JP3021281B2 - Information recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus such as a magneto-optical recording / reproducing apparatus capable of dubbing from a first recording medium to a second recording medium.

[0002]

2. Description of the Related Art Conventionally, it is composed of reproduced data and index information composed of address information on a disk indicating an area of each track and an empty area of the reproduced data. CD-WO (Compact Disc-W) is used as a recording medium for which the digital copying of the reproduced data is determined as to whether or not the recording signal is repeatedly inverted at a predetermined cycle.
rite once), which will be described below with reference to the drawings.

FIG. 8 shows the flow of recording and reproduction of a CD-WO.
As shown in (1), the data sampled by the A / D converter is subjected to CIRC encoding, a sub-code of a control signal and a synchronization signal is added to the data, and then EFM-modulated (replaced from 8 bits to 14 bits) and written to a disk. On the other hand, in the flow of reproduction, CIRC decoding is performed after EFM modulation in a procedure reverse to recording.

[0004] One frame of the reproduced data at the time when the L / R data and the subcode are decoded during the decoding of C2 in FIG. 8 is composed of the subcodes P, Q, and R as shown in FIG. , S, T, U, V, W 8b
10 and 16 bits of 16-bit audio data Lch / Rch, each of which is treated as one block of 98 pieces, and the sub-data shown in FIGS. 10 and 11 is completed. The subcode P is used for audio track division, the subcode Q is used for track No., time data and digital copy enable / disable determination, and the subcodes R, S, T, U, V, and W are used for display.

[0005] The subcode Q is a S ₀ S ₁ bit means a head (2bit), and control bits (4bit), and the address bits (4bit), and the data bits (78bit), CRC bits (16Bi
(t) is made up of a total of 98 bits (1 block = 98 frames), and whether digital copying is possible or not is determined by control bits.

[0006] As shown in Table 1, these control bits are bits indicating the number of channels from the MSB (start side) to the LSB (end side), and b indicating whether the signal is audio.
It is sequentially configured in the order of “it”, “bit” indicating whether digital copying is possible / not possible, and “bit” indicating presence / absence of pre-emphasis.

If the bit representing the number of channels is "1", it is determined to be "4ch", and "0" is determined.
Is determined as “2ch”. In addition, in the bit indicating whether or not the voice is sound, if it is “1”, it is determined that “it is not voice”, and if it is “0”, it is determined that it is “voice”. If the bit indicating whether digital copying is permitted or not is "1", it is determined that "multiple recordings by digital recording are possible" and "
If it is "0", it is determined that "single recording by digital recording is possible", and "1" and "0" are between 4 Hz and 1 Hz.
If it alternates at a cycle of 0 Hz, it is determined that “digital recording is not possible”. Further, in the bit indicating the presence or absence of pre-emphasis, if it is "1", it is determined that "pre-emphasis exists", and if it is "0", it is determined that "pre-emphasis does not exist".

[0008]

[Table 1]

That is, as shown in FIG. 12, the prohibition of copying by digital recording in the CD-WO is performed by controlling the control bits of the sub-code Q included in the reproduction data by three bits.
The eyes repeat inversion at a period of 4 Hz to 10 Hz.
Then, in the case of prohibiting the digital recording copy from being determined by this inversion, there is no provision that the process must be started from either “1” or “0”, so “1” → “0” or “0” The determination can be made by inverting one time from “→” “1”. If it is determined that copy inhibition by digital recording is to be determined by this one inversion, 10H
The determination can be made at 50 mS at z and 125 mS at 4 Hz. However, for data recorded on a disc such as subcode data, data may be lost due to failure to read signal data (error) and damage to the disc, and copying by digital recording is possible. Regardless, if data is lost due to scratches on the disc and the third bit of the control bit of the sub-code Q should be "1" but becomes "0", digital recording is performed in relation to the previous control bit. If copying is prohibited, there is a problem that an erroneous determination is made.

Therefore, the third bit of the control bit of the subcode Q is changed from “1” → “0” or “0” → “1”.
And then “0” → “1” or “1” → “0”
It is desirable to determine the prohibition of copying by digital recording by the time until the reversal to 4 Hz to 10 Hz, and by repeating it twice or more times.
Unless the reproduced data is actually reproduced for a predetermined time, it is impossible to accurately determine whether digital copying of the reproduced data is possible or not.

On the other hand, as a recording medium on which reproduction data read from such a recording medium can be recorded, address information on a disc indicating each track and a free area,
TOC (Table Of Content) as index information composed of character title information of each track and disk, recording date information of each track and disk, and the like.
s) There is a magneto-optical disk such as a mini disk whose data is managed by information.

When recording reproduction data from such a CD-WO on a mini disc, the CD-WO
Is set to enable / disable digital copying, and it is meaningless to record reproduction data that cannot be digitally copied on a mini disc. Therefore, when recording the reproduction data from the CD-WO on the mini-disc, the third bit of the sub-code Q control data included in the reproduction data read from the CD-WO recorded on the mini-disc has a period of 4 Hz to 10 Hz. It is determined whether or not digital reproduction of the reproduced data is possible or not according to whether or not the inversion is repeated, and the fourth bit in the sub-code included in the read reproduced data is 4 Hz to 10 Hz.
When it is determined that the digital copy is possible without repeating the inversion at the cycle of Hz, the CD-WO
The recording of the read data read from the mini disc is continued. On the other hand, when the fourth bit in the subcode included in the read reproduction data is repeatedly inverted at a period of 4 Hz to 10 Hz, and it is determined that digital copying is not possible, reading from the CD-WO is performed. The recording of the reproduced data on the mini-disc was stopped.

The apparatus using the mini-disc recorded as described above reads out the TOC information for managing data from the mini-disc when the mini-disc is mounted, and stores the TOC information in a storage means such as an IC memory. Data reproduction and recording are controlled based on the TOC information stored in the storage means, and each operation will be described below.

The reproduction of the data is performed by recognizing a data break based on the TOC information stored in the storage means.
The data is recorded by the TOC stored in the storage means.
Performs by recognizing the recordable area in the recording medium with the information,
After recording the data, the TOC information stored in the storage unit is rewritten to the TOC information according to the recording result, and the TOC information of the recording medium is rewritten to the TOC information of the storage unit.

[0015]

However, in the above-mentioned conventional apparatus, unless the reproduced data is actually reproduced for a predetermined time, an accurate judgment is made as to whether digital copying of the reproduced data is possible or not. Therefore, even if the recording on the mini-disc is stopped when it is determined that the digital copy of the reproduction data read from the CD-WO is impossible, the judgment result is not recorded on the mini-disc. Since the read data is recorded by the time the data is read out, and at the end of all the recordings, the index information relating to all the recordings including this recording is created and recorded. When a mini disc is played back, even if the data cannot be digitally copied, the recorded portion will be played back by the time required for this determination. .

In order to shorten the recording time of such a portion where digital copying is not possible, if the time taken to determine whether or not digital copying is possible is shortened, reading of reproduced data from a CD-WO fails (error) and the disc cannot be read. Even if the playback data can be digitally copied due to scratches, etc.,
This playback data is determined as playback data that cannot be digitally copied, and even if playback is interrupted during recording or playback data for which digital copying is prohibited, this playback data is playback data that can be digitally copied. Is determined and recorded.
There is also a limit in shortening the time required for determining whether or not digital copying is possible in order to shorten the recording time of the digital copy unusable portion.

An object of the present invention is to provide an information recording / reproducing apparatus capable of preventing reproduction data for which digital copying is prohibited from being recorded even during the time required to determine whether digital copying is possible or not. is there.

