JP2000105968A - Audio system, reproducer and storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To judge whether a recording from a CD to an MD is possible or not by using a digital audio interface between a reproducer and a storage device. SOLUTION: The system controller 105 of an MD player 100 controls an operation transmitting the reproducing time information of the track read out from the UTOC of a CD for reproduction via buss lines 351. The system controller 205 of an MD recorder 200 obtains the reproducing time information from the data transmitted via the buss lines 351 and it judges whether a recording from the CD to the MD is possible or not by comparing the reproducing time information with the remaining storable time of an MD for recording 201.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for storing audio data read from a storage medium in another storage medium.

[0002]

2. Description of the Related Art Conventionally, CDs (compact disks) and MDs (mini disks) have been known as storage media for storing audio data as digital audio information.

[0003] Here, in order to store the audio information reproduced from these storage media in another storage medium, the reproducing apparatus usually reads out the storage medium storing the audio data,
This is performed by sending audio data read from the playback device to a storage device and storing the received audio data in another storage medium in the storage device. A digital audio interface (EIAJ CP-1201) is known as an interface standard between audio devices that can be used for transmitting and receiving audio data between such a reproducing device and a storage device.

Hereinafter, the digital audio interface will be described.

As shown in FIG. 13A, in the digital audio interface, blocks composed of 192 frames are sequentially transmitted. Each frame is composed of two subframes, channel 1 and channel 2.

Each subframe is composed of 32 time slots as shown in FIG.
The synchronization preambles No. to No. 3 store synchronization patterns. In the synchronization preamble of channel 1, pattern "B" is stored only in the first subframe of the block, and pattern "M" is stored in other subframes. Also, the pattern "W" is included in the synchronization preamble of channel 2.
Is stored. Here, the pattern “B” of the synchronization preamble is used for block synchronization, and the patterns “B”, “M”, and “W” of the synchronization preamble are used for frame and subframe synchronization. In addition, auxiliary information or an extension word of an audio sample is stored in the audio openings of time slots 4 to 7 of each subframe, and audio samples are stored in time slots 8 to 27. A parity flag is stored in the time slot 28 of each subframe, one bit of user data relating to the channel to which the subframe belongs is stored in the time slot 29, and a channel to which the subframe belongs is stored in the time slot 30. One bit of the channel status is stored, and a parity bit is stored in the time slot 31.

Therefore, a block composed of 192 frames stores 192 bits of channel status and 192 bits of user data for each channel.

FIG. 14 shows the contents of the channel status when the output device to the digital audio interface is a consumer digital audio device.

As shown in the figure, in this case, a 192 bit channel status of 0 to 2 transmitted in one block is used.
Various data are stored in 9 bits, and all 0s are stored in 30 to 191 bits. The value 0 of the 0 bit of the channel status indicates that the device is a consumer digital audio device. In the mode of bits 6 to 7, 0 is stored as a standard. The control of bits 1 to 5 specifies the format of data transmitted on the channel, and the category code of bits 8 to 15 specifies the digital audio interface. The source type of the output is stored. For example, when the category code is 10000000L, it indicates that the source is a compact disc, and the category code is 100 000L.
01L indicates that the source is a mini-disc.
In addition, the channel status includes the source number,
A channel number, a sampling frequency, a clock precision, and the like are stored.

Next, user data when the output source to the digital audio interface is a compact disc will be described.

[0011] A frame composed of 12 audio samples and one subcoding symbol is stored in the compact disc, and 98 frames form one block. A sub-code block is formed by one block of sub-coding symbols, and one sub-code block is composed of one sub-coding symbol.
Since it is equivalent to 2 bits, 98 × 12 = 1117 bits.

When the output source is a compact disc, this subcode block is stored in the user data of the digital audio interface.

FIG. 15 shows the contents of the user data in this case. As shown, one subcode block is composed of 1172 bits of user data, and the subcode block includes 96 bits each of subcodes Q to W in addition to the synchronization pattern of the subcode block. Data is included.

Here, the contents of the subcode Q are shown in FIG.
Shown in

As shown, the subcode Q includes CONT
ROL, ADR, TNO, X, MIN, SEC, FRAME, AMIN, ASEC, AFR
AME, etc. data is stored.

CONTROL represents the number of channels of data transmitted using the channel, and X represents an index number. MIN, SEC, FRAME represents the elapsed time in the song, and AMIN, ASEC, AFRAME represents the elapsed time in the compact disc. ADR indicates the data format of the subcode Q. When ADR is 0, TNO indicates the track number.

The track number is an identification number of the track, and the track is used as a set of certain audio data defined by a memory person, for example, one music piece as one track.

Next, user data when the source of the output to the digital audio interface is a mini-disc reproducing device will be described.

In the case of a mini-disc, subcode blocks are defined similarly to a compact disc. In the mini disc, the sub code block is not effectively used, but the format of the user data of the digital audio interface is defined so as to form the sub code block, and the mini disc reproducing apparatus uses the sub code block. And outputs predetermined data as user data.

FIG. 18 shows the contents of the subcode Q of the subcode block formed by the user data.

As shown in the figure, in the case of a mini-disc, the sub-code Q stores an ADR indicating the contents of the sub-code Q, a TNO indicating a track number, and an INDEX indicating an operation state of the mini-disc reproducing apparatus. . For minidisc,
ADR is 0 by default.

Conventionally, when audio data read from a CD or MD is stored in a storage MD using such a digital audio interface, user data is used to switch tracks in controlling the storage operation of the MD storage device. Was used only to recognize. That is,
The MD storage device stores the T of the subcode Q included in the user data.
Monitor the NO, recognize that the track has changed when the TNO has changed, and only perform the operation of generating the track number and track management information of the track to be stored in the storage MD according to this recognition according to the user data. I was going.

The digital audio interface has been described above.

According to the MD standard, the user can use the MD or
The MD and various information about each track stored in the MD, such as the character string of the title of each track stored in the MD, the date and time when the track was stored, the length of each track, and the storage format of the track, are stored in the MD. It can be stored in itself.

