JPH11317924A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a video and a composite image of still images by reading a still image signal relating to a video signal from a magnetic tape from a memory during reproduction of the video signal or to display the composite image in a reversed way. SOLUTION: This recording and reproducing device is provided with a means 15 that records a video signal from a video camera 2 on a magnetic tape and reproducing the video signal, a means 15 that writes management information of the video signal recorded on the magnetic tape and reads the information, a means 13 that writes a still image signal and reads it, a means 6 that composites a video signal and still image signal, a means 3 that displays selectively the still image, the video image and the composite image of the still image and the video image, and a means 4 that controls each section. Control information to reproduce the video signal is stored in the means 13 as additional information of the still image signal and the control information to read the still image signal is stored in the means 15 as video image additional information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus for recording and reproducing video signals and still picture signals.

[0002]

2. Description of the Related Art When synthesizing a still image in a moving image (imposing or the like), a complicated editing operation using an editing machine and a plurality of recording / reproducing machines is required. Also, video (video)
A still image signal is reproduced during signal reproduction to display a composite image of a video and a still image, and a video (moving image) signal is reproduced during reproduction of a still image signal to produce a composite image of a still image and a video. Displaying cannot be realized by electronic editing using an editing machine or a recording / reproducing machine.

In addition, a plurality of still images are arranged on a screen of a display device, and cueing reproduction of a magnetic tape on which a moving image related to an arbitrary still image is recorded is performed using complicated data using a personal computer or the like. Needs management.

[0004]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention relates to a method of associating a video signal with a still picture signal and using a magnetic tape without using an editing machine or another recording / reproducing machine. During the reproduction of the video signal from the, the still image signal associated with this is read out from the memory, and the composite image of the video and the still image is displayed on the display means, or while the still image is read from the memory, A video signal associated with the video signal is reproduced from the magnetic tape, and the still image and the composite image of the video are displayed on the display means. An object of the present invention is to propose a recording / reproducing apparatus capable of performing signal cueing.

[0005]

According to a first aspect of the present invention, there is provided a recording / reproducing apparatus for recording and reproducing video signals from a video camera on a magnetic tape and reproducing the video signals from the magnetic tape. A first storage unit for writing management information of a video signal to be recorded on a magnetic tape and reading out the management information; a second storage unit for writing a still image signal and reading out a still image signal; An image synthesizing means for synthesizing signals, and selectively supplying a video signal and a still image signal, and a synthesized signal of the video signal and the still image signal, and selectively displaying the video and the still image, and the synthesized image of the video and the still image. And control means for controlling each section, wherein control information for reproducing the video signal is stored in the second storage means as additional information of the still image signal, and Control information for the issue of reading,
The information is stored in the first storage unit as additional information of the video.

According to the first aspect of the present invention, the video signal from the video camera is recorded on the magnetic tape by the video recording / reproducing means, and the video signal is reproduced from the magnetic tape. Writing management information of the video signal to be recorded, reading the management information from the first storage means,
The still image signal is written to the second storage means, the still image signal is read from the second storage means, and
The video signal and the still image signal are combined, and the video signal and the still image signal, and the combined signal of the video signal and the still image signal are selectively supplied to the display means, so that the video and the still image and the combined image of the video and the still image are formed. Selectively displayed and by the control means,
Control information for controlling each section and reproducing the video signal is stored in the second storage unit as additional information of the still image signal, and the control information for reading the still image signal is
The information is stored in the first storage unit as additional information of the video.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first aspect of the present invention is a video camera, video recording and reproducing means for recording a video signal from the video camera on a magnetic tape, and reproducing the video signal from the magnetic tape, and recording on a magnetic tape. First storage means for writing management information of a video signal to be read and reading out the management information, second storage means for writing a still picture signal and reading out a still picture signal, and image combining for combining the video signal and the still picture signal Display means for selectively supplying a video signal and a still image signal, and a composite signal of the video signal and the still image signal, and selectively displaying the video and the still image, and the composite image of the video and the still image; Control information for reproducing the video signal is stored in the second storage means as additional information of the still image signal, and the control for reading the still image signal is performed. Broadcast is, as additional information of the video,
This is a recording / reproducing device stored in the first storage means.

According to a second aspect of the present invention, in the recording / reproducing apparatus according to the first aspect of the present invention, first compression / expansion means for compressing / expanding a video signal and second compression / expansion means for compressing / expanding a still picture signal. And a recording / reproducing apparatus provided with:

[Specific Example of Embodiment of the Invention] In the following description, a color video signal means a color moving image signal. The image synthesizing unit 6 includes a video camera 2, a display unit (for example, a liquid crystal display) 3, a still image memory 7, and a DV (digital video) compression / expansion unit (compression / expansion unit for a video signal, that is, a moving image signal. Still image signals can be compressed and decompressed. 8 and JPEG (Joint Photographic Experts Grou
p: Joint Photographic Experts
Group) Compression / expansion unit (compression / expansion unit for still image signal) 11
It is connected to the.