[0018]

In order to achieve the above object, the invention according to claim 1 comprises playback data and index information for managing the playback data. depending on whether the recording signal is repeatedly inverted at predetermined intervals in a first recording medium in which digital copy permission / inhibition of the reproduction data is determined, the reproduced data from the first recording medium recording Possible
And an index for managing the recorded reproduction data.
A second recording medium for creating and recording the read information, and reading means for reading the reproduced data from the first recording medium; and reproducing the read data read by the reading means on the second recording medium. Recording means for recording; determining means for determining whether or not the recording signal is repeatedly inverted at a predetermined cycle in a subcode included in the reproduction data read by the reading means; and determination from the determining means Control means for controlling the recording of the reproduction data based on the result and the index information, and controlling the reproduction of the reproduction data based on the index information, and controlling the reproduction data of the first recording medium by the control means. In the case where recording on the second recording medium has been performed, and when the determination unit determines that digital copying is possible, While continuing the recording by, when it is determined that the digital copying allowed by said determining means,
In the information recording / reproducing apparatus for stopping recording by the recording means, the control means causes the reproduction data of the first recording medium to be recorded on the second recording medium, and determines that digital copying is impossible by the determination means . When the record
Creating and recording corresponding index information on the second recording medium
It is controlled so as not to cause it.

[0019]

[0020]

According to a second aspect of the present invention, there are provided: playback data; and index information for managing the playback data.
A first recording medium for determining whether or not digital copying of the reproduced data is determined depending on whether or not the recording signal repeatedly inverts at a predetermined cycle in the subcode included in the reproduced data; While using a second recording medium for recording the reproduction data from the recording medium, a reading means for reading the reproduction data from the first recording medium, and temporarily storing the reproduction data read by the reading means Storage means, recording means for reading out the reproduction data stored in the storage means in the order in which they are stored, and recording the data on a second recording medium, and recording in a subcode included in the reproduction data read out by the reading means Determining means for determining whether or not the signal repeats inversion at a predetermined cycle; and based on the determination result from the determining means and the index information. Control means for controlling the recording of the reproduction data and controlling the reproduction of the reproduction data based on the index information, whereby the control means controls the recording of the reproduction data of the first recording medium on the second recording medium. When the digital copy is permitted by the determination unit, the recording by the recording unit is continued, and when the determination unit determines that the digital copy is not permitted, the recording by the recording unit is stopped. In the information recording / reproducing apparatus, when the control means causes the reproduction data of the first recording medium to be recorded on the second recording medium and the determination means determines whether or not digital copying is possible, the control means stores the data. and controls so as not to read the reproduction data stored in the unit.

The invention according to claim 3 provides the invention according to claim 2.
In addition to the bright, the control means, when it is determined that the digital copy is permitted by the determining means, one for recording the start of the reading of the reproduction data stored in the storage means by the recording means to the second recording medium, a digital copy When it is determined that the reproduction data is impossible, the reproduction data stored in the storage unit is deleted.
It is controlled as follows.

[0023]

According to the first aspect of the present invention , the reading means reads the reproduced data from the first recording medium under the control of the control means, and stores the reproduced data read from the first recording medium. there a case of recording the second recording medium, a recording signal during the sub-code determining means included in the reproduction data from the first recording medium that is read by the reading means repeatedly inverted at a predetermined period after determination of either impossible or is possible digital copy of the reproduction data depending on whether it has, its
Playback data for which digital copying is not possible
When it is determined that the playback data has been recorded,
Create index information corresponding to the second recording medium,
By not recording, index information
This data is stored in the second recording medium that performs the reproduction control based on this data.
Playback data that cannot be digitally copied cannot be played back.
Therefore, the playback data that cannot be digitally copied
2 can not be recorded on the recording medium
You.

[0024]

[0025]

According to the second aspect of the present invention , the reading means reads the reproduction data from the first recording medium under the control of the control means, and the storage means temporarily stores the reproduction data read from the first recording medium. And the recording means reads the reproduced data temporarily stored in the storage means in the order of storage and records the reproduced data on the second recording medium, wherein the determination means is read by the reading means. determining whether the recording signal is not possible or is possible digital copy of the reproduction data depending on whether repeatedly inverted at a predetermined period in a first in sub-code included in the reproduced data from the recording medium The control means controls the recording means so as not to read out the reproduction data for which the determination has been made from the storage means when performing the recording. Tarukopi can be prevented from being recorded on the second recording medium at the time the reproduced data is inhibited in the determination of the digital copy enable / disable.

According to the third aspect of the present invention , in the subcode included in the reproduction data from the first recording medium read by the reading means, the recording signal is repeatedly inverted at a predetermined cycle by the determining means. After determining whether or not the reproduced data can be digitally copied based on whether or not the reproduced data can be digitally copied, when it is determined that the determined reproduced data can be digitally copied, the control unit records. The control means controls the means to determine whether digital copying is possible or not, and sequentially reads out the reproduction data stored in the storage means in the order in which they are stored, and records the data in the second storage medium. When it is determined that the data cannot be digitally copied, the control means erases the reproduction data stored in the storage means, thereby allowing the first recording medium to be determined by the determination means. When al of the reproduction data is determined to be the digital copy, the power sale automatically line recording on the second recording medium reproducing data other hand, the data reproduced from the first recording medium by the determination means digital When it is determined that copying is not possible, the reproduction data can be prevented from being recorded on the second recording medium.

[0028]

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a composite audio apparatus as an embodiment of an information recording / reproducing apparatus according to the present invention, and FIG. 2 is a diagram showing a dubbing operation in the composite audio apparatus.
FIG. 3 is a time chart showing the premise , FIG. 3 is a flowchart showing the premise of the control of the dubbing operation in the complex audio device, and FIG.
Time chart showing an embodiment, FIG. 5 is the composite flow chart illustrating a first embodiment of the control of the dubbing operation in the audio apparatus, FIG. 6 is a time chart showing a second embodiment of the dubbing operation in the multifunction acoustic device, FIG. FIG. 7 is a flowchart showing a second embodiment of the control of the dubbing operation in the composite audio apparatus.

A composite audio device as an information recording / reproducing device according to the present invention includes an optical disk reproducing unit for reproducing an optical disk such as a CD and a CD-WO, and a magneto-optical disk such as a mini disk (hereinafter referred to as MD). And a magneto-optical disk reproducing unit for reproducing the audio data. The analog information such as audio data is digitized and recorded on the magneto-optical disk used in the magneto-optical disk unit.

A description will be given of a composite acoustic apparatus according to an embodiment of the present invention. Referring to FIG. 1, the optical disc reproducing unit will be described. The optical pickup 1 is a reproducing head that irradiates light to a disc 100 as a reproducible first recording medium and takes in reflected light from the disc 100. The RF signal recorded in the device is read. The RF amplifier 2 amplifies the RF signal read by the optical pickup and decodes the RF signal.
To be sent. Further, the RF amplifier 2 generates a servo control signal such as a focus error signal and a tracking error signal from the signal and sends it to the servo circuit 4. Decoder / signal processing circuit (hereinafter, referred to as
The signal processing circuit 3) is provided so as to be able to communicate with the CD control microcomputer 11 to perform processing of the subcode, etc., and demodulates an RF signal passed through an RF amplifier to convert the RF signal into digital information. The signal is transferred to the D / A converter 4 after performing predetermined signal processing such as error correction, and is transferred to the magneto-optical disk reproducing unit via a digital signal line.

The D / A converter 4 reproduces the digital information transferred from the signal processing circuit 3 into analog information, and outputs the analog information to the contact a of the output switch 5. The output changeover switch 5 is connected to an output section 6 including an amplifier for amplifying a signal input to the movable contact o and a speaker emitting sound to the outside.

The feed motor 7 is a motor for moving the optical pickup 1 in a direction perpendicular to a recording track (not shown) of the disk 100. Spindle motor 8
Is a motor for rotating the disk 100.
The driver circuit 9 supplies power to the feed motor 7, the spindle motor 8, and a driving device (not shown) for driving an objective lens (not shown) of the optical pickup 1 to operate them. I have.

The servo control circuit 10 includes the optical pickup 1
This is a circuit for performing field-back control of each of the above-described devices driven by the driver circuit 9 so that an operation of, for example, causing light emitted from the optical disk to follow a target recording track of the disk 100 is performed accurately. This servo control circuit 10
In accordance with an instruction from the CD control microcomputer 11, a control amount such as focus, tracking, and spin is determined based on the servo signal output from the RF amplifier 2, and the control amount is transmitted to the driver circuit 9 as a control signal. I have.

