JP3022146B2 - Composite recording / playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite audio apparatus including a compact disk (CD) player, an analog cassette tape recorder, a mini disk (MD) recorder, and the like.

[0002]

2. Description of the Related Art Hitherto, there have been known various composite audio devices including a CD player and a cassette tape recorder, such as a CD radio cassette player and a mini component player.

In such a composite audio device,
When recording an audio signal from a CD player to a cassette tape recorder, since the cassette tape recorder is a device for reciprocal recording / reproduction, when the cassette tape recorder reverses from the A side to the B side, various methods [for example, music If the song fades out at the end or reaches the end of the side A (tape end) in the middle of the song, reverse the song to the side B and then record the interrupted song again from the beginning of the side B) Has been proposed.

[0004]

However, in a composite audio apparatus including an MD recorder in addition to a CD player and a cassette tape recorder, a CD player is reproduced, and a reproduced audio signal is converted to a cassette tape recorder and an MD recorder. When recording at the same time, since the recording unit of the MD recorder is a cluster, if the playback of the CD player is paused when the cassette tape recorder reverses from the A side to the B side, the data of the MD recorder is succeeded. May not be.

[0005]

According to the present invention, there is provided a compact disk reproducing apparatus for reproducing a compact disk, and a reverse type cassette for recording and reproducing an analog audio signal on and from a cassette tape. In a composite recording / reproducing apparatus having a tape recording / reproducing apparatus and a mini-disc recording / reproducing apparatus for recording and reproducing an audio signal digitally on and from a magneto-optical disc, the reproduction signal of the compact disc in the compact disc reproducing apparatus is During the recording operation on the cassette tape of the cassette tape recording / reproducing apparatus and the magneto-optical disk of the mini-disc recording / reproducing apparatus, when the cassette tape recording / reproducing apparatus performs the reverse operation, the head of the track currently being reproduced by the compact disc reproducing apparatus. While in the playback pause state in the section, The mini disc recording / reproducing apparatus is set to a recording pause state to record from a cluster address next to a recording start address of a recording area of a track currently being recorded, and after the reverse operation of the cassette tape recording / reproducing apparatus is completed. It is another object of the present invention to provide a composite recording / reproducing apparatus provided with control means for resuming the reproduction of the compact disc reproducing apparatus and the recording of the mini disc recording / reproducing apparatus.

[0006]

With the above construction, the reproduction signal from the compact disk reproducing device is recorded simultaneously by the cassette tape recording and reproducing device and the mini disk recording and reproducing device, and after the reverse operation of the cassette tape recording and reproducing device,
The compact disc playback device resumes playback from the beginning of the track that was playing before the cassette tape recording and playback device reverse operation, and the mini disc recording and playback device recorded the track that was playing before the cassette tape recording and playback device reverse operation. The recording is restarted from the cluster address next to the recording start address of the area where is recorded.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a circuit block diagram showing a configuration of a composite recording / reproducing apparatus to which the present invention is applied. As shown in this figure, the apparatus comprises a CD block composed of a CD player, a CT block composed of an analog cassette tape recorder, and an MD block composed of an MD recorder.

Next, the configuration of each block will be described in detail.

In the MD block, 1 is a digital signal input terminal for inputting a digital audio signal and various control signals, 2 is an analog signal input terminal for inputting an analog audio signal, and 3 is the analog signal input terminal. An A / D conversion circuit 22 for converting an analog audio signal input from 2 into a digital signal; 22 is an input signal for switching between a digital signal input from the digital signal input terminal 1 and a digital signal sent from a CD block A changeover switch circuit 4 is an ATRAC processing circuit that compresses the digital signal input through the input signal changeover switch circuit 22 and converts it into a highly efficient coded digital signal, and 5 is a signal output from the ATRAC processing circuit 4. Interleave, add error correction code, and add subcode signal A digital signal processing circuit 6 for converting into a digital signal is a recording RF amplifier, which converts the signal output from the digital signal processing circuit 5 into a signal for recording on the magneto-optical disk 13 by the recording magnetic head 14. ing.

