magnetic sheet 7 rotating at a predetermined rotation speed.

The operation when the video signal recording / reproducing device is used as a reproducing device will be described.

First, when the external terminal 15 is not connected to the output terminal 10, since the detection switch 14 is open as shown in FIG. 2, even if the reproduction mode switch 13 is closed. Since the signal for selecting the reproduction mode is not input to the CPU 11, the reproduction operation is not performed.

On the other hand, when the external terminal 15 is connected to the output terminal 10, the external terminal 15 is connected to each of the sections 10a and 10b in the output terminal 10 as shown in FIG. The end of the external terminal 15 is in contact with the detecting member.
By pressing 10c in the direction of arrow A, the detection switch 14 is closed. When the switch 13 is closed in this state, the CP
U11 sends a control signal for performing a reproducing operation to each unit.

According to the control signal of the CPU 11, the changeover switch 5 is connected to the reproduction connection terminal 5b side, drives the spindle motor 8 at a predetermined rotation speed, and is recorded on the magnetic sheet 7 rotating at the predetermined rotation speed. The video recording signal is read by the magnetic head 6.

The video recording signal read by the magnetic head 6 is supplied to the reproduction signal processing circuit 9 and output to the output terminal 10.

Then, the reproduction signal is supplied to the external terminal 15 through the contact pieces 10a and 10b, and the reproduction signal is output to the external input device.

By providing the switch 14 as the second mode setting means in series with the switch 13 as described above, when these switches 13 and 14 are made independent, that is, the switches 13 and 14 are Thus, the load on the CPU 11 can be reduced as compared with the case where the CPU 11 is provided in parallel.

In addition, when performing playback using the main unit, an external device is always connected to the main unit. Therefore, providing a switch as the second mode setting means at the output terminal is very convenient, and a switch is provided on the exterior of the main unit. It doesn't need to be attached, so it looks better.

Next, a second embodiment of the present invention will be described with reference to FIG.

FIG. 4 is a block diagram of an electronic still camera device according to a second embodiment.

In FIG. 4, 1 is a photographing optical system, 2 is a shutter,
3 is an image sensor (hereinafter, CCD), 4 is a recording signal processing circuit,
Reference numeral 5 denotes a changeover switch having connection terminals 5a and 5b.

6, a magnetic head, 7 a magnetic sheet, 8 a spindle motor, 9 a reproduction signal processing circuit, 10 a reproduction signal output terminal,
Numeral 11 'denotes a central processing circuit (hereinafter referred to as CPU), numeral 12 denotes a photographing mode switch, numeral 13 denotes a reproduction mode switch, and numeral 17 denotes a regulation switch which is a second mode setting means for regulating switching to the reproduction mode.

Next, the operation of the second embodiment configured as described above will be described with reference to FIG.

When the changeover switch 12 is closed and the photographing mode is selected, the same operation as in the first embodiment is performed, and a video recording signal is recorded on the magnetic sheet 7.

On the other hand, when the regulation mode switch 17 is not closed when the regeneration mode switch 23 is closed,
The CPU 11 'does not send a control signal for performing a reproducing operation to each unit.

On the other hand, when the regulation switch 17 is operated and closed, and when the reproduction mode switch 13 is closed, the CPU 11 'sends a control signal for performing a reproduction operation to each unit.

According to the control signal of the CPU 11 ', the changeover switch 5 is connected to the reproduction connection terminal 5b side, the spindle motor 8 is driven at a predetermined rotation speed, and the recording is performed on the magnetic sheet 7 rotating at the predetermined rotation speed. The recorded video signal is read by the magnetic head 6.

The video recording signal read by the magnetic head 6 is output to the output terminal 10 supplied to the reproduction signal processing circuit 9, and a reproduction signal is output to an external input device connected to the output terminal 10.

In the embodiments, the present invention is applied to an electronic still camera. However, the present invention is applied to an apparatus that records and reproduces audio and the like in addition to video as information by using an IC memory, an optical disk, and the like as a recording medium other than a magnetic sheet. can do.

〔The invention's effect〕

As described above, according to the present invention, the reproduction operation is suppressed in accordance with the attachment / detachment operation of the external terminal with respect to the output terminal for connecting the external terminal of the external device. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention, FIGS. 2 and 3 are cross-sectional views of main parts of the first embodiment, and FIG. 4 is a second embodiment of the present invention. It is a block diagram. DESCRIPTION OF SYMBOLS 1 ... Optical imaging system, 2 ... Shutter, 3 ... CCD (image sensor), 4 ... Recording signal processing circuit, 5 ... Changeover switch, 9 ... Reproduction signal processing circuit, 10 ... Reproduction output terminal, 10c Detecting member 11, 11 'CPU (Central processing unit), 12 Switch for recording mode, 13 Switch for reproducing mode, 14 Detector switch, 15 External terminal, 17 ... Control switch.

Claims (1)

(57) [Claims] A reproducing unit for reproducing the information data from a recording medium on which the information data is recorded; and an output unit for outputting the information data reproduced by the reproducing unit to an external device. Comprises an output terminal for connecting an external terminal of the external device, wherein the reproducing means suppresses a reproducing operation in accordance with an attaching / detaching operation of the external terminal of the external device with respect to the output terminal. apparatus.