The CD control microcomputer 11 is a microcomputer for centrally managing the signal processing circuit 3 and the servo circuit 10. The input device 12 includes a switch, a key, and the like (not shown).
After that, the reproduction order (reading order) of a plurality of data recorded on the disc 100 is input to the CD control microcomputer 11 by a manual input operation using a keyboard or the like. The input device 12 executes various functions such as a dubbing command from the disc 100 as a first recording medium to a disc 101 as a second recording medium to be described later.

On the other hand, in the magneto-optical disk reproducing section, first, the data reproducing operation will be described. The optical pickup 13 irradiates light to a disk 101 as a second recording medium capable of recording and reproducing. This is a reproducing head that captures reflected light of the optical disk, and reads an RF signal recorded on the disk 101. The RF amplifier 14 receives the RF signal read by the optical pickup 13.
Encoder / decoder / signal processing circuit 1 for amplifying signals
5. Also, the RF amplifier 14
Generates a servo control signal such as a focus error signal and a tracking error signal from the signal and sends it to the servo control circuit 23. Encoder / decoder / signal processing circuit (hereinafter referred to as signal processing circuit) 15
Is provided so as to be able to communicate with the MD control microcomputer 24 in order to perform processing of the subcode, etc., and demodulates the RF signal passed through the RF amplifier 14 and converts it into digital information. The data is processed and transferred to the memory controller 16.

The memory controller 16 stores the digital information that has passed through the signal processing circuit 15 in the shockproof memory 1.
7, the writing operation and the reading operation of the shockproof memory 17 are controlled in accordance with an instruction from the system controller 24. The memory controller 16 transfers the digital information output from the signal processing circuit 15 to the shockproof memory 17 and transfers the digital information output from the shockproof memory 17 to the data decompression / compression circuit 18. I have.

The shock proof memory 17 temporarily stores digital information output from the signal processing circuit 15, and is provided with a dynamic random access memory (DRAM).
s Memory). The shock proof memory 17 is provided between the signal processing circuit 15 and the data decompression / compression circuit 18, and protects digital information to prevent interruption of recording / reproduction due to disturbance such as vibration. It is provided for the purpose of absorbing the difference between the transfer speed of the digital information output from the processing circuit 15 and the transfer speed of the digital information input to the data decompression / compression circuit 18 and storing the TOC information. .

The data decompression / compression circuit 18 decompresses the time axis of the digital information output from the memory controller 16 and time-compressed at a predetermined compression rate, and transfers the digital information to the D / A converter 19a of the converter 19. After reproducing the original analog information, the analog information is output to the contact b of the output switch 5. The A / D converter 7b will be described later.

The feed motor 20 is a motor for moving the optical pickup 13 in a direction perpendicular to a recording track (not shown) of the disk 101. The spindle motor 21 is a motor for rotating the disk 101. The driver circuit 22 supplies electric power to the feed motor 20, the spindle motor 21, and a driving device (not shown) for driving an objective lens (not shown) of the optical pickup 13 to operate them. I have.

The servo control circuit 23 includes the optical pickup 1
This is a circuit for performing a field-back control of each of the above-described devices driven by the driver circuit 22 so that the operation of causing the light emitted from the device 3 to follow the target recording track of the disk 101 accurately is performed. This servo control circuit 23
Is R according to the instruction of the MD control microcomputer 24.
The control amounts such as focus, tracking, and spin are determined based on the servo signal output from the F amplifier 14,
The control amount is sent to the driver circuit 22 as a control signal.

The MD control microcomputer 24 includes a signal processing circuit 15, a memory controller 16, and a servo circuit 23.
And a microcomputer for centrally managing the head driving device 25.

Next, the data recording operation will be described. The input terminal 26 is connected to an input unit (not shown) having a microphone and the like, and the A / D converter 19b is input from the input terminal 26 via an analog signal line. The analog information is converted into digital information and transferred to the data decompression / compression circuit 18. Further, digital information is input to the data expansion / compression circuit 18 from the signal processing circuit 3 of the optical disk reproducing unit via a digital signal line.
The time axis of the digital information output from the / D converter 19b or the optical disc reproducing unit is set to a predetermined compression ratio, for example, about 1
/ 5, and is transferred to the memory controller 16.

The memory controller 16 performs data expansion / decompression.
The digital information output from the compression circuit 18 is transferred to the shock proof memory 17, and when the digital information is not read out from the shock proof memory 17, the data amount of the digital information stored in the shock proof memory 17 is transferred to the shock proof memory 17. 17 is detected by monitoring the address, and the detection result is set to MD.
Output to the control microcomputer 24. When the data amount of the shock proof memory 17 reaches a predetermined value,
The MD control microcomputer 24 outputs the digital information stored in the shock proof memory 17 to the signal processing circuit 15. At this time, the memory controller 16 also aims to absorb the difference between the digital information output from the shockproof memory 17 and the transfer speed of the digital information input to the signal processing circuit 15.

The signal processing circuit 15 modulates digital information output from the memory controller 16 to convert it into an RF signal, and transfers the RF signal to the head driving device 25. The head driving device 25 transfers the RF signal output from the signal processing circuit 15 to the recording head 27, and also causes the recording head 27 to accurately record the RF signal on a target recording track of the disk 101. The recording head 27 is moved in a direction perpendicular to the recording tracks of the disk 101. The recording head 27
An RF signal is recorded in a recording area of the disk 101. The recording head 27 records the TOC information in the writing area of the disk 101.

The CD control microcomputer 11 and M
The control means is constituted by the D control microcomputer 24 and the CD control microcomputer 11 and the MD
Various operation commands and various control signals input from the input device 12 are exchanged with the control microcomputer 24.

In the above configuration, when the disc 100 is mounted on the optical disc reproducing section, the optical pickup 1
An RF signal is read from the TOC area of the disc 100. This RF signal is amplified by the RF amplifier 2 and
The signal processing circuit 3 performs demodulation and predetermined signal processing, and
After being restored as C information, the information is stored in a storage unit (not shown).
The RF signal is read from the user TOC area of. The RF signal is amplified by an RF amplifier 14, demodulated by a signal processing circuit 15, subjected to predetermined signal processing, restored as TOC information, transferred to a memory controller 16, and stored in a shockproof memory 17. You.

During operations such as reproduction or recording of the discs 100 and 101, the CD control microcomputer 11
In response to a request from the MD control microcomputer 24, necessary TOC information is read from a storage unit (not shown) and the shock proof memory 17 and sent to the CD control microcomputer 11 and the MD control microcomputer 24. Then, the CD control microcomputer 11 and the MD control microcomputer 24 control the servo circuit 11 based on the TOC information. As described above, in a state where the discs 100 and 101 are mounted on the composite audio apparatus, by performing a dubbing command by operating the input device 12, a dubbing operation from the disc 100 to the disc 101 is started, Below, from disk 100 to disk 1
The dubbing operation to 01 will be described for each embodiment.

< Premises > When a dubbing command from the disc 100 to the disc 101 is issued from the input device 12, the CD control microcomputer 1
1 recognizes a start address and an end address of each music from the TOC information of the disc 100, and the MD control microcomputer 24 recognizes a recordable area of the disc 101 from the TOC information of the disc 101. Then, the CD control microcomputer 11 displays the number of songs and the recording time corresponding to each song on display means (not shown) on the basis of the information to inform the user and inform the user of the song to be dubbed by the input device 12. Input from a keyboard or the like. At this time, a plurality of songs may be selectively reproduced in an arbitrary order by a programming operation.
Alternatively, all songs after the selected song may be dubbed.

Then, the CD control microcomputer 11 controls the servo control circuit 10 based on the information from the operation input of the input device 12, and the servo control circuit 10 controls the driver circuit 9 according to the instruction to control the feed motor 7, the spindle The motor 8 and the objective lens (not shown) of the optical pickup 1 are driven to position light emitted from the optical pickup 1 on a target recording track in the program area of the disk 100.

On the other hand, the MD control microcomputer 24 controls the servo control circuit 16 based on the information recognized from the TOC information of the disk 101, and the servo control circuit 16 controls the driver circuit 22 according to the instruction to control the feed motor 20, The spindle motor 21 and an objective lens (not shown) of the optical pickup 13 are driven to place the optical pickup 13 on the first recording track of the recordable area of the disk 101.
And the MD control microcomputer 24 also controls the head driving device 25 based on the information recognized from the TOC information of the disk 101, and the head driving device 25 drives the recording head 27 according to the instruction. Then, it is positioned on the first recording track of the recordable area of the disk 101, opposite to the surface on which the light emitted from the optical pickup 13 is located.

