JPH0242697A - Disk editing device and system for editing - Google Patents

Abstract

PURPOSE:To complete a successive recording to a second disk at the time of a movement from a recording track to an unrecording track by recording a signal, in which the reproducing signal of a first disk is delayed with a delaying means, to the second disk. CONSTITUTION:A reproducing signal (a) and a recording control signal (c) of a player 2 as a first means to mount a first disk 1a are inputted to a player 4 as a second means to mount a second disk 1b, and a reproducing control signal (b) of the player 4 is inputted to the player 2. At such a time, for example, the reproducing signal (a) of the first disk 1a is outputted after delaying a reproducing signal one frame time with a delaying circuit. When a detecting means detects the fact that the track is the unrecording track, a timing is made into one by which the reproducing signal of the recording track of the first disk 1a is recorded by a recording means. Thus, the recording to the second disk is controlled by using a recording control means, and the recording is completed when the recording of the reproducing signal of the recording track of the first disk is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disc editing device, and in particular, to a disc editing device that continuously reproduces a first disc in which recorded tracks and unrecorded tracks coexist and continuously reproduces a second disc. The present invention relates to a disk editing device and its editing method suitable for recording.

[Prior Art] With the development of devices that can record information on discs and reproduce them, there has been a need for disc editing devices that can edit or copy discs that have already been recorded.

As described in Japanese Unexamined Patent Application Publication No. 59-8182, a conventional disc editing device performs a predetermined setting operation at the beginning of editing work, and performs a predetermined setting operation on the first disc.
The track number of the track on which the signal to be recorded on the second disk has not been recorded is stored in the disk editing device in the editing order, and the signal is then automatically reproduced from the track of the first disk recorded one track at a time. Then, the data was recorded onto the second disc.

[Problem to be solved by the invention]

The conventional disk editing device described above is a device that reproduces signals from a first disk one track at a time and records them on a second disk. No consideration has been given to the case where the signals recorded on N+n are continuously reproduced and continuously recorded on the second disk.

For this reason, when recording signals recorded on consecutive tracks from N tracks to N+n) racks on the first disk to the second disk, the N
, N+1. - Store n+1 track numbers (N+n) in the disc editing device, search the stored tracks, play back the signal from the first disc, record it on the second disc, and then write the next stored track. In order to perform a search, the signal must be sequentially played back from the first disk one track at a time and recorded onto the second disk.
This required a lot of effort and time.

Further, the conventional disk editing device described above has one
This was not a particular problem because the signals were played back track by track from the first disk and recorded on the second disk, but it is possible to play back consecutive tracks on the first disk and then record them on the second disk. In a disc editing device capable of continuous recording, when a first disc has a recording track on which a signal is recorded and an unrecorded track on which a signal has not yet been recorded, the first disc is continuously played back and the first disc is When recording continuously on the second disk, when the playback track of the first disk moves from the recorded track to the unrecorded track, the edited track of the second disk corresponding to the unrecorded track has noise or There was a problem in that the signals generated by the first disk reproducing device were recorded. This is particularly a problem in disc editing apparatuses that use write-once (write-once) discs.

An object of the present invention is to continuously reproduce a first disk in which recorded tracks and unrecorded tracks coexist and continuously record on a second disk, when the reproduced track of the first disk changes from the recorded track to the unrecorded track. When moving, the second
An object of the present invention is to provide a disk editing device and its editing method that solve the above problem by terminating continuous recording on the disk.

[Means to solve the problem]

The above object is to provide a recording means for recording a signal on a second disk after delaying the reproduction signal of the first disk by a predetermined time in a reproduction means for reproducing a signal from a first disk. and a detecting means for detecting whether a reproduced track of the first disk is a recorded track or an unrecorded track, and when the detecting means determines that the track is an unrecorded track, the reproducing means sends a message to the recording means. This is achieved by providing a recording control means for terminating recording on the second disk.

