JPH076566A - Device for dubbing disk - Google Patents

Abstract

PURPOSE:To prevent erroneous erasure of information by dubbing the regenerative data of a disk player with a tape recorder and stopping the tape recorder for reverse running at the time of defecting a tape end. CONSTITUTION:When the disk player is in the state where a music is played, when the end of the magnetic tape T of the tape recorder is detected by a magnetic tape end detector RC1 or RC2 in response to the result a tape running inversion instruction V is outputted, the disk player is switched to automatic selection operation, and the music is program searched, and the player becomes a reproduction stand-by state. Then, when the tape recorder is reversed automatically and a record instruction S is outputted, the reproduction of the disk player is restarted, and the dubbing is performed. At this time, when the end of the tape T is detected by the detector RC1 or RC2, the tape recorder is controlled in a stop state. Thus, the fact that the data dubbed on the tape T previously are erased erroneously is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc dubbing device, and more specifically, when dubbing information recorded on a disc to a magnetic tape by an automatic reversing tape recorder, the magnetic tape is terminated at the end of the information. The present invention relates to a disc dubbing device which prevents a sound break due to reaching and prevents recorded information before being automatically inverted from being accidentally erased.

[0002]

2. Description of the Related Art When a song recorded on an analog disc or a digital audio disc is dubbed onto a magnetic tape by an automatic reversal tape recorder, the dubbing is interrupted when the magnetic tape reaches the end in the middle of the song, The last dubbed song is cut off (cutting the sound).

In order to prevent this interruption of sound, conventionally, the total playing time of the disk to be dubbed is confirmed in advance, and a magnetic tape having a recording time capable of coping with this is used. The recording time of the magnetic tape is represented by the sum of the recording times of the recording track (forward track) when the magnetic tape is running in the forward direction and the recording track (reverse direction track) when the magnetic tape is running in the reverse direction (of one recording track. Recording time is half the recording time displayed on the magnetic tape).

[0004]

Even if the tape recorder is an automatic reversal type tape recorder (auto reverse tape recorder) when reversing the traveling direction from the forward direction to the reverse direction (or from the reverse direction to the forward direction) during recording traveling. Since there always exists a non-recordable period of about several seconds, it is necessary to make a detailed dubbing plan in advance so as not to cause sound interruption at the time of reversal switching from one recording track to the other recording track at the end of the magnetic tape, Furthermore, it is necessary to confirm whether the dubbing is as planned.

Further, when a sound break occurs at the time of reversal switching of tracks as described above, the dubbing is once canceled, the tape recorder is set to the recording state for the other recording track, and the pickup of the disc player is cut off. It has to be located at the beginning of the song and re-dubbed, which requires complicated operations.

The present invention solves the above-mentioned drawbacks of the prior art. When dubbing from a disk to a magnetic tape, when recording is switched to the other recording track at the end of one recording track, one of the recording tracks is changed. The present invention provides a disc dubbing device which detects that a sound break has occurred in a recording track and re-records the sound break information newly from the start end of the other recording track where recording is continuously performed. .

Further, the present invention provides a disc dubbing device which prevents the recorded information before the automatic reversal from being accidentally erased in the re-recording mode for the sound interruption information.

[0008]

In order to solve the above problems, according to the present invention, there is provided a disc player having at least a cueing means for cueing information, at least a magnetic tape end detecting means and a tape running direction. In a disc dubbing device for dubbing information recorded on a disc to a magnetic tape using a tape recorder equipped with a reversing control means, when the end of the tape is detected during recording, the tape recorder side is not The tape traveling reversing control means is used to carry out the reversing traveling processing and the recording state is resumed, and the disc player side responds to the magnetic tape end detecting operation or the tape traveling direction reversing control operation to find the head. Is operated, the cue processing of the information that was being played until just before is performed, and the tape recording The reproduction operation of the disc player is started at the timing at which the tape can be re-recorded, and the tape recorder is stopped when the tape end is detected by the tape end detecting means during reverse running. It is characterized by being controlled.

[0009]

According to the present invention, as shown in FIGS. 3 and 4, when dubbing a piece of music recorded on a disk onto a magnetic tape, the magnetic tape reaches the end when the disk player is in the playing state of the piece of music. When the automatic reversing tape recorder detects that the magnetic tape end detection information or the tape running direction reversal instruction information is generated, the disc player in the playing state is switched to the automatic music selection operation, and the beginning of the tune being played is searched. When the beginning of the music is completed, the reproduction standby state is set for a predetermined time. On the other hand, on the tape recorder side, when the end of the tape is detected, the tape is automatically inverted, and when the timing for recording on the other recording track is reached, the playback standby state on the disc player side is automatically released, and the song with the sound cut out begins. Redubbing from.