In this state, when dubbing is started by operating the input device 12, the CD control microcomputer 11 controls the servo control circuit 10 based on the instruction, and the servo control circuit 10 controls the driver circuit 9 according to the instruction. And feed motor 7 and spindle motor 8
Then, an objective lens (not shown) of the optical pickup 1 is driven, and an RF signal is read by the optical pickup 1 from a target recording track in a program area of the disc 100,
The signal is sent to the RF amplifier 2.

Then, the RF amplifier 2 amplifies the input RF signal and sends it out to the signal processing circuit 3.
Extracts a subcode contained in the RF signal and sends it to a CD control microcomputer 11 provided so as to be able to communicate.

Then, in the CD control microcomputer 11, 3b of the subcode Q of the input subcode is
It is checked whether the it is “1” or “0”, and the third bit of the subsequently input subcode Q is also checked. Then, the disc 100 is reproduced for a predetermined time or more, the RF signal is read, and the third bit of the subcode Q is confirmed by the CD control microcomputer 11 more than a predetermined number of times. In some cases, it is determined that "copying by digital recording is possible", and when all the confirmed results are "0", it is determined that "one copy by digital recording is possible", and the confirmation is made. The result obtained is 4 Hz to 10 Hz.
If “1” and “0” are inverted, it is determined that “copying by digital recording is impossible”.

The case where the result of the third bit of the subcode Q being confirmed by the CD control microcomputer 11 at least a predetermined number of times is such that "1" and "0" are inverted at a period of 4 Hz to 10 Hz, for example. The third bit of the subcode Q input first is “0”, the third bit of the subcode Q input subsequently is “1”, and then 50 m
A sub-code Q whose third bit is “0” is input between S and 125 ms, and 3
This is a case where the bit number continues to be inverted between 50 mS and 125 mS.

At this time, the RF amplified by the RF amplifier 2
The signal is also sent to the servo circuit 10 as a servo control signal used for feedback control. The servo control circuit 10 determines a control amount according to an instruction from the CD control microcomputer 11 based on the servo control signal, and outputs a control signal to the driver circuit 9. Then, the driver circuit 9 operates the feed motor 7, the spindle motor 8, and the objective lens driving device of the optical pickup 1 according to the magnitude of the control signal. Thereby, the rotation speed of the disk 21 is controlled to a predetermined value, and the position of the objective lens (not shown) is driven so as to accurately follow the recording track.

On the other hand, the magneto-optical disk reproducing unit is connected to the MD control microcomputer 2 from the CD control microcomputer 11.
No data is recorded on the disc 101 when the drive command for the disc 101 is not transmitted to the disc 4 and the CD control microcomputer 11 determines whether or not copying by digital recording is possible as described above. .

Then, the CD control microcomputer 11 completes the determination as to whether or not copying by digital recording is possible.
If the result of confirming the third bit is "1" or "0" and it is determined that copying by digital recording is possible, the CD control microcomputer 11
Controls the servo control circuit 10 to stop the reproduction of the disk 100, and the servo control circuit 10 controls the driver circuit 9 according to the instruction of the CD control microcomputer 11 to control the feed motor 7, the spindle motor 8 and the optical pickup 1. By driving an objective lens (not shown), the light emitted from the optical pickup 1 is positioned on a target recording track in the program area of the disk 100 for which the copy permission / non-permission has been determined previously.

Accordingly, the CD control microcomputer 1
1 to the MD control microcomputer 24 from the disk 101
Is transmitted to the MD control microcomputer 24.
Controls the servo control circuit 16 based on the driving command, and the servo control circuit 16 controls the driver circuit 22 according to the instruction to control the feed motor 20, the spindle motor 21, and the objective lens (not shown) of the optical pickup 13. To cause the light emitted from the optical pickup 13 located at the first recording track of the recordable area of the disk 101 to follow the recording track, and the MD control microcomputer 24 also controls the head driving device 14 to The drive device 14 drives the recording head 28 in accordance with the instruction to follow the recording track together with the optical pickup 13, and in this state, rotates the disk 101 to put the disk 101 into the recording state. In the recording state of the CD control microcomputer 1 1 controls the servo control circuit 10, and the servo control circuit 10 controls the driver circuit 9 according to the instruction to control the feed motor 7, the spindle motor 8
Then, an objective lens (not shown) of the optical pickup 1 is driven, and an RF signal is read by the optical pickup 1 from a target recording track in a program area of the disc 100,
The signal is sent to the RF amplifier 2. Then, the RF amplifier 2 amplifies the input RF signal and sends it out to the signal processing circuit 3, which demodulates the RF signal and converts it into digital information. The signal is sent to the data expansion / compression circuit 18 of the magneto-optical disk reproducing unit via the signal line.

The data expansion / compression circuit 18 compresses the time axis of the inputted digital information to a predetermined compression ratio (about 1/5) and transfers it to the memory controller 16. The digital signal transferred to the memory controller 4 is Are written to and temporarily stored in the data area of the shock proof memory 17, and are read out to the memory controller 16 in the order of writing. Then, the digital information output from the memory controller 16 is temporarily stored in the data area of the shock proof memory 17.

The shock proof memory 17
When a predetermined amount of data has been stored in the memory controller 16, the memory controller 16 detects that the predetermined amount has been stored, and the MD control microcomputer 24 controls the memory controller 16 based on the detection result to control the data area of the shockproof memory 17. Are read out in the order in which they were written, and the read out digital information is subjected to modulation and predetermined signal processing by a signal processing circuit 15 to be converted into an RF signal, and is passed through a head drive circuit 25. Recording head 27
And is recorded in the program area of the disk 101 by interaction with light from the optical pickup 13.

At this time, the transfer speed differs between the digital information stored in the data area of the shock proof memory 17 and the digital information read from the data area of the shock proof memory 17 by the memory controller 16. Reading from the data area is faster.

The shock proof memory 17
When the data amount of the digital information stored in the data area decreases to a predetermined amount, the MD control microcomputer 24 controls the memory controller 16 to stop reading the digital information from the data area of the shockproof memory 17. . At this time, when digital information is input from the optical disk reproducing unit via the digital signal line, the same recording operation as described above is repeated, and no digital information is input for a certain period of time. When the playback music is shifted to the next music based on the TOC information, and it is determined that the track number (TNO) has changed, the recording operation of the disk 101 is temporarily stopped, and the copy by digital recording is enabled / disabled as described above.
The digital control unit 11 determines that the disk 1 is not available, and furthermore, does not input digital information for a certain period of time.
If it is determined that all the songs to be dubbed selected by the TOC information 00 and the input device 12 have been reproduced, it is determined that the dubbing operation has been completed, and the MD control microcomputer 24 determines whether the disc 1 has been recorded.
T consisting of address information and the like corresponding to each track No. 01
OC information is created, the created TOC information is stored in the TOC storage area of the shock proof memory 17 before the power of the apparatus is turned off, and the same processing as the signal processing performed at the time of data recording is performed. After recording in the user TOC area, the recording operation is stopped.

The CD control microcomputer 11 completes the determination as to whether or not copying by digital recording is possible.
The result of checking the bit number is “1” and “
If 0 "is inverted and it is determined that copying by digital recording is impossible, the CD control microcomputer 11 controls the servo control circuit 10 to stop the reproduction of the disk 100, and the servo control circuit 10 Controls the driver circuit 9 in accordance with an instruction from the CD control microcomputer 11 to drive the feed motor 7, the spindle motor 8 and the objective lens (not shown) of the optical pickup 1, and to select the next to be dubbed by the input device 12 The light emitted from the optical pickup 1 is positioned at the beginning of the recording track of the song, and at this time, a display means (not shown) may indicate that copying by digital recording is impossible.

