JPH0344173A - Video pickup device - Google Patents

Abstract

PURPOSE:To vary voice information recording time in a still picture video information recording with the intention of the operator by regulating the recording of audio information onto a recording medium while still picture video information is recorded on the recording medium depending on the operating time length of a trigger switch. CONSTITUTION:With a trigger switch 13 operated once, a control section 11 sends a control signal to a storage section 1, a recording means 10 and a switcher 15 to record video information of a still picture stored in the storage section 7 into a recording medium. Moreover, when the operation of the switch 13 continues, the recording of the still picture video information to the recording medium continues and the control section 11 sends the control signal to the switcher 15 to send audio information to the recording means 10. Thus, the still picture video information and the audio information are recorded simultaneously to the recording medium. Furthermore, when the switch operation is stopped within a setting time, the recording of the audio information is stopped at that point of time. Thus, the audio information recording time while the still picture video information is recorded is varied by the intention of the photographer.

Description

[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD The present invention relates to a video shooting device.

[Prior Art] When a device that records moving images such as a video tape recorder (hereinafter referred to as VTR) captures and records a still image of a motionless subject, the screen of the captured still image cannot be sufficiently confirmed during playback. Moreover, in order to be able to search the recorded portion, it is necessary to continue photographing for at least several seconds to several tens of seconds with both the subject and the photographing device fixed. However, it is very difficult to take pictures in this way, and the resulting reproduced image is blurred due to so-called camera shake, resulting in an image that is difficult to see. Moreover, the burden on the photographer during photographing is large.

In order to solve these drawbacks, a method has been proposed in which a momentary image during shooting is temporarily stored in a digital memory or the like, and the video information of the stored still image is repeatedly recorded on a VTR or the like at an arbitrary time.

[Problems to be Solved by the Invention] When video information of still images is recorded on a VTR as described above, a problem arises in the recording of audio information during the recording of still image video information. Although dubbing is preferable, dubbing is essentially not possible when an audio recording means provided in a VTR or the like records an audio signal overlappingly with a video signal.

Therefore, audio information must be recorded simultaneously while still image video information is being recorded. For example, when recording a narration, etc., the current narration must be recorded at the still image recording time set on the device side. There was a problem in that the recording times had to be made to match, and the recording time of the narration had to be shortened, or conversely, the recording time of still images, which was set conversely, had to be changed.

The present invention has been made to solve these problems, and allows the photographer to reduce the recording time of audio information while recording still image video information without adding a large number of new operation units to the existing device. An object of the present invention is to provide a video photographing device that can be made variable according to the user's intention.

[Means for Solving the Problems] The present invention includes a video signal generation circuit that converts a photographed image into a video signal, and a control signal that is supplied to convert information as a still image from video information sent by the video signal generation circuit. a storage section for storing the still image information and transmitting the stored still image information according to the control signal; a recording means for recording the video information and electrically converted audio information on a recording medium according to the control signal; A switcher that controls the transmission of audio signals according to control signals
a circuit; a switch for instructing the recording of a still image in the recording means; a switch for controlling the recording time of video information of the still image on a recording medium provided in the recording means according to the length of operation time of the switch; and an audio signal; The present invention is characterized by comprising a control section that sends a control signal for controlling the recording time on the recording medium to the storage section, the switcher, and the recording means.

[Operation] With this configuration, once the switch is operated, the control section sends a control signal to the storage section, the recording means, and the switcher circuit, and the video information of the still image stored in the storage section is transmitted. It is recorded on a recording medium provided in the recording means.

Further, when the switch continues to be operated, recording of still image video information on the recording medium is continued, and the control section sends a control signal to the switcher circuit to send audio information to the recording means. Therefore, still image video information and audio information are simultaneously recorded on the recording medium. Note that if the switch operation is terminated within the set time, recording of audio information will stop at that point, and only still image video information will be recorded until the set time.

Furthermore, when the switch operation continues for a set time period or longer, the control section controls the storage section, the recording means, and the switcher so that recording of the still image video information and audio information on the recording medium is stopped at the same time as the switch operation ends. Sends control signals to the circuit.

[Embodiment] FIG. 1 showing an embodiment of the video photographing apparatus of the present invention shows a camera-integrated VTR in which a video camera and a VTR are integrally formed.

The input side of a charge-coupled device (hereinafter referred to as COD) l that converts an image captured through a photographic lens provided in the video camera section into an electrical signal is connected to an electrical signal sent out from the CCD 1 in accordance with a control signal sent out from the microcomputer 11. A COD driver 5 that controls timing is connected, and the CCD1
The output side of the CCD 1 is connected to an encoder circuit 3 that creates and sends out an NTSC video signal, for example, via a process circuit 2 that processes the electrical signals sent out by the CCD 1.