The DV compression / expansion unit 8 is provided with a DV (Digital Video Recorder) through a tape read / write unit (including a magnetic tape guide device comprising a fixed drum and a rotary drum provided with a rotary magnetic head for recording and reproduction, a recording / reproduction circuit, etc.). Digital video)
It is connected to a DV (digital video) tape (cassette magnetic tape) 10 of a cassette 16. The JPEG compression / decompression unit 11 is connected to a flash memory 13 through a flash memory read / write unit (including a read / write control circuit, a read / write address counter, and the like) 12.

The control microcomputer 4 includes a cassette memory read / write unit (including a read / write control circuit, a read / write address counter, etc.) 14 and a flash memory read / write unit 12, a video camera 2, a display unit 3, an image synthesizing unit 6, Image memory 7, DV compression / expansion unit 8, tape read / write unit 9, and JPEG compression / expansion unit 11
Control. The control microcomputer 4 includes:
The keyboard 1 and the control memory (ROM) 5 are directly connected, and the cassette memory of the DV cassette 16 (IC card memory,
Title of the video of the video signal recorded on the V-tape 10,
The storage unit 15 is connected to a flash memory 13 via a flash memory read / write unit 12.

Next, the operation of each unit will be described. 1) Recording of the color video signal from the video camera 2 onto the DV tape 10 The color video signal from the video camera 2 is
After that, the data is supplied to the DV compression / expansion unit 8 and compressed, and then supplied to the tape read / write unit 9 to record the DV tape 10 so as to form an inclined track.

2) Writing of a color video signal from the video camera 2 to the flash memory 13 1 selected from the color video signal from the video camera 2
The image for the frame, that is, the color still image signal
After that, the color still image signal is supplied to the JPEG compression / decompression unit 11 and compressed, and then stored in the flash memory 13 by the flash memory read / write unit 12.

3) Reproduction of a color video signal from the DV tape 10 and display of the reproduced video on the display unit 3 A color video signal is reproduced from the DV tape 10 by the tape read / write unit 9, and the color video signal is DV-compressed. After being supplied to the decompression unit 8 and decompressed and decompressed, the color video signal is supplied to the display unit 3 through the image synthesis unit 6 to display a color video of the reproduced color video signal.

4) Reading of a color still image signal from the flash memory 13 and display of the color still image signal on the display unit 3 A color still image signal is read from the flash memory 13 by the flash memory read / write unit 12. The color still image signal is supplied to a JPEG compression / expansion unit 11 to decompress and decompress the signal, and then the display unit 3
To display the color still image.

5) Storing a color still image signal selected from the color video signal reproduced from the DV tape 10 in the flash memory 13 A color video signal is reproduced from the DV tape 10 by the tape read / write unit 9, and the color video signal is reproduced. After the signal is supplied to the DV compression / expansion unit 9 to decompress and decompress it, one frame selected from the decompressed color video signal, that is, a color still image signal is passed through the image synthesis unit 6. After being supplied to the JPEG compression / decompression unit 11 and compressed, the data is stored in the flash memory 13 by the flash memory read / write unit 12.

6) Reading of a color still image signal from the flash memory 13 and DV of the color still image signal
Recording on Tape 10 The color still image signal read from the flash memory 13 by the flash memory read / write unit 12 is described in JP
It is supplied to the EG compression / expansion unit 11 to expand and release the compression,
The color still image signal is transmitted to the DV
After being supplied to the compression / decompression unit 8 and compressed, it is supplied to the tape read / write unit 9 and recorded on the DV tape 10 so as to form an inclined track.

7) Combining the video from the DV tape 10 with the color still image from the flash memory 13 and displaying the composite image on the display unit 3 The DV tape read / write unit 9 converts the color video signal from the DV tape 10 After reproduction, the color video signal is supplied to the DV compression / decompression unit 8 to decompress and release the compression, and then the color video signal is supplied to the image synthesis unit 8. On the other hand, a color still image signal is read from the flash memory 13 by the flash memory read / write unit 12, and the color still image signal is supplied to the JPEG compression / expansion unit 11, decompressed and decompressed, and then supplied to the image synthesis unit 6. I do. And
The image synthesizing unit 6 synthesizes the color video signal from the DV tape 10 and the color still image signal from the flash memory 13, and then supplies the synthesized color image to the display unit 3 to display the synthesized color image.

