JPH01149279A - Digital tape recorder - Google Patents

Abstract

PURPOSE:To simplify a work by recording a second time priority ID=0 when a program number (PNO)-ID is post-recorded, continuously recording a first time program number, recording a priority ID=1 and after that, recording a second time priority ID=0. CONSTITUTION:When the PNO-ID or the priority ID is moved or rewritten, tape quantity corresponding to the second time is wound back by a system controller 18 at a constant speed traveling time and the second time priority ID=0 is recorded. Continuously, the first time program number is recorded and the priority ID=1 is recorded. After that, the second time priority ID=0 is recorded. Accordingly, the tape position to post-record the PNO-ID or the priority ID or sub code information concerning the music number before the post-recording before and after the tape position goes to be ineffective and the work to execute a re-recording in advance is eliminated. Thus, the work can be simplified.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is directed to determining whether or not a program number ID indicating the program order is valid or not on a tape on which a main signal such as music has already been digitized and recorded. subcodes such as priority IDs that indicate
The present invention relates to a digital tape recorder. below,
Write the program number ID as PNO-]:D, and
- Recording only the ID and priority ID is referred to as dubbing.

BACKGROUND OF THE INVENTION In recent years, digital tape recorders have been equipped with information about the main signal, such as a subcode indicating the track number, etc., at the same time as the main signal.
Alternatively, devices that can record while reproducing the main signal have been put into practical use. - An example is a rotary head digital audio tape recorder (hereinafter referred to as R-DAT).

The following is about conventional digital tape recorders.

This will be explained using R-DAT as an example. FIG. 2 is a schematic diagram of a signal recorded on tape. FIG. 6 is a diagram showing the relationship between the main signal and subcode. 6 in the PCI area in Figure 2.
If the main signal (playback signal) shown in Figure B is recorded,
PNO-ID and priority ID related to the reproduced signal are recorded in subcode areas at both ends of the CM area. As shown in Fig. 6, the tape on which the playback signal, PNO-ID, and priority ID are recorded is
When you select a song using PNO-ID, it will recognize that it is the desired nth song using PNO-ID, and select PNO-ID using priority ID.
In order to confirm the validity of the ID, you can directly cue the desired song accurately.

In addition, in order to make it possible to rewrite PNO-4D in a short time and to ensure that the PNO-ID can be recognized accurately even during high-speed searches, consumer R-DAT uses a star to indicate the beginning of a song.
Only about 9 seconds, which is the time to record the ID at the beginning of the song, is the
Record the signal indicating the song number in the ID, and use PNO-I for other
Some devices record Omumu, a signal indicating that D is unavailable. Furthermore, there is one in which priority ID=1 indicating that the PNO-ID is valid is recorded only during the time when the start ID is recorded.

The case where the PNO-ID is post-recorded using the R-DAT described above will be explained using FIGS. 7 and 8.

In FIG. 7, a is the main signal from which the nth song begins at time t. b is a PNO-4D before dubbing, and a signal indicating the first song is recorded for about 9 seconds from time t2 to time t4.
Omumu is recorded indicating that O-4D is unavailable. Further, while a signal indicating the first song as PNO-ID is being recorded, priority=1 is being recorded.

In order to accurately locate the beginning of a tape recorded in this way, PNO-ID indicating n songs from time t, and PNO-
Priority I indicating that the ID is valid])=
1, the PNO-ID and priority ID shown in d and e of FIG. 7 are recorded on the tape. Therefore, although it is possible to accurately locate the beginning of n songs from the forward direction, there is a problem in that after time t, it is mistaken as the first song.

Next, in FIG. 8, a is the main signal where the j-curve starts from time t2. b is the PNO-ID before dubbing. A signal indicating the first song is recorded for about 9 seconds from time t1 to time t. PNO-ID is used before time t1 and after time t3. 0 people are recorded indicating that they cannot do it. Furthermore, while a signal whose PNO-ID indicates the first song is being recorded, priority ID=1 is being recorded. In order to accurately locate the beginning of the tape recorded in this way, the PNO indicating that it is the jth track is set from time t2.
-More! :, PNO-ID When priority ID=1 indicating that the signal is valid is dubbed, the PNO-ID and priority ID after dubbing become as shown in d and e of FIG. 8.