The output side of the encoder circuit 3 is directly connected to the selector circuit 4, and an A/D converter 6 that digitally converts the signal sent out by the encoder circuit 3, and stores video information sent out by the A/D converter 6. A digital memory 7 is connected to a selector circuit 4 via a D/A converter 8 that converts video information read from the digital memory 7 into analog, and the output side of the selector circuit 4 outputs video information and audio information to a recording medium. It is connected to the recording deck section IO.

The selector circuit 4 selects either the video information sent out by the encoder circuit 3 or the still image video information sent out by the D/A converter 8 according to a control signal supplied from the microcomputer 11, and This is a circuit that sends the signal to the deck section 10 of. The microcomputer 11 determines that it is in the still image recording mode when the trigger switch 13 connected to the input terminal of the microcomputer 11 is turned on, and records still images when the trigger switch 13 is turned off. It is determined that the mode is normal recording mode in which normal captured images are recorded without recording. Therefore, in response to the control signal sent by the microcomputer 11, the selector circuit 4 sends the video information sent by the D/A converter 8 to the deck section 10 in the still image recording mode, and the encoder circuit 3 in the normal recording mode. The deck unit 10 receives the video information sent by
Send to.

Further, in the still image recording mode, the digital memory 7 records stored video information in accordance with a control signal supplied from the microcomputer 11 for a set time set in a timer 12 connected to the microcomputer 11. A
The signal is sent to converter 8.

Further, on the input side of the deck unit 10, there is a switcher 15 that turns on and off the transmission of audio signals, and a microphone that converts audio into electrical signals via a microphone amplifier 16 that amplifies audio signals sent out from the microphone 14. 14 are connected.

The switcher 15 performs the above-mentioned on/off operation according to the control signal sent by the microcomputer 11, and in the still image recording mode, the switcher 15 performs the above-mentioned on/off operation according to the control signal sent by the microcomputer 11.
3 remains on for a predetermined period of time or more, it remains on only while the trigger switch 13 is on, and is always on in the normal recording mode.

Furthermore, the output side of a deck controller 9 that controls the video recording operation in the deck section IO is connected to the input side of the deck section IO. The deck controller 9 is a circuit that sends a signal to the deck unit 10 to operate the deck unit 10 in accordance with a control signal supplied from the microcomputer 11. In the still image recording mode, the deck controller 9 is a circuit that sends an image to the deck unit 10 at a time set in the timer 12 in the still image recording mode. Alternatively, the deck unit IO is operated while the trigger switch 13 is in the on state, and the deck unit IO is always operated during the normal recording mode.

The operation of the video photographing apparatus constructed in this way will be explained below with reference to FIGS. 1 and 2. In addition, St, S2, etc. described in FIG. 2 represent step 1, step 2, etc.
・Indicates.

In normal recording mode, the operator presses the trigger switch 13
There is no need to operate the trigger switch 13, and the trigger switch 13 is in the off state. Accordingly, the contact of the selector circuit 4 is connected to the encoder circuit 3 side by the control signal sent by the microcomputer 11, the deck controller 9 sets the deck section IO to the recording state, and the switcher 15 is always on.

The photographed image converted into an electrical signal by the CGDI is supplied as an NTSC video signal from the encoder circuit 3 via the process circuit 2 to the deck section 10 via the selector circuit 1, and is provided in the deck section 10. recorded on a recording medium.

Also, an audio signal converted into an electric signal by a microphone 14 is supplied to the deck section IO simultaneously with the video signal via a switcher 15 and a microphone amplifier 16, and is then supplied to the recording medium on which the video information is recorded. The above video information is recorded simultaneously.

Next, in the case of still image recording mode, in step 1, the operator first operates the trigger switch 13 to set the still image recording mode.

When the still image recording mode is set, the control signal supplied from the microcomputer 11 causes the digital memory 7 in step 2 to be sent from the encoder circuit 3 when the trigger switch 13 is operated, and is sent to the A/D converter. The video information supplied from 6 is stored as a still image. Then, in step 3, the count value of the timer 12 is reset to 0 by a control signal sent by the microcomputer 11, and in step 4, the timer 12 starts counting. Also, at the same time as the timer 12 starts counting, the deck controller 9 starts the microcomputer 2.
A control signal supplied from the controller enters the recording mode and sets the deck unit IO to a recordable state. At the same time, the contact of the selector circuit 4 is switched to the D/A converter 8 side by a control signal supplied from the microcomputer 2.

Therefore, in step 5, the reading of video information, which is a still image stored in the digital memory 7, is started, and the read video information is sent to the deck unit lO via the D/A converter 8 and the selector circuit 4. Recording is started on the recording medium provided at.

At this time, in step 6, the microcomputer 2 determines whether the trigger switch 13 is still being operated in the on state.