[Effect]

Since a signal obtained by delaying the reproduction signal of the first disk by the delay means is recorded on the second disk, the first disk is continuously reproduced and the reproduction signal is continuously recorded on the second disk, When the playback track of the first disk moves from the recording track to the unrecorded track in the playback means and the detection means detects that the track is an unrecorded track, the recording means is still recording the first disk. Set the timing so that the track playback signal is being recorded. The reproducing means detects an unrecorded track with the detecting means, controls recording on the second disk in the recording means using the recording control means, and reproduces the recording track of the first disk. Recording is terminated when the signal has been recorded onto the second disk.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is an explanatory diagram showing an example of a disk used in the present invention, in which 1 is a disk, 6 is a guide track, 7 is an address area, and 8 is a recording positioning mark.

In the figure, in addition to groove-shaped guide tracks 6, a disk 1 includes an address area 7 in which an address signal indicating a track number unique to each guide track is recorded, and a recording position adjustment area for each guide track. Recording alignment marks 8 to be used are formed. In FIG. 2, only the spiral track 6 is shown, but it goes without saying that this may be a concentric track.

FIG. 3 is an explanatory diagram showing the configuration of an optical head 9 for recording and reproducing used in the present invention, in which 9 is an optical head, 10 is a laser diode, 11 is a collimating lens, 12 is a polarizing beam splitter, 13 is the A wavelength plate, 14
15 is an actuator, 15 is an objective lens, 16 is a convex lens, 17 is a mirror 18 is a concave lens, and 19.20 is a two-split light receiving element.

In the figure, a light beam from a laser diode 10 passes through a collimating lens 11 to become parallel light, passes through a polarizing beam splitter 12 and an A-wave plate 13, and is narrowed down as a light spot onto a disk 1 by an objective lens 15 attached to an actuator 14. .

On the other hand, the reflected light from the disk 1 is converted into parallel light again by the objective lens 15, passes through the A wavelength plate 13, and then is reflected by the polarization reflecting surface of the polarization beam splitter 12. After the reflected light passes through the convex lens 16, the light beam is split into two by the mirror 17.
One of them is passed through a concave lens 18 to a two-split light receiving element 19 for detecting a focus error, and the other is a two-segment light receiving element 2o for detecting a tracking error.
is incident on the

FIG. 4 is a block diagram showing an example of an optical recording and reproducing device used in the disk editing apparatus of the present invention, in which 1 is a disk, 21 is a detection photosensor for detecting the recording alignment mark 8, and 22 is a photo sensor for detecting a recording alignment mark 8; Input the detection signal of the detection photosensor 21 and record the recording positioning mark 8 detection pulse h
A waveform shaping circuit 23 outputs a disk motor 2 so that one revolution of the disk corresponds to one frame of the video signal.
4, a focus control circuit 25 that focuses the light beam from the laser diode 10 onto the disk 1 by controlling the actuator 14 built into the optical head 9, and 30 a focus control circuit that controls the disk 1. A tracking control circuit causes the upper light spot to follow the guide track 6; 31 is a recording/reproducing signal processing circuit; 32 is a recording/reproduction signal processing circuit for detecting whether the track being reproduced is a recording track by envelope detection or frequency detection of the signal reproduced from the disk; A playback RF detection circuit that detects unrecorded tracks;
33 is an address demodulation circuit, 34 is a recording control circuit that controls the start and end of recording on the disk 1 using the recording position alignment mark 8 detection pulse h, 35 is a system controller composed of a microcomputer, memory, etc., and 3 is a search unit. A keyboard 38 is used to input the track number of a track or an editing start command, etc., and 38 is composed of a digital memory, a delay element, etc., for delaying the playback signal by a certain period of time, for example, approximately 33.3m5ec (one frame time of the playback signal), and outputting the delayed signal. This is a delay circuit.

In the optical recording/reproducing apparatus, the signal a to be recorded on the disc 1 is FM modulated by the signal processing circuit 31, converted into an RF signal, and then input to the laser drive circuit 26.

While the laser control signal e from the recording control circuit 34 is at a high (or low) level, the laser drive circuit 26 intensity-modulates the output light of the laser diode 10 incorporated in the optical head 9 according to the input RF signal d, and drives the disc. 1, and information is recorded as changes in the reflectance of the laser beam from the disk 1.