Here, as a technique for storing a character string of a track title in such an MD, a technique described in Japanese Patent Application Laid-Open No. Hei 9-106661 is known.

According to this technique, a CD reproducing apparatus and an MD capable of internally setting a character string of a title of a track of a CD are provided.
The storage device is connected to an audio signal line for transmitting audio data by a bus line. When the audio data read from the CD is recorded on the MD, the track of the audio data read from the CD is transmitted from the CD playback device to the MD storage device using an audio signal line, and is used inside the CD playback device. The character string of the title of the CD track set by the user is transmitted from the CD playback device to the MD storage device using a bus line separate from the audio signal line. The MD storage device stores the track of the audio data transmitted using the audio signal line in the MD, and converts the character string transmitted using the bus line into the MD as the character string of the title of the stored audio data track. Remember.

According to this technique, the user does not need to reset the character string of the title of the track of the read source CD set in the CD player to the write destination MD.

[0028]

Conventionally, according to a user's request, when a playback device transmits a track of audio data read from a certain storage medium to a storage device and stores the track on another storage medium, Although a character string is transmitted, it does not transmit various kinds of information about a recording track to control recording and reproduction operations, and thus lacks convenience for a user.

For example, when all the tracks on the read-source MD requested by the user to be stored are not left on the write-destination MD, the remaining storage time for writing is recorded. The last track is partially stored in the destination MD, or a track stored in a monaural format on the source MD is stored in a stereo format on the destination MD. There was something.

Accordingly, the present invention provides a playback apparatus which transmits a track of audio data read from a storage medium to a storage apparatus and stores the track on another storage medium in accordance with a user's request. An audio system capable of realizing a convenient operation and transmitting the information of the track stored in the storage medium from which the data is read out from the playback apparatus to the storage apparatus. The task is to provide

[0031]

In order to achieve the above object,
The present invention includes a playback device and a storage device, wherein the playback device has a first device that stores at least one track of audio data and track information that is information on the track.
Output the track read from the storage medium to the storage device via the first transmission line, and the storage device reads the track input from the reproduction device via the first transmission line to the second storage medium Wherein the playback device reads, from the first storage medium, the track information of a track requested to be stored in the storage device, and stores predetermined information determined in accordance with the read track information into the first storage medium. And means for outputting to the storage device via the second transmission line, wherein the storage device responds to the predetermined information input from the reproduction device via the second transmission line. An audio system comprising: means for controlling an operation performed to store a track input from the first transmission line via the first transmission line to a second storage medium. Subjected to.

According to such an audio system,
The track information of the track that requires storage from the playback device to the storage device stored in the storage medium of the read source is transmitted to the storage device, and the storage device stores the track in the storage medium of the write destination according to the track information. By controlling the operation performed to perform the operation, a more convenient operation for the user is realized.

[0033]

Embodiments of the present invention will be described below.

FIG. 1 shows the configuration of an audio system according to this embodiment.

As shown, the audio system has an MD player 100 and an MD recorder 200. MD
The player 100 and the MD recorder 200 transmit and receive audio data via the digital audio interface described above.

The MD player 100 includes a mechanical control unit 102,
Signal processing unit 103, modulation unit 104, system controller 105 with built-in storage unit 106, display unit 107, operation unit 1
08, and reproduces the mounted reproduction MD 101.
On the other hand, the MD recorder 200 has a mechanical control unit 204, a signal processing unit 203, a demodulation unit 202, a system controller 205 with a built-in storage unit 206, a display unit 207, and an operation unit 208, and performs recording on the mounted recording MD 201. Do. The system controller 105 of the MD player 100 and the system controller 205 of the MD recorder 200 are connected to the bus line 3 separate from the signal line 350 for the audio interface.
It is connected at 51 and transmits and receives information on tracks and the like.

Here, details of each unit of the MD player 100 and the MD recorder 200 will be described by using the MD recording / reproducing apparatus which functions as both the MD player 100 and the MD recorder 200.

FIG. 2 shows the configuration of the MD recording / reproducing apparatus in this case.

As shown, in this case, the mechanical control unit 1
02 and 204 correspond to the spindle motor 1, the servo control circuit 3, the slide motor 2, the optical pickup 5, the head amplifier 6, the magnetic head drive circuit 14, the magnetic head 15, and the like. The signal processing units 103 and 203 include a modulation / demodulation unit 7A and a compression / decompression unit 7B, a memory control unit 8, a storage circuit 9, a D / A converter 10, and an A / D converter 1.
3, the analog input / output unit 18 and the like correspond. Further, the digital audio interface modulation / demodulation circuit 11 and the digital input / output unit 19 in the figure correspond to the modulation unit 104 and the demodulation unit 202.

The MD storage / reproduction device shown in FIG.
The operation when functioning as 0 will be described.

In this case, the system controller 12
Upon receiving a reproduction start instruction from the operation unit 17, the servo control circuit 3 is started, and the mini disc 1 is rotated by the spindle motor 2. The optical pickup 5 irradiates the mini disc 1 with a laser beam and converts the reflected light into an electric signal. The electric signal is input to the servo control circuit 3 and the modem 7A via the head amplifier 6.

The servo control circuit 3 controls the rotation speed of the disk of the spindle motor 2, the position of the optical pickup 5 of the slide motor 4, and the control of the focus and tracking of the optical pickup 5 by using an input electric signal or the like. Do.

On the other hand, the modulation / demodulation unit 7A receives EFM (Eight to Fourteen Modulation) and ACIRC of the input electric signal.
Performs demodulation according to (Adaptive Cross Interleave Read-solomon Code). The demodulated data is compressed data which is input to the memory control unit 8.

The memory control section 8 sequentially stores the input compressed data in the storage circuit 9.

The compressed data stored in the storage circuit 9 is input to the compression / decompression unit 7B via the memory control unit 8, and is subjected to ATRAC (Adaptive Transform Acoustic Coding).
Is demodulated (expanded) into audio data.