Reference numeral 7 denotes a shock-proof memory circuit for temporarily storing compressed digital signals, and reference numeral 15 denotes an MD laser pickup for heating the surface of the magneto-optical disk 13 to the Curie temperature during recording and reading pit signals during reproduction. . Reference numeral 8 denotes a reproduction RF for amplifying a signal read from the MD laser pickup 15 during reproduction.
An ADIP demodulation circuit 9 including an amplifier, a digital signal processing circuit 9 for performing processing such as error correction on a signal output from the ADIP demodulation circuit 8, and a digital signal processing circuit 10 for expanding the signal processed by the digital signal processing circuit 9. , An ATRAC processing circuit for returning to the original digital signal.
A D / A conversion circuit for converting the digital signal processed by the C processing circuit 10 into an original analog audio signal, and an analog signal output terminal 12 for outputting the audio signal converted into the analog signal.

Further, reference numeral 17 denotes a spindle motor for rotating the magneto-optical disk 13, 16 denotes a thread motor for driving the MD laser pickup 15 to the inner and outer circumferences of the magneto-optical disk 13, and 18 denotes the spindle motor 17. And a motor control circuit for controlling the thread motor 16.

And 19 is an M for controlling the MD block.
In the D control circuit, the MD control circuit 19 controls a motor control circuit 18 for controlling the spindle motor 17 and the sled motor 16 and a key input terminal 20.
The control and processing of the mechanism and the like and the processing of the subcode data are performed based on the input information from the input terminal 21 and the mechanical switch input terminal 21 and the like, and the ATRAC circuit 4, digital signal processing circuit 5, memory circuit 7, digital signal processing circuit 9 , ATRAC circuit 10 and the like.

Next, the CD block will be described in detail. In FIG. 1, reference numeral 32 denotes a CD laser pickup for reading a pit signal from the compact disk 31, reference numeral 36 denotes a reproduction RF amplifier for amplifying a signal read from the CD laser pickup 32, and reference numeral 37 denotes an output signal from the reproduction RF amplifier 36. A digital signal processing circuit for performing processing such as error correction; 38, a D / A conversion circuit for converting the digital signal processed by the digital signal processing circuit 37 into an original analog signal; 39, a D / A conversion circuit An analog signal output terminal for outputting the analog audio signal converted at 38.

The reference numeral 34 denotes the compact disk 31.
Is a thread motor for driving the CD laser pickup 32 to the inner and outer circumferences of the compact disc 31, and 35 is a motor control circuit for controlling the spindle motor 34 and the sled motor 33.

Then, 40 is a C for controlling the CD block.
In the D control circuit, the CD control circuit 40 controls a motor control circuit 35 for controlling the spindle motor 34 and the thread motor 33, and a key input terminal 41.
It controls and processes the mechanism and the like and processes the subcode data based on input information from the input terminal 42 and the mechanical switch input terminal 42, and controls the digital signal processing circuit 37.

Further, the CT block will be described in detail. In FIG. 1, reference numeral 51 denotes an analog signal input terminal to which an analog audio signal is input, and 64 denotes an input for switching between an analog audio signal input from the analog signal input terminal 51 and an analog audio signal sent from the CD block. A signal changeover switch circuit 52 is a recording amplifier for converting a signal to be recorded on a magnetic tape of an analog cassette tape 56 by a recording / reproducing magnetic head 55. Is an analog signal output terminal that outputs an analog audio signal output from the reproduction amplifier 53.

Reference numeral 57 denotes a capstan motor, 58 denotes a reel motor, 59 denotes a reel motor control circuit for controlling the reel motor 58, and 60 denotes a capstan motor control circuit for controlling the capstan motor 57.

And 61 is a C for controlling the CT block.
In the T control circuit, the CT control circuit 61 controls each of the motor control circuits and controls and processes a mechanism and the like based on information from a key input terminal 62, a mechanical switch input terminal 63, and the like.

The MD control circuit 19, CD control circuit 40 and CT control circuit 61 are constituted by a system controller using a microcomputer.

Next, the operation of the above-described device will be described in detail.

First, in the CD block shown in FIG.
The CD laser pickup 32 emits light, focuses on the reflection surface of the compact disk 31, and focuses on the disk surface. Then, the spindle motor 34 is rotated, and the spindle servo is applied according to the EFM signal.
At this time, tracking servo and thread servo are also applied by the sub-beam of the CD laser pickup 32. The signal recorded by the CD laser pickup 32 is read, sent to a reproduction RF amplifier 36, further processed by a digital signal processing circuit 37 such as error correction and deinterleaving, and processed by a D / A conversion circuit 38. The signal is converted into a signal and output from the analog signal output terminal 39.

