JPH0454078A - Camcorder - Google Patents

Abstract

PURPOSE:To insert a video signal to a preferred part of a tape and to reproduce the signal as required at reproduction by recording a digital video signal to a digital area when a still picture is inserted to the preferred part of the tape so as to erase the already recorded video signal. CONSTITUTION:In the case of inserting a still picture being a photograph 12 onto a part of a tape, the still picture fetch mode is set by a mode selection switch 14 and a video recording switch is turned on. A video signal processing circuit 20 outputs a video signal to an A/D converter 22, in which the signal is converted into a digital video signal and outputted to a memory 24, the digital video signal by one pattern is stored therein. A controller 26 gives an index signal immediately to an ID area of a tape 10 when the video recording switch is turned on in the still picture fetch mode, after the tape is rewound by a prescribed quantity, a magnetic head 24 reads a prescribed quantity of digital video signals for each timing when a magnetic head 32 scans a PCM area of the tape 10 and records the signal onto the PCM area of the tape.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a camera-integrated VTR, and in particular to a tape in a tape format that has a digital area for recording digital data in addition to an FM area for recording FM video signals. This invention relates to a camera-integrated VTR that uses a cassette.

[Conventional technology]

In general, a movie camera can produce enjoyable images even when used normally, but the enjoyment will be even greater if photos taken with the movie camera and photos of the movie camera operator can be inserted into the movie screen.

Traditional movie cameras allow you to insert new footage into any part of the tape you record.

[Problem to be solved by the invention]

However, when a new video is inserted into a desired part of a tape using a conventional movie camera, there is a problem in that the original video disappears in the inserted part.

The present invention was developed in view of the above circumstances, and allows a new still image video signal to be inserted into a desired part of the tape without erasing the already recorded video signal.
Another object of the present invention is to provide a camera-integrated VTR that can play back the inserted still image as necessary during playback.

[Means to solve problems]

In order to achieve the above object, the present invention uses a tape cassette with a tape format that has a digital area for recording digital data in addition to an FM area for recording FM video signals, and the FM area of the tape of the tape cassette is In a camera-integrated VTR that records and plays back FM video signals and digital data in the digital area, an A/D converter converts the video signal obtained by photographing the subject into a digital video signal, and a digital video signal for one screen. a mode setting means for setting a still image import mode and a still image insertion mode; and a mode setting means for setting a still image import mode and a still image insertion mode; After storing the digital video signals for 10 minutes in the storage means, the digital video signals are stored in the digital area of multiple tracks of the prerecorded tape, and when the still image insertion mode is set during playback, the digital video signals of the multiple tracks are stored. storing one screen worth of digital video signals recorded in the area in the storage means;
The present invention is characterized by comprising a control means for reproducing a still image video signal based on one screen worth of digital video signal stored in the storage means.

[Effect]

According to the present invention, a camera-integrated VTR that uses a tape cassette in a tape format that has a digital area for recording digital data in addition to an FM area for recording FM video signals, and is capable of recording and playing back on this tape cassette. Based on this premise, when inserting a still image into a desired part of the tape, the video signal for one screen is recorded in the digital area not as an FM video signal but as a digital video signal.

Thereby, a new digital video signal can be recorded without erasing the already recorded FM video signal. Incidentally, since it is not possible to record all the digital video signals for one screen with only one track's worth of digital areas, they are recorded in the digital areas of a plurality of tracks separately.

Further, when inserting a still image during playback, one screen worth of digital video signals recorded in the digital areas of the plurality of tracks is read out and temporarily stored in the storage means, and the one screen worth of the stored Still images are played back based on digital video signals.

〔Example〕

A camera-integrated VTR according to the present invention according to the attached drawings below.
A preferred embodiment will be described in detail.

FIG. 1 and FIG. 2 are block diagrams of the main parts of the camera-integrated VTR according to the present invention during recording and playback, respectively.
A video camera using an 8 mm video cassette as the tape cassette is shown.

First, to briefly explain the tape format of the 8IT1m video tape, as shown in FIG. Between these tracks there is provided an area for recording and reproducing by means of a rotating head drum.

This area is the FM area where FM video signals and FM audio signals are recorded (180° in terms of tape wrapping angle).
and a digital (PCM) audio signal on which PCM audio signals are recorded.
CM) area (36゛ in terms of tape wrapping angle), and furthermore, at the top end of the PCM area, there is a 6.8H (
H: Horizontal scanning line) PCM post-recording margin and V-
A Pguard area is provided, and a part of it is rD(i
It is also being considered to use it as an ID area for recording dentif1cat1on) information.

Now, in FIG. 1, when inserting a still image of the photograph 12, the still image capturing mode is set by the mode selection switch 14, and the recording switch is turned on. The light incident through the photographing lens 16 forms an image on the light receiving surface of the imaging device (CCD image sensor) 18, and is converted by each sensor into an amount of signal charge corresponding to the intensity of the light. This signal charge is
The signals are sequentially read out and output to the video signal processing circuit 20.

The video signal processing circuit 20 includes a white balance circuit, a γ correction circuit, a matrix circuit, an encoder circuit, etc., and outputs the video signal to the A/D converter 22 after performing predetermined signal processing using these circuits.

The A/D converter 22 converts the input analog video signal into a digital video signal, outputs this digital video signal to the memory 24, and the memory 24 stores the digital video signal for one screen.

