JPS63127484A - Synchronous sound recording device - Google Patents

Abstract

PURPOSE:To prevent the wasteful consumption of a magnetic tape at the time of the exchange of a disk by generating a pause signal when the reproducing of a prescribed music is finished, and at the same time, generating a pause release signal when a program search for the next music is performed. CONSTITUTION:When the disk number of a CD which is reproduced till now, and the disk number of the CD to be reproduced next are different, a nonconformity signal generated from a second comparing means 32 is supplied to a pulse signal generation circuit 33, and a pulse signal is generated from the circuit 33. This pulse signal is supplied to an operation key control circuit and acts as the pause signal and makes a tape into a recording paused state. Afterwards, when a conformity between the absolute elapsed time of the head of the music and the absolute elapsed time of a subcoding signal recorded in the CD, is detected by a first comparing means 27, because a conformity signal is generated from the means 27, the pulse signal is again generated from the circuit 33. This signal acts as the pause release signal and makes the tape recorder into a recording state. Thus, the wasteful consumption of the magnetic tape during the exchange of the disk is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention is directed to a disc player that stores a plurality of discs in a storage section and that automatically changes the disc to be played by converting the playback signal from the autochanger device of the disc player. The present invention relates to a synchronized recording device that records data with a tape recorder according to the operation of an auto-change-route device.

(b) Conventional technology In recent years, CD players that use optical pickups to optically read out CDs (compact discs), which have protrusions that can be called bits that correspond to digital signals that serve as music information, formed on the signal surface have become popular. . The CD player has good frequency characteristics, dynamic range, S/N ratio, etc., and has much better characteristics than conventional analog players, is easy to handle, and is small with a diameter of 12 em, so it has recently become popular. It has become the mainstream source device for stereo sets. In addition to music information, the CD records information called a subcoding signal, which is composed of 8 channels of P-W channels, and one block is completed at a cycle of 1/75 seconds when the CD is finished playing. Among them, the Pf Cancel contains position index information indicating the beginning of the song, and the Q channel includes position index information indicating the absolute elapsed time from the start point of the signal track, the elapsed time for each song, the song number, etc. Therefore, the CD player can easily locate the beginning of a predetermined song. For this reason, many CD players are equipped with a random access function that allows program playback in which track numbers on a disc are specified and the songs are played in the specified order.

By the way, recently, as shown in Japanese Patent Application Laid-Open No. 60-234450, a CD player that takes advantage of the small size of the disc and stores a plurality of CDs in a storage section and automatically changes the CD to be played has been developed. Autogoo-anger devices are known. The autochanger device includes:
In addition to specifying the song number, the autochanger device is equipped with a random access function that allows specifying the CD number, that is, the disk number of the CD whose address is set according to the storage position in the storage section. It is convenient because desired songs can be played continuously without changing CDs manually, and continuous playback can be performed for a long time.

On the other hand, a synchronized recording device is known that switches a tape recorder between a recording state and a recording pause state in conjunction with the operation of a CD player. Such a synchronized recording device, for example, puts the tape recorder in a recording pause state in advance, and when the CD player is operated to play a CD, the recording pause is released and the tape recorder goes into the recording state. When the playback of the CD is finished and the playback state of the CD player is released, the tape recorder is placed in a recording pause state and recording is stopped. For that reason,
The tape recorder can be put into the recording state at the same time as the CD player is playing, without having to manually operate the CD player's playback operation and the tape recorder's recording pause release operation at the same time. The magnetic tape begins to run before the player starts playing, and the magnetic tape is not wasted.

(c) Problems to be Solved by the Invention However, if the above-mentioned synchronized recording device is installed in the autochanger device without any modifications, the tape recorder will maintain the recording state even during the no-signal period when changing CDs.
This results in unnecessary consumption of magnetic tape, and the non-signal portion between songs recorded on the magnetic tape becomes very long.

The present invention aims to provide a synchronized recording device made in view of the above-mentioned points.

(D) Means for Solving Problems The present invention provides a disc comparing means that compares whether or not the next designated song is a disc with a different disc number when the designated music piece finishes playing, and the disc comparing means. pause signal generating means for generating a pause signal for placing the tape recorder in a recording state into a recording pause state when it is detected that the next designated song is on a disc with a different disc number; and pause release signal generating means for generating a pause release signal for bringing the tape recorder, which has been put into a recording pause state, into a recording state when the beginning of a specified song is found by the access means. be.