8) Compositing the color video signal from the video camera 2 with the color video signal reproduced from the DV tape 10 and storing the composite color video signal in the flash memory 13 It is supplied to the image synthesizing unit 6. The DV tape 1 is read by the tape read / write unit 9.
The color video signal reproduced from 0 is supplied to the DV compression / decompression unit 8 to decompress and decompress the color video signal, and then the color video signal is supplied to the image synthesis unit 6. The image synthesizing unit 6 synthesizes the color video signal from the video camera 2 and the color video signal reproduced from the DV tape 10 and selects one frame selected from the synthesized color video signal, that is, the synthesized color still image signal. After being supplied to the JPEG compression / decompression unit 11 and compressed, the data is stored in the flash memory 13 by the flash memory read / write unit 12.

9) Combining the color video signal from the video camera 2 and the color still image signal from the flash memory 13 and recording the composite color video signal on the DV tape 10 6 By the flash memory read / write unit 12,
After reading the color still image signal from the flash memory 13, the color still image signal is read by the JPEG compression / decompression unit 11.
, And decompresses to release the compression, and supplies the color still image signal to the image synthesizing unit 6. The image synthesizing unit 6 synthesizes the color video signal from the video camera 2 and the color still image signal from the flash memory 13, supplies the synthesized color video signal to the DV compression / expansion unit 8, compresses it, and then reads and writes the tape. The recording is performed on the DV tape 10 by the unit 9 so as to form an inclined track.

10) Automatic reading of a color still image signal from the flash memory 13 upon reproduction of a color video signal from the DV tape 10 In accordance with an operation from a keyboard, the control microcomputer 4 causes the tape read / write unit 9 and the DV compression / expansion to operate. Part 8
The DV tape 10 is run, and the tape read / write unit 9 reproduces a color video signal from the DV tape 10 and supplies the reproduced color video signal to the DV compression / expansion unit 8 to decompress and decompress it. Then, the color video signal is supplied to the display unit 3 through the image synthesizing unit 6 to display the color video.

Under the control of the control microcomputer 4, the cassette memory read / write unit 14 reads out the color still image control data stored in the cassette memory 15, and transfers the color still image control data to the control microcomputer. The data is supplied to and stored in the control memory 5 through the computer 4. The color still image control data includes position information of a tape on which a color still image is to be displayed, a color still image identification ID (a file name is also possible), and a flash memory identification ID (this can be omitted).

The flash memory read / write unit 12 reads a color still image signal from the flash memory 13 and supplies the read color still image signal to the JPEG compression / expansion unit 11 to decompress the image and decompress it. Supply to section 6. Control microcomputer 4
When the DV tape 10 being reproduced comes to a position where a color still image is to be displayed, the control unit controls the image synthesizing unit 6 to output only the synthesized color video signal or the color still image signal.

11) Readout of the color still image signal from the flash memory 13 and automatic reproduction of the start of the color video signal from the DV tape 10 In accordance with the operation from the keyboard 1, the control microcomputer 4 makes the flash memory read / write unit 12 and JP
The EG compression / expansion unit 11 is controlled and the flash memory 13 is accessed. Flash memory read / write unit 1
2, a color still image signal is read from the flash memory 13 and the read color still image signal is
After supplying the color still image signal to the JPEG compression / expansion unit 11 to decompress and decompress it, the color still image signal is supplied to the color still image memory 7 through the image synthesizing unit 6 and temporarily stored. During reading from the flash memory 13, the color still image signal is supplied to the display unit 3 through the image synthesizing unit 6 to display the color still image.

Under the control of the control microcomputer 4, tape control data stored separately from the color still image signal in the flash memory 13 is read out by the flash memory read / write unit 12, and the read tape control data is read out. Is the control microcomputer 4
And is stored in the control memory 5 whenever necessary.

The tape control data includes position information of a tape to be searched and a cassette identification ID (this can be omitted) corresponding to each color still image signal.

A color still image signal is read from the flash memory 13 by the flash memory read / write unit 12, and the read color still image signal is converted into a JPE.
After being decompressed and decompressed by the G compression / decompression unit 11, it is supplied to the image synthesis unit 6.

The control microcomputer 4 finds the tape position of the DV tape 10 corresponding to the color still image signal being read, and outputs the DV tape 1 to the color still image signal.
0, the reproduced color video signal is supplied to the display unit 33 to display the composite color image, or the color video signal reproduced from the DV tape 10 is displayed on the display unit 3. And the control microcomputer 4 controls the image synthesizing unit 6 to display the color image.