Therefore, in the R-DAT that can display song numbers, there is a problem in that the first song, which is a meaningful song number, is displayed from time t to time t2. Furthermore, the music selection operation is performed solely by reading the PNO-ID when the priority ID changes from 0 to 1, and the 9R-DAT has a problem in that it is not possible to select the jth song.

Problems to be Solved by the Invention With the conventional R-DAT described above, when PNO-4D and Priority In are rewritten to a track that has shifted by a small amount of time or a different track number, the system cannot locate the beginning accurately. , there were problems such as incorrect track numbers being displayed. Therefore R
- The DAT user searches for the tape position where the PNO-ID and priority ID are recorded, and the PNO-ID before and after it.
Check whether the ID is recorded and enter the PNO-I
If D is recorded, record the Om person to indicate that the PNO-ID is not available, or record Priority ID = O to indicate that the PNO-ID is not valid, and record the song before dubbing. It is necessary to re-record the subcode so that the number information becomes invalid. As a result, the tape position moves, so PNO-XD and priority I are set again.
There is a problem in that the R-I)AT user is forced to perform the troublesome work of starting dubbing after searching for the tape position where D is to be recorded.

The present invention has been made in view of the above problems, and the R-DAT
When dubbing PNO-XD or 7"Lio') f-ID, R-D can simplify the user's work.
It provides AT.

Means for Solving the Problems In order to solve the above problems, the R-DAT of the present invention includes:
Priority x indicating that the PNO-ID is valid
Priority ID control means for controlling =o from priority indicating that D=1t or PNO-ID is invalid; and first time generation means for setting a time for recording PNO-ID and priority XD:1. , a second time generating means for setting the time to record priority ID=0, and when dubbing PNO-ID, PNO-I
Record the time set by the first time generating means, PNO-ID and priority ID=1 from the tape position where dubbing of D starts, and record the time set by the second time generating means before and after that, the priority XD. This system is equipped with a system controller that controls the recording of =0.

According to the above-described configuration, when the PNO-ID or priority In is rewritten to a different song number after a slight movement, the present invention first rewinds the tape amount corresponding to the second time while running at a constant speed. Second time priority I
To record D=O, then record the first time program number and priority ID=1, and then record the second time priority XD=O.
The serve code information regarding the tape position where the PNO-4D or priority ID is dubbed and the song number before and after the dubbing is invalidated. Therefore, it is no longer necessary for the R-DAT user to re-record subcodes related to song numbers in advance so that they become invalid.

EXAMPLE Hereinafter, an R-DAT according to an example of the present invention will be explained with reference to the drawings.

FIG. 1 is a configuration diagram of R-DAT in one embodiment of the present invention. In FIG. 1, 1 is an input terminal.

2 is a preamplifier, 3 is a digital converter, and 4 is a PCI encoder that performs interleave processing to change the temporal arrangement of digital signals, adds an error correction code, etc., and creates a PGM signal to be recorded in the PGM area shown in Figure 2. , 6 is PN
6 is a mixer that mixes the PcM signal and the subcode signal. .

7 is a recording amplifier, and 8 is a switch for switching between recording and reproduction. During recording, the head 9 is connected to the output terminal of the recording amplifier, and during playback, the head 9 is connected to the input terminal of the playback amplifier 11. During dubbing of the subcode, the head 9 records while tracing the subcode area. A system controller 18 is connected to the output terminal of the amplifier 7 and to the input terminal of the reproduction amplifier 11 while tracing the PGM area.
controlled by 9 is a head mounted on the cylinder of the mechanism, 1o is a tape recorded in the pattern shown in Figure 2, 11 is a playback amplifier, 12 is a separator that separates the POM signal and subcode signal, 13 is a PCjM signal, 14 is a 0-person converter, 15 is a line amplifier, 16 is an output terminal, and 17 is a subcode signal separated by the separator 12. P.N.
This is a subcode decoder that obtains signals such as O-XD.

