JPH05236412A - Video signal recorder - Google Patents

Abstract

PURPOSE:To eliminate useless photographing and to reduce the consumption of a recording medium. CONSTITUTION:A camera part 10 executes a prescribed signal processing to video signals obtained by photographing a subject. A video RAM 21 of a still picture video signal processing part 20 stores video signals from the camera part 10. A real-time signal processing circuit 22 instantaneously reads the stored video signals. A still picture signal processing circuit 23 executes a signal processing for recording the stored video signals onto a magnetic tape. A view finder 60 displays real-time still picture video signals from the real-time signal processing circuit 22 corresponding to the operation of a photographer at a switching control part 50. This display of still picture video is executed just after photographing, and the photographer can confirm shot still pictures at real time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video signal recording apparatus for recording a still image as a digital video signal in a so-called PCM audio area of a magnetic tape used in, for example, a so-called 8 mm video tape recorder.

[0002]

2. Description of the Related Art As an apparatus for recording a video signal on a recording medium, for example, a magnetic recording medium, for example, a still image video signal,
That is, a so-called electronic still camera that records a video signal for one field or one frame on a so-called still video floppy, a so-called camera-integrated 8 mm video tape recorder that records a video signal of a moving image on a magnetic tape (hereinafter referred to as a camera-integrated 8 mm VTR). ) Etc. are known.

For example, in a camera-integrated 8 mm VTR, a magnetic tape is wound around a so-called rotary head drum at an angle of 211 degrees, and a pair of heads (hereinafter referred to as rotary heads) 180 degrees apart helically scan the magnetic tape. Thus, as shown in FIG.
An oblique track 111 is formed above. Then, in the video area 112 corresponding to 180 degrees of the rotary head drum of each track 111, the luminance signal is FM-modulated, the carrier color signal is converted into a low frequency, the audio signal is FM-modulated, and the tracking servo is used. A tracking signal, for example, a pilot signal for so-called ATF (Automatic Track Finding) control is frequency-multiplexed and recorded. In the PCM audio area 113 corresponding to about 30 degrees of the remaining rotary head drums of each track 111, a non-linear quantized digital audio signal (hereinafter referred to as PCM audio signal) is used for error correction. After the cross interleave code processing is performed, a synchronizing signal, parity, ID, etc. are added and recorded. Also, magnetic tape 1
Cue tracks 114 and audio tracks 115 are formed on both sides of 10 by scanning with fixed heads. The cue track 114 records, for example, a cue signal used for an address of a recorded content, a cue, etc., and the audio track 115 records an audio signal for after recording, for example. ..

Further, for example, as disclosed in Japanese Patent Laid-Open No. 58-164383, for displaying a title, cast, explanation, etc. on the moving image recorded in the video area 112 (superimpose). In the PCM audio area 113, a still image such as character information is captured.
A technique for recording (post-recording) is known.

[0005]

By the way, in a conventional image pickup apparatus for taking a still image, that is, a so-called still camera, the taken image cannot be seen immediately on the spot.
For example, in the case of a still camera using a film as a recording medium, it is necessary to wait for the development of the film on which a captured image is recorded, and in the case of a so-called electronic still camera using a still video floppy as a recording medium, You have to play that still video floppy. Further, even when a still image is recorded in the PCM audio area of the magnetic tape as in the camera-integrated 8 mm video tape recorder, the photographed image cannot be viewed until the magnetic tape is reproduced.

The fact that the photographer cannot see the image photographed immediately after photographing means that the photographer cannot immediately obtain information for determining whether or not the photographer can photograph the image as he or she imagined. Therefore, in anticipation of the case where the image as intended by the user cannot be obtained, the shutter is repeatedly pressed for the same subject, resulting in so-called random shooting. As a result, useless shooting increases and the amount of recording medium consumed increases.

Therefore, the present invention has been made in view of such a situation, and an object thereof is to provide a video signal recording apparatus capable of confirming a photographed still image through a viewfinder immediately after photographing.

[0008]

A video signal recording apparatus according to the present invention records a moving image in a first recording area on a magnetic tape divided into a first recording area and a second recording area. A video signal recording device for recording a still image in the second recording area, and an image memory for storing the still image,
A still image having a still image stored in the image memory and a display unit for displaying a moving image recorded in the first area as necessary, and a still image input to the image memory at a recording start operation of the still image. The image is displayed on the display unit and the second image is displayed.
In order to solve the above-mentioned problem, the data is recorded in the area.