The demodulated audio data is input to a D / A converter 10 and a digital audio interface modulation / demodulation circuit 11. D / A converter 10
Then, the input audio data is converted into an analog audio signal and output from the analog output unit 18.

On the other hand, the digital audio interface modulation / demodulation circuit 11 outputs the input audio data from the digital input / output unit 19 as an audio sample in the format of the digital audio interface shown in FIG. 13 via an optical cable or a coaxial cable. I do.

Here, the system controller 12 sends, to the digital audio interface modulation / demodulation circuit 11, information to be included in the channel status data shown in FIG. Digital audio interface modulation /
The demodulation circuit 11 performs an operation of outputting the digital audio interface channel status data from the digital input / output unit 19.

The system controller 12 controls the servo control circuit 3, and controls the UTOC recorded on the mini disc 1 from the optical pickup 5 via the head amplifier 6.
An operation of reading information is performed. The UTOC is composed of three areas. In the UTOC area 0, as shown in FIG. 3, a start address and an end address indicating a recording position of each track recorded on the MD, and a recording mode (monaural mode) of each track. And stereo mode) are stored in the UTC area 1 as shown in FIG.
Title information such as a disc name or a track name, which is a character string of the title of each track recorded on the MD or MD, is stored. The UTC area 2 is recorded on the MD or MD as shown in FIG. The date and time when each track is recorded or updated is stored as the disk recording date and time and the track recording date and time.

In this embodiment, the system controller 1
Numeral 2 reads the MD and title information of each track recorded on the MD from the UTOC area 1 and sends it to the digital audio interface modulation / demodulation circuit 11.

Digital audio interface modulation /
The demodulation circuit 11 includes the title information in the user data of the digital audio interface as the subcode Q data of the subcode block formed by the user data in the format shown in FIG.
Output via.

In FIG. 6, when ADR is xxxx, it indicates that the subcode Q is data of title information,
1 to 6 represent character strings of title information, and TNO is CHAR1
Indicates whether the character strings indicated by Nos. To 6 are MD title information, and if not, indicates which track title information recorded on the MD. CHAR is CH
The character string represented by AR1 to AR6 indicates the type of the character code, for example, ASCII. OFFSET indicates the number of the character in the title information that is the first character in the subcode Q data, and is provided on the assumption that the title information cannot be contained in one subcode Q data. The end of the title information indicates CHAR1 to CHAR6 as 00h.

Here, the system controller 12.
While the reproduction of D1 is stopped, control is performed so that the subcode Q data of FIG. 6 that stores title information on MD is repeatedly transmitted. On the other hand, during the reproduction of MD1, the subcode Q data of FIG. 6 which stores the title information of the track being reproduced is repeated, and switches to the normal subcode Q data previously shown in FIG. Control so that it is output.

Track information recorded in relation to a track (recording time of the track, recording date and time of the track,
When a track is reproduced and output from the digital input / output unit 19, the data is output from the controller 12 via the bus line input / output unit 20 when the track is reproduced and output from the digital input / output unit 19.

Next, the operation when the MD storage / reproduction device of FIG. 2 functions as the MD recorder 200 will be described.

In this case, audio data input from the digital input / output unit 19 as audio samples in the format of the digital audio interface is input to the digital audio interface modulation / demodulation circuit 11.

Digital audio interface modulation /
The demodulation circuit 11 demodulates digital audio data,
The audio data input to the compression / decompression unit 7B is modulated (compressed) by ATRAC. The compressed data is stored in the storage circuit 9 via the memory control unit 8. When the storage amount of the storage circuit 9 reaches a predetermined amount, the memory control unit 8 reads out the compressed data from the storage circuit 9 and outputs the data to the modulation / demodulation unit 7A.

In the modem 7A, the EFM and ACIR of the compressed data are
The C modulation is performed, and the output is output to the magnetic head drive circuit 14. The magnetic head drive circuit 14 generates magnetic fields of N and S poles corresponding to the recording EFM signal, and applies a magnetic field to the mini disc 1 via the magnetic head 15. On the other hand, a storage laser power (high power) is applied to the mini disk 1 from the optical pickup 5 arranged on the opposite side of the magnetic head 15. A signal is stored in the mini-disc 1 by two actions of a magnetic field from the magnetic head 15 and heat by the storage laser power from the optical pickup 5.

Here, the system controller 12 performs an operation of processing channel status data and user data input from the digital input / output unit 10 through a digital audio interface, in addition to the control of recording of audio data as described above.

FIG. 7 shows the procedure of this processing performed by the system controller 12.

When the channel status data and the user data are input, the system controller 12 always checks them.

That is, first, bit 0 of the channel status data is checked to determine whether the output device to the digital audio interface is a consumer digital audio device (step ST1).
It is checked whether or not the modes of .about.7 are standard 0 (step ST3), and whether or not the control of bits 1 to 5 is 2-channel audio (step ST4).

If it is not a consumer digital audio device, if the mode is not 0, or if it is not 2-channel audio, the recording operation is temporarily stopped (step ST2).

In other cases, it is checked whether or not the category code of bits 8 to 15 of the channel status data indicates that the source is a mini disk or a compact disk (step ST5). The check of is ended.

On the other hand, if the source is a mini disk or a compact disk, the data of the subcode Q is obtained from the user data (step ST6), and it is checked whether or not the ADR of the subcode Q is 0 or 1. When the ADR is 0, the data of the subcode Q is the data of the conventional subcode Q of the MD shown in FIG.
Is 1, the data of the subcode Q storing the track number and the elapsed time previously shown in FIG.

If the ADR is 0 or 1, the TNO indicating the track number in the data of the subcode Q is checked to see if it differs from the previously checked TNO value (step ST8). If different, it means that the track of the audio data input as the audio sample has been switched, so that the process of updating the recorded track number is performed (step ST9). Specifically, for example, the end address of the UTC area 0 shown in FIG. 3 of the track that was input before the track was switched according to the recording position of the audio data on the mini-disc, and the input address after the track was switched Start address data of the track to be recorded and MD for recording the track
Set the upper track number.