At this time, the digital audio signal output from the digital signal processing circuit 37 of the CD block is M
Sent to the input signal changeover switch circuit 22 of the D block,
It is sent to the ATRAC processing circuit 4. When the MD block is set to the recording mode, the MD laser pickup 15 emits light under the control of the MD control circuit 19, focuses on the reflection surface of the magneto-optical disk 13, and focuses on the disk surface. Further, in the magneto-optical disk 13 to be recorded, the recording area is formed into a spiral groove, and undulating waving at a sampling frequency (Fs = 44.1 KHz) is applied.
The DIP signal is demodulated. And the spindle motor 17
Is rotated, and spindle servo is applied by the EFM signal or the ADIP signal. Further, a tracking servo and a thread servo are applied by the sub-beam of the MD laser pickup 15.

Thereafter, based on the ADIP address, M
The magneto-optical disk is heated to the Curie temperature by the D laser pickup 15, and recording is performed by the recording magnetic head 14. The digital signal to be recorded is input from the CD block to the ATRAC processing circuit 3,
Here, the signal is compressed, the signal is interleaved by the digital signal processing circuit 4, an error correction code is added, the time is controlled by the memory circuit 6 for shock proof, and the address information to be recorded generated by the MD control circuit 19 is recorded. After adding the subcode information, the subcode information is sent to the RF recording amplifier 5 and recorded on the magneto-optical disk 13.

On the other hand, the output signal of the D / A conversion circuit 38 of the CD block is guided to the input signal changeover switch circuit 64 of the CT block and sent to the recording amplifier 52. When the CT block is set to the recording mode, the capstan motor 57,
By controlling the reel motor 58, the recording / reproducing magnetic head 55 is brought into contact with the magnetic tape of the cassette tape 56 to record an audio signal.

As described above, recording is performed simultaneously from the compact disk to the cassette tape and the mini disk based on the control of the control circuit of each block.

Normally, since the cassette tape recorder performs reciprocal recording and reproduction, recording and reproduction are temporarily interrupted to reverse the tape running direction and to reverse the recording and reproduction magnetic head in the middle (tape end). Because of one-way reproduction, it is possible to reproduce without interruption.
For this reason, when recording from a CD player to a cassette tape recorder, the cassette tape
A certain amount of time is spent when reversing to a surface, and the CD player is controlled to pause and wait for it. Further, as described above, when the music piece is reversed in the middle of a certain music piece, various editing methods are adopted, such as starting recording on the B side from the beginning of the music piece (broken music piece). .

The MD recorder records a data signal on a magneto-optical disk by magneto-optical recording. The recording surface of the MD signal has a spiral webbing.
An address signal called DIP is recorded, and recording is performed in cluster units based on this address.
Therefore, when the CD player and the MD recorder are paused at the same time, it is very difficult to accurately continue a certain piece of music, as described above.

Therefore, according to the present invention, in a composite recording / reproducing apparatus including a CD player, a cassette tape recorder, and an MD recorder, when recording is simultaneously performed from the CD player to the cassette tape recorder and the MD recorder, an apparatus capable of recording both of them without difficulty is provided. To provide.

Next, FIG. 2 shows a reproducing operation of a compact disk in a CD block in a composite recording / reproducing apparatus of the present invention, a recording image of an MD block on a magneto-optical disk,
This shows a recording image of a CT block on a magnetic tape.

FIG. 3 is a flowchart showing an operation which is a feature of the apparatus of the present invention.

FIG. 4 shows a recording example on a mini disk.

Next, an operation which is a feature of the present invention will be described in detail with reference to the above-described drawings.

First, after the MD block and the CT block have become recordable (step 1), recording of the MD block on the magneto-optical disk 13 and recording of the CT block on the cassette tape 56 are started (step 2). And step 3), after a short delay, the reproduction of the compact disc 31 in the CD block is started (step 4).

As each recording proceeds, as shown in FIG. 2, if the recording on the A side of the cassette tape 56 is completed in the middle of the track 5 of the compact disk 31 (that is, the tape end is detected) (step 5). After the reproduction of the compact disk 31 in the CD block is paused at the beginning of the music currently being played (step 6), the recording on the magneto-optical disk 13 in the MD block is started at the highest address of the music currently being recorded. The recording is temporarily stopped so that recording can be started from the break of the early cluster address (step 7).

Then, the reverse of the running direction of the magnetic tape and the reversal of the recording / reproducing magnetic head are performed in the CT block (step 8), and when the B side of the cassette tape 56 is in a recordable state (step 9), MD block and CT
Each recording in the block is resumed (steps 10 and 11), the reproduction pause state of the compact disk 31 in the CD block is released, and reproduction is resumed (step 12).