Then, in the next song where the optical pickup 1 is located, copying by digital recording is permitted /
If there is no next song to be dubbed that is input selected by the input device 12 at this time, it is determined that the dubbing operation has been completed, and the MD control microcomputer 24 determines whether each of the discs 101 after data recording has been recorded. The TOC information including address information and the like corresponding to the track is created, and the created TOC information is stored in the TOC storage area of the shock proof memory 5 before the power of the apparatus is turned off. After performing the same processing and recording the data in the user TOC area of the disk 21, the recording operation is stopped.

That is, as shown in the time chart of FIG. 2, when the number of music pieces to be dubbed is set based on the input selection of the input device 12, and then the start of dubbing is instructed, the optical disc reproducing section specifies the number of music pieces to be dubbed. A reproduction operation is performed to determine whether or not copying by digital recording is possible. At this time, the magneto-optical disk reproducing unit is in a recording standby state at a target recording track position.

In this state, when it is determined that the music reproduced by the optical disk reproducing unit can be copied by digital recording, as shown in FIG. 2A, the copy by digital recording can be performed by the optical disk reproducing unit. In addition to reproducing the music from the head track of the music for which the determination of / is impossible, the magneto-optical disk reproducing unit is changed from the recording standby state to the recording state, and the data reproduced by the optical disk reproducing unit is recorded on the magneto-optical disk. When the track being played on the optical disk playback unit shifts to the next song and the track number is switched, the next song is again played on the optical disk playback unit to determine whether copying by digital recording is possible or not, and Then, the magneto-optical reproducing unit is switched from the recording state to the recording standby state, and the above operation is repeated.

On the other hand, if it is determined in the above state that the music reproduced by the optical disk reproducing unit cannot be copied by digital recording, the recording is performed by the magneto-optical disk reproducing unit as shown in FIG. The standby state is maintained, and the next song is reproduced from the first track of the song following the song for which digital recording was determined to be copy-enabled by the optical disc playback unit, and the determination of whether digital copy was possible or not was performed. Then, the above operation is repeated.

The above operation determines whether or not all of the songs to be dubbed input and selected by the input device 12 can be copied by digital recording, and only data that can be copied by digital recording is recorded on the magneto-optical disk. When recorded, the T on the magneto-optical disk after recording
The OC information is created and recorded on the magneto-optical disk, and the dubbing operation ends.

The above-described dubbing operation will be briefly described with reference to the flowchart of FIG.

At step F1, it is checked whether the disks 100 and 101 have been mounted, and if they have been mounted, the process proceeds to step F2. Then, in step F2, the TOC information of the disks 100 and 101 is read, and the process proceeds to step F3.

In step F3, the servo control circuit 10 is controlled to move the optical pickup 1 to the head track of the music piece to be dubbed on the disk 100, and then in step F4
In step F4, the servo control circuit 23 and the head driving device 25 are controlled to move the optical pickup 13 and the recording head 27 to a recordable area on the disk 101, and the disk 101 is set to a recording standby state, and then the process proceeds to step F5. .

In step F5, it is determined whether or not a dubbing start command has been issued by operating the input device 12.
If it is determined that a dubbing start command has not been issued, this operation is repeated until a dubbing start command is issued,
When it is determined that the dubbing start command has been issued, the process proceeds to step F6. In step F6, the servo control circuit 10 is controlled to reproduce the music to be dubbed from the disk 100, and then proceeds to step F7.

In step F7, the third bit of the sub-code Q included in the reproduced signal of the reproduced music is checked at least a predetermined number of times, and the result is that "1" and "0" are repeatedly inverted at predetermined periods. Is determined at a predetermined cycle.
If 1 "and" 0 "have not been repeatedly inverted, it is determined that" copying by digital recording is possible ", and the flow shifts to step F8 where" 1 "and" 0 "are output at a predetermined cycle. If the reversal is repeated, it is determined that "copying by digital recording is impossible", and the routine goes to Step F15.

In step F8, the servo control circuit 10 is controlled to move the optical pickup 1 to the head track of the previously reproduced tune on the disk 100, and the flow proceeds to step F9. In step F9, the servo control circuit 23 and the head driving device 25 To drive the optical pickup 13 and the recording head 27 located in the recordable area of the disk 101, and set the disk 101 to a recording state and shift to step F10. Then, in step F10, the servo control circuit 10 is controlled to reproduce the music to be dubbed from the disk 100, and the reproduced data is recorded on the disk 101, and the process proceeds to step F11.

In step F11, it is determined whether or not data to be recorded on the disk 101 has not been input for a certain period of time. If input has been performed, the flow proceeds to step F9 to repeat the above operation, and it is determined that input has not been performed. In step F12, the process proceeds to step F12. In step F12, it is determined whether or not the track being played from the disc 100 has shifted to the next song and the track number has changed. If it is determined that the track number has changed, Step F13
Then, the servo control circuit 23 and the head driving device 25 are controlled to put the disk 101 in the recording standby state. Then, the process shifts to step F6 to repeat the above operation and determine that the track number has not changed. If so, the process moves to step F14.

In step F14, TOC information corresponding to the disc 101 after recording is created, and
After recording in the one user TOC area, this flowchart ends.

On the other hand, if the process has proceeded from step F7 to step F15, it is determined in step F15 whether there is a next song to be dubbed. If it is determined that there is no next song to be dubbed, After performing the above operation in step F14, the process ends the flowchart. If it is determined that there is a next song to be dubbed, the process proceeds to step F16. In step F16, the servo control circuit 10 is controlled to move the optical pickup 1 from the disk 100 to the first track of the next music piece to be dubbed, and the flow proceeds to step F6 to repeat the above operation.

As described above, at the start of dubbing from the disc 100 to the disc 101, when it is determined whether or not copying of data to be dubbed on the disc 100 by digital recording is possible, the disc 101
By not performing the recording operation, it is possible to prevent erroneous recording of data that cannot be copied, and when it is determined that copying is possible, the copyable data is automatically initialized. , And can eliminate data incompleteness.

[0080] <First Embodiment> Incidentally, briefly described is the operation common to the operation of the assumptions in the first embodiment. When a song to be dubbed is set by a dubbing command from the disc 100 to the disc 101 by the input device 12, the CD control microcomputer 11 uses the TOC information of the disc 100 and the information from the input operation of the input device 12 based on the TOC information. Servo control circuit 10
While the light emitted from the optical pickup 1 is positioned on the target recording track of the disc 100, while the MD
The control microcomputer 24 controls the servo control circuit 16 and the head driving device 25 on the basis of the TOC information of the disk 101, and moves the light emitted from the optical pickup 1 and the recording head 27 to the first recording track of the recordable area of the disk 101. And put the disk 101 in a recording standby state.

In this state, when dubbing is started by operating the input device 12, the disc 1 is transferred from the CD control microcomputer 11 to the MD control microcomputer 24.
01 is transmitted, the MD control microcomputer 24 controls the servo control circuit 16 and the head driving device 25 based on the drive command to put the disc 101 into the recording state, and the CD control microcomputer 11 sends the dubbing start command. The servo control circuit 10 controls the servo control circuit 10 to reproduce the music, reads an RF signal from the target recording track in the program area of the disk 100 by the optical pickup 1, amplifies the RF signal by the RF amplifier 2, and performs signal processing. Circuit 3 and the signal processing circuit 3
The sub-code included in the signal is extracted and sent to the CD control microcomputer 11.

The CD control microcomputer 11 determines whether the third bit of the sub-code Q of the input sub-code is "1" or "0" at least a predetermined number of times, and reproduces the data. It is determined whether the copied data can be copied by digital recording or not.

That is, when the CD control microcomputer 11 determines whether or not copying by digital recording is possible, the data for determining whether or not copying by digital recording is the same as in the first embodiment. It is recorded on the disk 101 based on the operation.

Then, the CD control microcomputer 11 completes the determination as to whether or not copying by digital recording is possible, and if it is determined that copying is possible as a result of the determination, the disk 101 of the data reproduced from the disk 100 Continue recording to disk 100 for a certain period of time
Data is not reproduced from the CD control microcomputer 1
If the track No. 1 is determined by the TOC information of the disc 100 to change to the next tune and the track number to be changed, the data reproduced from the disc 100 is recorded on the disc 101 and the digital It is determined whether or not copying by recording is possible. If no data is reproduced from the disc 100 for a certain period of time and the CD control microcomputer 11 determines that all the songs to be dubbed have been reproduced, the dubbing is completed. Judge,
After the MD control microcomputer 24 creates TOC information including address information and the like corresponding to each track of the disk 101 after data recording, performs the same operation as the data recording operation, and records the information in the user TOC area of the disk 101. Then, the dubbing operation is stopped.