Here, the fact that the display unit displays the still image stored in the image memory and the moving image recorded in the first area as necessary is defined by a user operation.
This means switching between still images and moving images, or displaying both in association with each other.

[0010]

With the video signal recording apparatus according to the present invention, when a still image recording start operation is performed, the still image stored in the image memory is displayed on the display unit and recorded in the second recording area on the magnetic tape. The person can check the still image immediately after shooting.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment of the video signal recording apparatus according to the present invention
Embodiments will be described with reference to the drawings. The first embodiment is one in which the present invention is applied to a so-called camera-integrated 8 mm VTR (hereinafter simply referred to as VTR), and FIG. 1 is a block circuit diagram showing a circuit configuration of this VTR.

As shown in FIG. 1, this VTR converts a picked-up image signal into a digital signal and, at the same time, carries out signal processing such as so-called knee and gamma (γ) correction.
0 and a video signal for one frame or one field from the camera unit 10 are stored, and the stored video signal is instantaneously read (hereinafter, this read video signal is referred to as a real-time still image video signal). A still image video signal processing unit 20 for performing signal processing such as data compression processing on the stored video signal for one frame or one field, and converting the video signal from the camera unit 10 into a luminance component and a color difference component. After that, the video signal converted into the luminance component and the color difference component and the real-time still image video signal from the still image video signal processing unit 20 are switched, and the switched one video signal (the luminance component and the color difference component Video signal that converts the converted video signal or real-time still image video signal) into an analog signal by performing signal processing for recording. The processing unit 30, the digital image signal from the still image signal processing unit 20 and the analog image signal from the moving image signal processing unit 30 are time-division-multiplexed into the so-called video area and PCM audio area of the magnetic tape 1. A head unit 40 for recording respectively, a switching control unit 50 for controlling the switching function of the moving image / video signal processing unit 30, and a moving image / video signal switched and supplied under the control of the switching control unit 50, or a real-time still image. A viewfinder 60, which is a display unit for displaying a video signal, and a control unit 70, which controls the still image / video signal processing unit 20, the video / video signal processing unit 30, and the like.

The VTR converts a video signal obtained by photographing a subject with the camera unit 10 into a luminance component and a color difference component, further performs signal processing such as knee and γ correction, and then performs signal processing. The generated video signal is recorded in the video area of the magnetic tape 1 as a video signal of a moving image. Also, this V
The TR stores the video signal obtained by the camera unit 10 as a still image video signal as described above, instantaneously reads the stored still image video signal, and displays it on the viewfinder as a real-time still image video signal. The stored video signal of one frame or one field is recorded in the PCM audio area of the magnetic tape 1 as a video signal of a still image.

Specifically, as shown in FIG. 1, the camera unit 10 includes a lens 11, a CCD image sensor (hereinafter referred to as CCD) 12, and a video signal from the CCD 12, for example, contour compensation, a pedestal clamp, and the like. The camera signal processing circuit 13 performs various kinds of signal processing such as white clip, knee, γ correction, and black clip.

Further, the still image video signal processing section 20 is
As shown in FIG. 1, the video signal from the camera unit 10 is read from the video RAM 21, which is an image memory for storing one field or one frame at a predetermined interval under the control of the control unit 70. The issued video signal is instantly read out, and the moving picture video signal processing unit 30 is read.
Real-time signal processing circuit 2 supplied to the switching means
2, and the video signal read from the video RAM 21 is subjected to data compression processing such as so-called adaptive dynamic range coding (ADRC) or so-called sub sampling (Sub Sampling) as necessary. (Hereinafter, this compressed video signal is referred to as compressed data), and conversely, from a still image video signal processing circuit 23 for reproducing the video signal by subjecting the compressed data to data expansion processing, and from the still image video signal processing circuit 23. To the compressed data of the synchronization signal, error correction code, identification code (hereinafter I
(Hereinafter referred to as D) (hereinafter, the compressed data to which the synchronization signal, the error correction code, and the ID are added is referred to as still image data), and conversely, the PCM processing circuit 24 for performing error correction processing on the still image data. Composed of.