(*) Effect The present invention puts the tape recorder, which has been put into the recording state by the pause signal generating means, into the recording pause state when the disc comparison means detects that the next designated song is on a disc with a different disc number. It also generates a pause signal to bring the tape recorder, which has been put into the recording pause state, into the recording state when the access means locates the beginning of the specified song. During a no-signal period when a disc is being changed in the CD changer device, the tape recorder that was in the recording state is placed in a recording pause state, and when the CD change is completed and playback of a predetermined song begins, recording is started. The pause is released and the tape recorder is put into recording mode.

(Go) Embodiment FIG. 1 is a block diagram showing an embodiment of the present invention, (1)
is a light for projecting a light beam onto a CD, receiving the reflected light reflected from the signal surface of the CD, and performing focusing control to converge the light beam on the signal surface of the CD and tracking control to follow the signal track of the CD. an optical pickup having a sensor; (2) a reproducing circuit that reproduces a signal recorded on a CD as an audio signal using a signal picked up by the optical pickup (1); (3) a reproducing circuit (3);
2), which reproduces a clock for digitally processing the signal picked up by the optical pickup (1) and performs digital processing based on the clock to generate information signals (music information) and frame synchronization. Demodulate the signal, subcoding signal, and signal for error correction/detection,
Thereafter, a signal processing circuit (4) that performs signal error correction is supplied with the sub-coding signal detected by the signal processing circuit (3), and the position index information (absolute elapsed time , elapsed time for each song, song number, index, etc.) on a display (5) and controls various operations in response to operation of operation keys (6) consisting of key switches; (7)
is the optical pickup (1) according to a tracking control signal obtained from the optical sensor of the optical pickup (1) and a control signal from the microcomputer (4).
(8) is a pickup drive circuit that moves the irradiation point of the light beam; (8) is a plurality of CDs stored in a storage section (not shown);
(9) is a disk exchange mechanism for selectively pulling out the CD, transporting the pulled-out CD to be mounted on the turntable, and transporting the CD mounted on the turntable to be returned to the storage section; ), a disk exchange control circuit (10) controls the operation of the disk exchange mechanism (8) according to instructions from the playback circuit (
2) is a recording circuit that records the playback signal of the played CD onto a magnetic tape (not shown); (11) is an operation key control that generates a control signal in response to the operation of an operation key (12) consisting of a key switch; circuit, (13) a tape drive mechanism that drives the magnetic tape, and (14) a drive control that controls the operation of the tape drive mechanism (13) in accordance with control signals generated from the operation key control circuit (11); The optical pickup (1), playback circuit (2), microcomputer (4), pickup drive circuit (7), disc exchange mechanism (8), and disc exchange control circuit (9) are used in a CD player (viewer). The recording circuit (
10), operation key control circuit (11), tape drive mechanism (
13> and a drive control circuit (14) are provided in a tape recorder.

The CD player (su) and the tape recorder (a) are connected to an audio output terminal (17) of the CD player (ear) connected to an output end of the playback circuit (2) and a recording circuit <10>. The audio input terminal (18) of the tape recorder (Takumi) is connected to the input terminal of the CD player (Takumi), and the control output terminal ( 19) and the control input terminal (20) of the cheap recorder (20) into which control information of the operation key control circuit (11) is inputted are connected by cords (21) and (22>, respectively).

Incidentally, a program as shown in the flowchart of FIG. 2 is written in the microcomputer (4). To explain the above program, first, the operation key (6)
When a predetermined CD stored in the storage section is selected, the microcomputer (4) sends a control signal to the disc exchange control circuit (9) to move the predetermined CD to a playback position where the CD is played. supply Therefore, the disk exchange mechanism (8) is controlled by the disk exchange control circuit (9).
) is driven, and the predetermined CD is transferred to the playback position (step ①). Then, the turntable (not shown)
Since the CD transferred to the playback position is mounted on the turntable, the predetermined CD is rotated at a predetermined speed. Then, the optical pickup (1) is focused to converge the light beam generated from the optical pickup (1) onto the signal surface of the CD so that the signal recorded on the CD can be read by the optical pickup (1), Data on the start time of each picture of the CD (a value indicating what number of songs starts from what minute, second, and frame), data indicating how many songs are recorded on the CD, and data on the last time of the last song. '-The lead-in area of the CD in which the evening is recorded is read (step ■), and the process proceeds to step ■. If the song number to be played is specified by the operation key (6), access is made to locate the beginning of the song according to the song number based on the data read from the lead-in area by the playback operation, and the song is played back. If the number is not specified, the first song is accessed (step ■). When the song is accessed, the microcomputer (4) then sends a pause release signal to release the pause of the tape recorder (耶) that has been put into the recording pause state and put the tape recorder (茶) into the recording state. Then, in step (2), it is determined whether the number of the song being played has changed. In step ■, if YES, proceed to step ■ to determine whether program playback is in progress to play only the songs specified by the operation key (6) in the specified order, and if No, return to step ■ and play. Step (2) is repeated until the song number of the currently played song changes, that is, until the song being played ends. When the song being played ends, step ■ is executed, and step ■ determines that program playback is in progress, proceed to step ■ to determine whether the next song to be played is from the same disc, and step ■ If it is determined that program playback is not in progress, that is, normal playback is being performed, the process proceeds to step (3) in which it is determined whether or not the playback of the disc has ended, that is, the last song of the CD being played has ended. If it is determined in step (2) that the next song to be played is recorded on a different disc, or if it is determined in step (2) that playback of the disc has been completed, the process proceeds to step >, a pause signal is generated to pause the tape recorder (1p) that has been put into the recording state and bring the tape recorder (1p) into the recording pause state.

On the other hand, if it is determined in step ■ that the next song to be played is recorded on the same disc, or if it is determined in step ■ that the disc has not finished playing, the process returns to step ■. return.

After step (2) has been executed, the next step is to stop the rotation of the turntable, stop the rotation of the CD that has been playing until now (step 0), place the CD in the designated storage position of the storage section (take out the CD, (step 0).

After that, when program playback is being performed, it is determined whether all the specified songs have been played, and when normal playback is being performed, it is necessary to determine whether all the CDs stored in the storage section have been played. Q) If it is detected that all playbacks have finished, then this program is finished, and if it is detected that all playbacks are not yet finished, the process returns to step ■ and this program is executed again. be done.

Next, the control system for generating the pause release signal in step (2) and the control system for generating the pause signal in step (2) in the flowchart of FIG. 2 of the program of the microcomputer (4) will be explained in detail.

The microcomputer (4), as shown in FIG. A memory (23) into which data indicating music selection information such as etc.) is written, and a target address register (23) which temporarily stores data read out from the memory (23).
24) and the absolute elapsed time of the beginning of the song with the song number based on the information recorded in the CD track-in area according to the song number data indicating the song number stored in the target address register (24). A conversion address register (25) that converts into data and stores it, and a signal processing circuit (3) that converts it into data and stores it.
) of the sub-coding signal detected by the sub-code detecting means (26), absolute elapsed time data obtained from the channel and the conversion address register (25).
a first comparing means (27) for comparing the absolute elapsed time data stored in the first comparing means (27); and when the first comparing means (27) detects that the two data do not match, the conversion address register; The program that searches with the absolute elapsed time stored in (25) as the target has been executed,
Search control means (28) that supplies a control signal according to the program to the pickup drive circuit (7), and song number data obtained from the Q channel of the sub-coding signal detected by the sub-code detection means (26). a track number change detection means (29) which detects a change in the track number change and generates an output signal at the time of detection; an address counter (30) whose count value is incremented one by one according to the count value and which transfers the data stored at the address of the memory (23) to the target address register (24) according to the count value; and a disk exchange control circuit. A reproduction disk number register (31) to which the data of the target address register (24) is transferred when (9) finishes controlling the operation of the disk exchange mechanism (8) (shown in FIG. 1), and the reproduction disk Number register (31)
The data indicating the disk number in the data written in the target address register (24) are compared with the data indicating the disk number in the data stored in the target address register (24).
a second comparing means (32) that generates a signal to operate the disk exchange control circuit (9) when it is detected that the two data do not match; Pulse signal generating means (33) that generates a pulse signal when it is detected that the data do not match, or when it is detected that two data that can be compared by the first comparing means (27) match.
It is equipped with

Incidentally, the translation address register (25), the first comparison means (27) and the search control means (28) constitute an access means (3A). Further, in FIG. 3, the same circuits as those in FIG. 1 are given the same figure numbers.

In addition, the tape recorder is a logic type, with operation keys (12
) is electrically processed by the operation key control circuit (11), the operation key control circuit (11) generates a control signal corresponding to the operation of the operation key (12), and the drive control circuit (14) By generating a drive signal according to the control signal from the recording, playback and erasing head, a tape drive mechanism (13) such as a pinch roller is driven using a drive source such as a motor or a plunger. The operation key control circuit (11) generates a pulse signal from a pulse signal generation circuit (33) of the microcomputer (4) of the CD player (long) when the tape recorder (su) is in a recording state or a recording pause state. Each time a pulse signal is input, the recording state is changed to a recording pause state, or the recording pause state is converted to a recording state.

Next, with reference to FIGS. 1 and 3, a case will be described in which a playback signal from a CD player (first base) is synchronized and recorded by a tape recorder (base).

First, press the operating keys (6) to select the disc number that indicates the storage position of the CD on which the song you want to record is stored in, and the track number that indicates the number of the song on the CD.
Specify by operating. In this case, if there are multiple songs you want to record, perform program playback and repeat the above operations.

Next, put the tape recorder into recording pause mode. In this case, this is done by operating the operation key (12), but when the operation key (12) is used to enter the recording pause state, the operation key control circuit (11)
generates a control signal, so that the tape drive mechanism (13) causes a recording/erasing head (not shown) to protrude and come into contact with the magnetic tape, and a pinch roller (not shown) to move away from the magnetic tape to stop the magnetic tape from running. is in a stopped state, and the recording circuit (10) is in a state in which the input signal can be completely supplied to the recording head.

After setting the tape recorder (tai) to the recording pause state, next press C.
Operate the operation key (6) of the D player to start playback on the CD player. Here, the disk number and track number specified in advance are stored as data in the memory (23) in the specified order, so the microcomputer (4) stores them at the first address of the memory (23>). A control signal corresponding to the data of the disc number specified, that is, the data of the first specified disc number is generated, and the control signal is supplied to the disc exchange control circuit (9).
After the CD is pulled out from the storage section by the disc exchange mechanism (8) and transferred to the playback position, rotation of the CD is started and a light beam is completely projected from the optical pickup (1).

Therefore, the optical pickup (1)
The signal recorded on the CD is picked up and playback of the CD is started. When playback of the CD is started and the lead-in area of the CD is read, a search is then performed for the first designated track number. In this case, the address counter (30) operates in response to the playback operation of the CD player (long), and the initial value "1" of the address counter (30) is stored at the first address of the memory (23). The data, that is, the data of the first specified disc number and track number, has been transferred to the target address register (24), and the data has been converted by the conversion address register (25) based on the information in the lead-in area. Data of the absolute elapsed time of the beginning of the song of the song number is stored. On the other hand, optical pickup (1)
The signal recorded on the CD is picked up by the reproducing circuit (2)
The sub-coding signal recorded on the CD is detected by the sub-code detecting means (26) of the signal processing circuit (3). Therefore, the first comparison means (27) compares the absolute elapsed time data of the conversion address register (25) with the absolute elapsed time data of the sub-coding signal, and the search control means (28) The first comparison means (27) operates until a coincidence output is generated when the two data match, so that the data stored in the target address register 24 by the pickup drive circuit (7) The optical pickup (1) remains driven until the beginning of the song corresponding to the song number is reached.Therefore, the playback of the song with the first designated song number is started.

When the CD player (su) starts playing, the signals recorded on the CD are picked up by the optical pickup (1) and reproduced by the playback circuit (2), so they are sent to the audio output terminal (
17) outputs an audio signal corresponding to the signal, and the audio signal is supplied to the recording circuit (10) of the tape recorder (16) via the cord (21>) and the audio input terminal (18).

By the way, the coincidence output generated from the first comparing means (27>) is supplied to the pulse signal generating circuit (33).The pulse signal generating circuit (33) is connected to the first comparing means (27).
), it generates a pulse signal, which is supplied to the control output terminal (19) and is transmitted via the cord (22) and the control input terminal (20) to the tape recorder ( The control circuit (11) is supplied to the operation key control circuit (11). Therefore, the pulse signal acts as a pause release signal, cancels the recording pause of the tape recorder that has been in the recording pause state, and puts the tape recorder in the recording state. Therefore, the running of the magnetic tape is started, and recording of the audio signal of the CD played by the long CD player onto the magnetic tape is started.

As the playback of the CD player progresses and eventually the playback of the first specified song number is completed, the subcode detection means (
The song number change detection means (29) detects that the song number has changed using the sub-coding signal obtained from 26). When the song number change detection means (29) detects that the song number of the song being played has changed, it generates an output signal, so that the address counter (30) counts up by one. The data stored in the second address of (23) (the data of the second specified disc number and track number) is transferred to the target address register (24).Here, the target address register (24) The data of the first specified disc number and track number stored in the playback disc number register (3) will be stored in the playback disc number register (3) when the operation control of the disc exchange mechanism (8) is completed.
1), the second comparison means (32) compares the disc number of the CD that has been played so far with the disc number of the CD to be played next. If the two disk numbers are the same, the second comparison means (32) does not generate a control signal, and neither the pulse signal generation circuit (33) nor the disk exchange control circuit (9) operates. and,
Only the search for the song number of the song to be played is performed using the absolute elapsed time of the beginning of the song according to the song number data stored in the conversion address register (25) and the absolute elapsed time of the sub-coding signal recorded on the CD in the same way as described above. time and the first comparison means (27
).