On the other hand, when the CD control microcomputer 11 determines that copying is not possible as a result of the determination as to whether copying by digital recording is possible or not, the CD control microcomputer 11 controls the servo control circuit 10 to The reproduction is stopped, and the light emitted from the optical pickup 1 is positioned at the head of the recording track of the next music piece to be dubbed input selected by the input device 12, and
The MD control microcomputer 24 erases the address information on the recording track of the disk 101 on which the data that cannot be copied is recorded, so that the disk 101 on which the data that cannot be copied is recorded in the TOC information created after the dubbing is completed. The recording track address information is not created.

In the next song where the optical pickup 1 is located, copying by digital recording is permitted /
If there is no next song to be dubbed selected and input by the input device 12 at this time, it is determined that the dubbing operation has been completed, and the MD control microcomputer 24 determines that the data has been recorded and the copy has not been completed. After erasing the address information on the recording track of the disk 101 on which the impossible data is recorded, TOC information including address information and the like corresponding to each track of the disk 101 is created, and the same operation as the operation at the time of data recording is performed. After recording in the user TOC area of the disc 101, the dubbing operation is stopped. That is, a recording track of the disk 101 on which data that cannot be copied is recorded is incorporated into the address information as a recordable area.

That is, as shown in the time chart of FIG. 4, when the number of music pieces to be dubbed is set based on the input selection of the input device 12, and then the start of dubbing is instructed, the optical disc reproducing section performs the setting of the music pieces to be dubbed. A reproduction operation is performed to determine whether or not copying by digital recording is possible. At this time, the magneto-optical disk reproducing unit starts recording from a target recording track position and is in a recording state.

In this state, if it is determined that the music reproduced by the optical disk reproducing unit can be copied by digital recording, the optical disk reproducing unit determines whether the digital recording can be copied or not. At the same time as the reproduction is continued, the recording state is also maintained in the magneto-optical disk reproducing unit, the recording is continued, and the data reproduced by the optical disk reproducing unit is dubbed to the magneto-optical disk.

When the tune being reproduced in the optical disc reproducing section shifts to the next tune and the track number is switched, the next tune is reproduced in the optical disc reproducing section to determine again whether digital copying is possible or not. At the same time, the magneto-optical reproducing unit holds the recording state and continues recording, and if it is determined that the next music reproduced by the optical disk reproducing unit cannot be copied by digital recording, the magneto-optical disk reproducing unit At the same time, the recording state shifts from the recording state to the recording standby state, and the next song is reproduced from the first track of the next song of the song for which the digital recording copy / non-copy is determined by the optical disc reproducing unit, and the digital recording copy is possible. / No, while the disc on the magneto-optical disk on which the data judged to be impossible to copy is recorded. Treated as a recordable area as the address information corresponding to.

The above operation determines whether or not all of the songs to be dubbed input and selected by the input device 12 can be copied by digital recording, and data that can be copied by digital recording is recorded on the magneto-optical disk. Then, TOC information such as address information corresponding to each track of the recorded magneto-optical disk is created and recorded on the magneto-optical disk, and the dubbing operation ends. still,
As TOC information created after the recording, the address information of the track on which the data determined to be uncopiable is recorded is a recordable area.

The above-described dubbing operation will be briefly described with reference to the flowchart of FIG.

At step F21, it is confirmed whether or not the disk 100 and the disk 101 are mounted, and if they are, the process proceeds to step F22. Then, Step F22
Reads the TOC information of the disk 100 and the disk 101, and proceeds to step F23.

In step F23, the servo control circuit 10 is controlled to move the optical pickup 1 to the head track of the song to be dubbed on the disc 100, and
24, and in a step F24, the servo control circuit 23
Then, the optical pickup 13 and the recording head 27 are moved to a recordable area of the disk 101 by controlling the head driving device 25, and the disk 101 is set to a recording standby state, and the process proceeds to step F25.

In step F25, it is determined whether or not a dubbing start command has been issued by operating the input device 12. If it is determined that the dubbing start command has not been issued, this operation is repeated until the dubbing start command is issued. If it is determined that the dubbing start command has been issued, the process proceeds to step F26, in which the servo control circuit 23 and the head driving device 25 are controlled to
1. Optical pickup 13 located in recordable area in 1
Then, the recording head 27 is driven, and the disk 101 is set to the recording state, and the flow shifts to step F27. In step F27, the servo control circuit 10 is controlled to reproduce the music to be dubbed from the disk 100, and then the process proceeds to step F28.

In step F28, the third bit of the subcode Q included in the reproduced signal of the reproduced music is checked a predetermined number of times or more, and the result is that "1" and "0" are repeatedly inverted at a predetermined cycle. Is determined at a predetermined cycle.
If 1 "and" 0 "have not been repeatedly inverted, it is determined that" copying by digital recording is possible ", and the flow shifts to step F29 where" 1 "and" 0 "change at a predetermined cycle. If the reversal is repeated, it is determined that "copying by digital recording is impossible", and the flow shifts to step F32.

In step F29, it is determined whether or not data to be recorded on the disk 101 has not been input for a certain period of time. If input has been performed, this operation is repeated until it is determined that input has not been performed. If it has, the process moves to step F30. In step F30, it is determined whether or not the track being played from the disc 100 has shifted to the next track and the track number has changed. Repeat, if it is determined that the track number has not changed, the process proceeds to step F31.

In step F31, TOC information corresponding to the disc 101 after recording is created, and
After recording in the one user TOC area, this flowchart ends.

On the other hand, from step F28 to step F32
In step F32, the process proceeds to step F2.
In order to determine that the data recorded by the operations of steps F26 and F27 was not recorded on the track on the disk 101 during the determination of whether the copying was possible or not according to No. 8, the address information corresponding to this track was recorded. The process is performed as a possible area, and the process proceeds to Step F33.

In step F33, it is determined whether there is a next song to be dubbed. If it is determined that there is no next song to be dubbed, the flow shifts to step F31 to perform the above operation. If the flow chart is ended and it is determined that there is a next music piece to be dubbed, step F3
Move to 4. In step F34, the servo control circuit 10
To move the optical pickup 1 from the disc 100 to the first track of the next music piece to be dubbed, and
Then, the flow goes to 26 to repeat the above operation.

As described above, at the start of dubbing from the disk 100 to the disk 101, the data recorded on the disk 101 is determined when it is determined whether the data to be dubbed on the disk 100 can be copied by digital recording. When the data is determined to be uncopyable data, the data is processed as if it had not been recorded, so that it is possible to prevent erroneous recording of uncopyable data and to prevent dubbing. The time can be significantly reduced.

< Second Embodiment> In the second embodiment, the operation based on the above premise and the operation common to the first embodiment will be briefly described. Input device 1
When a song to be dubbed is set by a dubbing command from the disc 100 to the disc 101 according to 2, the CD
The control microcomputer 11 controls the servo control circuit 10 based on the TOC information of the disk 100 and the information from the operation input of the input device 12 so that the light emitted from the optical pickup 1 is positioned on the target recording track of the disk 100. On the other hand, the MD control microcomputer 24
The servo control circuit 16 and the head drive device 25 are controlled based on the TOC information of the disk 101, and the light emitted from the optical pickup 1 and the recording head 27 are positioned at the first recording track of the recordable area of the disk 101. In the recording standby state.

In this state, when dubbing is started by operating the input device 12, the disc 1 is transferred from the CD control microcomputer 11 to the MD control microcomputer 24.
01 is transmitted, and the MD control microcomputer 24 controls the servo control circuit 16 and the head driving device 26 based on the first driving command to
In the recording standby state, and the memory controller 16
Is stored in the shock proof memory 17 so that the stored data is not read out from the shock proof memory 17.

