JP2619405B2 - Disc editing method and apparatus - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for recording / editing a reproduction signal output from a reproduction apparatus on a disk, and particularly to a method and apparatus for normally reproducing a reproduction signal from a reproduction apparatus. If not output,
The present invention relates to a disk editing method and apparatus suitable for preventing erroneous recording on a disk.

[Prior Art] With the development of a device capable of recording and reproducing information on a disk, a disk editing device capable of recording and editing a reproduction signal output from the reproducing device on the disk has been required.

2. Description of the Related Art Conventionally, there is the following technology as a disk editing apparatus for reproducing a signal recorded on a first disk and recording the signal on a second disk.

For example, a technique described in Japanese Patent Application Laid-Open No. 59-8182 (hereinafter, referred to as a first conventional technique) performs a predetermined setting operation at the beginning of an editing operation, and stores a second disc in a first disc. The track number of the track on which the signal to be recorded is recorded is stored in the order of editing, and thereafter, the signal is automatically reproduced from the tracks of the first disk stored one by one and recorded on the second disk. I was going to go. Further, a technique described in Japanese Patent Application Laid-Open No. 62-132288 (hereinafter referred to as a second prior art)
For example, by outputting an edit start signal indicating the start of editing from the recording device for the second disk to the reproducing device for the first disk, the start of moving image reproduction on the first disk and the reproduction on the second disk A signal recorded on a desired continuous track of the first disk is continuously recorded on a desired track of the second disk in synchronization with the start timing of moving image recording.

[Problems to be solved by the invention]

The first prior art is an apparatus that reproduces a signal from a first disk one track at a time and records a signal on a second disk. The track is continuously recorded on the first disk, for example, from a track number N to a track number. No consideration has been given to the case where the signal recorded in N + n is recorded on the second disk. For this reason, at the time of the first setting of editing, N, N + 1,..., N + n and n track numbers are stored in the disk editing device, the stored tracks are searched, and the signal is reproduced from the first disk to reproduce the second disk. The signal must be reproduced one track at a time from the first disc and recorded on the second disc, such as to search for the next stored track. It was necessary.

The second prior art solves the problem of the first prior art, and reproduces a moving image from the track number N to the track number N + n of the first disk to record a moving image on a desired track of the second disk. It was like. However, since no consideration has been given to the case where the moving image reproduction of the first disk cannot be started at the time of starting the disk editing, an abnormal signal is recorded on the second disk. In addition, when a reproducing apparatus requires a certain amount of time to output a reproduction signal normally, as in a video tape recorder, an abnormal signal is recorded on the disc during this time. In addition, when the signal cannot be reproduced from the first disk during the editing of the disk, or because the erroneous operation of the operation means has not been considered, the signal cannot be normally output from the first disk during the editing of the disk. In such a case, the recording on the second disk is continued, or only the moving image reproduction of the first disk is stopped due to an erroneous operation of the operation means, so that the tracks recorded thereafter become the desired tracks on the first disk. There is a problem that a track on which a signal different from the track is recorded is obtained. This is particularly problematic in a disc editing apparatus that uses a write-once (write once) disc.

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned problems of the prior art, and when starting editing a disc, the reproducing apparatus cannot immediately and normally output a reproduction signal recorded on the disc, or when the output cannot be performed, the disc editing apparatus outputs to the disc. It is another object of the present invention to provide a disc editing method and apparatus which can prevent recording of a disc from being started and can stop disc editing when the reproducing apparatus cannot output the reproduction signal normally.

[Means for solving the problem]

According to a first invention (an invention of a method), in a disk editing method of recording a reproduction signal from a reproduction device on a disk by a recording device, a reproduction control signal for requesting a reproduction signal to be recorded on the disk to the reproduction device is recorded. After the recording has occurred in the apparatus, recording is started in the recording apparatus based on a recording control signal from the reproducing apparatus that permits recording.

According to a second aspect of the present invention, in a disk editing apparatus including a recording device for recording a reproduction signal from a reproduction device on a disk, a reproduction control signal for requesting the reproduction device to output a reproduction signal to be recorded on the disk to the recording device. And a recording control signal generating means to which a recording control signal for permitting recording is input from the reproducing apparatus, and the recording permitting the recording after generating the reproduction control signal. The recording is started based on the control signal.