On the other hand, if the disc number of the CD that has been played so far differs from the disc number of the next CD to be played, a control signal corresponding to the disc number to be played next is sent from the second comparing means (32) to the disc exchange control circuit. (9). Therefore, the CD that has been played until now is returned to a predetermined storage position in the storage section by the disk exchange mechanism (8), and the CD with the aforementioned disk number is pulled out from the storage section and transported to the playback position. Then, playback of the CD with the disc number is started, and a search for the song number is performed.

Further, if the disc number of the CD that has been played so far differs from the disc number of the CD that will be played next, a mismatch signal generated from the second comparison means (32) is supplied to the pulse signal generation circuit (33). , the pulse signal generation circuit (33
) generates a pulse signal. Therefore, the pulse signal is supplied to the operation key control circuit (11), acts as a pause signal, and pauses the tape recorder (Takumi), which has been in the recording state, to put the tape recorder (Takumi) into the recording pause state. Make it.

After that, the search for the song number is completed, and the absolute elapsed time of the beginning of the song and the absolute elapsed time of the sub-coding signals that have been completely recorded on the CD are calculated according to the song number data stored in the conversion address register (25). When the first comparing means (27) detects that the first comparing means (27) match, the first comparing means (27)
), a pulse signal is generated again from the pulse signal generation circuit (33), and this time, the pulse signal acts as a pause release signal, and the tape recorder (Y), which has been in the recording pause state, into recording mode. Then, each time the playback of the song with the song number specified by the operation key (6) of the CD player (long) is completed, the count value of the address counter (30) is incremented by one, and the target value is stored from the memory (23). Since the data transferred to the address register (24) changes sequentially and the data transferred from the target address register (24> to the playback disc number register (31) changes sequentially, the specified track number can be played back. The above-mentioned operation is repeated each time the song is finished.Therefore, as shown in Figure 4 (a) to (c), when a disc is replaced, a pulse that acts as a pause signal is generated when the playback of a song is finished. Since the pulse signal generating circuit (33) generates a pulse signal that acts as a pause release signal when the next song is started, the next song is started after the playback of a predetermined song is finished. The tape recorder is in a recording pause state until the beginning of the recording.Therefore, the tape recorder stops running the magnetic tape while the disk is being replaced.

(g) Effects of the Invention As described above, the present invention provides an advantage when a pause signal is generated when the playback of a predetermined song is completed and the beginning of the next song is started when a disc is replaced. Since the pause release signal is generated at the same time, there is an advantage that the magnetic tape is not wasted while the disk is being replaced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flowchart for explaining its operation, and FIG. 3 is a block diagram showing details of the microcomputer shown in FIG.
4A to 4C are timing diagrams showing the relationship between the generation of the pause release signal and pause signal in FIG. 1 and the recording and recording pause state of the tape recorder. Explanation of main figure numbers (15) - CD player, (16)...Tape recorder, (24)...Target address register, (3
1)...Playback disc number register, (32)...
・Second comparison means, (33)...pulse signal generation circuit,
(34)...Access means. Applicant Sanyo Electric Co., Ltd. and one other agent Patent attorney Takuji Nishino and one other person Figure 3 Figure 4

Claims (1)

[Claims] (1) When multiple discs are stored in the storage unit, the disc to be played can be automatically replaced, and the disc number and track number on the disc can be specified according to the storage position in the storage unit. In a synchronized recording device that uses a tape recorder to record the playback signal from the autochanger device of a disc player with a random access function that can play back songs in a specified order, when the playback of each specified song ends, the next A disk comparing means for comparing whether a specified song is on a disk with a different disk number, and a recording state is set when the disk comparing means detects that the next specified song is on a disk with a different disk number. pause signal generating means for generating a pause signal for placing the tape recorder in a recording pause state; access means for locating the beginning of a specified song; and access means for locating the beginning of the specified song. 1. A synchronized recording apparatus comprising: pause release signal generating means for generating a pause release signal for bringing the tape recorder, which has been put into a recording pause state, into a recording state when the recording pause is performed.