When the recording switch is turned on in the still image capturing mode, the controller 26 controls the I/O of the tape 10 via the recording signal processing circuit 28, the recording amplifier 30, and the magnetic head 32.
Immediately input an index signal into the D area (see FIG. 5), then rewind the tape by a certain amount, and then read a certain amount of digital data from the memory 24 at each timing when the magnetic head 32 scans the PCM area of the tape 10. The video signal is read out and sent to the PCM of the tape via the recording signal processing circuit 28, the recording amplifier 30, and the magnetic head 32.
Record the area. Note that the amount of rewinding of the tape is determined so that the index signal comes after the digital video signal for one screen has been divided into PCM areas of a plurality of tracks and recorded.

Next, a case will be described in which a tape on which one screen worth of digital video signals is recorded as described above is played back.

In FIG. 2, during reproduction, the signal recorded on the tape 10 is applied to a reproduction signal processing circuit 36 and a digital reproduction signal processing circuit 38 via a magnetic head 32 and a preamplifier 34.

The reproduction signal processing circuit 36 demodulates the input FM video signal into a video signal of a predetermined format, and outputs this to the contact 40A of the changeover switch 40. Further, the digital playback signal processing circuit 36 inputs digital video signals of the PCM area of multiple tracks, temporarily stores the digital video signal for one screen, converts this into a video signal of a predetermined format, and converts it into a video signal of a predetermined format. Output to contact 40B.

The changeover switch 40 has its movable contact piece 4 during normal playback.
0C is connected to the contact 40A, the video signal of the moving image output from the playback signal processing circuit 36 is guided to the video output terminal 42, and when the still image insertion mode is set and the index signal is read from the ID area of the tape 10, The movable contact piece 40C is connected to the contact 40B, and the still image video signal output from the digital reproduction processing circuit 38 is guided to the video output terminal 42.

The tape 10 is configured to stop running while a still image is being played back, and to return to normal playback when the still image insertion mode is canceled. Furthermore, the still image insertion mode during playback is set using the mode selection switch 14, and this mode selection switch 14 can also be used to select insertion methods such as wipe, fade IN/○UT, etc. that are opened when inserting still images. It has become.

Next, the still image recording sequence and still image reproduction sequence will be explained in detail according to FIGS. 3 and 4.

As shown in Figure 3, when recording a still image, first
When TR reproduction is performed (step 100) and the still image capture mode is set (step 102), a wipe pattern selectable by the mode selection switch is input (step 104).

Next, while watching the video being played, turn on the recording switch at the point where you want to insert a still image (step 1).
06), an index signal is written in the ID area of the tape (step 108).

The imaging section performs digital image signal processing such as A/D conversion of manually input video signals and writing into memory (Xf block 110), while the VTR tape is rewound by a certain amount (step 112).

Next, the digital image signal stored in the memory is divided into PCM areas of multiple tracks of the tape and written (step 114), and a start/end flag is used to determine the start/end of the digital image signal. and the wipe information is also written. After that, it is determined whether or not the still image capture mode has been canceled (step 116), and if not, step 10)
Returning to step 4, the capture of the second and subsequent still images is executed in the same manner as described above, and if it is canceled, the process ends.

When playing back a tape on which digital video signals have been recorded as described above, first the VTR is
Playback is performed (step 200), and it is determined whether the still image insertion mode is set (step 202).

Here, if the still image insertion mode is set,
One screen's worth of digital image signals and wipe information are read from the PCM area (step 204), and then one screen's worth of digital image signals stored in the memory are read and D/A conversion of the read digital image signals, etc. perform digital image processing (step 206).
. After that, when the still image insertion index signal is input manually (step 208), the still image is wiped (step 210), the tape running is stopped and VTR playback is paused (step 212), and the still image insertion mode is canceled. The still image is played back until the
.

Then, when the still image insertion mode is canceled, step 2
00, and the VTR (video) is played again.

Note that the still image insertion mode may be canceled manually by operating a switch, or after a certain period of time (for example, 5
It may also be configured to be automatically canceled after the still image is played (about 2 seconds). Furthermore, in this embodiment, still image information is inserted into a desired part of the tape by writing an index. It may also have the function of an album.

[Effect of Hathu]

As explained above, according to the camera-integrated VTR according to the present invention, it is possible to insert a new still image video signal into a desired part of the tape without erasing the already recorded video signal, and when playing back Inserted still images can be played back as needed, allowing you to enjoy a new way of enjoying video by combining moving images and still images.

[Brief explanation of the drawing]

1 and 2 are block diagrams of main parts of the camera-integrated VTR according to the present invention during recording and playback, respectively, and FIGS. 3 and 4 are flowcharts showing the operation sequence during recording and playback, respectively. , FIG. 5 is a diagram showing the tape format of an 8 mm videotape. 10...Video tape, 14...Mode selection switch, 16 River photography lens, 1
8... Imaging device, 22... A/D converter, 24... Memory, 26... Controller, 36... Playback signal processing circuit, 38... Digital playback signal processing circuit, 40... ...Selector switch.

Claims (1)

[Claims] A tape cassette with a tape format having a digital area for recording digital data in addition to an FM area for recording FM video signals is used, and the FM video is stored in the FM area and digital area of the tape of the tape cassette. A camera-integrated VTR that records and plays back signals and digital data includes an A/D converter that converts a video signal obtained by photographing a subject into a digital video signal, and a storage device that stores one screen worth of digital video signals. , mode setting means for setting a still image capture mode and a still image insertion mode; and when the still image capture mode is set and the recording switch is turned on, the digital video signal for one screen from the A/D converter is set. After storing the digital video signal in the storage means, the digital video signal is stored in the digital area of a plurality of tracks of the tape, and when the still image insertion mode is set during playback, the digital video signal recorded in the digital area of the plurality of tracks is A control means for storing a digital video signal for one screen in the storage means and for reproducing a still image video signal based on the digital video signal for one screen stored in the storage means. A camera-integrated VTR.