As shown in FIG. 1, the moving picture image signal processing section 30 includes a camera system image signal processing circuit 31 for converting the image signal from the camera section 10 into, for example, a luminance component and a color difference component, and A video signal from the video signal processing circuit 31 and a real-time still image video signal from the still image video signal processing unit 20 are supplied, and a switching unit 32 for switching and selecting one of them, and an image from the switching unit 32 The video signal processing circuit 33 of the recording system supplies the video data to the head section 40 by performing signal processing suitable for recording on the signal to form the video data. Here, the switching unit 32 has a movable contact piece 32a and fixed contacts 32b and 32c as shown in FIG.
The video signal processing circuit 31 has a fixed contact 32c in FIG.
Is connected to the real-time signal processing circuit 22, and the movable contact piece 32a is connected to the video signal processing circuit 33.

Further, as shown in FIG. 1, the head unit 40 time-division multiplexes the still image data from the still image video signal processing unit 20 and the analog video signal from the moving image video signal processing unit 30 into the MUX 41. And an amplifier 42 for amplifying the time-division multiplexed recording signal from the MUX 41, and the magnetic tape 1 based on the exciting current from the amplifier 42.
And a rotary head 43 for recording signals.

Further, as shown in FIG. 1, the switching control section 50 is a display for adjusting the time during which the still image is displayed inside the viewfinder 60 after the photographer has taken a still image using this VTR. A time adjustment unit 51, an on / off switch 52 for setting whether or not to display the still image in the viewfinder 60, and a mode set by the display time adjustment unit 51 and the on / off switch 52. And a microcomputer 53 that controls the switching unit 32 based on the above.

Further, as shown in FIG. 1, the control section 70 operates in this VTR, for example, a moving image shooting mode for recording a moving image signal, a still image shooting mode for recording a still image signal. And the like, and a PCM processing circuit 24 that sends a control signal from the function control circuit 71 corresponding to the set mode to the PCM processing circuit 24.
A system controller 72 that supplies the video signal processing circuit 33 to control the above-mentioned units, and the system controller 7
The memory controller 73 controls the address of the video RAM 21 under the control of 2.

First, the camera section 10 performs various kinds of signal processing on a video signal obtained by photographing a subject, for example, contour compensation for compensating for insufficiency of wide-range components of spatial frequency of an optical system, an image pickup device, and the like. Signal processing such as so-called pedestal clamp is performed to prevent the so-called pedestal level, which is the reference of the black level, from changing, and the digital video signal subjected to these signal processing is processed into the still image video signal processing unit 20 or the moving image. The signal is supplied to the signal processing unit 30.

The still image video signal processing section 20 stores the video signal for one frame or one field from the camera signal processing circuit 13, instantaneously reads out the stored video signal, and supplies it to the switching section 32. In addition, for example, so-called adaptive dynamic range coding (ADRC) is added to the stored video signal.
e Coding) and so-called sub-sampling
Data compression processing such as the above is performed as necessary, and a synchronization signal, an error correction code, and an ID are added to the compressed data to form still image data.

The moving image / video signal processing unit 20 converts the video signal from the camera signal processing circuit 13 into, for example, a luminance component and a color difference component, and the converted video signal and the real-time still image from the real-time signal processing circuit 22. The video signal is switched by the switching unit 32 which is a switching unit. If the video signal switched by the switching unit 32 is a video signal converted into a luminance component and a color difference component from the video signal processing circuit 31, the luminance signal of the video signal is FM-modulated by a predetermined carrier wave, After the carrier color signal is converted to a low frequency, frequency multiplexing is performed to form moving image data, and this moving image data is supplied to the head section 40 and is also converted into, for example, an analog video signal conforming to the NTSC system. On the other hand, if the video signal switched by the switching unit 32 is a real-time still image video signal,
The real-time still image video signal is subjected to predetermined signal processing and supplied to the viewfinder 60. Here, the switching section 32 supplies the video signal processed by the video signal processing circuit 31 to the video signal processing circuit 33 by bringing the movable contact piece 32a into contact with the fixed contact 32b, and the movable contact piece 32a is moved. By contacting the fixed contact 32c, the real-time still image video signal that has been instantaneously signal-processed by the real-time signal processing circuit 22 is transferred to the video signal processing circuit 3 described above.
Supply to 3.