On the other hand, the CD control microcomputer 11 controls the servo control circuit 10 based on the dubbing start command to reproduce the music, and the optical pickup 1 uses the RF from the target recording track in the program area of the disc 100.
The signal is read, and the RF signal is amplified by the RF amplifier 2 and sent to the signal processing circuit 3. The signal processing circuit 3 extracts the subcode contained in the RF signal and sends it to the CD control microcomputer 11.

The CD control microcomputer 11 determines whether the third bit of the sub-code Q of the input sub-code is "1" or "0" at least a predetermined number of times, and reproduces the data. It is determined whether the copied data can be copied by digital recording or not.

As described above, the CD control microcomputer 1
When it is determined at step 1 whether copying by digital recording is permitted or not, the data read from the disk 100 is stored in the shockproof memory 17 of the magneto-optical reproducing unit. Is not read, and the disk 10
1 is not substantially recorded.

Then, the CD control microcomputer 11 completes the determination as to whether or not copying by digital recording is possible. When it is determined that copying is possible as a result of the determination, the data reproduction of the disc 100 is continued and , The second drive command is transmitted to the MD control microcomputer 24, and the MD control microcomputer 24
The servo control circuit 16 and the head driving device 26 are controlled based on the drive command to put the disk 101 in the recording state, and the memory controller 16 is controlled to extend the data.
The storage of the data transferred from the compression circuit 18 in the shock proof memory 17 is continued, and the data stored in the shock proof memory 17 is read.

At this time, between the data stored in the data area of the shock proof memory 17 and the data read by the memory controller 16, the stored data is decompressed by the data decompression / compression circuit 18 to a predetermined compression ratio. Because of the compression, the transfer speed is different,
It is faster to read. Therefore, there is no delay in the recording operation by the amount of the data stored on the disk 101 when the CD control microcomputer 11 determines that the copying is permitted / impossible.

During this recording operation, data is not reproduced from the disk 100 for a certain period of time, and the CD control microcomputer 11 determines that the reproduced music has shifted to the next music based on the TOC information of the disk 100 and the track number has changed. In this case, the data reproduced from the disk 100 is stored in the shock proof memory 17 in the same manner as described above, and it is determined whether or not copying by digital recording is possible, and data is not reproduced from the disk 100 for a certain period of time. If the CD control microcomputer 11 determines that all the songs to be dubbed have been reproduced, it determines that the dubbing has been completed and the MD control microcomputer 24
Creates TOC information including address information and the like corresponding to each track of the disk 101 after data recording,
By performing the same operation as the operation at the time of data recording,
Then, the dubbing operation is stopped after recording in the user TOC area.

On the other hand, when the CD control microcomputer 11 determines that copying is not possible as a result of the determination as to whether copying by digital recording is possible or not, the CD control microcomputer 11 controls the servo control circuit 10 to The reproduction is stopped, and the light emitted from the optical pickup 1 is positioned at the head of the recording track of the next music to be dubbed, which is input and selected by the input device 12, and
MD control microcomputer 24 is memory controller 1
6, the data stored in the data storage area of the shock proof memory 17 is erased at the same time when the copy permission / non-permission is determined, and the data transferred from the data decompression / compression circuit 18 is shocked. The data is stored in the proof memory 17 and the stored data is not read from the shock proof memory 17.

In the next song where the optical pickup 1 is located, copying by digital recording is permitted /
If there is no next song to be dubbed selected and input by the input device 12 at this time, it is determined that the dubbing operation has been completed, and the MD control microcomputer 24 determines that each track of the disk 101 after data recording has been completed. TOC information including address information and the like corresponding to the disk 1
After recording in the user TOC area 01, the dubbing operation is stopped.

That is, as shown in the time chart of FIG. 6, when the number of music pieces to be dubbed is set based on the input selection of the input device 12, and the start of dubbing is instructed, the optical disc reproducing unit starts to execute the music pieces to be dubbed. A reproduction operation is performed to determine whether copying by digital recording is possible or not. At this time, the magneto-optical disk reproducing unit is in a state where the reproduced data is stored in the memory.

In this state, if it is determined that the music reproduced by the optical disk reproducing unit can be copied by digital recording, the optical disk reproducing unit determines whether the digital music can be copied or not. While continuing the reproduction, the magneto-optical disk reproducing unit performs the reading operation of the data stored in the memory while maintaining the storage state of the memory, starts the recording operation on the magneto-optical disk, and reproduces the data by the optical disk reproducing unit. The dubbing of the selected data to the magneto-optical disk is continued.

When the track being played back in the optical disk playback unit shifts to the next song and the track number is switched, the next song is played back in the optical disk playback unit, and the determination as to whether copying by digital recording is possible or not is made again. At the same time, the magneto-optical reproducing unit shifts the recording state of the magneto-optical disk to the recording standby state, and keeps the storage state of the memory to continue data storage. If it is determined that copying by recording is not possible, the magneto-optical disk reproducing unit shifts from a recording state to a recording standby state, and the optical disk reproducing unit determines whether the copy by digital recording is permitted or not. The next song is played from the first track of the next song to determine whether copying by digital recording is possible or not. Copy of the variable in the disk playback unit /
The data stored in the memory is erased at the same time while the determination of the improper operation is performed, and the data reproduced during the judgment of the propriety of the copy is not recorded on the magneto-optical disk. I do.

The above operation determines whether or not copying of all songs selected and inputted by the input device 12 to be dubbed by digital recording is possible, and data that can be copied by digital recording is recorded on the magneto-optical disk. Then, TOC information such as address information corresponding to each track of the recorded magneto-optical disk is created and recorded on the magneto-optical disk, and the dubbing operation ends.

The above-mentioned dubbing operation will be briefly described with reference to the flowchart of FIG.

At step F41, it is checked whether the disc 100 and the disc 101 have been mounted, and if they have been mounted, the flow shifts to step F42. Then, Step F42
Reads the TOC information of the disk 100 and the disk 101, and proceeds to step F43.

In step F43, the servo control circuit 10 is controlled to move the optical pickup 1 to the first track of the music piece to be dubbed on the disk 100, and then to step F43.
The process proceeds to step F44, and in step F44, the servo control circuit 23
Then, the optical pickup 13 and the recording head 27 are moved to a recordable area of the disk 101 by controlling the head driving device 25, and the disk 101 is set to a recording standby state, and the process proceeds to step F45.

In step F45, it is determined whether or not a dubbing start command has been issued by operating the input device 12. If it is determined that the dubbing start command has not been issued, this operation is repeated until a dubbing start command is issued. If it is determined that a dubbing start command has been issued, the process proceeds to step F46, in which the memory controller 16 is controlled to start storage in the shock proof memory 17 and to prevent data from being read from the shock proof memory 17. The process moves to step F47. In step F47, the servo control circuit 10 is controlled to reproduce the music to be dubbed from the disk 100, and the flow shifts to step F48.

In step F48, the third bit of the subcode Q included in the reproduced signal of the reproduced music is checked a predetermined number of times or more, and the result is that "1" and "0" are repeatedly inverted at a predetermined cycle. To determine whether or not "
If 1 "and" 0 "have not been repeatedly inverted, it is determined that" copying by digital recording is possible ", and the flow shifts to step F49 where" 1 "and" 0 "change at a predetermined cycle. If the reversal is repeated, it is determined that "copying by digital recording is impossible", and the routine goes to Step F54.

In step F49, the servo control circuit 16 and the head driving device 25 are controlled to drive the optical pickup 13 and the recording head 27 located in the recordable area of the disk 101, and the disk 101 is set to a recording state, and the process proceeds to step F50. In step F50, the memory controller 16 is controlled to
And the shock proof memory 1
7, the process proceeds to step F51.

In step F51, it is determined whether or not data to be recorded on the disc 101 has not been input for a certain period of time. If input has been performed, this operation is repeated until it is determined that input has not been performed. If it has, the process moves to step F52. In step F52, it is determined whether or not the track being played from the disc 100 has shifted to the next track and the track number has changed. Repeat, if it is determined that the track number has not changed, the process proceeds to step F53.

In step F53, TOC information corresponding to the disc 101 after recording is created, and
After recording in the one user TOC area, this flowchart ends.

On the other hand, from step F48 to step F54
In step F54, the process proceeds to step F4.
In order to prevent the data stored in the shock proof memory 17 from being recorded on the disk 101 by the operations of step F46 and step F47 during the determination of the copy permission / non-permission by the copy proof memory 17,
Is erased collectively, and the routine goes to Step F55.

In step F55, it is determined whether there is a next song to be dubbed. If it is determined that there is no next song to be dubbed, the flow shifts to step F53 to perform the above operation. If the flow chart ends and it is determined that there is a next music piece to be dubbed, step F5
Move to 6. In step F56, the servo control circuit 10
To move the optical pickup 1 from the disc 100 to the first track of the next music piece to be dubbed, and
The flow shifts to 46, and the above operation is repeated.

As described above, at the start of dubbing from the disc 100 to the disc 101, when it is determined whether data to be dubbed on the disc 100 can be copied by digital recording, the data is shock-proof. The disk 101 is stored in the memory 17 only when it is determined that copying is possible.
Therefore, it is possible to prevent erroneous recording of data that cannot be copied, and to greatly reduce dubbing time.

[0126]

As described above, according to the first aspect of the present invention, the reading means reads the reproduced data from the first recording medium under the control of the control means, and reads the reproduced data from the first recording medium. in a case where the recording unit reproduced data is recorded in the second recording medium, determining means recording signals in a sub-code contained in the reproduced data from the first recording medium that is read by the reading means a predetermined Whether the digital copy of the playback data is possible or not is determined based on whether the inversion is repeated in the cycle.
After performing this, the playback data for which the determination was made is copied digitally.
-When it is determined that the reproduction is not possible,
Index information corresponding to the data recording is stored in the second recording
By not creating and recording on media,
To a second recording medium that performs playback control based on
The playback data that cannot be copied digitally can be played.
Therefore, this digital copy is virtually impossible to reproduce.
The data is not recorded on the second recording medium.
When the digital copy is permitted / not permitted, the second
If uncopyable data recorded on a recording medium is
Can be prevented, and the first recording medium
Time required for data recording operation from body to second recording medium
Can be shortened.

[0127]

[0128]

According to the second aspect of the invention, under the control of the control means, the reading means reads the reproduced data from the first recording medium, and the storage means temporarily stores the reproduced data read from the first recording medium. And the recording means sequentially reads the reproduction data temporarily stored in the storage means in the order of storage, and records the reproduced data on the second recording medium. determining whether the recording signal is not possible or is possible digital copy of the reproduction data depending on whether repeatedly inverted at a predetermined period in a first in sub-code included in the reproduced data from the recording medium The control means controls the recording means so as not to read out the reproduction data for which the determination has been made from the storage means when performing the recording. Since it is possible to prevent the reproduction data whose total copying has been prohibited from being recorded on the second recording medium in the time required for determining whether digital copying is possible or not, it is possible to prevent erroneous recording of non-copying data. Can be.

According to the third aspect of the present invention, the recording signal is repeatedly inverted at a predetermined cycle in the subcode included in the reproduction data from the first recording medium read by the reading means. After determining whether or not digital reproduction of the reproduced data is possible depending on whether or not the reproduction data is digitally copy-permitted, the control unit records. Means for controlling whether the digital copy is permitted or not, and sequentially reads out the reproduction data stored in the storage means in the order in which the reproduction data is stored, and records the reproduction data in the second storage medium. When it is determined that the data cannot be digitally copied, the control means erases the reproduction data stored in the storage means, thereby allowing the first recording medium to be determined by the determination means. When it is determined that the reproduced data can be digitally copied, the reproduced data is automatically recorded on the second recording medium, so that incompleteness of the copyable data can be suppressed. When the judging means judges that the reproduction data from the first recording medium cannot be digitally copied, the reproduction data is not recorded on the second recording medium. Can be prevented, and the time required for data recording operation from the first recording medium to the second recording medium can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a composite audio apparatus which is an embodiment of an information recording / reproducing apparatus according to the present invention.

FIG. 2 is a time chart showing a premise of a dubbing operation in the composite audio device.

FIG. 3 is a flowchart showing a premise of a dubbing operation in the complex audio device.

FIG. 4 is a diagram illustrating a first dubbing operation in the composite audio device.
4 is a time chart showing an embodiment.

FIG. 5 is a diagram illustrating a first dubbing operation in the composite audio device.
5 is a flowchart illustrating an embodiment.

FIG. 6 shows a second dubbing operation in the composite audio device.
4 is a time chart showing an embodiment.

FIG. 7 shows a second dubbing operation in the composite audio device.
5 is a flowchart illustrating an embodiment.

FIG. 8 is an explanatory diagram showing a flow of recording and reproduction of a CD-WO.

FIG. 9 is an explanatory diagram showing a recording structure of one frame in a CD-WO.

FIG. 10 is an explanatory diagram showing a recording structure of one block in a CD-WO.

FIG. 11 is an explanatory diagram showing a conceptual structure of a subcode Q in a CD-WO.

FIG. 12 is a time chart showing a copy prohibition state in the CD-WO.

[Description of Signs] 1,13 Optical Pickup 2,14 RF Amplifier 3 Decoder 4 D / A Converter 5 Output Changeover Switch 6 Output Unit 7,20 Feed Motor 8,21 Spindle Motor 9,22 Driver Circuit 10,23 Servo Control Circuit Reference Signs List 11 CD control microcomputer 12 Input device 15 Encoder / decoder / signal processing circuit 16 Memory controller 17 Shock proof memory 18 Data decompression / compression circuit 19 Converter 24 MD control microcomputer 25 Head drive device 26 Input terminal 27 Recording head 100, 101 Disk

Claims (3)

(57) [Claims] 1. A reproduction data comprising: reproduction data; and index information for managing the reproduction data. A first recording medium for determining whether digital copying is permitted / non-permitted, and reproduction data from the first recording medium capable of being recorded.
Index to manage the recorded playback data
A second recording medium for creating and recording information; a reading unit for reading reproduction data from the first recording medium; and a second recording medium for reading reproduction data read by the reading unit.
Recording means for recording on a recording medium, and determining means for determining whether or not a recording signal is repeatedly inverted at a predetermined cycle in a subcode included in the reproduction data read by the reading means. Control means for controlling the recording of the reproduced data based on the determination result from the means and the index information, and controlling the reproduction of the reproduced data based on the index information; Is recorded on the second recording medium, and when it is determined by the determining means that digital copying is possible, recording by the recording means is continued, and digital copying is disabled by the determining means. In the information recording / reproducing apparatus for stopping the recording by the recording means when it is determined that When the reproduction data of the recording medium is recorded on the second recording medium, and the determination means determines that the digital copy is not possible, the recording corresponding to the recording is performed.
An information recording / reproducing apparatus that does not create and record index information on a second recording medium . 2. The playback data is composed of playback data and index information for managing the playback data. The playback data is determined by whether or not a recording signal repeatedly inverts at a predetermined cycle in a subcode included in the playback data. Using a first recording medium for which permission / inhibition of digital copying is determined and a second recording medium for recording reproduction data from the first recording medium, while reproducing data from the first recording medium Reading means for reading the data, storage means for temporarily storing the reproduction data read by the reading means, and reading the reproduction data stored in the storage means in the order of storage, and recording the data on a second recording medium. A recording unit, and a recording signal is repeatedly inverted at a predetermined cycle in a subcode included in the reproduction data read by the reading unit. Determining means for determining whether or not the data is read, and controlling means for performing recording control of the reproduced data based on the determination result from the determining means and the index information, and controlling reproduction of the reproduced data based on the index information. The recording of the reproduction data of the first recording medium on the second recording medium by the control means, and when the determination means determines that digital copying is possible, the recording by the recording means is performed. The information recording / reproducing apparatus which continues the recording and stops the recording by the recording means when it is determined that the digital copying is impossible by the determining means. When the determination means determines whether or not digital copying is possible, the reproduction data stored in the storage means is recorded. Especially that it does not read the data
Information recording and reproducing apparatus according to symptoms. 3. The control means according to claim 1, wherein:
When it is determined that digital copying is possible, storage by recording means
Reading of the reproduction data stored in the means is started and the second
While recording on a recording medium of
The playback data stored in the storage means.
3. The information recording / reproducing apparatus according to claim 2, wherein
Place.