Further, during reproduction, the laser control signal e from the recording control circuit 34 is set to a low (or high) level, and the laser drive circuit 26 irradiates the disc 1 with a low output beam of constant intensity to read the recorded information into the I -V conversion circuit 2
7, the preamplifier 28, the signal processing circuit 31 performs FM demodulation, and the delay circuit 38 outputs a reproduced signal a2 delayed by a certain period of time.

FIG. 5 is a block diagram showing an example of the recording control circuit 34. The recording control circuit 34 is composed of an AND gate 36 and a D-type flip-flop 37.
When the output of the AND gate 36 becomes high level, the next recording positioning mark 8 detection pulse h sets the laser control signal e to high level and starts recording on the disk. The laser control signal e is set to low level by the recording positioning mark 8 detection pulse h to complete recording on the disk.

FIG. 1 is a block diagram showing an embodiment of a disc editing apparatus according to the present invention, in which la and lb are discs, 2.4 is a player, 3a and 3b are keyboards, and 5 is a monitor.

In the figure, a playback signal a and a recording control signal C from a player 2 (a recording/playback device or a playback-only device) as a first means on which a first disk 1a is mounted are transferred to a second player on which a second disk 1b is mounted. A reproduction control signal of the player 4 is inputted to the player 4 (a recording/reproducing device or a recording-only device) as a means for manually inputting the reproduction control signal to the player 2.

In this embodiment, the reproduced signal a of the first disk 1a is delayed by about 33.3 m5ec (one frame time of the reproduced signal) by the delay circuit and output.

FIG. 6 is a configuration diagram showing an example of the RFF output circuit 32, and FIG. 7 is a waveform diagram illustrating an example of the operation of the RFF output circuit of FIG.

In the reproduced tracks in FIG. 7, track number M+L M+2 indicated by diagonal lines is a recorded track, and track number M+3, which is not shaded, is an unrecorded track.

At the sixth tooth, when the RF multiplied signal reproduced from the first disk 1a in FIG. 1 is input to the envelope detection circuit 39, if the input signal is higher than the voltage across the capacitor C1, the capacitor C1 charges and When the signal falls below the voltage across capacitor C1, it discharges through resistor R1. By repeating this operation, the envelope detection signal β of the reproduced RF signal is obtained. This envelope line detection a and resistances R2 and R3
The comparator 40 compares the voltage m determined by the envelope detection signal β with the level m, and outputs a low level if the envelope detection signal β is lower than the level m, and otherwise outputs a high level as an RFF output signal. When the RF detection signal is at a low level, it is determined that the reproduced RF signal is from an unrecorded track, and when the RF detection signal is at a high level, it is determined that it is a reproduced signal from a recorded track.

Track number M+1 in Figure 7 shows a case where there is a dropout in the reproduced RF signal, and due to the dropout, the -instantaneous level of the reproduced RF signal is lower than that of the normal reproduced signal up to that point. . However, due to the time constant of the resistor R1 of the envelope circuit 39, the envelope detection signal l
Since the level does not change significantly and does not fall below the rn level, the RF detection signal k can be kept at a high level. In this way, in this example, there is no possibility that a recorded track or an unrecorded track will be erroneously determined due to an instantaneous change in the reproduced RF signal due to dropout, noise, or the like.

An example of control when editing a disc by the disc editing apparatus of the present invention will be described below.

FIG. 8 is a waveform diagram illustrating a case where track numbers M to N+2 of the first disk 1a are continuously recorded and edited to track numbers N to N+2 of the second disk 1b, and the tracks of the disk 1a are The case where all numbers M to N+2 are recording tracks will be explained. In FIG. 8, the diagonally shaded tracks on the disk la indicate recording I racks, and the diagonally shaded tracks on the disk 1b indicate recorded tracks.

Tracks without diagonal lines indicate unrecorded tracks.

Prior to disc editing, the player 2 uses the keyboard 3a to put the player 2 into a moving picture playback standby state using the track number M of the disc 1a, and then searches for the track number N of the player 4 using the keyboard 3b.

When the recording end track is designated from the keyboard 3b to the player 4 and an editing start command is input, the controller 35 of the player 4 turns the playback control signal high (or low) using the recording position alignment mark 8 detection pulse h of the disc 1b. level, commands player 2 to start playing the video, and reverse jumps twice to track number N-
When set to 1, the continuous recording standby state is entered. When the controller 35 of the player 2 detects that the playback control signal C has gone high (or low), it performs a reverse jump once with the recording position alignment mark 8 detection pulse of the disk 2a, and then sets the recording control signal C to a high (or low) level. low) level and start continuous playback from track number M.

The controller 35 of the player 4 detects that the recording control signal C has become high (or low) level, and
Set the recording control circuit 34 control signal g to high (or low) level. And record positioning mark 8
When the detection pulse h of The continuous recording start timing of disks] and b can be adjusted. Thereafter, the controller 35 of the player 4 counts the recording positioning mark 8 detection pulses and reaches the desired recording end track M+.
At step 2, the recording control signal 34 control signal g is returned to low (or Vine level) to control recording to end on the track, and the playback control signal 34 is returned to low (or high) level to control the player. The controller 35 of the player 2 commands the end of the continuous playback of the player 2.
When the playback control signal becomes low (or high) level, the still image playback state is returned and the editing of the disc is completed. Incidentally, if correlated still images (a plurality of frames constituting a moving image) are recorded on continuous tracks of the first disc Ia, the continuous playback signal can be monitored as a moving image.

FIG. 9 shows a case where an attempt is made to record and edit track numbers M to N+4 of the first disk 1a to track numbers N to N+4 of the second disk 1b.
Track M+3. FIG. 4 is a waveform diagram illustrating a case where M+4 is an unrecorded track. In FIG. 9, in the same manner as in the example of FIG. 8, the timing of the start of continuous reproduction of the first disk 1a and the start of continuous recording of the second disk 1b are aligned. The controller 35 of the player 2 changes the RF multiplication signal from low to high (or from high to low) during disc editing, that is, during continuous playback, and the playback track of the player 2 changes from recorded track M+2 to unrecorded track M+3. When the movement is detected, the recording control signal C is returned to the low (or high) level. As a result, the output of the AND gate 36 in the recording control circuit 34 of the player 4 becomes low (or high).
level, and the next recording positioning mark detection pulse h
Then, the laser control signal e becomes low (or high) level, and the recording ends when up to N+2 tracks are recorded.

In this embodiment, the playback signal of the disc 1a is output to the player 4 side with a delay of about 33.3m5ec (one frame time of the playback signal) by the delay circuit 36, so that the playback signal from track number N to N+2 of the disc 1b is disc 1
Playback signals of N+2 from track number M of a are recorded,
Track number N+3 of the disc 1b may be unrecorded. In this embodiment, the delay time in the delay circuit 36 was set to approximately 33.3 m5ec (one frame time of the reproduced signal), but in the player 2, if the track being played back on the disc 1a changes from a recorded track to an unrecorded track. This is detected and the player 4 is activated by a recording control signal.
Of course, it is only necessary to set the player 4 so that the reproduction signal of the recording track of the disc 1a is still being recorded when the command to end recording is issued.

Further, when the disc editing device according to the present invention is applied, when the first disc 1a having a mixture of recorded tracks and unrecorded tracks is continuously reproduced and continuously recorded on the second disc lb, the reproduction of the first disc 1a is performed. When a track changes from a recorded track to an unrecorded track, it is possible not only to end recording on the second disk 1b, but also to sequentially record only the recording tracks of the first disk onto the second disk. can.

FIG. 10 shows track numbers M and M+ of the first disk 1a.
1. M+2 and N+5. N+6. N+7 is the recording track, track number M+3. For example, if M+4 is an unrecorded track, track numbers M to N+ of the disk 1a
7 continuously, and move track numbers M to N+2 of disk 1a from N to N+2 of disk 1b.
This is an example of a timing chart when recording and editing track numbers M+5 to N+7 of the disc 1b to track numbers N+3 to N+5 of the disc 1b. Similarly to the example in FIG. 9, during disk editing, track number M+3 of the first disk 1a
Since this was an unrecorded track, the player 4 recorded up to track number N+2 and then stopped recording. However, the controller 35 of the player 2, which had been continuing continuous playback, changed the RF double signal to low (or high) level. , upon detecting that the playback track of the player 2 has moved from the unrecorded track M+4 to the recorded track M+5, the controller 35 sets the recording control signal C to high (or low).
level, and commands player 4 to resume recording.

The controller 35 of the player 4 stops recording at track number N+2 of the first disk 1b, performs a reverse jump at the recording positioning mark 8 detection pulse h, and enters a recording standby state at track number N+2. When it is detected that the signal C has returned to high (or low), the control signal g to the recording control circuit 34 is set to high (or low) level, and the recording position alignment mark 8 detection pulse h is input to the recording control circuit 34. Then,
The laser control signal e goes high (or low) and continuous recording resumes.

Thereafter, by editing up to a desired track in the same manner, only the recording tracks of the first disk 1a can be sequentially recorded and edited onto the second disk 1b.

In addition to these, according to the present invention, it is also possible to perform disc recording and editing while leaving unrecorded tracks on the second disc that correspond to unrecorded tracks on the first disc.

FIG. 11 shows, for example, recording track numbers M to N+2. of the first disk 1a. N+5 to N+7 are track numbers N to N+2 . of the second disk 1b. N+5 to N
+7 respectively, and track number N+3. N+4 is a timing chart when performing disc recording and editing without recording. The controller 35 of the player 4 starts disc editing in the same way as the example shown in FIG. 9, and stops recording at track number N+2 of the disc 1b.
By moving the optical head 9 in the outer circumferential direction at the same speed as during recording and making it correspond to the track number of the first disk 1a being played back by the player 2, the player 2 plays back recording track M+5, Set the recording control signal C to high (
or low), the player 4 can record the reproduced signals from the M+5 track on the first disc la onto the corresponding N+5 track and onwards on the second disc 1b.

Thereafter, by performing disk editing in the same manner, only the recording tracks of the first disk 1a are recorded on the corresponding tracks of the second disk 1b, and the unrecorded tracks M+3. Track N+3. of the second disk 1b corresponding to M+4. N+4 can be recorded and edited without being recorded.

Incidentally, when the playback track of the first disk 1a changes from an unrecorded track to a recorded track during disk editing in the above embodiment, the time constants, etc. of the RFF output circuit 32 and the signal processing circuit 31 of the player 2 change. When a distorted screen is played back, player 2 plays the first track that changed from an unrecorded track to a recorded track twice, and player 4 changes the recording start track to the corresponding track on the first disk 1a of player 2. By adjusting the settings, you can avoid recording distorted screens (disc editing is possible).

FIG. 12 is an example of a timing chart for disc editing in which a disturbed screen is not recorded even when the first disc playback track changes from an unrecorded track to a recorded track. The recorded/unrecorded state of the first disk 1a is the 9th disk.
This is similar to the example shown in the figure. During disk editing, when the controller 35 of the player 2 detects that the RF signal turns low (or high) and that the player 2 is playing back recording track M+5, it changes the recording control signal C to high (or low). , a reverse jump is performed once at the next recording positioning mark 8 detection pulse h, and the first track M+5, which has changed from the unrecorded track M+4 to the recorded track M+5, is reproduced again, and then continuous reproduction is continued.

During disc editing, when the controller 35 of the player 4, which had stopped recording, detects that the recording control signal C becomes high (or low) level and commands to resume recording, it moves the next recording position alignment mark. It performs a reverse jump once at 8 detection pulses h, enters a continuous recording standby state at track number N+4, and sets the recording control circuit control signal g to a high (or low) level. When the recording positioning mark 8 detection pulse h is input to the recording control circuit 34, the laser control signal e becomes high (or low) level, and continuous recording is restarted from track number N+5. In this way, disc recording and editing can be performed without erroneous recording on an unrecorded disc.