The head section 40 includes an analog video signal from the moving picture video signal processing section 30 and the PCM processing circuit 24.
The digital video signal (still image data) from is recorded in the video area and the PCM audio area of the magnetic tape 1 by time division multiplexing.

The switching control section 50 determines whether or not to display the still image inside the viewfinder 60 after the photographer has photographed the still image.
The microcomputer 53 detects how long the display time should be, and controls the switching of the switching unit 32.

The viewfinder 60 displays a still image desired by the photographer for a desired time by the switching unit 32 which is switched by the control of the switching control unit 50.

The control unit 70 supplies a control signal according to the operation mode of the VTR to the PCM processing circuit 24 and the video signal processing circuit 33 to cause signal processing according to the operation mode. It also controls writing and reading of the video signal according to the operation mode.

The magnetic tape 1 has a tape format similar to that of the magnetic tape 110 shown in FIG. 6, for example. That is, the track obliquely formed on the magnetic tape 1 by the helical scanning of the rotary head 43 is divided into a video area and a PCM audio area, and a moving image is recorded as an analog video signal in the video area. .. Further, the same still image as that displayed on the viewfinder 60 is recorded in the PCM audio area.

Next, in the VTR having the above configuration, a still image shooting mode for recording a video signal of a still image will be described. For example, when the user sets the still image shooting mode in the function control circuit 71, the system controller 72 detects a control signal corresponding to the setting and controls each unit to operate in the still image shooting mode. To do. When the shutter is operated, the shutter signal sent via the terminal 74 is detected every time the shutter is operated, and one frame or one field of the video signal obtained by photographing the subject with the camera unit 10 is detected. It is recorded in the PCM audio area of the magnetic tape 1 as a video signal of a still image.

Specifically, the camera signal processing circuit 13 is
The video signal from the CCD 12 is subjected to signal processing such as contour compensation, pedestal clamp, white clip, knee, γ correction, and black clip, and the video signal subjected to the signal processing is applied to the still image signal processing unit 20 or the above-mentioned moving image. The signal is supplied to the signal processing unit 30.

The video RAM 21 stores one frame or one field of the video signal from the camera signal processing circuit 13 under the control of the memory controller 73 of the control unit 70. Therefore, the capacity of the video RAM 21 requires at least one field.

The real-time signal processing circuit 22 instantaneously reads out the video signal written in the video RAM 21 under the control of the memory controller 73. Further, the still image video signal processing circuit 23 reads out the video signal written in the video RAM 21 under the control of the memory controller 73, performs data compression such as ADRC as necessary, and outputs compressed data. It is formed and this compressed data is supplied to the PCM processing circuit 24.

The PCM processing circuit 24 applies a sync signal to the compressed data supplied from the still image / video signal processing circuit 23,
An error correction code or the like is added to generate still image data, and this still image data is supplied to the rotary head 43 via the MUX 41 and the amplifier 42.

At this time, the system controller 72
A running system (not shown) is controlled so that the magnetic tape 1 starts running in synchronization with the supply of the still image data to the rotary head 43. Then, the system controller 72 performs control to stop the running of the magnetic tape 1 several seconds after the recording is started. As a result, a still image is recorded as a digital video signal on tens to hundreds of tracks (depending on the data compression rate) of the PCM audio area of the magnetic tape 1.

Next, in the VTR of one embodiment to which the video signal recording apparatus of the present invention as described above is applied, the photographer takes a still image and immediately after that, the still image is confirmed by the viewfinder. A series of operations will be described.

