JPH05120848A - Recording control device in recording and reproducing machine - Google Patents

Abstract

(57) [Summary] [Purpose] For example, in R-DAT, a program (playing song) in the middle of a recorded tape is replaced with a new program without failure. [Structure] In the recording mode, a space between programs (played music) applied to the input terminal 1 is detected, and the recording circuit 5 records the start ID in the subcode area of the tape 7. When the program in the middle of the recorded tape is replaced with a new program, the time T between the start IDs is measured in advance, and the recording of the new program is started from the start ID, for example, when the time T is about to elapse. , The recording operation is stopped at the next start ID while fading out the end of the new program.
Therefore, it is possible to eliminate the failure of erasing the head of the next program that has already been recorded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording control device in a recording / reproducing device such as an R-DAT (rotary head type digital audio tape recorder).

[0002]

2. Description of the Related Art A part of a program (musical piece) of a recorded magnetic tape (hereinafter referred to as tape) recorded by a recording / reproducing apparatus such as R-DAT is replaced with another new program (musical piece). In such a case, the operator must first remember, for example, the tape counter value relating to the head position of the original program to be replaced and the end position of the program. Then, while looking at the tape counter value, it is necessary to find the position of the head, perform recording operation from this position of the head, and perform an operation such as performing fade-out by operating the input volume immediately before the end position that is remembered. There is.

Such an operation is very troublesome, and if, for example, the user has overlooked the end position, he / she will fail to erase the head of the next program already recorded.

On the other hand, in the R-DAT, a so-called sub-code signal can be recorded, and the sub-code signal can be used to operate a function such as high-speed song number search. A control ID is included in a part of the subcode signal. In the control ID, a start ID (hereinafter referred to as ST-ID) for indicating the beginning of a program (musical piece) or an unnecessary portion of the tape. Shortening ID (hereinafter SH
-Referred to as ID) and the like are recorded in the sub data area on the tape.

The ST-ID is recorded in a sub-data area on the tape corresponding to the beginning of each song over about 300 frames. In the recording / reproducing apparatus equipped with the automatic recording function of this ST-ID, the sub-data is detected by detecting the interval between songs (silent period is several seconds) in the recording signal and using the beginning of the following sound period as the song head. The ST-ID is automatically recorded in the area. Also, the ST-ID can be recorded in the sub data area at an arbitrary position by the manual recording function.

Also, the SH-ID is arbitrarily recorded by the user at the beginning of the reproduction unnecessary portion. This SH-ID is also recorded in the sub data area on the tape for about 33 frames. Therefore, during playback of the song, the SH-ID
When R-DAT is detected, the R-DAT is automatically fast-forwarded, and the next ST-ID is recorded and the reproduction is resumed.

[0007]

By the way, using the program search function of the R-DAT as described above, a program (playing music) in the middle of a tape that has been recorded is replaced with another new program (playing music). If you try, the ST-ID of the program in the middle of the recorded tape
The tape is stopped at the part that detected, and this part can be used as the recording start position of another program, so the operator performs a manual operation such as checking the tape counter value to find the recording start position of the tape. The need goes away.

However, after the recording of the program to be replaced is started, the tape counter is always checked and an operation such as fading out is performed by operating the input volume immediately before the end position of the program which is remembered. It is necessary to make a mistake, for example, if the user has overlooked the end position, the head of the next program which has already been recorded will be erased.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a recording control device capable of exchanging a series of programs that have already been recorded with different programs without failure. I am trying.

[0010]

According to another aspect of the present invention, there is provided a recording control device for a recording / reproducing apparatus, which detects a reproduction time of a signal for each program recorded on a recording medium. When the new program signal is recorded at the signal recording position of the predetermined program on the recording medium and the recording of the new program requires a time longer than the reproduction time detected by the reproduction time detecting means. Recording means for adding a fade-out to the recording signal to stop the recording.

