JPS60243888A - Editing method of information signal - Google Patents

Abstract

PURPOSE:To ensure effective editing of video signals, etc. in a short time by scanning repetitively the same recording track in a non-recording state by the track jump pulses at the final end of recoding track where the 1st information signal is recorded. CONSTITUTION:A track jump comand signal 5-3 is outputted to a recording/reproducing device A from a controller 5, and an optical head 11 is set in a reproduction mode. Then the head 11 has tracking to a final end Q from P where the 1st information signal is recorded toward an arrow head 33 and is set under a waiting state where the tracks are jumped to the P from Q and the same track is scanned repetitively. In this case, the address information PA is read by a reproduction circuit 19. Then a VTR1 is set in a reproduction mode, and a time code reader 4 detects that the desired reproduction information is reproduced. Thus an output 5-1 is given to the controller 5 and a record signal 5-2 is given to laser control circuit 17. Then the head 11 is set in a record mode, and the 2nd information is recorded on a recording track 31 on a disk 10 at and after a point P.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an editing method for recording a playback signal from a playback device on a disk recording/playback device using a disk-shaped recording medium. A method of recording video signals from a VTR onto a recordable disc.
In particular, the present invention relates to a method suitable for use in an editing device.

Conventional configuration and its problems Conventionally, a VTR has been used to edit video signals. In the case of a VTR, since a magnetic tape is used as a recording medium, a rise time of several seconds or more is required for the VTR to operate normally, and for editing operations, after locating the editing point in advance, the playback signal is After rewinding both the VTR for sending out the video and the VTR for recording (called pre-roll), the process starts and after the playback signal becomes stable, the editing and recording operation begins. Therefore, cueing the editing position took a long time and was inefficient.

OBJECTS OF THE INVENTION The present invention simplifies editing and recording operations and allows video signals to be edited efficiently in a very short period of time.

Structure of the Invention The editing method of the present invention includes a first information signal followed by a second information signal.
When recording the information signal, the first information signal is recorded by a signal conversion element along a predetermined spiral recording track on a rotationally driven disc-shaped recording medium,
At the final end of the recording track where the first information signal is recorded, the signal conversion element is caused to repeatedly scan the same recording track in a non-recording state by a trunk jump pulse, and the second information to be recorded is recorded. The present invention is characterized in that an editing point is detected, the track jump pulse is stopped, the signal conversion element is placed in a recording state, and a second information signal is sequentially recorded following the first information signal.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is a block diagram showing an example of the configuration of an editing device according to the present invention.

1 is a VTR, in which the video signal and V of the video signal are set in advance.
A time code signal is recorded during the blanking period. 2 is a video output of the VTR 1, and 3 is a synchronization signal input. The time code information read by the time code reading device 4 is sent to the controller 6. This controller 5 is used to control the recording/reproducing device A using a recording disk according to the output 5-1 of the time code reading device 4, and 5-2 issues recording commands, and 6-3 tracks tracks. This is a signal that commands a jump.

1Q is a recording disc, 11 is a recording disc 1
An optical head with a signal conversion element that records and reproduces a signal at 0;
12 is a disk motor, 13 is a V mark sensor, which detects the rotational phase of the recording disk 1o, converts it into a pulse signal by a waveform shaping circuit 16, and controls the disk motor 12 by a disk motor servo circuit 14; It operates to maintain a constant relationship between the output of the synchronizing signal generator 2o and the rotational phase of the recording disk 10. 19 is optical head 1
This is a reproducing circuit that detects a reproduction signal of No. 1 and address information of a recording track. Numeral 18 is a tracking servo circuit for controlling the optical head 11 to track the track of the recording disk 10, and performs a track jump when the output 5-3 of the controller 5 is input. 16
is a modulation circuit, which modulates the video output output to the output terminal 2, passes through the laser control circuit 17, and outputs the video output to the optical head 11.
The modulated video signal is recorded on the track of the recording disk 10 by the following.

The output 5-2 of the controller 6 is a recording command signal, and the optical head 11 enters the recording state only when this output 5-2 is input to the laser control circuit 17, and at other times the optical head 11 enters the reproducing state. .

The output of the synchronization signal generator 20 is also given to the synchronization signal input of the VTR 1, and as a result, the rotation of the recording disk 10 is controlled in synchronization with the synchronization signal of the video output of the VTFt. FIG. 2 shows the configuration of the recording disk shown at 1o in FIG. 31 is a spiral recording trunk, and address information (PA, QA, RA, SA) for identifying recording tracks is provided in advance on the recording disk. P, Q, R, and S are each address (PA, OA.

RA, SA) indicates the starting point.

Further, a ■ mark 32 is provided to detect the rotational phase of the recording disk 1o.

Next, the operation will be explained using the timing chart shown in FIG.

First, the controller 6 outputs a command signal 6-3 to the recording/reproducing apparatus shown in FIG. The vehicle is in a standby state in which it tracks from P to Q along the direction of arrow 33, trunk jumps from Q to P, and repeatedly scans the same track. At this time, the address information PA is being read by the reproduction circuit 19. Next, the VTR 1 is put into a playback state, the video output is played back, and at time t3, when the time code reading device 4 detects that the desired playback information has been played back,
The output of the time code reading device shown in 6-1 is given to the controller 5, the recording command signal 5-2 is given to the laser control circuit 17, the optical head 11 enters the recording state, and at time t3, the second , the frame shown by A of the video output in 2 starts from point P in Figure 2, and then the frame shown by mouth goes from point Q.
The video signal is then recorded continuously on the recording track 31 of the recording disc. In this way, the desired information can be immediately confirmed and recorded from any position on the recording track 31 of the recording disc, which greatly facilitates the editing and recording work.

Effects of the Invention As described above, first, a recording track of a recording disk is selected by detecting address information of the track,
On the above recording track, give a track jump signal to the recording/reproducing light source and put it in standby mode, then reproduce the information you want to record from a VTR, etc., and record the location (editing point)
At the same time as detecting that the recording/reproducing optical head has been reproduced, the recording/reproducing optical head is brought into the recording state and the track jump signal is cut off, thereby making it possible to sequentially record the signals to be recorded onto the desired recording tracks. This is something that could not be done using the electronic editing method conventionally used with VTRs. In other words, this is an epoch-making method that eliminates the need for IJ rolls and the complicated fast-forwarding and rewinding operations required with VTRs. If the method of the present invention is used, for example, in assemble editing, the time required for editing can be significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of an editing device according to the editing method of the present invention, FIG. 2 is a configuration diagram of a recording disk used in the device, and FIG. 3 is a timing diagram of the editing device during editing and recording. It is a chart. 1...VTR, 4...Time code reading device 9, 6...Controller, 10...
... Disk, 11 ... Optical head (signal conversion element), 12 ... Motor, 16 ... Modulation circuit, 17 ... Laser control circuit, 18・・・・・・
...Tracking servo circuit, 19...Reproduction circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2,

Claims (1)

[Claims] When recording a second information signal following the first information signal, the first information signal is recorded along a predetermined spiral recording track on a rotationally driven disc-shaped recording medium. is recorded by a signal conversion element, and at the final end of the recording track where the first information signal is recorded, a track jump pulse is applied to the signal conversion element in a non-recording state,
The same recording track is repeatedly scanned to record the second
detecting an editing point at which information is to be recorded, stopping the track jump pulse, putting the signal conversion element into a recording state, and sequentially recording a second information signal following the first information signal; An information signal editing method characterized by: