JPH0391384A - Edit device for high precision video signal - Google Patents

Abstract

PURPOSE:To record a standard video signal edited already by editing a high definition video signal to be reproduced based on edit information stored in a standard video signal controller and recording the edited signal as a high definition video signal already edited. CONSTITUTION:An SHD controller 3 sends picture information comprising time information included in a high definition video signal reproduced by an SHD reproduction device 1 to an SSTD controller 7, edits the high definition video signal reproduced by the device 1 based on the edit information sent from the controller 7 and records it by an SHD recorder 2. A system converter 4 converts the high definition video signal outputted from the device 1 into a prescribed standard video signal of the NTSC, PAL or SECAM system. An SSTD recording and reproducing device 5 records the standard video signal resulting from the standard video signal outputted from the converter 4 added with picture information of the high definition video signal outputted from the controller 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high-definition video signal editing device for editing high-definition video signals in HDTV.

[Conventional technology]

Conventionally, the work of editing video recorded using standard video signals of the NTSC, PAL, or SECAM systems has been performed using a standard video signal playback device, a standard video signal recording device, and an editing control device called a switcher. ing. Editing can be done in the assemble mode, in which the standard video signal is played back one cut at a time from the playback device, edited and recorded, or in the assemble mode, in which the signal from the playback device is edited and dubbed into a blank space on the recording magnetic tape of the recording device. This is done by insert mode etc. During editing, tape position information that indicates the editing point and the start point of dubbing recording is also recorded at the same time. Traditionally, cassette-type magnetic tapes have been used as recording media for editing, but in recent years, magnetic disks, optical disks, magneto-optical disks, etc. are also being used, and convenience has been improved. ing.

[Problem to be solved by the invention]

However, the conventional editing apparatus described above is intended for standard video signals such as the NTSC system, and cannot be used for high-definition video signals in HDTV, which is expected to develop and become more popular in the future. That is, the format of high-definition video signals is significantly different from that of conventional standard video signals, and it is not possible to share the recording and reproducing devices for conventional standard video signals. Therefore, dedicated equipment has conventionally been used to edit high-definition video signals. Editing using this dedicated device uses a reel-to-reel type magnetic tape as a recording medium, so there are problems in that it is cumbersome to handle and lacks convenience, and improvements are desired.

[Means to solve the problem]

In order to solve the above-mentioned problems, the high-definition video signal editing device of the present invention includes a high-definition video signal reproducing device for reproducing a high-definition video signal, and a high-definition video signal reproducing device for recording the high-definition video signal in an editing groove. While supplying screen information consisting of time information and information necessary for editing obtained from the high-definition video signal reproduced by the high-definition video signal recording device and the high-definition video signal reproducing device to the standard video signal control device; , based on the editing information stored in the standard video signal control device, edits the high-definition video signal played by the high-definition video signal reproducing device, and outputs the high-definition video signal as an edited groove high-definition video signal. A high-definition video signal control device for recording on a recording device; and a format conversion device for converting the high-definition video signal reproduced by the high-definition video signal reproducing device into a standard video signal of the NTSC system, PAL system, or SECAM system. , a standard video signal recording and reproducing device that adds and records screen information output from a standard video signal control device to a standard video signal obtained from a format conversion device, and plays back the recorded standard video signal; The standard video signal recording device that records standard video signals and the screen information supplied from the high-definition video signal control device are output to the standard video signal recording and playback device, while the standard video signal recording device records the standard video signal. A standard that causes a signal recording and reproducing device to perform a reproducing operation, edits the reproduced standard video signal, records the standard video signal of the editing groove in the standard video signal recording device, and stores information on the editing operation as editing information. It is characterized by comprising a video signal control device.

[For production]

According to the above configuration, the high-definition video signal reproduced by the high-definition video signal reproducing device is
It is converted into a standard video signal of the NTSC system, PAL system, or SECAM system.

At this time, the standard video signal control device outputs screen information consisting of time information and information necessary for editing supplied from the high-definition video signal control device to the standard video signal recording and reproducing device. The standard video signal recording and reproducing device adds screen information output from the standard video signal control device to the standard video signal output from the format conversion device and records the resulting signal. After that, the standard video signal control device causes the standard video signal recording and playback device to perform a playback operation in response to an external operation input, edits the played standard video signal, and converts the standard video signal of the editing method into a standard video signal. The video signal is recorded on the video signal recording device, and information on the editing operation is stored as editing information.