According to another aspect of the present invention, there is provided a recording control device in a recording / reproducing apparatus, comprising: a reproduction time detecting means for detecting a reproduction time of a signal for each program recorded on a recording medium. When recording a new program signal at a signal recording position of a predetermined program on a recording medium, if the recording of the new program is completed within the reproduction time detected by the reproduction time detecting means, then on the recording medium corresponding to the end position. And recording means for recording a control signal for instructing fast-forwarding of the recording medium.

According to another aspect of the present invention, there is provided a recording control device in a recording / reproducing apparatus, which comprises a reproduction time detecting means for detecting a reproduction time of a signal for each program recorded on a recording medium. When recording a new program signal at a signal recording position of a specific program on a recording medium, if the recording of the new program exceeds the reproduction time detected by the reproduction time detecting means, a fade-out is added to the recording signal. When recording the new program signal at the signal recording position of the specific program of the recording medium and the first recording means for stopping the recording, the recording of the new program is completed within the reproduction time detected by the reproduction time detecting means. Second recording means for recording a control signal for instructing fast-forwarding of the recording medium on the recording medium corresponding to the end position. It has a feature in the points.

[0013]

According to the recording control device of the recording / reproducing apparatus of the present invention, when the original part of the program recorded on the tape is replaced with the new program, the recording / reproducing time of the new program remains unchanged. If the recording / playback time of the program is exceeded, the recording signal of the new program is automatically faded out and recording is stopped.

Further, according to the recording control device in the recording / reproducing apparatus of the second aspect, when the recording / reproducing time of the new program is shorter than the recording / reproducing time of the original program, new recording is automatically performed. A control signal (SH-ID) for instructing fast-forwarding of the tape is recorded at the position of the tape corresponding to the end position of the recording signal of the program.

Further, according to the recording control device in the recording / reproducing apparatus of the third aspect, after the fade-out, SH-
The ID signal is recorded.

As a result, it is possible to eliminate the failure of erasing the head of the next program which has already been recorded. If the recording / playback time of the new program ends before the recording / playback time of the original program ends, the SH-ID is automatically recorded, so during playback, fast forward to the beginning of the next program. Since the mode is set, the discomfort that the rest of the original program is suddenly played is eliminated.

[0017]

The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 is a block diagram showing an example of a recording control device in a recording / reproducing apparatus of the present invention, which is an example of R-DAT.

In FIG. 1, reference numeral 1 is an audio signal input terminal. The audio signal applied to the input terminal 1 is applied to an A / D converter 2 and converted into a digital signal. The digital signal converted by the A / D converter 2 is applied to the signal processing circuit 4 to which the signal processing RAM 3 is connected. The digital signal applied to the signal processing circuit 4 is subjected to processing such as addition of an error correction code and modulation using the signal processing RAM 3, and the digital signal subjected to the above-mentioned signal processing is the recording circuit 5 Applied to. The recording circuit 5 equalizes and amplifies the digital signal and supplies it to the rotary head 6, and the rotary head 6 records the digital signal on the magnetic tape 7.

On the other hand, the reproduction signal read by the rotary head 7 is applied to the reproduction circuit 8, and the reproduction circuit 8
The signal is amplified and equalized by and is applied to the signal processing circuit 3 to which the RAM 4 is connected. Signal processing circuit 3
The reproduction signal applied to is subjected to processing such as error correction and interpolation, and applied to the D / A converter 9. The reproduced signal demodulated into an analog signal by the D / A converter 9 is output to the output terminal 10.

On the other hand, the subcode signal separated by the signal processing circuit 5 is applied to the control unit 11 which is composed of, for example, a microcomputer. The control unit 11 is connected to a key input unit 12 that gives various operation commands such as recording, playing, rewinding, fast-forwarding, and stopping of the tape 7. The command signal input by the key input unit 12 is It is applied to the signal processing circuit 3 and the recording circuit 5. Further, the inter-track detection section 13 is connected to the input terminal 1. The inter-track detection section 13 detects the level of the input signal, and the state where the input signal is below the predetermined level is for a predetermined time (for example, 2 seconds) or more. When continuing, a control output indicating the inter-track state is generated, and this control output is applied to the control unit 3.