Reference numeral 18 denotes a system controller that controls the entire R-D control, and the main internal components will be described later. Reference numeral 19 is a program number setting section for setting the song number to be recorded in the subcode area, and is comprised of a 1o key switch, a counter for counting pulses between songs, and the like. 2o is an after-recording switch for commanding the start of after-recording of PNO-ID and priority I), and the program number setting section 19 and the after-recording switch 2o are connected to the system controller 18. A mechanism controller 21 controls the mechanism 22 in response to commands from the system controller 18. A mechanism 22 drives the tape 1o.

The head 9 records the signal on the tape 1o, and the tape 1
Regenerate the signal from 0.

23 is a program number ID control unit which receives the output signal of the program number setting unit 19 and creates a PNO-ID.
t'6! ! l), 24 is a priority ID control unit that outputs a priority ID indicating whether or not the PNO-ID is valid, and the output signals of the program number ID control unit 23 and the priority ID control unit 24 are sent to the subcode encoder 6. is input.

26 is a first time setting section for setting a first time for recording PNO-ID and priority ID=1;
is a second time setting unit that sets a second time for recording priority ID=o.

System controller 'j1B is 7'' program number I
It includes each main part from the D control section 23 to the second time generation section 26, and is composed of a microcomputer.

Regarding the R-DAT configured as above, the following is the first section.
The operation will be explained using FIG. 2, FIG. 3, FIG. 4, and FIG. 5.

FIG. 3 is a flowchart showing part of the processing of the system controller 18, and FIGS. 4 and 6 show the main signal (playback signal), the subcode before dubbing, the subcode after dubbing, and the time on the tape. This is a relationship diagram. In Figures 4 and 5, the playback signal shown in B and the PNO shown in c
A case will be described in which the track number information of fiPNo-ID and the recording position on the tape are changed by post-recording on a tape on which -4D and priority ID are recorded.

As shown in Fig. 4, the main signal that starts the first song from time t2 is recorded in the PGM area of Fig. 2, and as shown in Fig. 4, the PNO-ID is recorded before time t3 and after time t5. PNO-ID indicating that it is unavailable = OA person is recorded, and from time t5 to time tj, PNO-ID indicating the first song is recorded.
ID and a priority I indicating that the PNO-ID is valid from time t to time t as shown in C.
D=1 is recorded in the subcode area of FIG. When changing the song number of such a tape from time t2 to the first song, the tape position is set to time t2, the program number setting section 19 is set to the pn song, and the dubbing switch 2o is pressed. Then, the system controller 18 determines in determination step 31 in FIG. 3 that the after-flare switch 20 has been pressed, and proceeds to processing step 32.

In process step 32, system controller 18
outputs a command to the mechanism controller 21 to rewind the tape amount corresponding to the second time during constant speed running. The tape amount corresponding to the second time is the time information recorded in the subcode area of the tape or the mechanism 2
This can be obtained by calculating the number of rotations of the second reel stand. Next, in processing step 33, the priority ID control unit 24 outputs a signal to the subcode encoder 6 to record priority ID=o at a second time from time t to time t2'i. Toki, the system controller 18 becomes the mechanism controller 21,
Output a command to keep the tape at a constant speed, and proceed to judgment step 3.
4. When it is determined from the second time generating section 26 at time t2 that the second time has elapsed, the program number ID control section 23 proceeds to processing step 35, and the program number ID control section 23 determines the PNO from the output signal of the program number setting section 19. -ID
is created and output to the subcode encoder 6.

