JPH03297281A - Movie video camera with still mode - Google Patents

Abstract

PURPOSE:To reproduce a still picture by selecting a changeover means, reading a still video signal from a recording means and giving the signal to a recording means. CONSTITUTION:When a video recording switch 31 is depressed, a video image picked up by a CCD 13 is given to an encoder 20, the video signal and an audio signal are recorded on a video tape by a recording section 21 and displayed on a view finder 23. When a still mode setting switch 32 is depressed in the video recording state in the movie mode, a still video signal is recorded together with an audio signal continuously for one frame period while the still mode is being set and still mode recording is displayed on the upper part of the screen of the view finder 23 and both a still picture and a moving picture are displayed to part of the screen of the view finder 23.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to still mode video cameras.

Prior Art and Its Problems Movie video cameras record video and audio simultaneously. Therefore, even when sound is very important but video is not so important as a moving image, it was necessary to hold the camera and continue shooting.

SUMMARY OF THE INVENTION OBJECT OF THE INVENTION The object of the present invention is to provide a still mode video camera that can record still images instead of moving images, and can continue recording sound. shall be.

Arrangement of the Invention 1 Operation and Effect The still mode video camera according to the present invention has an imaging means for capturing an image of a subject and outputting a movie video signal thereof, and outputs a signal representing collected sound. a sound collecting means, a storage means for temporarily storing one screen worth of movie/video signals output from the imaging means, a movie/video signal output from the imaging means and one screen worth of signals read from the storage means; a switching means for inputting the still/video signal of the above and outputting either one; a still/mode setting means for setting a still red mode; a video signal output from the switching means; and a sound collection output from the sound collection means. The recording means for recording the signal on the recording medium and the switching means are set to select and output the movie/video signal at all times, and the still/video signal is set to be output.
When a still mode is set by the mode setting means, the switching means is switched, and the still video signal of the same screen is continuously read out from the storage means, and the still video signal is controlled to be provided to the recording means. It is characterized by comprising a control means.

Usually, a movie/video signal representing a captured moving image is recorded on a recording medium such as a magnetic tape along with a signal representing collected sound. When the still mode is set by the still mode setting means, a still video signal representing the still image stored in the storage means at the time the still mode was set is given to the recording means together with the sound collection signal. recorded. Still video signals representing the same still image are repeatedly read out from the storage means and continuously provided to the recording means until the still mode is canceled.

Therefore, according to the present invention, if the subject image does not have much meaning as a moving image and a still image is preferable, the still image captured at the time the still mode is set is recorded. Moreover, the sound is recorded continuously regardless of the still mode setting. After setting the still mode, there is no need to hold the camera and continue shooting.

Since the still images photographed in this manner are continuously recorded one frame at a time in the same way as moving images, it is possible to play back the still images with audio using a conventional movie/video player.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the electrical configuration of a still mode video camera.

The entire operation of the movie video camera is supervised by a system control circuit 10. The movie video camera can record movie video signals and sound signals in the same way as a normal video camera (movie mode), and is set by pressing the recording switch 31. This movieina video camera is also available. A still video signal can be recorded together with audio (still mode), and the setting is performed by pressing the still image setting switch 32. These switches 31, 32
The press signal is input to the system control circuit 1o.

The subject image is converted into an electrical signal by a CCD (solid-state electronic image sensor) 13. CCD13 is a CC that operates based on the synchronization signal output from the synchronization signal generation circuit II.
It is driven by the D drive circuit 12. The synchronization signal output from the synchronization signal generation circuit 11 is also given to the frame memory control circuit 16.

The output signal of the CCD 13 is given to an imaging signal processing circuit 14. The imaging signal processing circuit 14 generates a luminance signal and a color signal based on the input CCD output signal.

It performs other signal processing. The video signal output from the imaging signal processing circuit 14 is converted into an analog/digital (A/D) converter circuit 15. The signal is applied to the small screen synthesis circuit 22 and the recorded image switching circuit 19, respectively.

The video signal input to the A/D conversion circuit 15 is converted into a digital signal and then stored one frame at a time in the frame memory 17 via the frame memory control circuit 16. Data representing a still image stored in the frame memory 17 is read out when the still image setting switch 32 is pressed, and is returned to an analog signal by being supplied to a digital/analog (D/A) conversion circuit 18. . This still/video signal is transmitted to the recording image switching circuit 19.
and is applied to the small screen synthesis circuit 22. The video signal may be stored in the frame memory 17 by constantly updating one frame at a time, or the video signal for one frame input at the moment the still image setting switch 32 is pressed may be stored in the frame memory 17. It may also be stored. In any case, a video signal for one frame is stored in the memory 17, and a still video for one frame (one frame) representing a still image taken at the time the still image setting switch 32 is pressed. The signal is read out from the memory 17 continuously in one frame period. This operation (still mode operation) may be configured to continue while the still image setting switch 32 is pressed, or may be configured to continue until the switch 32 is pressed once and then pressed again. Good too.