In the above configuration, the key input section 12
By operating the record, play, rewind, fast forward, and stop buttons (neither of which are shown), the recording / playback device is selected to a recording mode, a playback mode, a rewind mode, a fast forward mode, and a stop mode, respectively. ..

In the recording mode, the audio signal applied to the input terminal 1 is sequentially recorded on the tape 7 by the rotary head 6. At this time, the audio signal applied to the input terminal 1 is also applied to the inter-track detection section 13, and the inter-track detection section 13 detects the inter-track interval when the state of the input audio signal is below a predetermined level for a predetermined time or longer. A control output indicating the state is generated for the control unit 11. In response to this, the control unit 11 receives the recording circuit 5
A subcode write command is issued to the tape 7
The ST-ID is recorded in the sub-code area of each for every tune. As a result, the ST-ID is sequentially recorded in the subcode area of the tape 7 at the head position of each program.

The operation of replacing a part of the original program recorded on the tape 7 with a new program will be described with reference to FIGS. 2 and 3. That is, FIG. 2 shows an operation flow of the control unit 11 composed of a microcomputer, and FIG. 3 is a timing chart showing a recording timing of a signal on the tape 7.

First, FIG. 3 (A) shows the recording status of the program on the tape 7, and it is assumed that the N-1th program, the Nth program, and the N + 1th program are sequentially recorded. In such a recording state, as described above, in the subcode area of the tape 7, ST-IDs are sequentially recorded at the head position of each program as shown in FIG. Here, when the N-th program is to be replaced with a new program, an additional recording key (not shown) in the key input unit 12 is operated (step 20) as shown in the flowchart of FIG. As a result, the ST-ID of the Nth music piece is searched from the subcode area of the tape 7 (step 21), and the control section 11 stores the absolute time (ABS time) of that portion. Subsequently, the ST-ID of the N + 1th song is searched from the subcode area of the tape 7 (step 22), and the ABS of that portion is searched.
The control unit 11 stores the time. Then, the control unit 11 calculates the reproduction time (T) of the Nth music piece from the two ABS times (step 23). These steps 21 to 2
3 constitutes a reproduction time detecting means.

Following this, the tape is rewound and in the rec pose state at the beginning of the ST-ID of the Nth song (step 2).
4) and wait. It is determined whether or not a start key (not shown) in the key input unit 12 is operated (step 25). When the start key is operated (step 25), additional recording is started on the N-th song ( Step 26) is performed. Note that FIG. 3C shows the situation where additional recording has started.

At the same time when the additional recording is started, the control unit 1
1 monitors the progress of the recording time (T-a) based on the ABS time (step 27). The time (a) of the recording time of (T-a) is the fade-out section (x) at the end of the additionally recordable program as shown in FIG.
And the mute section (y), for example, x is 10
Seconds and y are set to about 3 seconds.

When it is determined in step 27 that (Ta) has elapsed, the control unit 11 causes the signal processing circuit 3 to operate.
A control signal is sent to, and the fade-out (step 28) work of the additional signal provided by the A / D converter 2 is performed for 10 seconds, and subsequently, a mute section of 3 seconds is formed. .. Then, the drive of the tape 7 is stopped (step 29).

The flow of steps 27 to 29 is the reproduction of the recording of the new program detected by the reproduction time detecting means when recording the new program signal at the signal recording position of the specific program on the tape 7 as the recording medium. An example of the operation of the first recording means for stopping the recording by adding a fade-out to the recording signal when a time longer than the time elapses is shown.

In step 27, (T-
When the control output indicating the inter-track state is sent from the inter-track detection section 13 to the control section 11 before the step a) has elapsed,
It is judged that the input music of the new program to be rewritten is completed (step 30), and the control unit 11 causes the recording circuit 5 to finish.
A subcode write command is issued to the tape 7
As shown in FIG. 3D, SH-
The ID is recorded (step 31), the process proceeds to step 29, and the drive of the tape 7 is stopped.

The flow of steps 30, 31 and 29 is such that when a new program signal is recorded at the signal recording position of a specific program on the tape 7 as a recording medium, the recording of the new program is detected by the reproduction time detecting means. 9 shows an example of the operation of the second recording means for recording the control signal for instructing the fast-forwarding of the recording medium on the recording medium corresponding to the end position when the reproduction is finished within the reproduction time.

The above description is based on the case where the present invention is applied to R-DAT, but the use of the present invention is not limited to such a specific one, and for example, a subcode can be written. In addition, the present invention can be applied to audio equipment such as so-called VHS and 8 mm VTR, or fixed head type DAT.

[0032]

As described above, according to the recording control device in the recording / reproducing apparatus of the first aspect, when a part of the original program recorded on the tape is replaced with a new program, a new program is created. When the recording / playback time of the program is about to exceed the recording / playback time of the original program, the fade-out is automatically added to the recording signal of the new program and the recording is stopped.

Further, according to the recording control device in the recording / reproducing apparatus of the second aspect, when the recording / reproducing time of the new program is shorter than the recording / reproducing time of the original program, new recording is automatically performed. A control signal (SH-ID) for instructing fast-forwarding of the tape is recorded at the position of the tape corresponding to the end position of the recording signal of the program.

According to the recording control device in the recording / reproducing apparatus of the third aspect, after the fade-out, the SH-
The ID signal is recorded.

As a result, it becomes possible to eliminate the failure of erasing the head of the next program which has already been recorded as in the conventional case. If the recording / playback time of the new program ends before the recording / playback time of the original program ends, the SH-ID is automatically recorded, so during playback, fast forward to the beginning of the next program. Since the mode is set, the discomfort that the rest of the original program is suddenly played is eliminated.

[Brief description of drawings]

FIG. 1 illustrates a recording control device in a recording / reproducing apparatus of the present invention,
FIG. 6 is a block diagram showing an example of the case applied to DAT.

FIG. 2 is a flowchart showing an operation flow in the embodiment shown in FIG.

FIG. 3 is a timing chart for explaining a recording state on a tape in the embodiment shown in FIG.

[Explanation of symbols]

 1 Input Terminal 2 A / D Converter 3 Signal Processing Circuit 4 Signal Processing RAM 5 Recording Circuit 6 Rotary Head 7 Recording Medium (Magnetic Tape) 8 Playback Circuit 9 D / A Converter 10 Output Terminal 11 Controller 12 Key Input Section 13 Track interval detector

Claims (3)

[Claims] 1. A reproduction time detecting means for detecting a reproduction time of a signal for each program recorded on a recording medium, and a new program when recording a new program signal at a signal recording position of a predetermined program on the recording medium. Recording control device in a recording / reproducing apparatus, comprising: recording means for adding a fade-out to a recording signal to stop the recording when the recording requires a time longer than the reproduction time detected by the reproduction time detecting means. .. 2. A reproduction time detecting means for detecting a reproduction time of a signal for each program recorded on a recording medium, and a new program when recording a new program signal at a signal recording position of a predetermined program on the recording medium. Recording means for recording a control signal for instructing fast-forwarding of the recording medium on the recording medium corresponding to the end position when the recording of the recording medium ends within the reproduction time detected by the reproduction time detecting means. Recording control device in a recording / playback device. 3. A reproduction time detecting means for detecting a reproduction time of a signal for each program recorded on a recording medium, and a new program when recording a new program signal at a signal recording position of a predetermined program on the recording medium. Recording means for stopping the recording by adding a fade-out to the recording signal when the recording requires a time longer than the reproduction time detected by the reproduction time detecting means, and a signal of a predetermined program of the recording medium. When recording the new program signal at the recording position, if the recording of the new program is completed within the reproduction time detected by the reproduction time detecting means, an instruction to fast-forward the recording medium on the recording medium corresponding to the end position is given. And a second recording means for recording a control signal for controlling the recording control apparatus in the recording / reproducing apparatus.