JPH0265378A - Still picture recording and reproducing device - Google Patents

Abstract

PURPOSE:To improve operability and to prevent erroneous operation by recording an external signal, which is inputted from a regenerator, to the recording element of a still video camera and effectively utilizing the recording element in a setting condition for the still video camera excepting for the storage of a picture signal by photographing. CONSTITUTION:For a still video camera 1, a recording amplifier 8 and a reproducing amplifier 18 are selectively connected to a recording head 9 by a first changing-over switch 19. At the time of reproducing, the picture signal to be recorded to a magnetic sheet 11 is outputted through the recording head 9 and reproducing amplifier 18 to a regenerator 2. The signal from the reproducing amplifier 18 can be inputted to a signal processing circuit 20 in the regenerator 2 side. In the regenerator 2, a recording and reproducing switch detecting circuit 28 is provided to receive a signal from a changing-over switch 27 and to detect the switching condition of reproducing function or recording function. A system control circuit 14 executes the switching control of first, second and third changing-over switches 19, 22 and 23 on the basis of an output signal from the recording and reproducing switch detecting circuit 28 so that the respective switches can be automatically contacts to correspond to the reproducing function or recording function.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a still image recording/playback device configured by connecting a still video camera and a playback device.

<Prior Art> In recent years, still video cameras equipped with a recording means for signal-processing an image of a subject formed on a solid-state image element such as a CCD and recording it on a recording element such as a magnetic sheet, and this recorded image have been developed. Regenerators that reproduce still images have been put into practical use.

By the way, if the above-mentioned recording element such as a magnetic sheet is installed in a recording/playback device having a recording function and a playback function, it is possible to record image signals such as image signals outputted from AV equipment such as a video tape recorder and image signals such as computer graphics. but,
In a still video camera, only the image of the subject formed on a solid-state imaging device such as a CCD can be converted into an electrical signal and recorded on a recording element such as a magnetic sheet.
A recording element such as a magnetic sheet set in a still video camera cannot be used effectively.

In other words, the usage range of recording elements such as magnetic sheets that are set in still video cameras is extremely narrow. If it is possible to record image signals output from AV equipment such as recorders and image signals such as computer graphics, the still video camera itself can be used effectively.

For this reason, the still video camera has an external signal input terminal,
A processing means for processing an external signal input through the terminal, and a selection means for selecting the processed external signal and an image signal output from a CCD, etc., from an AV device such as a video tape recorder. A device has been proposed in which an output image signal or an image signal such as computer graph ink can also be recorded on a recording element such as a magnetic sheet.

<Problems to be Solved by the Invention> However, when a still video camera is provided with an external input terminal to record image signals from the outside, the structure of the still video camera itself becomes complicated. However, as the camera body continues to become lighter and smaller, it becomes heavier and larger, making still video cameras less portable and smaller.
This results in poor maneuverability.

In view of the above-mentioned conventional circumstances, the present invention is a still image recording/playback device configured by connecting a still video camera and a playback device. By configuring the recording element to record data, the recording element set in the still video camera can be effectively used for purposes other than storing image signals caused by shadows, and the structure of the still video camera can be prevented from becoming complicated. The purpose of this invention is to provide a still image recording/playback device that can perform the following functions.

<Means for Solving the Problems> For this reason, the still image reproducing device of the present invention is a still video camera equipped with a recording means for signal processing an image of a subject formed on a solid-state image sensor and recording it on a recording element. and a regenerator having a reproducing means for reproducing the image signal recorded on the recording element, the still image recording/reproducing device being able to be electrically and detachably connected to the reproducing device, wherein the reproducing device includes an external signal input means. and an external signal processing means for processing an external signal inputted through the external signal inputting means, while the still video camera is provided with the signal-processed external signal and outputted from the solid-state imaging device. A selection means is provided for selecting an image signal and inputting the selected image signal to the recording means.

In addition, when inputting an external signal, a control circuit may be provided to control the recording means so as to record only the external signal selected based on the operation of the release switch, or when inputting an external signal to the external signal input means, the control circuit may be provided. It is preferable to provide a means for energizing only the recording system.

Furthermore, the reproducer is provided with an erasing circuit for erasing the image signal recorded on the recording element, and the still video camera is provided with a circuit for inputting the erasing signal outputted from the erasing circuit to the recording means.

A changeover switch that switches between a playback function and an external signal recording function, a detection circuit that receives a signal from the changeover switch and detects the switching state of the playback function or recording function, and a The camera is equipped with a control circuit that controls the still video camera to have a circuit configuration compatible with the playback function or recording function, or
A changeover switch that switches between a playback function and an external signal recording function and an erase function; a detection circuit that receives a signal from the changeover switch and detects the switching state of any of the playback function, the record function, and the erase function; and the detection circuit. It is preferable to include a control circuit that controls the still video camera side to have a circuit configuration corresponding to any one of the playback function, recording function, and erasing function based on the output signal from the still video camera.

Effects> In this configuration, during normal photographing and recording with a still video camera, the selection means selects the image signal output from the solid-state image sensor and inputs it to the recording means.

Then, an optical image of the subject is formed on the light-receiving surface of the solid-state image sensor and photoelectrically converted, and the analog image signal from the solid-state image sensor is processed by a signal processing circuit and recorded on the recording element by a recording means.

Next, during reproduction, the image signal recorded on the recording element is reproduced by the reproduction means and output to, for example, a TV monitor.

On the other hand, when recording an external signal, the selection means selects the signal-processed external signal and inputs it to the recording means.

An external image signal from a video tape recorder or the like connected to the playback device is input to the signal processing circuit via an external signal input terminal. An external image signal from a video tape recorder or the like is visually recognized on a TV monitor, a desired image is selected, and the external image signal selected by the release/release operation is recorded on a recording element by a recording means.

Therefore, as described above, the recording element set in the still video camera can be effectively used for purposes other than storing image signals obtained by photography, and furthermore, the structure of the still video camera can be prevented from becoming complicated.

Further, when an external signal is input, by energizing only the external signal recording system, it is possible to reliably record only the desired external signal and to save power.

In addition, if the still video camera side is configured to automatically control the circuit configuration to be compatible with the playback function or recording function, it will not be necessary to change the circuit configuration of the still video camera, and the circuit configuration will be changed. There is no need to forget to change the switch, and there is no need to worry about erroneously performing a switch operation.

Furthermore, if the camera is equipped with an erasing function in addition to recording and playback, it will be easier to use and more convenient.Moreover, if the circuit configuration of the still video camera is automatically switched to the erasing function, Improves operability and prevents erroneous operations.

<Example> Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing an embodiment of a still image recording and reproducing apparatus according to the present invention, which is configured by connecting a still video camera 1 and a reproducing device 2. FIG. An optical image of the subject from the optical lens 3 is formed on the light receiving surface of a CCD (charge coupled device) 5 via a shutter/diaphragm 4.

The CCD 5 photoelectrically converts the formed optical image and outputs an analog image signal to the signal processing circuit 6. This signal processing circuit 6 separates the analog image signal into a luminance signal including a synchronization signal and a color signal, and outputs the separated signals to an FM modulation circuit 7. The FM modulation circuit 7 performs FM (frequency) modulation on the luminance signal and color signal, and outputs the resultant signals to the recording head 9 via the recording amplifier 8. The recording head 9 is driven by a head drive mechanism 10 to record the luminance signal and color signal on the magnetic sheet 11. The magnetic sheet 11 is rotationally driven by a motor 13 that operates based on a drive signal number output from a servo circuit 12. The system control circuit 14 receives signals from the release switch 15, etc., and controls the shutter/diaphragm 4, the servo circuit 12, etc. The synchronization signal generation circuit 16 is designed to generate a synchronization signal for synchronizing the operations of each circuit. The driver 17 is configured to issue a drive signal to the CCD 5 in synchronization with the signal output from the synchronization signal generation circuit 16.