12) Correspondence of the flash memory 13 to the DV tape 10 In accordance with the operation of the keyboard 1, the control microcomputer 4 controls the tape read / write unit 9 and the DV compression / expansion unit 8 and causes the DV tape 10 to run. In accordance with the operation from the keyboard 1, the control microcomputer 4 causes the flash memory read / write unit 12 and the JPEG
The flash memory 13 is accessed by controlling the compression / expansion unit 11.

The color video signal and the color still image signal are synthesized by the image synthesizing unit 6 according to the operation from the keyboard 1, and the synthesized color video signal is displayed on the display unit 3.
To display the composite color image.

In accordance with the operation from the keyboard 1, the control microcomputer 4 causes the DV tape 10
And the identification ID of the flash memory 13 are stored in the cassette memory 15 by the cassette memory read / write unit 14.

13) D for the flash memory 13
According to the operation of the keyboard 1, the control microcomputer 4 causes the flash memory read / write unit 12 and the JPE
The flash memory 13 is accessed by controlling the G compression / decompression unit.

In accordance with the operation from the keyboard 1, the control microcomputer 4 controls the tape read / write unit 9 and the DV compression / expansion unit 8, and controls the DV tape 10
To run.

In accordance with the operation of the keyboard 1, the control microcomputer 4 synthesizes the color video signal and the color still image signal in the image synthesizing section 6, and supplies the synthesized color video signal to the display section 3 to be synthesized. Display a color image.

In accordance with the operation from the keyboard 1, the control microcomputer 4 causes the position information of the DV tape 10 and the identification ID of the flash memory 13 to be read.
Is stored in the flash memory 13 by the flash memory read / write unit 12.

[0036]

According to the first aspect of the present invention, a video camera, video signal recording means for recording a video signal from the video camera on a magnetic tape and reproducing the video signal from the magnetic tape, and recording on the magnetic tape First storage means for writing management information of a video signal to be read and reading out the management information, second storage means for writing a still picture signal and reading out a still picture signal, and image combining for combining the video signal and the still picture signal Display means for selectively supplying a video signal and a still image signal, and a composite signal of the video signal and the still image signal, and selectively displaying the video and the still image, and the composite image of the video and the still image; Control information for reproducing the video signal is stored in the second storage means as additional information of the still image signal, and the control for reading the still image signal is performed. Broadcast is, as additional information of the video,
Since the image signal is stored in the first storage means, the video signal and the still image signal are associated with each other, and the video signal from the magnetic tape is used without using an editing machine or another recording / reproducing machine. During playback of a still image signal, the still image signal associated with the still image signal is read out from the memory, and a composite image of the video and the still image is displayed on the display means. The reproduced video signal is reproduced from the magnetic tape, and the composite image of the still image and the video is displayed on the display means, or while the still image signal is read from the memory,
It is possible to obtain a recording / reproducing apparatus capable of performing cueing of a video signal recorded on a magnetic tape.

According to the second aspect of the present invention, in the recording / reproducing apparatus according to the first aspect of the present invention, the first method for compressing and expanding a video signal is provided.
Compression / expansion means, and a second
And a recording / reproducing apparatus capable of increasing the storage capacity for the magnetic tape and the storage capacity for the second storage means while obtaining the same effects as the first aspect of the present invention. Can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a specific example of an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Keyboard, 2 ... Video camera, 3 ... Display part, 4 ...
Control microcomputer, 5 ... Control memory, 6 ...
Image synthesis unit, 7: Still image memory, 8: DV compression / expansion unit, 10: DV tape, 11: JPEG compression / expansion unit, 1
2: Flash memory read / write unit, 13: Flash memory, 15: Cassette memory, 16: DV cassette

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI H04N 5/76 H04N 5/93 Z 5/93 G11B 27/08

Claims (2)

[Claims] 1. A video camera, and a video signal from the video camera is recorded on a magnetic tape,
A video recording / reproducing means for reproducing a video signal from a magnetic tape, and writing management information of the video signal to be recorded on the magnetic tape,
First storage means for reading the management information, second storage means for writing a still image signal and reading the still image signal, image synthesizing means for synthesizing the video signal and the still image signal, a video signal and a still image signal And display means for selectively supplying a composite signal of the video signal and the still image signal to selectively display the video and the still image, and the composite image of the video and the still image, and control means for controlling each unit. The control information for reproducing the video signal is stored in the second storage unit as additional information of the still image signal, and the control information for reading the still image signal is added to the video image. A recording / reproducing apparatus, wherein information is stored in the first storage means. 2. The recording / reproducing apparatus according to claim 1, further comprising: first compression / expansion means for compressing / expanding the video signal; and second compression / expansion means for compressing / expanding the still image signal. A recording / reproducing apparatus characterized in that: