JPH0731902B2 - Information signal editing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information signal editing apparatus, and more particularly to editing a recorded information signal of a master information recording medium formed by mixing recorded tracks and unrecorded tracks. Then, the present invention relates to an information signal editing device for recording on a slave information recording medium consisting of only unrecorded tracks.

2. Description of the Related Art Among information recording media, information recording discs (especially video discs) often record information signals continuously from the inner peripheral position of the recording area to the outer peripheral direction. In the recording disc, the recording area is divided into a plurality of areas, and the information signal (especially video signal) of the type and field assigned in advance for each divided recording area is set to be recorded. In some cases, the recorded tracks are not continuous and the recorded track groups and the unrecorded track groups exist alternately.

Of the already recorded information on the information recording disk that is randomly recorded, only the desired recorded information is edited, and no information is recorded (however, the track address recorded at the disc manufacturing stage, etc. There is a case where it is desired to record in any unrecorded area of the unrecorded information recording disk.

However, since there is no device for editing and recording as described above, the start track position of the desired recorded information on the master information recording medium is found and the slave information recording medium It is necessary to find the desired track position and then start the reproduction operation of the master information recording medium and at the same time to start the recording operation of the slave information recording medium, resulting in extremely poor operability for editing and recording. It took a lot of time to search, was not practical, and was actually difficult to realize.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an information signal editing apparatus which can be edited and recorded easily and easily in a short time.

Means for Solving the Problems FIG. 1 shows a block diagram of the principle of the present invention. In the figure, reference numeral 11 denotes a master information recording medium, which is formed by mixing recorded tracks and unrecorded tracks. Reference numeral 12 is a slave information recording medium, which comprises only unrecorded tracks. Reference numeral 13 is a reproducing means, 14 is an address detecting / storing means, and the address detecting / storing means 14 is a start address and an end address of each of the recorded tracks of the master information recording medium which are continuous recorded tracks as an information recording area. Are detected only in a predetermined number of ranges, and the detected addresses are stored.

Further, 15 is a designating means for designating a start address and an end address of an arbitrary information recording area among start addresses and end addresses of one or more information recording areas stored in the address detecting / storing means 14, respectively. To do. A recording control means 16 controls the reproduction track position of the master information recording medium 11 by the reproducing means 13 based on the address of the information recording area designated by the designating means 15, and thereby the designated information recording area taken out from the reproducing means 13. The reproduction information signal of is recorded on the slave information recording medium.

Reference numeral 17 denotes an operation control means, which controls the reproduction track position of the master information recording medium 11 by the reproduction means 13 so as to reproduce each of the information recording areas having the start address and the end address after the predetermined number of the master information recording medium 11. At the same time, the address detecting / storing means 14 is operated again.

Function In the present invention, even when there are many information recording areas of the master information recording medium 11, the number of each of the start address and the end address of the information recording area stored in the address detecting / storing means 14 is limited. Therefore, the time for address detection and the amount of address data can be kept below a certain value.

Embodiment FIG. 2 shows a block diagram of an embodiment of the present invention. 20 in the figure
Is a personal computer and constitutes the above-mentioned designating means 15 and operation control means 17 and also constitutes the above-mentioned recording control means 16 together with the disk recording / reproducing device 23. The personal computer 20 is connected to the disk recording / reproducing devices 22 and 23 via a module 21, respectively. Also, a time base collector (TBC) 24 is connected in the middle of the video signal transmission path from the disk recording / reproducing devices 22 to 23,
Further, various synchronizing signals from the synchronizing signal generator 25 are supplied to the personal computer 20 and the disk recording / reproducing devices 22 and 23, respectively.

The disc recording / reproducing device 22 is a device for reproducing an optical disc in which recorded tracks and unrecorded tracks coexist as a master optical disc 26.
The storage means 14 is configured, and the advance sync signal for jitter correction from the TBC 24 is supplied to the external sync signal input terminal, and is connected to the module 21 and the RS-232C protocol to interact with the personal computer 20. It is configured to allow various operations.

Further, the disc recording / reproducing device 23 is a device for recording an input information signal from the TBC 24 on a slave optical disc 27 which is a write-once type optical disc consisting of only tracks in which information signals other than track addresses recorded in the disc manufacturing stage are not recorded. Then, the composite sync signal is supplied from the sync signal generator 25 to the external sync signal input terminal, and the module 21 and the RS-232C protocol are connected to each other so that the personal computer 20 can be interactively operated. ing. The sync signal generator 25 supplies a black burst signal (BB) to the TBC 24 as an operation reference signal of the TBC 24, and also supplies a frame signal to the mouse terminal of the personal computer 20.

The personal computer 20 controls all of the control of this apparatus by the search software 28, displays the edit screen shown in FIG. 4 on the monitor TV 29, and the editor records the recorded information of the master optical disk 26 onto the slave optical disk 27. Is easy to do.

The information signal reproduced by the disc recording / reproducing apparatus 22 from the master optical disc 26, that is, the video signal of the video signal and the audio signal is supplied to the TBC 24 from the video output terminal to correct the jitter, and then the video of the disc recording / reproducing apparatus 23. It is input through the input terminal and recorded at the corresponding track address of the slave optical disc 27.
At this time, the audio signal reproduced from the master optical disc 26 does not pass through the TBC 24 and is transmitted to the slave optical disc 27.
Recorded in.

Here, the disk recording / reproducing devices 22 and 23 have, for example, the same configuration and are configured as shown in FIG. 81 in the figure
Is a system controller, 82 is a video signal input terminal, 83
Is an audio signal input terminal. The external input video signal is input to the modulator 86 via the input terminal 82 and the video processor 84.
External input audio signal is input to the input terminal 83
And an audio processor 85 and input to a modulator 86, each of which is modulated into a predetermined signal form, and then an LD driver 87.
Is applied to the laser diode (LD) via the, and its light intensity is changed according to information. The light from the LD is applied to an optical disc (not shown) for recording.

This optical disk is synchronously rotated by a disk motor 94 to which signals are respectively supplied from a sync signal generator 90, a phase comparator 91, an equalizer 92, and a driver 93. The LD driver 87 is attached to the optical base 89 together with the head amplifier 88, and the optical base 89 is moved by the step motor 111 in a fixed direction during recording.

Next, at the time of reproduction, the reproduction RF signal obtained by detecting the change in the light intensity of the reflected light from the optical disk passes through the head amplifier 88 and the RF amplifier 95, respectively, and the audio demodulator 96, Y demodulator 97 and C
The signals are supplied to the demodulators 98, and the audio signals, the luminance signals, and the carrier color signals are demodulated. The reproduction luminance signal is supplied to the video processor 99 together with the reproduction carrier color signal, and is output as a reproduction color video signal of a predetermined signal form here, while the SYNC separator 100 separates and extracts the synchronization signal and the phase comparator 91. Is supplied to.

Further, the reproduced RF signal is supplied to the RF detection circuit 101, detected here, and then supplied to the system controller 81.
Further, the signal from the head amplifier 88 obtained based on the reflected light of the sub light beam different from the main light beam for recording / reproducing the information signal is recorded on the optical disc by the focus servo circuit including the equalizer 102, the driver 103 and the pull-in circuit 104. The light beam is focused and focused on. The pull-in circuit 104 is a circuit that operates when pulling in the focus servo circuit. When the focus servo is closed loop, the driver 103 is vibrated in a predetermined cycle.
The peak of 88 output is detected, vibration is stopped and the servo is closed loop.

The output signal of the head amplifier 88 is supplied to a tracking servo circuit including an equalizer 105, a driver 106 and a jump circuit 107, where it is converted into a tracking error signal and supplied to an optical base 89. The tracking servo circuit and the focus servo circuit operate not only during reproduction but also during recording.

Further, the output signal of the driver 106 is the radial processing circuit 1
It is supplied to the step motor 111 through 08, the counter 109, and the driver 110, respectively, and controls the operation thereof. The radial processing circuit 108 includes a driver 1 that is a drive voltage for the rotating mirror.
When the output voltage of 01 exceeds a predetermined level, the step motor 111 is driven to move the entire optical base 89 in the radial direction of the optical disc. As a result, the turning mirror is always controlled to turn around the neutral position.

The drawer unit 112 lowers the disc tray based on the signal obtained by detecting that the disc tray is closed by the various signal detectors 114, clamps the optical disc on the turntable, and vice versa. A signal obtained by detecting that the disc is turned on by the various signal detectors 114 raises the disc tray and ejects the disc. In addition, the mode and the like of the recording / reproducing apparatus are displayed on various display devices 113.

The regulator 115 supplies a DC power supply voltage to each part of the device. The system controller 81 has an external pulse input unit 116,
A signal is also supplied from the interface 117 and the sensor 118. The system controller 81 has a central processing unit (CPU) and a memory.

Next, the operation of the embodiment of the present invention based on the control of the personal computer 20 shown in FIG. 2 will be described. After setting the floppy disk in which the search software 28 of FIG. 2 is stored in the drive of the personal computer 20, the system is started when the power of the personal computer 20 is turned on, and the disk recording / reproducing devices 22 and 23 of FIG. The reproduction operation is started respectively, and the master optical disk 26 and the slave optical disk 27 are reproduced up to the track address 1 and the standby state is set at the address 1, and the IDs recorded before that are reproduced from the screen of FIG. The ID is displayed on the screen (step 31 in FIG. 5).

Next, the personal computer 20 displays a message as to which of automatic copy and edit copy is to be selected on the screen of FIG. 4 and is in a state of waiting for input (step 32 in FIG. 5). When the editor selects the edit copy, the process proceeds to step 37 in FIG.
22 is controlled to search the recorded area (recorded track group) of the master optical disk 26 within a range up to a predetermined number (for example, 120).

The recorded area in step 37 is specified to be searched from the end (the first address) of the master optical disk 26 without fail, and is searched by the subroutine shown in FIG.
That is, first, reproduction is started from the end of the master optical disk 26 and it is determined whether or not there is a reproduction RF signal (step 51),
If "Yes", it means that the first address has been recorded, so the personal computer 20 stores that the start address of the first recorded area is "1" (step 52). When “No” is obtained in step 51,
When the address storage in step 52 is completed, the presence / absence of the RF signal is determined again (step 53), and if it is “present”, the end position of the recorded track is searched (step 53).
54), that address, that is, the recorded end track address of the recorded track group is stored (step 55). On the other hand, when it is determined in step 53 that the RF signal is "absent", the start position (recording start track address) of the recorded track is searched (step 56) and the track address is stored (step 57).

The end position search of the recorded track in step 54 is performed according to the flowchart shown in FIG. That is, first, a track jump is performed to reproduce the track (step 541), and after an extremely short time delay designated by the circuit operation of the RF detection circuit 101 and the like (step 54).
2) The presence / absence of a reproduction RF signal from the jumped track is determined (step 543). If there is a reproduction RF signal, the reproduction track is an already-recorded track, and therefore the presence or absence of the reproduction RF signal is determined from the above-mentioned one-track jump (steps 541 to 5).
Repeat the process of 43) until the RF signal becomes "none".

When it is determined that the reproduction RF signal is "absent", the personal computer 20 sets the device 22 in the still mode (step 54
4) Repeatedly reproduce the unrecorded track for which the above reproduction RF signal is judged to be "absent" and subtract "1" from the track address of the unrecorded track to calculate the address of the last track of the recorded track group. Yes (step 546).

Further, the search for the start position of the recorded track in step 56 of FIG. 6 is performed according to the flowchart shown in FIG. That is, one track jump,
The delay of the time required to determine the circuit operation and the detection of the reproduction RF signal from the jump destination track are repeated until the reproduction RF signal is detected (steps 561 to 563). Then, when the reproduction RF signal is detected, the first recorded track after the unrecorded track group is reproduced in the still mode (step 564), and the track address of the already recorded track is reproduced and detected and confirmed (step 564). 565).

In this way, the track address indicating the end position of the recorded track searched in step 54 of FIG. 6 (process flowchart of FIG. 7) is stored (step 55).
Alternatively, it is stored in the track address indicating the start position of the recorded track retrieved in step 56 of FIG. 6 (process flowchart of FIG. 8) (step 57).
Then, the process proceeds to step 58 and the counter is incremented by "1". Next, it is determined whether or not the value of this counter has reached "240" (step 59), and when it has not reached "240", it has been determined whether or not the value of the storage address has reached "54000" indicating the final track address. Is determined (step 60),
If it is less than "54000", the process of step 53 is performed.

In this way, each time the start address of the recorded track or the end address of the recorded track is stored, the counter counts up by "1" until the counter value reaches "240" (that is, recorded The number of areas is "12
When it reaches 0 "or when the last track address" 54000 "is detected (steps 59, 60), the recorded area is displayed in the screen shown in FIG. 4 (step 61), and the process is terminated. (Step 62) Steps of main routine shown in FIG.
Proceed to 38. It should be noted that the screen shown in FIG. 4 displays a maximum of 15 recorded areas.

In step 38, editing work is performed. The editor also uses the function keys to copy (step 39 in FIG. 5),
1 line insertion (step 40), 1 line deletion (step 41), all deletion (step 42), area input (step 43), printing (step 44), copy processing (step 45), and system termination (step 47) Any of these can be edited. Here, in copying, the start address and end address displayed in the “master reference” column in the screen of FIG. 4 are directly copied to the “master designation” and “slave designation” columns, respectively. In this process, the same addresses as those in the "master reference" column are designated in the "master designation" and "slave designation" columns.
This simplifies the input work and facilitates the editing work.

In addition, the above-mentioned one-line insertion is a process of inserting one blank space into the line with the cursor, and the above-mentioned one-line deletion is one line with the cursor.
This is a process of deleting lines (however, the values in the "Master reference" column are not deleted), and the above all deletions are performed in the "Master designation" and "Slave designation" columns other than the "Master reference" column values. This is the process of deleting all values. Furthermore, for the above area input, by pressing the return key after inputting the area number within the area input frame of the screen display in FIG.
This is a process of displaying 15 recorded areas from the input area number. That is, although 120 recorded areas can be stored at maximum as described above, only 15 recorded areas can be displayed at maximum on the screen of FIG. 4, so by inputting a desired value by the above area input, It enables the display of 15 recorded areas including numbers. The above-mentioned printing is for printing data on the screen of FIG.

As shown in FIG. 4, the display screen on the monitor TV 29 has five or more recorded areas on the master optical disk 26 when a continuous recorded track group of the master optical disk 26 is used as one information recording area (recorded area). It is assumed that the recording start track address (start address) and the recording end track address (end address) of each recorded area are displayed in the “START” and “END” columns of the “master reference”. .

The editor sees this display and uses the cursor keys, ten keys and function keys in the editing process of steps 38 to 44 in FIG. 5 to select the editing function of steps 39 to 44 as shown in FIG. As you can see, "Master designation""STAR
Enter the start address of the recorded area you want to copy on the master optical disk 26 in the "T" field, enter the end address of the recorded area of the master optical disk 26 in the "END" field, and click "START" in "Slave designation". Enter the start address of the copy destination of the slave optical disk 27 in the field. When the start address of the slave optical disk 27 is input, the personal computer 20 automatically calculates the end address and displays it in the "END" column of "Slave designation".

Here, as shown in FIG. 4, among the recorded areas No. 1 to No. 5 of the master optical disk 26, a part of the area No. 1 and the whole area No. 2 and a part of the area No. 3 are recorded. The recording information signal is continuously recorded from the first track address "1" to "1754" of the slave optical disc 27, and the entire recording information signal of the area No. 5 is recorded from the address 2000 of the slave optical disc 27 to 2500.
It is specified that the address is recorded. Also, the recorded information signal of recorded area No. 3 is not recorded, the recorded information signal of recorded area No. 4 is divided into two, and the recorded information signals of addresses 3104 to 3199 are removed. Is specified in.

In this way, it is possible to specify that the portion of the master optical disc 26, which has been arbitrarily edited from the recorded information, is to be recorded at an arbitrary track position of the slave optical disc 27. When such editing work is completed, the process proceeds to step 45 in FIG.
Editing recording (copying) is performed on the slave optical disc 27.

This copy processing is to perform processing according to the flowchart of FIG. In FIG. 9, first, an address search is performed until the designated address of the master optical disk 26 and the master designated start address match (step 7
1, 72), and then an address search is performed until the present address of the slave optical disk 27 and the slave-specified start address match (steps 73, 74), and if they match, the reproduction information signal of the master optical disk 26 is sent to the slave optical disk 27. Start recording (step 75).

During the above recording (copying), the master optical disc
It is judged whether or not copying is completed based on whether the 26 present addresses match the master designated end address (step 7).
6) If it matches, the copy is terminated (step 7
7) The process moves to step 46 in FIG. 5 to display to the editor whether or not the system is terminated. When the editor inputs Y, the system is terminated (step 47), and N is input to copy the recorded areas thereafter. Processing is performed (step 45).

Thus, when the edit copy is selected, even if the number of recorded areas on the master optical disk 26 is 121 or more, only the start addresses and end addresses of the recorded areas from the beginning to 120 are stored in, for example, the memory in the system controller 81. It is stored in the master optical disc
The time for searching the 26 recorded areas can be made shorter than searching the entire area of the master optical disk 26, and the storage capacity of the memory need not be increased more than necessary.

When there are 121 or more recorded areas on the master optical disk 26, a message asking whether to continue copying the data by the area number currently searched on the screen of the monitor TV 29 when the copy processing in step 45 of FIG. 5 is completed. Is displayed, and when the editor inputs N, the master optical disk 26 is searched for up to the address obtained by adding “1” to the end address of the last area (area number 120) of the previously stored area. The recording / reproducing device 22 is controlled, the counter and the memory are cleared, and the search process of step 37 shown in FIG. 5 is restarted for the tracks after the address-searched track position.

When the editor selects automatic copy in step 32 of FIG. 5 described above, the process proceeds to step 33, and after performing the process of searching the entire recorded area of the master optical disk 26 according to the flowchart of FIG. The copying process is performed (step 34), and the system is terminated when all the tracks are finished (steps 35 and 36).

Here, in FIG. 10, the same processing steps as those in FIG. 6 are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 10, after the address storage processing of step 55 or 57, it is judged whether or not the total number of recording tracks of the master optical disk 26, "54000", has been reached (step 65). Returning to 53, if it has reached, the process is terminated (step 66). As a result, the recording pattern of the slave optical disc 27 becomes exactly the same as that of the master optical disc 26.

As described above, according to the present invention, the number of addresses to be searched and stored (the number of information recording areas) at the time of searching for the start address and the end address of the information recording area of the master information recording medium.
Since the limit is set in, the search time can be shortened compared to the case of searching all the information recording areas of the master information recording medium having many information recording areas, and the editing can be started quickly, Further, it has a feature that the storage capacity of the storage means is small.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, FIG. 3 is a block diagram of an embodiment of the main part in FIG. 2, and FIG. FIG. 5 is a diagram showing an example of a display screen of the main part of the figure, FIG. 5 is a flowchart for explaining the operation of the main part of FIG. 2, and FIGS. 6 to 10 are for explaining the subroutine of FIG. 5 or FIG. 6, respectively. It is a flowchart. 11 ... Master information recording medium, 12 ... Slave information recording medium, 13 ... Reproducing means, 14 ... Address detecting / storing means, 15 ... Designating means, 16 ... Recording control means, 17 ... Operation control means , 20 …… Personal computer, 22,23 ……
Disc recording / reproducing device, 26 ... Master optical disc, 27
...... Slave optical disk, 29 …… Monitor TV.

Claims (1)

[Claims] 1. A reproducing means for reproducing a recording information signal of a master information recording medium formed by mixing recorded tracks and unrecorded tracks, and the master information recording based on an output reproduction signal of the reproducing means. An address detection for detecting a start address and an end address of each of a continuous recorded track group of recorded tracks of the medium as an information recording area only within a predetermined number range and storing the detected addresses. Storage means and designating means for designating the start address and end address of an arbitrary information recording area among the start addresses and end addresses of one or more information recording areas stored in the address detection / storage means And the reproduction track position of the master information recording medium by the reproducing means based on the address of the information recording area specified by the specifying means. And a recording control means for recording the reproduction information signal of the designated information recording area extracted from the reproduction means on a slave information recording medium consisting of only unrecorded tracks, and the information recording of the master information recording medium. When the number of start addresses and end addresses of the area is greater than or equal to the predetermined number, the reproduction means of the master information recording medium by the reproduction means reproduces each of the information recording areas having start addresses and end addresses after the predetermined number. An information signal editing apparatus comprising: an operation control unit for controlling a reproduction track position and for operating the address detecting / storing unit again.