On the other hand, when ADR is not 0 or 1,
Further, it is checked whether the ADR is xxxx (step S
T10). And if ADR is xxxx, subcode Q
Is the data in which the title information of the MD or the track shown in FIG. 6 is stored. Therefore, a process of acquiring this title information together with the TNO is performed (step ST1).
1), end the process. Here, the title information of the acquired track is the TN acquired finally along with the title information.
The U (track number on the playback MD) is associated with the track number (track number on the recording MD) when the track is recorded, and the UTC area 1 of the mini disc 1 shown in FIG.
As a disc name and a track name. However, when the TNO indicates that the title information is not the track title information but the MD title information, it is recorded as MD title information.

Returning to FIG. 1, the MD player 100 having the function of outputting the title information in addition to the audio data through the digital audio interface as described above.
Recorder having a function of recording title information input by a digital audio interface on an MD
Will be described with reference to the sequence of the overall operation when recording the audio data read from the reproduction MD 101 to the recording MD 201.

First, the system controller 105 of the MD player 100 controls the reproduction MD 101 by the mechanical controller 10.
2, the signal is processed by the signal processing unit 103, and the UTC data is stored in the storage unit 106.

After storing the data, the MD player 100
The system controller 105 stops the rotation of the reproduction MD 101 and enters a stopped state. At this time, the system controller 105 sends the disk name of the UTC area 1 stored in the storage unit 106 to the modulation unit 104. Modulation unit 10
4 is a subcode Q of the format shown in FIG. 6 in which the disk name is stored in CHAR1 to CHAR6 and TNO is set to 00h.
Is output to the MD recorder 200. Also, MD
The system controller 105 of the player 100 sets a stop state for the modulation unit 104. Modulation section 104
According to this, the INDEX is set to FFh (indicating the STOP state), and the subcode Q in the format shown in FIG.
Is output to the MD recorder 200. The data of the subcode Q storing the disc name as title information and the data of the subcode Q with INDEX set to FFh are repeatedly output by the modulation unit 104 while switching while the MD player 100 is stopped. The track information reproduced by the reproducing apparatus and transmitted via the bus line is input to the system controller 12 before recording.

When the MD recorder 200 is set to the recording standby state, the mechanical control unit 204 of the MD recorder 200
The recording MD 201 enters a recording standby state with respect to the position of the recordable area. When in the recording standby state, the system controller 205 of the MD recorder 200 stores the disk name read from the data of the subcode Q sent from the demodulation unit 202 in the storage unit 206 as the disk name.

Next, the system controller 105 of the MD player 100 controls the mechanical control unit 102 so that the first track of the reproduction MD is to be reproduced and the reproduction is temporarily stopped. Then, the system controller 105
A track number to be reproduced and an operation state are set for the modulation unit 104. In accordance with this, the modulator 104 outputs the data of the subcode Q in the format shown in FIG. 18 with TNO set to 01h and INDEX set to 00h (indicating the PAUSE state) to the MD recorder. Also, the system controller 105 stores the data stored in the storage unit 106 in the modulation unit 104.
The track name of the track number 1 of the UTOC area 1 is sent to the modulator 104. The modulator 104 stores the track name in CHAR1 to CHAR6 and outputs the data of the subcode Q in the format shown in FIG. The data of the subcode Q in which the track name of the first track is stored as title information and the data of the subcode Q with INDEX set to 00h are repeatedly output while being switched by the modulation unit 104 while the MD player 100 is temporarily stopped. Is done.

Here, the system controller 205 of the MD recorder 200 in the recording standby state is
1 read from the data of subcode Q sent from
The track name of the track is already set to the recording MD 201
Is stored in the storage unit 206 as the track name of the track number following the last number of the track recorded in the storage unit 206.

Next, when the MD recorder 100 is set to the recording state and then the MD player 100 is set to the reproduction state, the MD player 100 starts reproduction of the first track, and the audio data of the first track is modulated by the modulation unit. The data is output from the MD recorder 104 to the MD recorder. On the other hand, the MD player 10
The system controller 105 of 0 sets a track number to be reproduced and an operation state for the modulation unit 106.
According to this, the modulation unit 104 sets TNO to 01h and INDEX to 0
The data of the sub-code Q in the format shown in FIG. 18 with 1h (indicating the PLAY state) is output to the MD recorder 200. Further, the modulation unit 104 includes a subcode Q storing the track name of the first track as title information.
And the data of the subcode Q with INDEX set to 01h are repeatedly output while switching while outputting the audio data of the first track.

When the system controller 205 of the MD recorder 200 recognizes the data of the subcode Q in the format shown in FIG. 18 where INDEX is 01h (indicating the PLAY state), the system controller 205 converts the audio data sent from the MD player 100 into The information is recorded on the recording MD 201 as a track next to the last track already recorded on the recording MD 201. Further, the system controller 205 of the MD recorder 200 transmits the subcode Q
Is stored in the storage unit 206 as the track name of the track number on the recording MD 201 of the track being recorded, read out from the data of the first track.

Next, when the reproduction of the first track is completed, the MD player 100 starts the reproduction of the track of the second track, and the audio data of the track of the second track is transmitted from the modulating unit 104 to the MD recorder 200. Is output. On the other hand, the system controller 105 of the MD player 100 sends the track name of the track number 2 of the UTC area 1 stored in the storage unit 106 to the modulation unit 104. The modulator 104 outputs the data of the subcode Q in the format shown in FIG. 6 in which the track names are stored in CHAR1 to CHAR6 and TNO is 02h to the MD recorder 200.
Further, the modulation unit 104 converts the data of the subcode Q in which the track name of the second track is stored as title information and the data of the subcode Q in which INDEX is 01h,
While outputting the audio data of the second track,
Output repeatedly while switching.

In the MD recorder 200, the MD player 1
The audio data of the second track sent from 00 is
This is added to the recording MD 201. Also, MD recorder 2
00, the system controller 205 sends the track name of the second track read from the data of the subcode Q sent from the demodulation unit 202 to the storage unit 206 as the track name of the track number on the recording MD 201 of the track being recorded. Store.