According to a third aspect of the present invention, there is provided a disk editing apparatus provided with a recording device for recording a reproduction signal from a reproduction device on a disk, the reproduction control signal for requesting the reproduction device for a reproduction signal to be recorded on the disk. And a recording control signal generating means to which a recording control signal for permitting or prohibiting recording is input from a reproducing apparatus, and that the recording is permitted after generating the reproducing control signal. The recording is started based on a recording control signal to be performed, and the recording is prohibited based on a recording control signal for prohibiting the recording.

According to a fourth aspect of the present invention, in a reproducing apparatus for outputting a reproduction signal to be recorded on a disk, a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus side; Recording control signal generating means for generating a recording control signal for permitting recording to the apparatus, and recording permitting the recording when normal output of the reproduction signal becomes possible based on the reproduction control signal. It is configured to generate a control signal.

According to a fifth aspect of the present invention, there is provided a reproducing apparatus for outputting a reproduction signal to be recorded on a disk, comprising: a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus; Recording control signal generating means for generating a recording control signal for permitting or prohibiting the recording of the device, based on the reproduction control signal, when the normal output of the reproduction signal becomes possible, the recording is performed A recording control signal for permitting is generated, and when a normal output of the reproduction signal becomes impossible, a recording control signal for prohibiting the recording is generated.

According to a sixth aspect of the present invention, in a reproducing apparatus for outputting a reproduction signal to be recorded on a disk, a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus side; Recording control signal generating means for generating a recording control signal for permitting recording to the apparatus; and superimposing means for superimposing additional information such as operation-related information on the reproduction signal. The superimposing operation is stopped, and when a normal output of the reproduction signal becomes possible, a recording control signal for permitting the recording is generated.

According to a seventh aspect of the present invention, in a reproducing apparatus for outputting a reproduction signal to be recorded on a disk, a reproduction control signal generating means for inputting a reproduction control signal for requesting the reproduction signal to be recorded on the disk from the recording apparatus side; Recording control signal generating means for generating a recording control signal for permitting recording to the apparatus, and operation signal input means for inputting an operation signal from the operation means, wherein the operation signal input means based on the reproduction control signal The operation is stopped, and a recording control signal for permitting the recording is generated when a normal output of the reproduction signal becomes possible.

[Action]

The recording device starts recording based on a recording control signal from the reproducing device that permits recording after a reproduction control signal is generated at the start of disc editing. The reproduction device generates a control signal for permitting the recording when the normal output of the reproduction signal becomes possible based on the reproduction control signal. A playback device cannot immediately output a playback signal to be recorded on a disc. Alternatively, when the output is not possible, the control signal for permitting the recording is not generated, and the recording is not started by the recording device. If the reproducing device cannot output the reproduction signal normally during the editing of the disc, the recording device generates a recording control signal for prohibiting the recording, and the recording device prohibits the recording.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is an explanatory diagram showing an example of a disk used in the present invention. In FIG. 1, the disc 1 has, in addition to the groove-shaped guide tracks 6 at the time of its manufacture, an address area 7 in which an address signal indicating a track number unique to each guide track is recorded, and a recording position alignment for each guide track. A recording alignment mark 8 to be used is formed. In FIG. 2, for the sake of simplicity, only the linear track 5 is shown, but it is needless to say that this may be a concentric track.

FIG. 3 is an explanatory diagram showing the configuration of the optical head 9 for recording / reproducing used in the present invention. In the figure, a light beam from a laser diode 10 is a collimating lens.
It becomes parallel light through 11, and the polarizing beam splitter 12, 1 /
Through the four-wavelength plate 13, it is narrowed down as an optical spot on the disk 1 by the objective lens 15 attached to the actuator 14.

The reflected light from the disk 1 is converted into parallel light again by the objective lens 15, passes through the quarter-wave plate 13, and is reflected by the polarization reflection 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 a mirror 17, one of which passes through a concave lens 18 to a two-division light receiving element 19 for detecting a focus error, and the other split into two for detecting a tracking error. The light enters the light receiving element 20.

FIG. 4 is a block diagram showing an example of an optical recording / reproducing apparatus used for the apparatus of the present invention. In the figure, 1 is a disk, 21 is a detection photosensor for detecting the recording alignment mark 8, 22 is a detection signal of the detection photosensor 21 input, and outputs a recording alignment mark 8 detection pulse h. A waveform shaping circuit; 23, a disk motor drive circuit for controlling a disk motor 24 so that one rotation of the disk 1 corresponds to one frame of a video signal; and 25, a feed motor for moving the optical head 9 in the disk radial direction. Drive circuit, 26
Is a drive circuit of the laser diode 10 incorporated in the optical head 9, 27 is an IV conversion circuit, 28 is a preamplifier, 29 is a light from the laser diode 10 by controlling the actuator 14 incorporated in the optical head 9. A focus control circuit for focusing the beam on the disk 1; a tracking control circuit 30 for following a light spot on the disk 1 to the guide track 6; a recording / reproduction signal processing circuit 31; a reproduction RF detection circuit 32; An address demodulating circuit, 34 is a recording control circuit for controlling the start and end of recording on the disk 1 by the recording alignment mark 8 detection pulse h, 35 is a system controller composed of a microcomputer, a memory, etc.
Is a keyboard for inputting a track number of a track to be searched or an editing start command.

In the optical recording / reproducing apparatus, a signal a1 to be recorded on the disk ₁ is FM-modulated by a signal processing circuit 31, and an RF signal d
Is input to the laser drive circuit 26.

The laser drive circuit 26 receives the output light of the laser diode 10 incorporated in the optical head 9 while the laser control signal e from the recording control circuit 34 is at a high (or low) level.
The intensity is modulated in accordance with the RF signal d and irradiated onto the disk 1, and information is recorded as a change in the reflectance of the laser light from the disk.

At the time of 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 disk 1 with a low-intensity output beam having a constant intensity, so that the recorded information is transmitted. IV conversion circuit 27
Through the preamplifier 28 and the signal processing circuit 31
And FM demodulation and outputs a reproduced signal a _2.

FIG. 5 shows 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 goes to the high level, the laser control signal e is turned to the high level by the next recording alignment mark 8 detection pulse h. To start recording on the disc,
The laser control signal e is changed to low level by the next recording alignment mark 8 detection pulse h at which the output of the AND gate 36 is changed to low level, and the recording to the disk is completed.

In the case of editing a disc, as shown in FIG. 1, a player 2 as a reproducing apparatus to which a first disc 1a is mounted.
A reproduction signal a from a (recording / reproducing device or a reproduction-only device) is input to a player 4 (recording / reproducing device or recording-only device) as a disk editing device on which the second disk 1b is mounted. In the apparatus according to the present invention, a reproduction control signal b of the player 4 is input to the player 2, and a recording control signal c of the player 2 is input to the player 4. In the figure, 5 is a monitor, and 3a and 3b are keyboards.

FIG. 6 shows, as an example of a timing chart when editing a disc, a case where the track numbers M to M + 2 of the disc 1a are recorded in the track numbers N to N + 2.

Prior to the disc editing, the player 2 puts in advance a moving image reproduction standby state with the track number M of the disc 1a using the keyboard 3a, and then searches the track number N of the player 4 using the keyboard 3b.

Recording end track N + from the keyboard 3b to the player 4
2 is designated and an edit start command is input,
The controller 35 of the disk 1b has the recording position alignment mark 8
With the detection pulse h as a trigger, the player 4 sets the reproduction control signal b to a high (or low) level, instructs the player 2 to start moving image reproduction, reverse jumps twice, and enters a moving image recording standby state with the track number N-1. . When the controller 35 of the player 2 detects that the reproduction control signal b has become a high (or low) level, the disc 1a
The recording control signal c is set to a high (or low) level by using the recording alignment mark 8 detection pulse h as a trigger, a reverse jump is performed once with the next recording alignment mark 8 detection pulse h, and then the reproduction of a moving image is started. . The controller 35 of the player 4 detects that the recording control signal c has become high (or low) level, and sets the recording control circuit 34 control signal g to high (or low) level. Then, when the recording alignment mark 8 detection pulse h is input to the recording control circuit 34, the laser control signal e becomes high (or low) level, and moving image recording is started.
Thereafter, the controller 35 of the player 4 counts the detection pulses of the recording alignment mark 8 and sets the control signal g of the recording control circuit 34 to a low (or high) level at a desired recording end track (track number N + 2 in FIG. 6). The control is performed so that the recording is completed in the track by returning to the state of (1). After the recording is completed, the reproduction control signal b is returned to a low (or high) level, and the player 2 is instructed to end the reproduction of the moving image. When the reproduction control signal b becomes low (or high) level, the controller 35 of the player 2 returns to the still image reproduction state, and ends the disk editing.