When the end of the tape is detected again in the re-recording mode, the tape recorder is controlled in the stopped state. As a result, the recorded information before the automatic reversal is not accidentally erased.

[0011]

The present invention will be described below based on the illustrated embodiments.

FIG. 1 is a block diagram of a recording system path and an operation control system of an automatic reversal type tape recorder showing an embodiment of the present invention, and FIG. 2 is a block diagram of a reproduction system path and an operation control system of a disc player. is there.

The disc player used in this embodiment is for reproducing a digital audio disc.

In FIG. 1, the recording system path is a preamplifier 1,
It is composed of the recording compensation circuit 2, the recording / reproducing changeover switch SW ₁ , and the magnetic head HD, and is no different from an ordinary tape recorder.

More specifically, a bias signal supply system path, means for varying the recording compensation characteristics in accordance with the type of magnetic tape, etc. are necessary, but description thereof is omitted because it is not directly related to the present invention.

T indicates a magnetic tape, and arrows F and R indicate the traveling directions of the magnetic tape T (F ... Forward direction, R ...
(Reverse direction).

Next, the operation control system of the tape recorder will be described. CL ₁ is a controller using a microcomputer, and recording (REC) and forward reproduction (F)
R), reverse reproduction (RR), and the like, operation instructions are given to each part of the tape recorder based on operation instructions from operation buttons and detection information from each sensor that detects the operation state of each part of the tape recorder. In this embodiment, a control signal Q for controlling the opening and closing of the changeover switch SW ₁ , a control signal S for controlling the operation of other recording systems, and a control signal U for giving the tape constant speed running (recording / reproducing) to the magnetic tape drive mechanism. And a control signal V for giving an instruction to invert the tape running direction to the magnetic tape drive mechanism.

The tape recorder used in the present invention is a tape recorder of an automatic reversal type (auto reverse) in the traveling direction, and DT ₁ and DT ₂ are magnetic tape end detectors. In this embodiment, a photoelectric detection method is used and a light emitting element is used. L ₁ (DT ₁ ),
Light from L ₂ (DT ₂ ) is applied to the magnetic tape, the difference in the amount of reflected light is detected by the light receiving elements RC ₁ and RC ₂ , and the leader tape portion attached to the end portion of the magnetic tape is detected.

DT ₂ is used to detect the end of the magnetic tape when the magnetic tape is running in the reverse direction, and DT ₁ is used to detect the end of the magnetic tape when running in the forward direction of the magnetic tape.

The method of the magnetic tape end detector is not limited to the photoelectric type, but a method of detecting an increase in the tape tension at the end of the magnetic tape or the leader tape (cassette tape), and the rotation stop of the tape reel is optically or magnetically. A known method such as a detection method (cassette tape) can be used.

The detection outputs from the tape end detectors DT ₁ and DT ₂ are supplied to the tape end detection terminal of the controller CL ₁ via the OR gate OR ₁ , and if the tape recorder is in the forward recording state at this time, the controller CL _{From 1} , the control signal V for reversing the tape running direction is output.

At the same time, a control signal V for reversing the traveling direction is output at the time of forward recording, or a control signal P indicating that the end of the tape has been detected is issued to the controller CL.
Output from ₁ . The control signal P is supplied to the input terminal P.IN of the disc player, which will be described later, from the output terminal P.OUT.

Next, the disc player shown in FIG. 2 will be described.

D is a digital audio disk, 1
Reference numeral 1 denotes an optical pickup including an optical lens 12.
The digital signal obtained from the pickup 11 is supplied to the digital signal processing circuit 13 to be subjected to error correction, time base correction and demodulation, and at the same time, an index indicating the contents recorded on the disc contained in the digital signal, the song number (what The information indicating whether the tune is the tune) and the sub-code indicating the time code etc. corresponding to the playing position are separated, and the obtained digital audio signal is D / A.
It is converted into an analog signal by the converter 14 and is output from the audio output terminal AUDIOOUT through the preamplifier 15.

CL ₂ is a controller using a microcomputer for controlling the operation of the disc player, which is a cue in the pickup return direction of the disc [music selection] (B • MS), a cue in the pickup playing direction (F. MS), playback (PLAY), and other operation buttons, and operation information is given to each part of the player based on detection information from each sensor that detects the operation state of each part of the disc player.

In the present embodiment, the controller CL ₂ detects a clock from the digital signal from the pickup 11 and supplies this clock to the digital signal processing circuit 13, and at the same time, a control signal DS for disc rotation control instruction and each music selection operation. A control signal MS for instructing a music selection operation obtained by operating the buttons (F / MS, B / MS) is output.

In the music selection mechanism in this embodiment, when the music selection button B / MS is operated during the performance, the music being played is cued, and when the music selection button F / MS is operated, the next music is cued. Is configured.

Next, a control signal P obtained from the tape recorder shown in FIG. 1 is input to the control signal input terminal P.IN. The control signal P is supplied to one input of the OR gate OR ₂ , and the music input operation button B · MS is input to the other input.
Is supplied, and the OR output is supplied to the controller CL ₂ . Therefore, when the control signal P is input, the same operation (cueing operation) as the operation of the music selection operation button B / MS is performed.

Reference numeral 16 is a focus control circuit for controlling the focus of the pickup 11, 17 is a tracking control circuit for the pickup 11, and 18 is a disk rotation speed control circuit. A motor for rotating the disk D is instructed by the controller CL _2. M is always controlled to the optimum speed.

The configuration is as described above. Next, the operation will be described with reference to the flow charts shown in FIGS.

First, for disc dubbing, the play button (PLAY) is operated to put the disc player into a playing state. On the tape recorder side, the recording button (REC) and the forward or reverse playback buttons (FR, RR) are operated to enter the recording state. By this series of dubbing operations, a recording signal output terminal (not shown) such as an output terminal AUDIO OUT (FIG. 2) of the disc player or an amplifier
Recording signal input terminal REC / I of the tape recorder
A reproduced audio signal is supplied to N (FIG. 1) and is recorded (dubbed) on the magnetic tape T.

FIG. 3 shows an operation flowchart of the tape recorder at the time of dubbing. At the time of dubbing, the controller CL ₁ first confirms whether the magnetic tape running direction is the forward direction or the reverse direction (steps 31 and 32).

When the traveling direction of the magnetic tape is the forward direction, when the magnetic tape reaches its end and the end is detected by the photoelectric detector DT ₁ (step 33), the obtained end detection information is the controller CL ₁ The controller CL ₁ outputs the control signal V indicating the tape traveling direction reversal instruction based on the arrival of this information and the control signal P indicating that the tape end detection or the tape traveling direction reversal instruction has been given. (Step 34).

This control signal P is a control signal output terminal P · O.
It is input to the control input terminal P.IN of the disc player via the UT.

When it is determined that the magnetic tape is running in the reverse direction and the end of the magnetic tape is detected, the recording operation is canceled and the running of the magnetic tape is stopped (step 3).
5, 36).

As described above, the reason why reverse recording is not performed even when the end of the tape is detected during backward running is
This is to prevent the information already recorded from being accidentally erased.

On the other hand, as shown in FIG. 4, on the disc player side, when the performance state (reproduction state) is in the middle (whether or not the music is being performed is included in the sub-code obtained from the digital signal processing circuit 13). Judgment is made by arithmetically processing the index by the controller CL _2. Steps 41 and 42), the control signal P receives the B / MS input terminal of the controller CL ₂ via the OR gate OR ₂ (terminal for receiving a music selection command in the return direction). ) (Step 43), the controller CL ₂ outputs a control signal MS for instructing the selection of a song in the return direction, and the tracking control circuit 17 causes the pickup 11 to move to the head position of the song being played (start position of the song). A music selection operation is performed to return to (step 44).

That is, when the disk player is playing the middle of a piece of music, the tape recorder during dubbing recording sends the magnetic tape end detection information when the tape is running in the forward direction or the tape running direction reversal information at the end of the magnetic tape. When issued, the disc player automatically finds the beginning of the tune to be played.

The disc player after returning to the beginning of the music returns to the playing state again, but this replay timing is adjusted to the rerecordable timing of the tape recorder, and after that timing, rerecording in the reverse direction is performed. Is executed.

When it is judged in step 42 that the music is not being played, it is judged whether or not all the music have been played (step 45). The return operation is performed (step 46).

The cueing operation in the digital audio disc player is almost instantaneously performed.

On the other hand, on the tape recorder side, for example, as in the present embodiment, it is determined that the magnetic tape has ended by detecting that it has moved from the recordable portion (magnetic material portion) of the magnetic tape to the leader tape portion (non-recordable). Therefore, if the reversing operation is performed, the reversing operation is performed almost at the same time as the detection of the leader tape portion. Therefore, the magnetic head can be brought into contact with the magnetic material portion by only slightly winding the tape from the end of the reversing operation. That is, the time from reversing operation to re-recording is extremely short.

On the other hand, when the method of detecting the increase of the tape tension or the method of detecting the rotation stop of the reel is adopted as the tape end detecting means, the reversing operation is not started until the leader tape is completely wound up. Therefore, since the leader tape must be wound up after the reversing operation, it takes some time (approximately the leader tape winding time) before the magnetic material portion appears again.