The recorded image switching circuit 19 switches and outputs the video signal provided from the imaging signal processing circuit 14 and the video signal read from the frame memory 17 provided via the D/A conversion circuit 18, and provides the signal to the encoder 20. The recorded image switching circuit 19 uses the D/A conversion circuit 18 only when the still mode is set by the still image setting switch 32.
The output video signal of the imaging signal processing circuit 14 is selected and outputted, and at other times, the output video signal of the imaging signal processing circuit 14 is outputted.

On the other hand, sounds from a specific direction or surrounding sounds can be detected by the microphone 24.
The sound is collected by the audio signal processing circuit 25, subjected to given processing, and then input to the encoder 20.

The encoder 20 performs signal conversion and processing for recording, such as FM modulation processing of the input video signal and high frequency bias application processing of the sound signal, and provides the signal to the recording section 21 . The recording unit 21 includes a magnetic recording head, a magnetic tape running drive mechanism, etc., and records the video signal and sound signal input from the encoder 20 on a magnetic tape. The recording unit 21 may of course be one that records the video signal and sound signal on another recording medium such as an optical disc.

The movie video camera includes a viewfinder 23 for viewing the subject. Viewfinder 2
3 includes a display device such as a liquid crystal display device, and displays a screen based on a video signal given from the small screen synthesis circuit 22. When the still mode is set by the still image setting switch 32, the small screen synthesis circuit 22 displays a moving image 23A captured by the CCD 13 on the viewfinder 23 as shown in FIG. A video signal for displaying the still image 23B stored in the frame memory 17 is created and given to the viewfinder 23. It also generates a signal for displaying a display 23C of "still recording mode" on the viewfinder 23. When the still mode 32 is not set, the small screen synthesis circuit 22 sends only the output video signal of the imaging signal processing circuit 14 to the viewfinder 23 so that only the moving image captured by the CCD 13 can be displayed on the viewfinder 23. give.

FIG. 2 shows a rear view of the movie video camera.

A grip section 33 provided on the main body 30 of the movie video camera is provided with a recording switch 31 and a still mode setting switch 32. Further, a vinyl finder 23 is provided at the upper right corner of the main body 30 when viewed from the back side.

When the recording switch 31 is pressed by the photographer, the CCD
A video representing the subject image captured by the image capturing signal processing circuit 13 is processed by the image capturing signal processing circuit 14 and then sent to the encoder 20 through the recording image switching circuit 19. The encoder 20 is also given a sound signal representing the sound collected by the microphone 24, and the video signal and the sound signal are sent to the recording section 2.
1 and simultaneously recorded on video tape. The video signal is also applied to the small screen synthesis circuit 22, and the captured image is displayed on the viewfinder 23.

When the still mode setting switch 32 is pressed by the photographer while recording is being performed in such a movie mode, the subject image at the time the button was pressed is temporarily stored in the frame memory 17, and then stored in the memory. 17 and is read out from the encoder 2 via the recorded image switching circuit 19.
given to 0. Furthermore, the encoder 20 continues to receive the sound signal output from the microphone 24 . As a result, the still video signal representing the subject image at the time the still mode setting switch 32 was pressed is recorded on the video tape continuously at one frame period while the still mode is set. recorded along with the signal. At this time, as shown in FIG. 3, the display section 23C at the top of the screen of the viewfinder 23 displays a message that still mode recording is being performed, and a portion of the screen of the viewfinder 23 displays the information that is being recorded. Still image 23B or CCD13
is displayed together with the captured video 23A.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the invention. FIG. 2 is a rear view of the movie/video camera with still mode, and FIG. 3 shows an example of a viewfinder screen. 10... System control circuit. 13...ccp. 1B...Frame memory control circuit. 17...Frame φ memory. 19... Recorded image switching circuit. 21... Recording department. 23...Viewfinder. 24...Microphone. 32...Still image setting switch. that's all

Claims (2)

[Claims] (1) An imaging means that captures an image of a subject and outputs a movie/video signal thereof; a sound collection means that outputs a signal representing the collected sound; and one screen worth of movie/video signals output from the imaging means. A storage means for temporarily storing a signal; a switching means for inputting a movie/video signal output from the imaging means and a still video signal for one screen read from the storage means and outputting either one; Still mode setting means for setting the mode; recording means for recording the video signal output from the switching means and the sound collection signal output from the sound collection means on a recording medium; The signal is set to be selected and output, and when the still mode setting means sets the still mode, the switching means is switched, and the still video signal of the same screen is continuously output from the storage means. A movie/video camera with a still mode, comprising: control means for reading out the still video signal to provide the still video signal to the recording means. (2) Displaying a moving image represented by a movie video signal output from the imaging means, and displaying a moving image represented by a still video signal read from the storage means when the still mode is set by the still mode setting means. The movie/video camera with still mode according to claim 1, further comprising a viewfinder for displaying a still image on a part of the screen.