Here, when the controller 35 of the player 2 detects that the reproduction control signal b has become high (or low) level, for example, when the reproduction track is shifted from the track number M, the controller 35 sets the reproduction track to the track number M. After that, the recording control signal c is set to the high (or low) level, or the recording control signal c is not set to the high (or low) level when the player 2 is stopped.

The controller 35 of the player 2 outputs the reproduction signal b
During playback of a moving image, that is, during editing of a disc, the operation state of each circuit is checked by a focus signal i, a motor signal j, and the like, and whether or not a signal is normally reproduced from the disc 1a is checked. In such a case, the recording control signal c is returned to a low (or high) level, and the recording on the disc 1b by the player 4 is stopped. FIG. 7 shows that the moving image is reproduced from the track number M of the disk 1a onward, and the moving image is recorded on the disk 1b after the track number N, that is, while the track number M + 2 of the disk 1a is reproduced during the disk editing. 6 shows an example of a timing chart when the controller 35 detects an abnormality. When detecting an abnormality, the controller 35 of the player 2 sets the recording control signal c to a low (or high) level. As a result, in the recording control circuit 34 of the player 4 shown in FIG. 5, the output of the AND gate 36 becomes low (or high) level, and the laser control signal e becomes low at the next recording alignment mark 8 detection pulse h. (Or high) level and stop recording.

According to the present embodiment, after the player 2 is set to the moving image reproduction standby state with the moving image reproduction start track, the recording of the moving image is instructed to the player 4 and the moving image recording is instructed. Of the moving image recording can be synchronized, so that a signal recorded on a desired continuous track of the disk 1a can be continuously (moving image) recorded on a desired continuous track of the disk 1b.

Further, when the player 2 cannot immediately output the reproduction signal of the disk 1a or cannot output the reproduction signal, the recording control signal c is not set to the high (or low) level to the player 4. No signal is recorded.

Also, during the disc editing, the first
When the signal cannot be normally reproduced from the disc 1a, the recording on the second disc by the player 4 can be stopped when the recording on the track currently being recorded is completed. There is an effect that the reproduction signal is not continuously recorded on the disk 1b.

In addition to the above, the controller 35 of the player 2 controls the reproduction control signal b to prevent the moving image reproduction of the disk 1a in the player 2 from being stopped by the erroneous operation of the keyboard 3a shown in FIG. During playback of a moving image, that is, during editing of a disc, an input relating to stopping the playback of a moving image from the keyboard 3a may be ignored.

In FIG. 1, a player 2 is provided to improve operability.
May be superimposed on the signal recorded on the disk 1a with the track number or the operation state of the player 2. In order to prevent the reproduction signal a on which information is superimposed in this way from being recorded on the disc 1b, the reproduction control signal b from the player 4 causes the player 2 to superimpose the information during reproduction of a moving image, that is, while editing the disc. Can be performed so that only the signal recorded on the disk 1a is recorded on the disk 1b.

〔The invention's effect〕

According to the present invention, the start of moving image reproduction of the player with the first disk mounted thereon and the start of moving image recording of the player with the second disk mounted thereon can be synchronized with each other. Can be recorded continuously on desired tracks on the second disk one by one without interrupting the recording, and when editing the disk, the signal from the first disk can be read from the first disk. This has the effect of minimizing the chance of performing processing other than recording on the second disk, and enabling the disk to be edited quickly.

Also, if the player with the first disc mounted thereon cannot start moving image playback normally, the player with the second disk mounted will not start moving image recording.
No abnormal signal is recorded on the second disk.

Further, when the signal cannot be normally reproduced from the first disk during the editing of the disk, the recording on the second disk can be stopped. Therefore, the disturbed reproduced signal from the first disk is transmitted to the second disk. In particular, a disk editing apparatus using a write-once (one-time-write) disk cannot erase a signal once recorded, so that defective recording tracks on the second disk are minimized. There is an effect that can be. Also, in a disk editing device using an erasable disk, the second
This has the effect of reducing omission of detection of defective recording tracks on the disk and shortening the editing time by early detection.