Subsequently, as in the case of the second track, reproduction and recording of the subsequent track are performed.

When the reproduction of the last track is completed, the system controller 105 of the MD player 100
04 is set to the stop state. The modulation unit 104 outputs the data of the subcode Q in the format shown in FIG. 18 in which INDEX is FFh (indicating the STOP state) to the MD recorder 200 in accordance with this. Further, the system controller 105 sends the disk name of the UTC area 1 stored in the storage unit 106 to the modulation unit 104. Modulation unit 10
4 is a subcode Q of the format shown in FIG. 6 in which the disk name is stored in CHAR1 to CHAR6 and TNO is set to 00h.
Is output to the MD recorder 200. Subcode Q storing this disc name as title information
And the data of the subcode Q with INDEX being FFh are repeatedly output by the modulation unit 104 while being switched.

The system controller 205 of the MD recorder 200 transmits the subcode Q
When the STOP state of the MD player 100 is recognized from the data of the recording MD 201, the disc name stored in the storage unit 206 and the track name of each track number are recorded.
Record in UTOC area 1. In this case, the UTC area 0
The start address and end address are stored in accordance with the recorded contents.

FIG. 8 shows the configuration of the audio system according to the first embodiment of the present invention.

As shown, the audio system according to the first embodiment includes a CD player 300 and an MD recorder 2.
00. CD player 300 and MD recorder 200
Transmits and receives audio data through the digital audio interface described above.

The CD player 300 includes the mechanical control unit 30
2. It has a signal processing unit 303, a modulation unit 304, a system controller 305 with a built-in storage unit 306, a display unit 307, and an operation unit 308, and plays back the mounted playback CD 301. On the other hand, the MD recorder 200 includes a mechanical control unit 204, a signal processing unit 203, a demodulation unit 202, a system controller 205 with a built-in storage unit 206, a display unit 207, and an operation unit 20.
8 to perform recording on the mounted recording MD 201.

The more detailed configuration of the MD recorder 200 is the same as that shown in FIGS. 1 and 2 above, and the more detailed configuration of the CD player is the recording and compression / compression / decoding from the MD recording / reproducing apparatus shown in FIG. This is almost the same as that in which the portion related to the extension is omitted.

The operation of the audio system according to the second embodiment will be described below.

First, the system controller 305 of the CD player 300 transfers the reproduction CD 301 to the mechanical control unit 30.
2 and rotate from playback CD 301 to playback CD 3
01 is read from the TOC data recorded in the lead-in area No. 01, processed by the signal processing unit 303, and stored in the storage unit 3
06. Then, the system controller 305 of the CD player 300 stops the rotation of the reproduction CD 301, and brings it into a stopped state.

FIG. 9 shows the contents of the TOC stored on the playback CD 301.

As shown, TOC includes POINT, PMIN,
Three PSEC and PFRAME entries are stored for one and the same entry.

When POINT is 01 to 99, POINT indicates a track number, and PMIN, PSEC, PFRAME indicates a start time of the track. When POINT is A0, PMIN indicates the first track number, when POINT is A1, PMIN indicates the last track number, and when POINT is A2, PMIN, PSEC, PFRAME indicates the start time of the lead-out area.

Now, the system controller 305 of the CD player 300 in the stopped state is stored in the storage unit 306.
From TOC data to CD20 for playback to MD20 for recording
The sum of the reproduction times of the tracks to be recorded in No. 1 is obtained, and this is output to the MD recorder 200 via the bus line 351.

The format of the subcode Q shown in FIG. 10 is a format for the lead-in area, and TNO = 00
h represents the subcode Q data of the lead-in area. Also, POINT, P of the subcode Q data
MIN, PSEC, PFRAME have POIN stored in TOC
T, PMIN, PSEC, PFRAME are stored.

When the sum of the reproduction times of the tracks to be recorded from the reproduction CD 301 to the recording MD 201 is transmitted via the bus line 351 in accordance with the format for the lead-in area, the recording is performed with, for example, POINT as a special value. After setting the data that indicates the subcode Q of the data of the sum of the requested playback times, set the sum of the playback times in PMIN, PSEC, and PFRAME, and set the number of recording tracks in MIN and SEC, and the playback time in FRAME. What is necessary is just to set the overflow time of the sum PMIN. Here, the MD has a limit of a maximum of 255 tracks (songs) in the number of recording tracks. Therefore, the MD monitors the number of recording tracks and controls so as not to exceed the limit. Also, by storing the sum of the playback times as the lead-out start time, indicating that the sub-code is the sub-code Q of the data of the lead-out start time with POINT set to A2, PMIN, PSEC,
The sum of the reproduction times may be set in PFRAME.

When the MD recorder 200 is in the recording standby state, the system controller 205 of the MD recorder 200 reads out the sum of the reproduction times of the tracks to be recorded on the recording MD 201 from the data transmitted via the bus line 351. This is compared with the remaining recording time of the recording MD 201 obtained from the start address and end address data of the UTC area 0 of the recording MD 201, and the remaining recording time of the recording MD 201 is recorded on the recording MD 201. If the playback time is equal to or longer than the sum of the reproduction times, it is determined that the recording is OK, and if it is less than the recording time, it is determined that the recording is NG.

If the system controller 205 of the MD recorder 200 determines that the recording is NG, the system controller 205 notifies the CD player 300 of the recording NG via the bus line 351.

When the recording NG is notified, the CD player 30
0 system controller 305 is a playback CD 301
, The number of tracks recorded on the recording MD 201 is reduced by one, and the sum of the reproduction times of the tracks recorded on the recording MD 201 from the reproduction CD 301 is calculated again.
Output to the MD recorder 200 via 51.

[0096] Receiving this, the MD in the recording standby state
The system controller 205 of the recorder 200 again uses the data transmitted from the bus line 351 to record the MD2 for recording.
01 is read, and the remaining recording time of the recording MD 201 is compared with this. If the remaining recording time of the recording MD 201 is equal to or greater than the reproduction time of the track recorded on the recording MD 201, If the recording is less than OK, the recording is determined to be NG, the determination result is displayed on the display unit 207, and the CD player 300 is notified via the bus line 351.

When the system controller 205 of the MD recorder 200 determines that the recording is OK, the system controller 205 sets the MD recorder 200 in the recording state and notifies the CD player 300 of the recording OK via the bus line 351.

The system controller 305 of the CD player 300 notified of the recording OK reproduces the track to be recorded on the recording MD 201 from the reproduction CD 301. The audio data of the reproduced track is sent as an audio sample to the MD recorder 200 via the signal line 350 of the digital audio interface, and is recorded on the recording MD.
Recorded in 201. After recording the audio data, the data on the playback time of each track is stored in the MD UTC
Will be recorded.

[0099] The determination result of recording OK or recording NG is displayed on the display unit 207, so that the user can know this.

The first embodiment of the present invention has been described.

According to the first embodiment, when the track desired by the user to be recorded cannot be completely recorded on the recording MD, the track recorded on the recording MD so as to fit in the recording MD. The number is automatically selected by the MD recorder,
Only selected tracks can be recorded.

Hereinafter, a second embodiment of the present invention will be described.

The audio system according to the second embodiment is the same as the audio system shown in FIG.

The operation of the audio system according to the second embodiment will be described below.

First, the system controller 105 of the MD player 100 controls the MD for reproduction 101 by the mechanical controller 10.
2 to rotate the playback MD1 from the playback MD101.
The data in the UTOC area 0 and the UTOC area 2 is read out, processed by the signal processing unit 103, and stored in the storage unit 106. Then, the system controller 105 of the MD player 100 stops the rotation of the reproduction MD 101, and brings the MD 101 into a stopped state.

Now, the system controller 105 of the MD player 100 in the stopped state stores the information in the storage unit 106.
Of the track recording date and time of each track in UTOC area 2,
The track recording date and time of each track recorded from the reproduction MD 101 to the recording MD 201 is sent to the modulation unit 104. The modulating unit 104 transmits the track recording date and time to the bus line 351.
To the MD recorder 200 via the.

In the format of the subcode Q shown in FIG. 11, ADR YYYY indicates the subcode Q data of the recording date and time, TNO indicates the track number, and YEAR, MONTH, DATE, HOUR, MINUTE, SECOND indicates This shows the track recording date and time.

The system controller 105 of the stopped MD player 100 stores the information in the storage unit 106.
From the data of the start address and end address of the UTOC area 0, the sum of the reproduction time of each track to be recorded from the reproduction MD 101 to the recording MD 201 is obtained, and this is used as the bus line 3
Output to the MD recorder 200 via 51.

In the format of the subcode Q shown in FIG. 12, the subcode Q of the reproduction time is represented by ADR ZZZZ.
This indicates that the data is data, the track number is indicated by TNO, and the reproduction time of the track is indicated by RMIN, RSEC, and RFRAME. When TNO is 00h, RMIN, RSEC,
Reproduction MD 101 to recording MD 20 by RFRAME
1 shows the sum of the reproduction time of each track to be recorded.

On the other hand, the system controller 205 of the MD recorder 200 also
The data in the UTOC area 2 is read, processed by the signal processing unit 203, and stored in the storage unit 206. Also, MD
The storage unit 206 of the system controller 205 of the recorder 200 stores one of the contents of “priority for new recording” and “priority for old recording” set in advance by the user.

Here, when the MD recorder 200 is set to the recording standby state, the system controller 205 of the MD recorder 200 calculates the sum of the reproduction times of the tracks recorded on the recording MD 201 from the data transmitted via the bus line 351. Read, and the recording M obtained from the start address and end address of the UTC area 0 of the recording MD 201
The remaining recording time of D201 is compared. If the remaining recording time of the recording MD 201 is not equal to or greater than the sum of the reproduction times of the tracks recorded on the recording MD 201, the remaining recording time of each track recorded on the recording MD 201 stored in the storage unit 206 is determined. The track recording date and time and the reproduction MD 10 read from the data of the subcode Q received from the MD player 100 by the demodulation unit 202.
1 to the track recording date and time of each track to be recorded on the recording MD 201.

When “priority to new recording” is set in the storage unit 206, the system controller 205 of the MD recorder 200 transmits each track recorded in the recording MD 201 and the reproduction MD 101 to the recording MD 201.
Of the tracks to be recorded in 201, the process of setting the oldest recording date and time as a non-recording target track and the remaining tracks as recording target tracks is performed by adding the reproduction time of the recording target track to the remaining recording time of the recording MD 201 or less. Repeat until. If “older recording is prioritized” is set in the storage unit 206, the recording date and time of the tracks recorded on the recording MD 201 and the tracks recorded from the reproducing MD 101 on the recording MD 201 are the most recent. The process of setting a new track as a non-recording target track and the remaining track as a recording target track is performed by adding the reproduction time of the recording target track to the remaining recording M
This is repeated until the recording time becomes equal to or shorter than the recording time of D201.

If the sum of the reproduction times of the recording target tracks is shorter than the remaining recording time of the recording MD 201, the determination result is stored in the recording unit 206, and the recording MD 20 is recorded.
The track which has become a non-recording target track among the tracks already recorded in No. 1 is deleted from the recording MD 201. Then, the fact that recording is possible is displayed on the display unit 207, and the MD is displayed.
The recorder 200 transitions to the recording state, and notifies the MD player 100 of the recording OK via the bus line 351.

The system controller 105 of the MD player 100 notified of the recording OK transmits the reproduction MD 101 from the reproduction MD 101.
A track to be recorded on the recording MD 201 is reproduced. The audio data of the reproduced track is sent as an audio sample to the MD recorder 200 via the signal line 350 of the digital audio interface, and is recorded on the recording MD 201. However, MD recorder 200
The system controller 205 excludes tracks that have been set as non-recording target tracks from recording targets and does not record even if reproduced.

That is, the system controller 205 records only the recording target track on the recording MD 201 with reference to the determination result in the storage unit 206.

After the recording of the audio data, the track information of the recording time and the recording date and time is recorded in the UTOC of the recording MD 201.

The second embodiment of the present invention has been described.

In the second embodiment, the system controller 205 of the MD recorder 200 sends the data to the system controller 105 of the MD player 100 via the bus line 351 as the recording target track among the tracks of the reproduction MD 101. And the MD player 10
Only the recording target track notified by the 0 system controller 105 may be set as the reproduction target.

According to the second embodiment, according to the second embodiment, when the track desired by the user to be recorded cannot be completely recorded on the recording MD, the track recorded on the recording MD so as to fit in the recording MD. Is automatically selected by the MD recorder, and the MD recorder can be controlled to record only the selected track. In addition, since this selection is performed according to the priority criteria set in advance by the user, the selection can be performed according to the intention of the user.

Hereinafter, a third embodiment of the present invention will be described.

The structure of the audio system according to the third embodiment is the same as that of the audio system shown in FIG.

The operation of the audio system according to the third embodiment will be described below.

First, the system controller 105 of the MD player 100 controls the reproduction MD 101 by the mechanical controller 10.
2 to rotate the playback MD1 from the playback MD101.
01 of the UTC area 0 is read, and the signal processing unit 1
03, and stores the result in the storage unit 106. And
The system controller 105 of the MD player 100 includes:
The rotation of the reproduction MD 101 is stopped, and the reproduction MD 101 is stopped.

The system controller 105 of the MD player 100 in the stopped state stores the information in the storage unit 106.
From the data of the start address and end address of the UTOC area 0, the sum of the reproduction time of each track to be recorded from the reproduction MD 101 to the recording MD 201 is obtained, and this is used as the bus line 3
Send to 51. Also, from the reproduction MD 101 to the recording MD 2
Set the recording mode of each track to be recorded in 01 in the UTC area 0
And sends it to the bus line 351. The recording mode indicates whether the sound to be recorded is stereo with two left and right channels or monaural. The modulation unit 104 outputs the reproduction time of each track to the MD recorder 200 via the bus line 351.

Here, in the format of the subcode data Q data shown in FIG. 12, RMODE indicates the recording mode of the track having the track number indicated by TNO.

When the MD recorder 200 is in the recording standby state, the system controller 205 of the MD recorder 200 changes the recording mode of each track to be recorded on the recording MD 201 from the data transmitted via the bus line 351 to the track number. And read it out and store it in the storage unit 206.

The system controller 205 of the MD recorder 200 reads out the sum of the reproduction times of the tracks to be recorded on the recording MD 201 from the data of the transmitted subcode Q from the demodulation unit 202, and The remaining recording time of the recording MD 201 obtained from the data of the start address and the end address of the UTOC area 0 is compared.

As a result of the comparison, if the remaining recording time of the recording MD 201 is equal to or more than the sum of the reproduction times of the tracks to be recorded, the recording is OK as it is, and the fact is displayed on the display unit 207.

As a result of the comparison, if the remaining recording time of the recording MD 201 is less than the sum of the reproduction times of the tracks to be recorded, the system controller 205
While referring to the recording mode of each track stored in, the recording mode is set in the storage unit so that recording is performed by switching stereo tracks in sequence to monaural, while comparing the sum of the playback time and the remaining recording time, and the result of the comparison When the remaining recording time of the recording MD 201 becomes equal to or longer than the sum of the reproduction times of the tracks to be recorded, the recording is made OK, and the recording mode is switched from stereo to monaural and the track number to be recorded is displayed on the display unit 207. I do. However, the recording time when the recording mode is monaural is the ratio of the recording capacity used when recording the recording mode as monaural to the recording capacity used when recording the recording mode as stereo.
It is assumed that the recording mode is multiplied by the reproduction time of a stereo track.

Then, the MD recorder 200 is shifted to the recording state, and the recording OK is notified to the MD player 100 via the bus line 351. Also, recording OK is displayed on the display unit 207.

The system controller 105 of the MD player 100 notified of the recording OK transmits the reproduction MD 101 from the reproduction MD 101.
A track to be recorded on the recording MD 201 is reproduced. The audio data of the reproduced track is sent to the MD recorder 200 as audio samples via the signal line 350 of the digital audio interface.

The system controller 205 of the MD recorder 200 records each track transmitted as an audio sample on the recording MD 201 in the recording mode previously set in the storage unit 206.

That is, when it is determined that the recording is OK without changing the recording mode, the recording mode is set to monaural for a track in a monaural mode, and the recording mode is set to stereo for a track in a stereo mode. Recording is performed on the recording MD 201 according to the mode. As a result, recording in the monaural mode requires less storage capacity than recording in the stereo mode, so that the recording MD 201 is used more effectively than in the case of recording a track in the monaural mode in stereo. You can do it.

If the remaining recording time of the recording MD is insufficient for the sum of the reproduction times of the tracks to be recorded, the recording mode is switched from stereo to monaural, so that the recording area of the MD is limited. Can record more tracks.

The data of the recording location, recording time and recording mode of the audio data on the recording MD are
Recorded in D's UTOC.

The embodiments of the present invention have been described.

Here, in the above embodiment, a configuration for transmitting an audio signal using a digital audio interface has been described. However, even when an analog or digital audio signal line for transmitting only an audio signal is used, the above-described embodiment is applicable. The form can be applied. In this case, a character string such as a title that can be transmitted by the digital audio interface and information on the disc are not transmitted.

[0138]

As described above, according to the present invention, in accordance with a user's request, a track of audio data read from a certain storage medium is transmitted to a storage apparatus and stored in another storage medium in a reproducing apparatus. In this case, a more convenient operation for the user can be realized, and for this purpose, the track information stored in the storage medium from which the data is read is stored in the storage medium from the playback apparatus to the storage apparatus. It is possible to provide an audio system capable of transmitting audio data on a signal line separate from a transmission line for transmitting the audio data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an audio system according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 3 is a diagram showing the contents of UTOC of MD.