If the trigger switch 13 is already in the OFF state, the microcomputer 11 maintains the switcher 15 in the OFF state in step 8, and in step 9 the microcomputer 11 determines that the count value of the timer 12 is It is determined whether or not the set time has exceeded the set time, and if the set time has not been reached, steps 6 to 9 are repeated. When the set time has elapsed, the microcomputer 11, in step 10, sets the deck controller 9 to either the recording stop mode or the recording-time stop mode. Therefore, the deck part 10
The recording is stopped by a control signal supplied from the deck controller 9, or the recording is temporarily stopped. Also, at this time, the contact of the selector circuit 4 is switched to the encoder circuit 3 side.

On the other hand, if the trigger switch 13 is still on in step 6, the microcomputer 11 turns on the switcher 15 in step 7. Therefore, the audio information converted into an electrical signal by the microphone 14 is sent to the deck section 10 via the switcher 15 and the microphone amplifier 16. Thereafter, the microcomputer 11 repeats steps 6 and 7, and turns off the switcher 15 in step 8 when the trigger switch 13 is turned off by the operator. Next, the microcomputer 2 determines whether or not the count value of the timer 12 exceeds the set time in step 9. If the count value of the timer 12 does not exceed the set time, the microcomputer 2 proceeds to step 9 as described above. Steps 6 to 9 are repeated, but since the trigger switch 13 is already in the OFF state at this time, the microphone 1 is turned off until the count value of the timer 12 exceeds the set time and the deck unit 10 enters the recording stop mode or recording-time stop mode.
The audio information sent by 4 is not sent to the deck section 10 and is not recorded on the recording medium.

On the other hand, if the count value of the timer 12 exceeds the set time in step 9, the microcomputer 2 immediately sets the deck section 10 to the recording stop mode or the recording-time stop mode via the deck controller 9, or , switches the contact of the selector circuit 4 to the encoder circuit 3 side. .

That is, when the trigger switch +3 is in the on state in step 6, the microphone 1 is
The audio information supplied to the deck unit 10 via the camera 4 or the like is recorded on the recording medium, and the time during which the trigger switch 13 is on is the set time for recording still image video information set in the timer 12. When the trigger switch 13 is turned off, recording of audio information to the recording medium is stopped, and from then on, only recording of still image video information is performed until the count value of the timer 12 exceeds the set time. When the set time is reached, the deck unit 10 enters the recording stop mode or the recording-time stop mode. Also, the contact of the selector circuit 4 should be switched to the encoder circuit 3 side.

On the other hand, if the time during which the operator continues operating the trigger switch 13 and the trigger switch 13 is in the on state exceeds the set time for recording still image video information, the trigger switch 13 remains on until the operator finishes operating the trigger switch 13. Recording of still image video information and audio information on the recording medium is performed until the trigger switch 13 is turned off, and recording of still image video information and audio information is stopped when the trigger switch 13 is turned off. The deck unit 10 enters a recording stop mode or a recording-time stop mode. Also, at this time, the contact of the selector circuit 4 is switched to the encoder circuit 3 side.

As described above, according to the video recording bag layer of this embodiment, even when recording still image video information, recording is performed simultaneously, even if the narration is longer than the still image recording time set in the video recording device. The operator can record all scheduled narrations on the recording medium simply by operating the trigger switch. Therefore, there is no need to shorten the narration time or change the still image recording setting time, and the audio information recording time during still image recording can be varied according to the operator's intention. Further, since the trigger switch 13 is the only operation part added to perform the above operations, the operation does not become complicated.

Although a CCD was used as the image sensor in the two embodiments, the present invention is not limited to this, and it is of course possible to use other image sensors that utilize the photoelectric effect.

[Effects of the Invention] As detailed above, according to the present invention, the recording of audio information on the recording medium during the period when still image video information is recorded on the recording medium is adjusted by the length of the operation time of the trigger switch. Moreover, since the only component added as an operating section is the trigger switch, the audio information recording time during still image video information recording can be made variable according to the operator's intention.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the video photographing apparatus of the present invention, and FIG. 2 is a flow chart showing the operation of the video photographing apparatus of the present invention. l... CCD, 4... Selector circuit, 7... Digital memory, 10... Deck section, 11 - Microcomputer, 13 Trigger switch, 14 Microphone, 15...
・Switcher

Claims (2)

[Claims] (1) A video signal generation circuit that converts a photographed image into a video signal; and a control signal that is supplied to store information as a still image from the video information sent out by the video signal generation circuit, and store information according to the control signal. a storage section for sending still image information; a recording means for recording video information and electrically converted audio information on a recording medium according to a control signal; and controlling the sending of the audio signal to the recording means according to the control signal. a switcher circuit; a switch for instructing the recording of a still image to the recording means; and controlling the recording time of video information of the still image to a recording medium provided in the recording means, depending on the length of operation time of the switch; A video photographing apparatus comprising: a control section that sends a control signal for controlling a recording time of a signal onto a recording medium to the storage section, switcher, and recording means. (2) The control unit includes a timer for setting a recording period on the recording medium, and when the operation time of the switch is shorter than the recording period, at least the video information is recorded on the recording medium according to the recording period. video recording equipment.