When the recording on the magneto-optical disk 13 in the MD block is performed in this manner, as shown in FIG.
For example, if the end address of the track 4 of the magneto-optical disk 13 is [0113H] cluster [12H] sector,
The start address of track 5 is [0114H] cluster [00H] sector, and [0113H] cluster [1
The [3113] sector to the [0113H] cluster [1FH] sector is a flush area. By performing the recording in this manner, an unnecessary portion is hardly formed on the MD disc (a slight flush area of at most less than one cluster is generated).

[0038]

As described above in detail, according to the present invention, a compact disk reproducing apparatus for reproducing a compact disk and a reverse type cassette tape recording and reproducing an audio signal on a cassette tape in an analog manner. In a composite recording / reproducing apparatus having a reproducing apparatus and a mini-disc recording / reproducing apparatus for recording and reproducing an audio signal digitally on and from a magneto-optical disc, the reproduction signal of the compact disc in the compact disc reproducing apparatus is converted into the cassette tape. During the recording operation on the cassette tape of the recording / reproducing device and the magneto-optical disk of the mini disc recording / reproducing device, when the cassette tape recording / reproducing device performs the reverse operation, the compact disc reproducing device is moved to the beginning of the track currently being reproduced. In the playback paused state, It forms a recording and reproducing apparatus in the following recording pause mode in order to record the cluster address of the recording start address of the recorded area of the tracks being currently recorded,
After the reverse operation of the cassette tape recording / reproducing apparatus is completed, the control means for restarting the reproduction of the compact disc reproducing apparatus and the recording of the mini disc recording / reproducing apparatus is provided. The mini-disk recording / reproducing apparatus restarts recording from the cluster address next to the recording start address of the recording area of the track recorded before the reverse operation of the cassette tape recording / reproducing apparatus. Unnecessary TrashArea hardly occurs on the top.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of a composite recording / reproducing apparatus of the present invention.

FIG. 2 is a view for explaining the operation of the composite recording / reproducing apparatus of the present invention.

FIG. 3 is a flowchart illustrating the operation of the composite recording / reproducing apparatus of the present invention.

FIG. 4 is a diagram showing a recording state on a magneto-optical disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Digital signal input terminal 2 Analog signal input terminal 3 A / D conversion circuit 4 ATRAC processing circuit 5 Digital signal processing circuit 6 RF amplifier for recording 7 Shock proof memory circuit 8 ADIP demodulation circuit 9 Digital signal processing circuit 10 ATRAC processing circuit 11 D / A conversion circuit 12 Analog signal output terminal 13 Magneto-optical disk 14 Recording magnetic head 15 MD laser pickup 16 Thread motor 17 Spindle motor 18 Motor control circuit 19 MD control circuit 20 Key input terminal 21 Mechanical switch input terminal 22 Input signal Changeover switch circuit 31 Compact disk 32 Laser pickup for CD 33 Thread motor 34 Spindle motor 35 Motor control circuit 36 Reproduction RF amplifier 37 Digital signal Logic circuit 38 D / A conversion circuit 39 analog signal output terminal 40 CD control circuit 41 key input terminal 42 mechanical switch input terminal 51 analog signal input terminal 52 recording amplifier 53 reproduction amplifier 54 analog signal output terminal 55 recording / reproduction magnetic head 56 cassette tape 57 Capstan motor 58 Reel motor 59 Reel motor control circuit 60 Capstan motor control circuit 61 CT control circuit 62 Key input terminal 63 Mechanical switch input terminal 64 Input signal switch circuit

Claims (1)

(57) [Claims] 1. A compact disk reproducing apparatus for reproducing a compact disk, a reverse type cassette tape recording and reproducing apparatus for recording and reproducing an audio signal on a cassette tape in an analog manner, and a digital audio for a magneto-optical disk. A composite disc recording / reproducing apparatus having a mini disc recording / reproducing apparatus for recording and reproducing a signal; During the recording operation on the magneto-optical disk, when the cassette tape recording / reproducing apparatus performs the reverse operation, the compact disk reproducing apparatus is set to the reproduction pause state at the beginning of the track currently being reproduced, and the mini disk recording / reproducing is performed. Track currently recording the device The recording is paused for recording from the cluster address next to the recording start address of the recorded area, and after the reverse operation of the cassette tape recording / reproducing device is completed, the reproduction of the compact disk reproducing device and the recording of the mini disk are performed. A composite recording / reproducing apparatus comprising a control unit for restarting recording of the reproducing apparatus.