The high-definition video signal control device edits the high-definition video signal played by the high-definition video signal playback device based on the editing information stored in the standard video signal control device,
Editing method Record as a high-definition video signal in a high-definition video signal recording device. As a result, the standard video signal of the editing method is recorded on the standard video signal recording device.

〔Example〕

An embodiment of the present invention will be described below based on FIG.

As shown in FIG. 1, the high-definition video signal editing device according to the present invention is a high-definition video signal reproducing device (hereinafter referred to as 5H) as a system for handling high-definition video signals in HDTV.
11 playback device) 1, a high-definition video signal recording device (hereinafter referred to as 5IID recording device) 2, and a high-definition video signal control device (hereinafter referred to as SOD control device) 3
It is equipped with

In addition, standard video signal recording and reproducing equipment (hereinafter referred to as S STD recording and reproducing equipment) is used as a system that handles standard video signals of the NTSC system, PAL system, or SECAM system.
5, a standard video signal recording device (hereinafter referred to as S STD recording device) 6, and a standard video signal control device (hereinafter referred to as S STD recording device)
stn control device) 7 and a monitor device 8. Further, a format conversion device 4 for converting the high-definition video signal into a standard video signal is provided between the system that handles the high-definition video signal and the system that handles the standard video signal.

The above-mentioned 5IID reproducing apparatus 1 is configured to reproduce and extract a high-definition video signal recorded on a magnetic tape into a high-definition video signal as an electrical signal.

The SH recording device 2 is configured to record a high-definition video signal using the editing method based on the control operation of the SHI+ control device 3.

5) The ID control device 3 transmits screen information consisting of time information included in the high-definition video signal reproduced by the SHD reproduction device 1 and information necessary for editing to the S STD control device 7, and also performs S STD control. Based on the editing information transmitted from the device 7, a control operation is performed to edit the high-definition video signal reproduced by the 5Illll reproduction device 1 and record it in the 5IID recording device 2.

The system conversion device 4 is configured to convert the high-definition video signal output from the S/ID playback device 1 into a predetermined standard video signal of the NTSC system, PAL system, or SECAM system.

The S STD recording and reproducing device 5 records a standard video signal in which screen information of the high-definition video signal output from the S STD control device 7 is added to the standard video signal output from the format conversion device 4. It has become.

The S STD recording device 6 is configured to record the standard video signal of the editing method based on the control operation of the S STI+ control device 7.

The S STD control device 7 outputs the screen information supplied from the 5llD control device 3 to the S STD recording and reproducing device 5, and also causes the S STD recording and reproducing device 5 to perform a reproducing operation in response to an external operation input. Then, the reproduced standard video signal is edited, the standard video signal of the editing method is recorded in the SSTD recording device 6, and information on the editing operation at the time of editing is stored as editing information. Also, S3a. The editing information accumulated in the control device 7 is 5Hf
It is configured to be transmitted to the i-control device control.

The monitor device 8 performs S37. This is a device for displaying the standard video signal reproduced from the recording/reproducing device 5 on a display screen and monitoring the editing process.

In the above configuration, when editing high-definition video signals, S
, 1. The playback device 1 plays back the high-definition video signal from the magnetic tape and outputs it to the format conversion device 4, and the format conversion device 4 converts the high-definition video signal into a standard video signal and converts the high-definition video signal into a standard video signal. Output to 5.

At this time, screen information necessary for editing such as time code and frame code is input to the S STD control device 7 from the SHI+ playback device 1 via the SHD control device 3, and S80. The control device 7 sends this screen information to S STD.
Output to the recording/reproducing device 5. S STO recording/playback device W5
adds the screen information of the high-definition video signal input in synchronization with the standard video signal input from the format conversion device 4, and records it as a standard video signal.

Through the above operations, a standard video signal having screen information that is simultaneous with the high-definition video signal as a video source recorded on the magnetic tape mounted on the SHD playback device 1 is created. Note that during this series of operations, the SHD recording device 2 is in a dormant state.

The standard video signal recorded in the 5STD recording/playback device 5 is
The image is reproduced by an editor operating the S STD control device 7, displayed as an image on the monitor device 8, and edited using editing techniques such as screen compositing and cutting. in this case,
The S STD recording and reproducing device 5.5 STD recording device 6 and the S5TII control device 7 operate in a unified manner as an editing device on the standard video signal side, and editing operations are performed. The standard video signal edited in this way is recorded on the 5-sto recording device 6.