Furthermore, during the editing of the disc, a video signal cannot be normally reproduced due to an erroneous operation of the player to which the first disc is mounted, and a reproduction signal on which information on the operation state of the player to which the first disc is mounted is output. Therefore, an abnormal signal is not recorded on the second disk in the player on which the second disk is mounted.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a disc editing apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory view showing an example of a disc applied to the present invention, and FIG. 3 is an optical type used in the disc editing apparatus of the present invention. FIG. 4 is a block diagram showing an example of the optical head of the recording / reproducing apparatus, FIG. 4 is a block diagram showing an example of the optical recording / reproducing apparatus, and FIG. 5 is an explanatory diagram showing an example of a recording control circuit of the optical recording / reproducing apparatus. FIG. 6 is a timing chart illustrating an example of a normal recording operation of the disk editing apparatus according to the present invention. FIG. 7 is a timing chart illustrating an example of the recording operation being stopped due to an abnormality in the disk editing apparatus. It is. 1 ... Disc, 2 ... Player (playback), 3 ... Keyboard, 4 ... Player (recording), 6 ... Guide track, 7 ... Address area, 8 ... Recording alignment mark, 9 ... Optical Head 10 Laser diode 26 Laser driving circuit 31 Signal processing circuit 34 Recording control circuit 35 Controller 36 AND gate 37 D flip-flop a ... A reproduction signal, b. A reproduction control signal, c. A recording control signal, and e. A laser control signal.

Claims (7)

(57) [Claims] 1. A disk editing method for recording a reproduction signal from a reproduction apparatus on a disk by a recording apparatus, comprising: generating a reproduction control signal for requesting the reproduction apparatus to output a reproduction signal to be recorded on the disk to the recording apparatus; A disk editing method, wherein recording is started by a recording device based on a recording control signal for permitting recording from a reproducing device. 2. A disc editing apparatus comprising a recording device for recording a reproduction signal from a reproduction device on a disk, wherein the recording device transmits a reproduction control signal for requesting the reproduction device to output a reproduction signal to be recorded on the disk. Recording control signal generating means for generating a recording control signal for permitting recording from a reproducing device, and recording control signal generating means for receiving the recording control signal for permitting recording from the reproducing apparatus. A disc editing apparatus configured to start recording based on a signal. 3. A disk editing apparatus having a recording device for recording a reproduction signal from a reproduction device on a disk, wherein the recording device transmits a reproduction control signal for requesting the reproduction device to output a reproduction signal to be recorded on the disk. A reproducing control signal generating means for generating, and a recording control signal generating means for receiving a recording control signal for permitting or prohibiting recording from the reproducing apparatus,
After the generation of the reproduction control signal, the recording is started based on the recording control signal for permitting the recording, and the recording is prohibited based on the recording control signal for prohibiting the recording. Disk editing device. 4. A reproduction apparatus for outputting a reproduction signal to be recorded on a disk, comprising: a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus side; Recording control signal generating means for generating a recording control signal for permitting recording, and a recording control signal for permitting the recording when normal output of the reproduction signal becomes possible based on the reproduction control signal. A playback device configured to generate 5. A reproduction apparatus for outputting a reproduction signal to be recorded on a disk, comprising: a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus; Recording control signal generating means for generating a recording control signal for permitting or prohibiting the recording of the data, and permitting the recording when the normal output of the reproduction signal becomes possible based on the reproduction control signal. A reproducing apparatus, which is configured to generate a recording control signal and generate a recording control signal for inhibiting the recording when a normal output of the reproduction signal becomes impossible. 6. A reproduction apparatus for outputting a reproduction signal to be recorded on a disk, comprising: a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus side; Recording control signal generating means for generating a recording control signal for permitting recording, and superimposing means for superimposing additional information such as operation-related information on the reproduction signal, and superimposing the superimposing means based on the reproduction control signal. A reproducing apparatus characterized in that the operation is stopped and a recording control signal for permitting the recording is generated when a normal output of the reproduction signal becomes possible. 7. A reproduction apparatus for outputting a reproduction signal to be recorded on a disk, comprising: a reproduction control signal generating means for inputting a reproduction control signal for requesting a reproduction signal to be recorded on the disk from the recording apparatus side; Recording control signal generating means for generating a recording control signal for permitting recording, and operation signal input means for inputting an operation signal from the operation means, wherein the operation of the operation signal input means is performed based on the reproduction control signal. To stop,
A reproducing apparatus, wherein a recording control signal for permitting the recording is generated when a normal output of the reproduction signal becomes possible.