〔Effect of the invention〕

As explained above, according to the present invention, when a first disc in which recorded tracks and unrecorded tracks are mixed is continuously reproduced and recorded and edited on a second disc, the reproduced track of the first disc is Since recording on the second disk can be terminated when moving from a recorded track to an unrecorded track, there is no noise or noise on the track of the second disk corresponding to the unrecorded track of the first disk. Signals generated by the playback device are not recorded, and there is no reduction in recording efficiency, especially on write-once discs.Also, during disc editing, the playback track of the first disc does not change from the unrecorded track. When moving to a recording track, it is possible to restart recording on the second disk, so you can record and edit only the recording tracks of the first disk on the second disk sequentially, or
It is possible to perform disk editing such as recording on the track of the second disk corresponding to the recording track of the second disk and leaving other tracks unrecorded. A disc editing device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of a disc editing device according to the present invention, FIG. 2 is an explanatory diagram showing an example of a disc to which the present invention is applied, and FIG. FIG. 4 is a block diagram showing an example of an optical recording/reproducing apparatus used in the present invention, and FIG. 5 is a block diagram showing an example of an optical head of an optical recording/reproducing apparatus of FIG. 3. The figure is a timing chart illustrating an example when all playback tracks are recording tracks in disk editing according to the present invention, and FIG. 9 is an example of a case where recording ends when a playback track changes to an unrecorded track during disk editing. FIG. 10 is a timing chart illustrating an example of sequentially recording only the recording tracks of the playback disk onto the recording disk. FIG. 11 is a timing chart explaining the case where only the recording tracks of the playback disk are recorded on the recording disk tracks corresponding to the recording tracks of the playback disk. A timing chart illustrating an example of a case where editing is performed and other tracks are left unrecorded. FIG. 12 is a timing chart illustrating an example of when editing is performed and other tracks are left unrecorded. FIG. 3 is a timing chart illustrating an example of editing a track by leaving it as an unrecorded track in FIG. 2 with more certainty. 1... Disc, 2... Player (playback side), 3... Keyboard, 4... Player (recording side), 5...・Monitor, 6...
... Guide track, 7 ... Address area, 8
... Recording positioning mark, 9 ... Optical head, 10 ... Laser diode, 26
. . . Laser drive circuit, 31 . . . Signal processing circuit, 32 . . . RF signal detection circuit, 34.
... Recording control circuit, 35 ... Controller, 36 ... AND gate, 37 ...
D-type flip-flop, 38...Delay circuit, 3
9... Envelope detection circuit, 40... Comparator, a... Reproduction signal, b... Reproduction control signal, C... Recording control signal, e... Laser control signal, k... RF detection signal, 2...
...Envelope detection signal, m...Comparison level. Figure 3

Claims (1)

[Claims] 1. A first means for reproducing a signal recorded from a first disk on which address information indicating a guide track and a guide track number is formed, and a first means for reproducing a signal recorded by the first means; A disc editing device comprising: a second means for recording a reproduction signal of one disc onto a second disc; and an operation means for operating the first means or the second means, wherein the first means a detection means for detecting whether the track being reproduced is a recorded track or an unrecorded track on which no signal is recorded; a delay circuit for delaying the signal reproduced by the first means; 1. A disc editing device comprising: recording control means for controlling continuous recording from the first means to the second disc in the second means. 2. In the disc editing method using the disc editing apparatus according to claim 1, after the reproduction signal of the first disc reproduced by the first means is delayed by the delay circuit, the second means During continuous recording to the second disk by continuously reproducing the first disk containing a mixture of recorded tracks and unrecorded tracks,
The detecting means detects that the track being reproduced by the first means changes from a recorded track to an unrecorded track, and the recording control means is used to record the track on the second disc in the second means. By terminating the recording of
the second disk corresponding to the recording track of the first disk;
A disc editing method characterized in that recording ends on a track of the second disc, and tracks of the second disc corresponding to unrecorded tracks of the first disc are left unrecorded. 3. In the disc editing method using the disc editing apparatus according to claim 1, the detection is performed while the first disc, in which recorded tracks and unrecorded tracks are mixed, is continuously reproduced and continuously recorded on the second disc. said first by means
After detecting that the track being reproduced has changed from a recorded track to an unrecorded track by the means and finishing recording on the second disk in the second means using the recording control means, When the means detects that the track being reproduced by the first means has changed from an unrecorded track to a recorded track, the recording control means is again used to record data on the second disk in the second means. 1. A disc editing method characterized in that when recording is started, only a reproduced signal of a recording track of the first disc can be recorded on the second disc.