Then, in processing step 36, the priority ID
The control unit 24 outputs a signal to the subcode encoder 5 to record priority XD=1, and the process proceeds to a judgment step 37. When it is determined that the first time period has elapsed at time t4, processing proceeds to step 38, and the priority ID control unit 24 records priority ID=O during the second period from time t4 to time t6. Then, a signal is output to the subcode encoder 6. At time t6, when it is determined from the second time generation section that the second time has elapsed, the dubbing operation reaches connector B40 and completes the dubbing operation.

As a result, the PNO-ID and priority ID after dubbing become as shown in d and e in FIG. 4. The information that the PNO-ID from time t4 to time t5 is the first song before dubbing remains, but since the priority ID=O, the information that it is the fourth song is invalid, and no malfunction occurs as an R-DAT.

Next, the case of moving the PNO-ID forward will be explained.

As shown in Figure 6, the main signal that starts the first song from time t is recorded in the PCM area of Figure 2, and as shown in Figure 6, the PNO-ID before time t2 and after time t4 is PNO-ID=O which indicates that it is not available is recorded, and from time t2 to time t4''!, the PNO indicating the first song is recorded.
-, ID, and priority ID=1 indicating that the PNO-ID is valid from time t2 to time t4 as shown in C are recorded in the subcode area of FIG. When changing the song number of such a tape from time t5 to the first song, the tape position is adjusted to time t3, the program number setting section 19 is set to the 91st song, and the dubbing switch 2o is pressed. Then system controller 1
8, in judgment step 31 of FIG. 3, it is determined that the dubbing switch 2o has been pressed, and processing step 3 is performed.
2. In processing step 32, the system controller 18 outputs a command to the mechanism controller 21 to rewind the tape amount corresponding to the second time during constant speed running. The amount of tape corresponding to the second time can be obtained by calculating the time information recorded in the subcode area of the tape or the number of revolutions of the reel stand of the mechanism 22. Next, in processing step 33, the priority ID control unit 24 outputs a signal to the subcode encoder 5 so as to record priority ID=O during the second period from time t to time t3. At that time, the system controller 18 outputs a command to the mechanism controller 21 to keep the tape at a constant speed, and the process proceeds to judgment step 34.

When it is determined from the second time generation section 26 at time t3 that the second time has elapsed, the program number ID control section 23 proceeds to processing step 36, and the program number ID control section 23 determines the PNO from the output signal of the program number setting section 19. - Create an ID and output it to the subcode encoder 5. Next, in processing step 36, priority ID control section 24 outputs a signal to subcode encoder 5 to record priority ID=1, and the process proceeds to judgment step 37. time t
5, it is determined that the first time has elapsed, and the stone
At processing step 38, the priority ID control unit 2
4 outputs a signal to the subcode encoder 6 to record priority ID=o during the second period from time t5 to time t6''!.

At time t6, when it is determined from the second time generation section that the second time has elapsed, the shear recording operation is completed for connector B40.

As a result, the PNO-4D and priority ID after dubbing become as shown in d and e in FIG. 6. The information that the PNO-ID from time t2 to time t is the first song before dubbing remains, but since the priority ID=O, the information that it is the first song is invalid, and no malfunction occurs as an R-DAT.

As described above, according to this embodiment, when dubbing PNO-4D, the time PNO-ID and priority ID=1 set by the first time generating section 26 are recorded from the tape position where dubbing is started, Since the system controller 18 controls to record the time set by the second time generation unit 26 and the priority ID=o before and after that, if the time to move the PNO-ID is within the second time This eliminates the need for the R-DAT user to previously record subcodes related to song numbers so that they become invalid.

Here, the first time which is the output of the first time generator 26 is set to be equal to 9±1 seconds of the time to record the start ID indicating the beginning of the song.

It is possible to edit the PNO-ID in the same way as the start ID, and the post-recording can be done in a short time, making it very easy to use.

Also, the movement of PNO-XD due to dubbing.

When correcting the time lag until the automatic program number setting function, which detects between songs or the beginning of a song from changes in the main signal level and sets the song number, or when manually setting the program number. There may be cases where the correction is made, and generally within a few seconds.