Editing information obtained during the above-mentioned editing work, for example, positional information on the tape such as editing points and dubbing recording start points, is stored in the SSTD control device 7 in a state that can be reproduced in a timeconid or the like. Therefore, the edited video information can be played back as needed to check the editing status.

In addition, the editing information accumulated in the S STD control device 7 is
S, 7. It is transmitted from the control device 7 to the SHD control device 3, and is sent to Sl. This is reproduced by the control device 3 as an editing operation of a high-definition video signal. That is, the SHO control device 3
Based on the editing information transmitted from the TD control device 7, S
Only the necessary portions of the high-definition video signal played back from the 0 playback device 1 are recorded in the 5L (D recording device 2) and edited. This editing operation is performed based on the editing information. It can be done automatically because it is reproduced.

In this embodiment, the SHD control devices 3 and 337. Although the editing information is directly transmitted to the control device 7, the editing information may be transmitted via a recording medium such as a floppy disk.

Furthermore, when editing the high-definition video signal from the SHD reproduction device 1, it is also possible to attach a monitor device to monitor the edited contents of the high-definition video signal.

〔Effect of the invention〕

As described above, the high-definition video signal editing device of the present invention includes a high-definition video signal reproducing device for reproducing high-definition video signals, and a high-definition video signal recording device for recording high-definition video signals for editing. While supplying screen information consisting of time information and information necessary for editing obtained from the high-definition video signal reproduced by the signal recording device and the high-definition video signal reproducing device to the standard video signal control device, the standard video signal Based on the editing information stored in the control device, the high-definition video signal played by the high-definition video signal playback device is edited and recorded in the high-definition video signal recording device as an edited high-definition video signal. The high-definition video signal control device and the high-definition video signal reproducing device
system, a format conversion device for converting into a standard video signal of the PAL format or SECAM format; A standard video signal recording and playback device that plays back standard video signals, a standard video signal recording device that records edited standard video signals, and a standard video signal recording and playback device that records screen information supplied from a high-definition video signal control device. While outputting to the device, the standard video signal recording and reproducing device performs playback operation in response to external operation input, edits the reproduced standard video signal, and records the edited standard video signal as a standard video signal. This configuration includes a standard video signal control device that causes the device to record information and also stores information on editing operations as editing information.

Therefore, it is possible to use the established standard video signal editing technology, and it is possible to perform advanced editing. Further, during editing, the handling of the reel-to-reel magnetic tape can be kept to a minimum, and the editing work can be simplified.

[Brief explanation of drawings]

FIG. 1 shows one embodiment of the present invention, and is a block diagram of a high-definition video signal editing apparatus. 1 is a high-definition video signal reproducing device, 2 is a high-definition video signal recording device, 3 is a high-definition video signal control device, 4 is a system conversion device, 5 is a standard video signal recording and reproducing device, 6 is a standard video signal 7 is a standard video signal control device, and 8 is a monitor device.

Claims (1)

[Claims] 1. A high-definition video signal reproducing device for reproducing a high-definition video signal, a high-definition video signal recording device for recording an edited high-definition video signal, and a high-definition video signal. Screen information consisting of time information and information necessary for editing obtained from the high-definition video signal played back by the playback device is supplied to the standard video signal control device, while the screen information is a high-definition video signal control device that edits the high-definition video signal played by the high-definition video signal reproducing device and records the edited high-definition video signal in a high-definition video signal recording device; The high-definition video signal reproduced by the high-definition video signal reproducing device is converted into NTSC system, PAL system, or SECAM system.
A format conversion device that converts the format into a standard video signal of the format; and a format conversion device that adds and records screen information output from the standard video signal control device to the standard video signal obtained from the format conversion device, and plays back the recorded standard video signal. a standard video signal recording and reproducing device for recording the edited standard video signal, a standard video signal recording device for recording the edited standard video signal, and outputting screen information supplied from the high-definition video signal control device to the standard video signal recording and reproducing device; In response to an external operation input, the standard video signal recording and reproducing device performs a reproducing operation, edits the reproduced standard video signal, records the edited standard video signal in the standard video signal recording device, and A high-definition video signal editing device comprising: a standard video signal control device that stores editing operation information as editing information.