When the photographer presses a shutter (not shown) to take a still image, the image passes through the lens 11,
It is taken into the CCD 12. The signal of the CCD 12 is subjected to predetermined signal processing by the camera signal processing circuit 13, and the still image video signal processing unit 20 and the moving image video signal processing unit 3 are processed.
It is branched into 0 and supplied. In the still image / video signal processing unit 20, first, the digital video signal of the captured image is written in the video RAM 21. This video RAM
One of the digital video signals written in 21 is branched into the still image signal processing circuit 23, and the other is branched into the real-time signal processing circuit 22 to be read out. One of the digital video signals read out to the still image signal processing circuit 23 is subjected to predetermined signal processing, and is passed through the PCM processing circuit 24, through the MUX 41 and the amplifier 42, to the rotary head in the PCM audio area of the magnetic tape 1. Recorded from 43. The other real-time signal processing circuit 22 instantaneously reads out the digital video signal and supplies the digital video signal to the fixed contact 32c of the switching unit 32. The video signal from the video signal processing circuit 31 is supplied to the other fixed contact 32b of the switching unit 32.
The signal selection in the switching unit 32 is performed by keeping the movable contact piece 32a in contact with the fixed contact 32c side for a certain period of time immediately after photographing, and thereafter, until the next shutter is released, the movable contact piece 32a.
By contacting the fixed contact 32b side with the fixed contact 32b, a still image taken can be displayed on the viewfinder 60 for a certain period of time through the video signal processing circuit 33.

That is, the video signal processing circuit 33 receives one of the video signal from the video signal processing circuit 31 of the camera system and the real-time still image video signal from the real-time signal processing circuit 22 via the switching unit 32. ,
For example, it is converted into a video signal conforming to the NTSC system and supplied to the viewfinder 60. Here, when the real-time still image video signal from the real-time signal processing circuit 22 is selected by the switching unit 32 under the control of the switching control unit 50, the still image immediately after the still image shooting is displayed on the viewfinder 60. Will be. As a result, the photographer can check the still image immediately after shooting in the viewfinder.

Next, the control operation of the switching control unit 50 for controlling the switching unit 32 will be described with reference to FIG. 2 shows the switching unit 32 and the switching control unit 50.
2 is a diagram showing the configuration of the above, and the configuration of each part is similar to that of FIG.

The time for displaying a still image after shooting in the viewfinder 60 and the ON / OFF of the function itself can be switched by the adjusting unit and the switch so that the user can freely set the time. Display time adjusting unit 51 and ON / OFF, respectively
The switch 52 is turned off.

Specifically, the display time adjusting section 51 is
The display time may be adjusted by the volume 51a, or a predetermined display time may be selected, for example, 0.5 seconds, 1 second, 2 seconds. Further, the on / off switch 52 may be a slide type switch composed of a switch 52a and terminals 52b, 52c and 52d as shown in FIG. Each mode set by the display time adjustment unit 51 and the ON / OFF switch 52 is detected by the microcomputer 53. Then, the microcomputer 53 controls the switching unit 32 to control the video signal processing circuit 31 of the camera system.
And the real-time still image video signal from the real-time signal processing circuit 32.
It is switched according to the setting of 0 and displayed on the viewfinder 60. Further, the display time adjusting unit 51 and the on / off switching switch 52 can be replaced by an OSD (On Screen Display).

Therefore, in the VTR to which the first embodiment of the video signal recording apparatus according to the present invention is applied, the photographed still image can be confirmed by the viewfinder 70 immediately after the photographing, as desired by the photographer. ..

Next, a second embodiment of the video signal recording apparatus according to the present invention will be described with reference to the drawings. This second embodiment also applies the present invention to a VTR, and when a still image immediately after shooting is displayed on the viewfinder, for example, a monitor receiver or the like via a line out output. Function to switch between displaying the same still image as the viewfinder or the camera input image at that time regardless of the still image displayed in the viewfinder, and displaying a real-time still image in the viewfinder for a certain period of time. After displaying, the function to switch images with a cross fade when returning to the camera input image, or after displaying a real-time still image for a certain period in the viewfinder,
It has a function of outputting the camera input image while reducing the still image when returning to the camera input image.

FIG. 3 is a block circuit diagram showing the structure of a VTR to which the video signal recording apparatus of the second embodiment is applied. Here, the same reference numerals are used for the parts having the same configurations as those of the first embodiment described above, and detailed description thereof will be omitted.

As shown in FIG. 3, this VTR has a camera section 10, a still image / video signal processing section 20, and a head section 40.
A viewfinder 60, a control unit 70, a moving image signal processing unit 80, and a switching control unit 90. Among them, the moving image / video signal processing unit 80 and the switching control unit 90 are different in configuration from the first embodiment shown in FIG. The structure of the VTR will be described below centering on the moving image / video signal processing unit 80 and the switching control unit 90.