Therefore, it is sufficient for the second time, which is the output of the second time generator 26, to be shorter than the first time, about 9 seconds.

In this embodiment, the manual dubbing switch 20 was used as an example of the command means for starting dubbing of PNO-ID, but the start I recorded at the beginning of the song was used as an example.
It may be configured to detect D and record PNO-4D.

Furthermore, the second time that is the output of the second time generating means 26 does not necessarily have to be the same time before and after the post-recording of the PNO-ID indicating the song number.

Effects of the Invention As is clear from the above embodiments, the present invention provides priority ID=1 or PNO-ID indicating that the PNO-ID is valid.
Priority ID indicating that NO-ID is invalid
Priority ID control means for controlling =O, and PNO
- a first time generating means for setting a time for recording priority ID=1; a second time generating means for setting a time for recording priority ID=o;
- When dubbing ID, record the time set by the first time generation means from the tape position where dubbing of PNO-XH starts, PNO-ID and priority ID = 1, and generate a second time before and after that. time set by means,
j5. By providing a system controller that controls to record priority ID=Q. PNO-4D
If you want to rewrite the song or priority ID to a different song number after a short time shift, first rewind the tape amount corresponding to the second time while running at a constant speed, record the second time priority ID = Q, Subsequently, after recording the first time program number and recording priority ID=1, the subcode information regarding the song number before dubbing before and after the second time broadcast becomes invalid. Therefore,
This eliminates the need for the user of a digital tape recorder to re-record subcodes related to track numbers in advance so that they become invalid. Therefore, it is possible to provide a digital tape recorder that is extremely easy to use.

[Brief explanation of the drawing]

Fig. 1 is a block configuration diagram of the R-D5T in one embodiment, Fig. 2 is a plan view showing an outline of signals recorded on a tape, and Fig. 3 is an example of processing by the system controller of this embodiment. FIG. 4, FIG. 5, FIG. 7, and FIG. 8 are waveform diagrams showing the time relationships between the playback signal and the program number ID signal and priority ID signal before and after dubbing, and FIG. is a waveform diagram showing the time relationship between the reproduced signal and the subcode. 6...Subcode encoder, 18...
・System controller, 19...Program number setting section, 20...Song Afremachi switch, 21...
... Mechanism controller, 23 ... Program number ID control section, 24 ... Priority control section, 26 ... Voice 1 time generation section, 26. Song. Second time generator. Name of agent: Patent attorney Toshio Nakao Haga 1 person No. 4
Figure 5f Tape 1's bbts t
ats ttFigure 6; 1 d, Time interval on the tape: tl t2 Figure 7 a, Playback signal: After-recording. b, iry gram number ID. 77 records ago. C, Post-recording ID' After-recording ・ d ・ Fu b Guhum number 10' f, 1 allowed when on tape: Figure 8 a, T + raw signal: Before dubbing ・ b Fu b munanbe 10 ・ After dubbing . d Full time t<10' f, on tape Ii1: U+ Kt rJ rl

Claims (1)

[Claims] an after-recording switch for recording a program number added to each program while reproducing the main signal; a program number setting means for setting the program number to be recorded; and a recording switch for recording onto tape from the output signal of the program number setting means A program ID control means that creates a program number ID, a priority ID control means that outputs 1 when the program number ID is valid and 0 when the program number is invalid, and an output signal and priority ID of the program number ID control means. a first time generation means for setting a first time for recording priority ID=1, which is an output signal of the control means; and a time for recording priority ID=0, which is an output signal of the priority ID control means. a second time generating means for setting a second time priority ID=0; when the dubbing switch is pressed, rewinding a tape amount corresponding to a second time during constant speed running and recording a second time priority ID=0;
The system controller includes a system controller that records the output signal of the first time program number ID control means and after recording the priority ID=1, controls the recording of the second time priority ID=0. digital tape recorder.