Therefore, the reproduction start timing of the disc player is delayed by a predetermined time in order to make the reproduction start timing after the cue of the disc player coincide with the rerecording start timing of the tape recorder, that is, the control signal P.
The disc player is put in the playback standby state by issuing a playback standby signal (pause signal) for a predetermined time after the start
After a predetermined time, the playing state is automatically restored again.

Since the tape recorder continues to record in the reverse direction by the automatic reversing operation, after a predetermined time elapses, recording can be performed again from the beginning of the music on the recording track in that direction. The predetermined time here is determined by the characteristics of the traveling direction reversal control means of the mechanism of the tape recorder used in the product, the electrical characteristics of the product, and the like.

In addition to the pause signal, the control signal P itself may be used as a means for starting reproduction, and the arrival of the control signal P at the controller CL ₂ may be delayed by a predetermined time.

In the analog disc player, since it takes time to select music, it may be possible to delay the reverse recording start of the tape recorder.

In any case, the cue playback start time of the disc player and the recordable time of the tape recorder should be at least coincident with each other so as not to cause information loss at the start of dubbing, in order to increase the certainty. In this case, the recordable time of the tape recorder may be slightly earlier than the cue reproduction start time of the disc player.

When such a dubbing process is performed, since a part of the music is recorded as it is on the tape end side, there is no silent section of the tape. When the entire song cannot be recorded, it may be possible to erase the song and create a silent section at the end of the tape. However, this makes it unclear to the user how long the silent section is. I have no clue what to do. This is not preferable because it gives the user a feeling of anxiety. In addition, there is a problem in that erasing processing is required to create a silent section, and it takes a long time for dubbing.

In the present invention, since the silent section corresponds to the leader tape, when the boundary between the magnetic tape and the leader tape is detected and the reversal control is performed immediately, the reversing process is performed immediately in the silent section and the last song is heard from the beginning. You can This eliminates the user's annoyance and discomfort caused by continuing to hear silence. The dubbing time can also be shortened.

[0051]

According to the present invention, when the information recorded on the disk is dubbed onto the magnetic tape, recording is performed on either the forward or backward recording track of the magnetic tape and the end of the magnetic tape is reached. If the disc player is in the middle of playing the information, the music selection device of the disc player is operated to cue the information during the reproduction so that the other recording track can be recorded from the beginning of the information again. Therefore, it is possible to perform dubbing without any loss of information due to sound interruption.

Further, when performing dubbing as in the present invention, since a part of the music remains on the tape end side as it is, the music is reversed immediately in the silent section (leader tape portion) and the music can be heard from the beginning. . When the above-mentioned part of the song is erased, it is not possible to confirm when the tape ends because of this silent section. Therefore, the user is irritated and uncomfortable. In addition, creating a silent section requires a erasing process to make the sound silent, which causes a problem of spending dubbing time. The present invention can eliminate these problems.

Even when the tape end is detected by detecting the tape tension or the like, since the running is reversed immediately after the winding of the leader tape is completed, the silent section is only the section for reproducing the leader tape, The silent section can be minimized.

Further, in the present invention, the tape recorder is controlled so as to stop when the end of the tape is detected after the automatic reversal, so that the recording operation by re-reversal is not performed. As a result, the information recorded before the automatic inversion is not erased by mistake. This improves the dubbing accuracy.

[Brief description of drawings]

FIG. 1 is a block diagram showing a recording system and an operation control system of a tape recorder showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a reproduction system and an operation control system of the disc player.

FIG. 3 is a flow chart diagram for explaining the operation of the tape recorder shown in FIG.

FIG. 4 is a flow chart diagram for explaining the operation of the disc player shown in FIG.

[Explanation of symbols]

1 preamplifier 2 recording compensation circuit CL ₁ , CL ₂ controller RC ₁ , RC ₂ magnetic tape end detector REC recording button FR forward playback button

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G11B 19/02 501 Q 7525-5D

Claims (1)

[Claims] 1. A disc player using at least a cueing device for cueing information, and a tape recorder having at least a magnetic tape edge detecting device and a tape running direction reversing control device. In the disc dubbing device for dubbing the recorded information to the magnetic tape, when the end of the tape is detected during recording, the tape recorder reversing processing is performed using the tape traveling reversing control means. In the recording state again, in the disc player side, the cueing means operates in response to the magnetic tape end detection operation or the tape running direction reversal control operation, and the cueing of the information that was being reproduced until immediately before is performed. When the processing has been performed and the tape recorder is ready to re-record, the disc player A disk dubbing device, characterized in that the tape recorder is controlled so as to be in a stopped state when the tape end is detected by the tape end detecting means during reverse running when the reproducing operation is started.