The moving picture / video signal processing section 80 of this VTR is
As shown in FIG. 3, a video signal processing circuit 81 of a camera system for converting a video signal from the camera unit 10 into, for example, a luminance component and a color difference component, a gain of a video signal from the video signal processing circuit 81, and a real time signal. The gain distribution of the real-time still image video signal from the processing unit 22 is changed, and the volume 82 for cross-fading the still image and the moving image, and the signal processing suitable for recording the moving image video signal supplied from the video signal processing circuit 81 are performed. A video signal processing circuit 83 of a recording system for applying the same to form moving image data, a fade image cross-faded by the volume 82, and the video signal processing circuit 8
3 and a change-over switch 84 for changing over the moving image video signal from S.

Further, as shown in FIG. 3, the switching control section 90 causes the output section 85 to output a still image similar to the still image displayed on the viewfinder 60 as a line-out, and at the same time, causes the head section 40 to operate. Via the magnetic tape 1 in the analog area, or regardless of the still image displayed on the viewfinder 60, the current camera input image is output as a line out from the output terminal 85 and at the same time via the head section 40. Magnetic tape 1
A viewfinder interlocking / non-interlocking switch unit 91 for the user to select whether or not to record in the analog area, and a wipe mode selecting unit 92 for the user to select the wipe mode,
The viewfinder interlocking / non-interlocking switch 91 and the microcomputer 93 for detecting the mode selected by the user in the wipe mode selecting section 92.

The microcomputer section 93 detects the mode selected by the viewfinder interlocking / non-interlocking switch 91 and the wipe mode selecting section 92, and based on that mode, the volume 8 of the moving picture / video signal processing section 80 is detected.
2. The operation of the changeover switch unit 84 and the real-time signal processing unit 22 of the still image video signal processing unit 20 is controlled.

Here, the viewfinder interlock / non-interlock switch section 91 and the wipe mode selection switch 92.
FIG. 4 shows a specific configuration example of the above. In FIG. 4, the viewfinder interlocking / non-interlocking switch section 91 includes, for example, a movable section 91a, an ON terminal 91b, and a signal supply terminal 91c.
And an off terminal 91d. The wipe mode selection switch 92 includes, for example, a movable portion 92a, an off terminal 92b, a signal supply terminal 92c, a crossfade terminal 92d, and a reduction terminal 92e. The user can select a desired mode by, for example, sliding the movable portions 91a and 92a. Then, the microcomputer 93 detects the information from the respective modes, and based on the information, the volume 82,
Changeover switch 84 and real-time signal processing circuit 2
2 controls each operation.

Next, the function of this VTR having the above-mentioned structure will be described below. First, when displaying a still image immediately after shooting in the viewfinder,
ne Out) A function that can be switched via the output, for example, to display the same still image as the viewfinder on the monitor receiver, or to display the camera input image at that time regardless of the still image displayed on the viewfinder. Will be described.

In FIGS. 3 and 4, the viewfinder 6
The view-out interlocking / non-interlocking switch unit 91 controls the line-out output derived from the output terminal 85 and the recording of the moving image signal to the head unit 40 when a still image is displayed at 0. That is, when linked, a still image that is the same as the still image displayed on the viewfinder 60 is output from the output terminal 85, and at the same time, a moving image signal is recorded in the analog area of the magnetic tape 1, and when not linked, it is irrelevant to still image shooting. Output and record the camera input image to. Specifically, the microcomputer 93 detects the state selected by the viewfinder interlocking / non-interlocking switch section 91 and controls the changeover switch 84. That is, the changeover switch 84 is switched to the upper side when interlocking and to the lower side when not interlocking.

Next, the function of switching the image by cross-fade when returning to the camera input image after displaying a real-time still image on the viewfinder 60 for a certain period of time will be described.

In FIGS. 3 and 4, when the user selects crossfade by the wipe mode selection switch 92, the microcomputer 93 detects this information and controls the volume 82. The volume 82 functions to vary the gain of still images and the gain distribution of moving images. For example, by changing the volume midpoint 82a from the lower portion 82b to the upper portion 82c in a linear manner, it is possible to crossfade the still image and the moving image.

Next, a function of displaying a real-time still image on the viewfinder 60 for a certain period of time and then outputting the camera input image while reducing the still image when returning to the camera input image will be described.

In FIG. 3 and FIG. 4, when the wipe selection section 92 selects reduction, the information is stored in the microcomputer 93.
Is detected and controls the real-time signal processing circuit 22 and the volume 82. Midpoint 8 of the volume 82
The position of 2a is maintained so that the gain distributions of the moving image and the still image are uniform. The real-time signal processing circuit 22 receives a reduction command from the microcomputer 93 and performs a linear reduction operation, whereby the still image 101a is gradually reduced in the screen 100 as shown in FIG. After a second, the still image 101b is formed, and the moving image 102a appears in the background of the still image 101b. Further, for example, 1 second later, the still image 101b is further reduced to a still image 101c, and the moving image 102b is displayed in the background. Like

Therefore, in the VTR to which the second embodiment of the video signal recording apparatus according to the present invention is applied, the photographed still image can be confirmed in the viewfinder immediately after the photographing and is displayed in the viewfinder. The still image can be monitored via a line-out output terminal by, for example, a monitor receiver, and simultaneously recorded in the video area of the magnetic tape. Further, even when a still image is taken, the camera input (moving image) can be output from the line-out output terminal regardless of the still image and can be recorded in the video area of the magnetic tape. Furthermore, after displaying a still image on the viewfinder for a certain period of time, when returning to the camera input, the still image and the moving image (camera input) can be connected with a crossfade, or the moving image can be output while reducing the still image.

The video signal recording apparatus according to the present invention is
The present invention is not limited to the above embodiment, and can be applied to a video signal recording device having a still image shooting function other than the 8 mm integrated video tape recorder. Further, in terms of configuration, the switching control unit may not be provided independently, and for example, the system controller of the control unit may be caused to perform the control operation of the switching control unit.

[0056]

The video signal recording apparatus according to the present invention stores a still image in the image memory, and switches the still image stored in the image memory to the moving image on the display unit as necessary or displays the still image in association with the moving image. Along with recording in the second recording area formed on the magnetic tape, the photographer can confirm the still image immediately after photographing. Therefore, for example, when the photographer shoots an image different from his or her own image, it can be known on the spot, and the desired image can be recorded again by shooting again. As a result, a desired image can be recorded without performing so-called irregular shooting, so that useless shooting is unnecessary and the consumption of the recording medium can be reduced. In addition, usability as a still image capturing device is improved.

[Brief description of drawings]

FIG. 1 is a block circuit diagram of a so-called 8 mm integrated video tape recorder to which a first embodiment of a video signal recording device according to the present invention is applied.

FIG. 2 is a block circuit diagram showing a main part of a so-called 8 mm integrated video tape recorder to which the first embodiment of the video signal recording device according to the present invention is applied.

FIG. 3 is a block circuit diagram of a so-called 8 mm integrated video tape recorder to which the second embodiment of the video signal recording device according to the present invention is applied.

FIG. 4 is a block circuit diagram showing a main part of a so-called 8 mm integrated video tape recorder to which the second embodiment of the video signal recording device according to the present invention is applied.

FIG. 5 is a diagram for explaining a functional operation of a so-called 8 mm integrated video tape recorder to which the second embodiment of the video signal recording device according to the present invention is applied.

FIG. 6 is a diagram showing a tape format of a magnetic tape used in an 8 mm video tape recorder.

[Explanation of symbols]

 10-Camera unit 20-Still image signal processing unit 22-Real-time signal processing circuit 23-Still image signal processing circuit 24-PCM processing circuit Video signal processing unit 31 ... Video signal processing circuit (camera system) 33 ... Video signal processing circuit (recording system) 40. Head unit 50, 90.・ Switching control unit 60 ・ ・ ・ Viewfinder 70 ・ ・ ・ Control unit

Claims (1)

[Claims] 1. A video for recording a moving image in the first recording area and a still image in the second recording area on a magnetic tape divided into a first recording area and a second recording area. In the signal recording device, an image memory that stores the still image, a display unit that displays the still image stored in the image memory and the moving image recorded in the first area as necessary, A video signal recording apparatus, wherein a still image input to the image memory at the time of a recording start operation of a still image is displayed on the display unit and recorded in the second area.