The still video camera 1 is configured to output the image signal recorded on the magnetic sheet 11 to the regenerator 2 during reproduction. That is, a reproducing amplifier 18 is provided, and the recording amplifier 8 and the reproducing amplifier 18 can be selectively connected to the recording head 9 by means of a first changeover switch 19. During playback, the image signal recorded on the magnetic sheet 11 is output to the playback device 2 via the recording head 9 and the playback amplifier 18. The signal from the reproducing amplifier 18 can be input to the signal processing circuit 20 of the two regenerators. This signal processing circuit 20 is connected to an output terminal 21 that outputs an image signal to a TV monitor or the like.

The output terminal of the signal processing circuit 6 to which the analog image signal outputted from the CCD 5 is input is connected to the second changeover switch 2.
The output terminal of the switch 22 is connected to the input terminal of the FM modulation circuit 7. The output terminal of the synchronization signal generation circuit 16 is connected to the third changeover switch 2
The output terminal of this switch 23 is input to the servo circuit 12.

On the other hand, in the player 2, an external signal input terminal 24 is attached to the outer wall thereof, and an output terminal of an AV device such as a video tape recorder, a computer, etc. can be connected to this external signal input terminal 24. . An external image signal (including a synchronization signal) as an external signal inputted from the external signal input terminal 24 is inputted to an external signal processing circuit 25 and a synchronization signal separation circuit 26 . External signal processing circuit 25
processes the input external image signal and outputs it to the B input terminal of the second changeover switch 22. Further, the synchronization signal separation circuit 26 separates only the external synchronization signal from the input external image signal, and transfers this external synchronization signal to the third changeover switch 23.
output to the B input terminal.

The playback device 2 includes a changeover switch 27 for switching between a normal playback function and a recording function for inputting an external signal and outputting it to the still video camera l, and a changeover switch 27 for switching between the normal playback function and a recording function for inputting an external signal and outputting it to the still video camera l, and for switching between the playback function or the recording function in response to a signal from the changeover switch 27. A recording/reproducing switching detection circuit 28 for detecting a switching state of functions is provided.

A control circuit is provided which controls the still video camera 1 to have a circuit configuration corresponding to a playback function or a recording function based on the output signal from the detection circuit 28. The function of this control circuit is handled by the system control circuit 14 on the still video camera 1 side. That is, the system control circuit 14 controls the first... The second and third changeover switches 19, 22 and 23 are configured so that they automatically become contacts corresponding to the playback function or the recording function, respectively.
It is configured to switch and control these switches 19, 22 and 23.

Also, 1st. 2nd and 3rd changeover switch 19.22 and 2
3 can also be switched by manual switches (not shown). Further, the second and third changeover switches 22 and 23 are designed to switch in synchronization.

In addition, the B terminal of the second changeover switch 22 and the B terminal of the third changeover switch 23 of the playback amplifier 18° on the still video camera 1 side
The terminals are connected to terminals a to c formed on the outer wall surface of the main body of the still video camera 1, and are connected to the signal processing circuit 20. The external signal processing circuit 25 and the synchronization signal separation circuit 26 are connected to terminals df formed on the outer wall surface of the main body of the regenerator 2.
It is connected to the. The terminals a to c on the main body side of each still video camera 1 and the terminals df on the main body side of each regenerator 2 are connected via connectors 29.

Also, the recording/re-switching detection circuit 28 is similarly connected to the terminal g on the outer wall of the main body of the player 2, and is connected via the connector 29 to the input terminal of the system control circuit 14 provided on the outer wall of the still video camera 1 main body. connected to

Here, such a still image recording/playback device includes a control circuit that controls the recording means to record only the external signal selected based on the operation of the release switch 15 when an external signal is input, and a control circuit that controls the recording means to record only the external signal selected based on the operation of the release switch 15. A means for energizing only the external signal recording system at the time of input is provided.9 This control circuit and the energizing means are connected to the system control circuit 2.
6 is responsible for that function.

In such a configuration, during normal shooting and recording with the still video camera, the first
．． The contacts of the second and third changeover switches 19, 22 and 23 are respectively switched to the A input terminal side as shown in the figure. Then, the release switch 15 is turned on to control and adjust the opening/closing of the shutter/diaphragm 4, and an optical image of the subject is formed on the light receiving surface of the CCD 5 for photoelectric conversion. After the analog image signal from the CCD 5 is processed by the signal processing circuit 6,
First changeover switch 19. The image signal is input to a recording head 9 via an FM modulation circuit 7 and a recording amplifier 8, and the recording head 9 records the image signal on a magnetic sheet 11 as a recording element.

Next, a case will be described in which the regenerator 2 is connected to the still video camera 1 to reproduce or record an external signal.

The main body of the regenerator 2 is connected to the main body of the still video camera 1, and each terminal a-c and d-f are connected via a connector 29.

Next, when the selector switch 27 is switched to the playback side, the recording/replay switch detection circuit 28 receives a signal from the switch 27 and detects the playback switch state, and based on this detection signal, the system control circuit 14 switches to the first Changeover switch 1
Switch the contact point 9 to the B input terminal side. by this,
The reproducing amplifier 19 is connected to the recording head 9, the signal from the reproducing amplifier 19 is input to the signal processing circuit 20 on the regenerator 2 side and processed, and the image signal recorded on the magnetic sheet 11 is output to the TV monitor. be done.

On the other hand, when the selector switch 27 is switched to the recording side, the recording/re-switching detection circuit 2 receives a signal from the selector switch 27.
8 detects the switching state of recording, and the system control circuit 14 switches the first changeover switch 19 based on this detection signal.
The contacts of the second and third changeover switches 22 and 23 are switched to the A input terminal side, and the contacts of the second and third changeover switches 22 and 23 are switched to the B input terminal side. As a result, the recording amplifier 8 is connected to the recording head 9, and the external signal processing circuit 25 of the two regenerators is connected to the FM
The synchronous signal separation circuit 26 is connected to the servo circuit 12 in the modulation circuit 7.
are connected to each other.

Therefore, an external image signal from a video tape recorder or the like connected to the player 2 is input to the external signal processing circuit 25 via the external signal input terminal 24.

Then, the external image signal from a video tape recorder etc. is transmitted to the TV.
A desired image is visually checked on the monitor, and the selected external image signal is transmitted by operating the release switch 15.
Second changeover switch 22. The signal is input to the recording radar 9 via the FM modulation circuit 7 and the recording amplifier 8, and is recorded on the magnetic sheet 11 by the recording radar 9.

According to the still image recording/playback device having such a configuration, the playback device 2 is provided with an external signal input terminal 24 and an external signal processing circuit 25, and an external image signal from a video tape recorder or the like is connected to the playback device 2. Since it is possible to record on the magnetic sheet 11 set in the still video camera 1, the recording element such as the magnetic sheet 11 has a recording and reproducing function in addition to the image signal obtained by shooting. Similar to the recording element installed in the device, AV such as video tape recorder
It is possible to record image signals such as image signals output from equipment and computer graphics, and to make effective use of recording elements such as the magnetic sheet 11 set in the still video camera 1, and to make effective use of the still video camera 1 itself. become.

Moreover, since the regenerator 2 is provided with an external signal input terminal 24 and an external signal processing circuit 25, it is possible to prevent the structure of the still video camera 1 itself from becoming complicated, which would lead to an increase in the weight and size of the camera 1 body. Therefore, there will be no adverse effect on the current situation where the still video camera 1 is becoming lighter and smaller, and the still video camera 1 will be more portable.
It can promote mobility.

To explain an example of how such a still image recording/playback device is used, for example, the still video camera 1 is used for normal shooting/playback.
Immediately after recording, the recording is played back on the spot by the player 2 and displayed on the TV monitor, and only the necessary images displayed on the TV monitor are transferred to the magnetic sheet 11 of the still video camera 1 by pressing the release switch 15. Images can be edited by recording operations.

That is, conventionally, when performing such editing,
Using two recording/playback devices or a recording/playback device and a playback device, after normal shooting/recording is performed with a still video camera, one device plays back and only the necessary images are transferred to the other device. It is necessary to record the information, which requires an expensive system and is also time-consuming.

In contrast, in this configuration, only the still video camera 1 and the regenerator 2 are required, resulting in an inexpensive system and the work can be completed in a short time.

Furthermore, an image is recorded in the first frame of the magnetic sheet 11 by normal photographing and recording, an image from a video tape recorder is recorded in the next frame, and an image such as computer graphics is recorded in the next frame. The operations of recording and finally recording the person in charge's face using normal photographing and recording can be easily performed in a series of operations.

Furthermore, according to the still image recording and reproducing apparatus having such a configuration, the system control circuit 14 controls the recording means to record only the external signal selected based on the operation of the release switch 15 when an external signal is input. In addition, since only the external signal recording system is energized when an external signal is input to the external signal input terminal 24, it is possible to reliably record only the desired external signal and to save power.

There is also a changeover switch 27 for switching between a normal playback function and a recording function that inputs an external signal and outputs it to the still video camera 1, and a switch 27 that receives a signal from the changeover switch 27 to change the switching state of the playback function or recording function. A recording/re-switching detection circuit 2 is provided to detect the switching, and based on the output signal from the detection circuit 2, the still video camera side 1 is controlled to have a circuit configuration compatible with the playback function or the recording function. Therefore, there is no need to take the trouble of switching the circuit configuration of the still video camera 1, there is no need to forget to switch the circuit configuration, and there is no need to worry about erroneous switching operations.

Next, another embodiment of the present invention will be described based on FIG.

In this embodiment, the reproducer 2 is provided with an erasing signal generating circuit 30 for erasing the image signal recorded on the magnetic sheet 2, and the erasing signal outputted from the erasing signal generating circuit 30 is sent to the recording head of the still video camera 1. Circuit 3 to input to 9
1 is provided. This circuit 31 connects a terminal l on the outer wall of the still video camera 1 body and a terminal j on the outer wall of the regenerator 2 body.
The connection is made by connecting with the connector 29.

This circuit 31 is selectively connected to the recording head 9 along with the recording amplifier 8 and reproduction amplifier 18 by the first changeover switch 19, and is additionally provided with a C input terminal.

In such a regenerator 2, the changeover switch 27 of the embodiment shown in FIG. 1 is additionally configured with a function to switch to an erase function in addition to a function to switch between a playback function and a recording function.
The detection circuit 32 has an additional function of detecting the switching state of the erase function. In this case, the system control circuit 14 controls the still video camera side based on the output signal from the detection circuit 32 so that the circuit configuration corresponds to one of the playback function, recording function, and erasing function.

That is, when the recording/re-erasing switching detection circuit 32 detects the switching state of the erasing function, the system control circuit 14 automatically controls the switching of the first changeover switch 19 so that the contact point corresponds to the erasing function. .

According to this embodiment, since the recording and reproducing (77M) also has an erasing function, it is excellent in usability and can further improve convenience.

Furthermore, the circuit configuration of the still video camera 1 can be automatically switched to the erasing function, which eliminates the need for switching the circuit configuration of the still video camera 1, as in the embodiment shown in FIG. There is no need to forget to change the configuration, and there is no need to worry about erroneous switching operations.

(Effects of the Invention) As explained above, according to the present invention, the regenerator is provided with an external signal input terminal and an external signal processing means, and an external image signal from a video tape recorder or the like is input to a still video connected to the regenerator. Since it is now possible to record on the magnetic sheet that is set in the camera, it is possible to effectively utilize the recording element such as the magnetic sheet that is set in the still video camera, and the still video camera itself can be used effectively. .

Moreover, since the regenerator is provided with an external signal input terminal and an external signal processing means, it is possible to prevent the structure of the still video camera itself from becoming complicated, and the camera body does not become heavier or larger. This does not adversely affect the fact that still video cameras are becoming lighter and more compact, and can promote the portability and maneuverability of still video cameras.

Further, according to the still image recording/playback device of the present invention, when an external signal is input, the recording means is controlled to record only the external signal selected based on the operation of the release switch, and the recording system for the external signal is Since only the desired external signals are energized, it is possible to reliably record only the desired external signals and to save power.

In addition, since the still video camera side is configured to automatically control the circuit configuration to be compatible with the playback function or recording function, there is no need to change the circuit configuration of the still video camera, and the circuit configuration can be changed. There is no need to forget to switch the switch, and there is no need to worry about incorrect switching operations.

Furthermore, since it has an erase function in addition to recording and playback, it has excellent usability and convenience.
Since the circuit configuration of the still video camera is automatically switched to the erase function, operability can be improved and erroneous operation can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of a still image recording/reproducing apparatus according to the present invention, and FIG. 2 is a block diagram showing another embodiment. 1...Still video camera 2...Player 3...
- Optical lens 5... CCD 6... Signal processing circuit 9... Recording head 11... Magnetic sheet 14... System control circuit 18...
Reproduction amplifier 19...1st changeover switch 22.
... Second changeover switch 23 ... Third changeover switch 24 ... External signal input terminal 25 ... External signal processing circuit 27 ... Changeover switch 28 ... Record
Re-switching detection circuit 29... Connector 30...
Erase signal generation circuit 31...Circuit 32...Record/re/erasure switching detection circuit

Claims (6)

[Claims] (1) A still video camera equipped with a recording means for signal-processing an image of a subject formed on a solid-state image sensor and recording it on a recording element, and a reproduction means for reproducing the image signal recorded on the recording element. In a still image recording and reproducing device that can be electrically connected to and detachably connected to a regenerator, the regenerator includes an external signal input means and an external signal inputted through the external signal input means. an external signal processing means, and the still video camera is provided with a selection means for selecting the signal-processed external signal and the image signal output from the solid-state imaging device and inputting the selected signal to the recording means. A still image recording/playback device characterized by the following. (2) In the still image recording/reproducing device according to claim 1,
A still image recording/reproducing device comprising a control circuit that controls a recording means to record only an external signal selected based on the operation of a release switch when an external signal is input. (3) The still image recording/reproducing apparatus according to claim 1 or 2, further comprising means for energizing only the external signal recording system when an external signal is input. (4) In the still image recording/reproducing apparatus according to any one of claims 1 to 3, the reproducer is provided with an erasing circuit for erasing the image signal recorded on the recording element, and the still video camera is provided with an erasing circuit for erasing the image signal recorded on the recording element, and the still video camera is provided with an erasing circuit for erasing the image signal recorded on the recording element. A still image recording/reproducing device comprising a circuit for inputting an output erasing signal to a recording means. (5) The still image recording/playback device according to any one of claims 1 to 4, further comprising a changeover switch for switching between a playback function and an external signal recording function, and a changeover switch for switching between a playback function and an external signal recording function, and a switch for switching between a playback function and an external signal recording function in response to a signal from the changeover switch. A still image comprising a detection circuit that detects a switching state of a recording function, and a control circuit that controls a still video camera to have a circuit configuration compatible with a playback function or a recording function based on an output signal from the detection circuit. Recording/playback equipment. (6) The still image recording/playback device according to any one of claims 1 to 4, further comprising a changeover switch for switching between a playback function, an external signal recording function, and an erasing function, and a playback upon receiving a signal from the changeover switch. A detection circuit that detects the switching state of any one of the function, recording function, and erasing function, and a circuit configuration in which the still video camera side supports one of the playback function, recording function, and erasing function based on the output signal from the detection circuit. A still image recording/playback device comprising a control circuit that controls the following.