FIG. 4 is a diagram showing the contents of a UTC of an MD.

FIG. 5 is a diagram illustrating the contents of a UTC of an MD.

FIG. 6 is a diagram showing contents of a subcode Q according to the embodiment of the present invention.

FIG. 7 is a flowchart illustrating a procedure of a process performed by the MD recorder according to the embodiment of the present invention.

FIG. 8 is a block diagram illustrating a configuration of an audio system according to the first embodiment of the present invention.

FIG. 9 is a diagram showing the contents of a lead-in area of a CD.

FIG. 10 is a diagram showing the contents of a subcode Q according to the first embodiment of the present invention.

FIG. 11 is a diagram showing contents of a subcode Q according to the second embodiment of the present invention.

FIG. 12 is a diagram showing contents of a subcode Q according to a third embodiment of the present invention.

FIG. 13 is a diagram illustrating a frame format of a digital audio interface.

FIG. 14 is a diagram showing a channel status data format of the digital audio interface.

FIG. 15 is a diagram showing a user data format of a CD of the digital audio interface.

FIG. 16 is a diagram showing a data format of a subcode Q of a CD of the digital audio interface.

FIG. 17 is a diagram illustrating a data format of an MD subcode Q of the digital audio interface.

[Explanation of symbols]

100-MD player, 101-MD for reproduction, 102-mechanical control unit, 103-signal processing unit, 104-modulation unit, 105-system controller, 107-display unit, 108-operation unit,
200-MD recorder, 201-recording MD, 202-demodulation unit, 203-signal processing unit, 204-mechanical control unit, 205-
System controller, 207-display unit, 208-operation unit, 300-CD player, 301-reproduction CD, 302-mechanical control unit, 303-signal processing unit, 304-modulation unit, 305
-System controller, 307-Display unit, 308-Operation unit

Claims (13)

[Claims] 1. A playback device comprising: a playback device; and a storage device, wherein the playback device reads one or more tracks of audio data and a track read from a first storage medium storing track information that is information on the track. Is output to the storage device via a first transmission line, and the storage device is configured to store a track input from the playback device via the first transmission line on a second storage medium. The playback device reads the track information of the track requested to be stored in the storage device from the first storage medium, and transmits predetermined information determined according to the read track information via a second transmission line. And a means for outputting to the storage device, wherein the storage device is configured to output data to the storage device in response to the predetermined information input from the playback device via the second transmission line. Audio system, characterized in that it comprises means for controlling the operation to be performed to store the track input via the first transmission line from the reproducing apparatus to the second storage medium. 2. A first storage medium having a playback device and a storage device, wherein the playback device stores at least one track of audio data and track information that is information indicating a playback time of the track. The track read from
An audio system that outputs to the storage device via a transmission line of the storage device, the storage device stores a track input from the playback device via the first transmission line in a second storage medium, The playback device reads, from the first storage medium, the track information of one or more tracks that require storage in the storage device, and information that can calculate the sum of the playback times of the tracks indicated by the track information, Means for outputting to the storage device via a second transmission line, the storage device comprising: a sum of a reproduction time calculated from information input from the reproduction device via the second transmission line; An audio system, comprising: a recording control unit that compares whether recording is possible on a second storage medium and determines whether or not the recording requested by the reproduction device is possible. 3. The audio system according to claim 2, wherein said playback device has a playback control unit, and said recording control means of said storage device is connected to said playback device via said second transmission line. If the sum of the reproduction times of the two or more tracks calculated from the input information is less than or equal to the recordable time of the second storage medium, it is determined that the recording requested by the reproduction device is not possible, The playback control unit of the playback device notifies the playback control unit via the second transmission line that recording is not possible. When the playback control unit of the playback device is notified that recording is disabled, the storage device An audio system, wherein the number of tracks to be stored is reduced. 4. A first storage medium having a playback device and a storage device, wherein the playback device stores at least one track of audio data and track information that is information indicating a playback time of the track. The track read from
An audio system that outputs to the storage device via a transmission line of the storage device, the storage device stores a track input from the playback device via the first transmission line in a second storage medium, The playback device has means for reading the track information of one or more tracks for which the storage device requests storage from the first storage medium and outputting the track information to the storage device via a second transmission line. The storage device, via the second transmission line, when the recordable time of the second storage medium is less than the sum of the reproduction times of the plurality of tracks requested to be recorded by the reproduction device. From the one or more tracks requested to be recorded by the playback device, the sum of the playback time of the selected track is stored in the second storage according to the priority order according to the recording time indicated by the input track information. Select one or more tracks so that less recordable hours of the body, an audio system characterized by comprising a recording control means for recording in the second storage medium. 5. The audio system according to claim 4, wherein the recording control means is configured to set a recordable time of the second storage medium to be less than a sum of a reproduction time of a track requested to be recorded by the reproduction device. In the case of, the priority according to the recording time indicated by the track information input via the second transmission line among the tracks already recorded on the second storage medium is the track requested to be recorded. The lower tracks are erased in order from the one with the lowest priority until the recordable time of the second storage medium is equal to or longer than the reproduction time of the track requested to be recorded by the reproduction device, and An audio system for recording a track requested to be recorded on a second storage medium. 6. A first storage medium having a playback device and a storage device, wherein the playback device stores at least one track of audio data and track information that is information indicating a playback time of the track. The track read from
An audio system that outputs to the storage device via a transmission line of the storage device, the storage device stores a track input from the playback device via the first transmission line in a second storage medium, The playback device has means for reading the track information of one or more tracks requesting storage in the storage device from the first storage medium, and outputting the track information to the storage device via a second transmission line, The storage device may convert each of the plurality of tracks requested to be recorded by the playback device into a monaural audio signal when the track information input via the second transmission line indicates a monaural audio track. The track information recorded as a track on the second storage medium and input via the second transmission line is a stereo audio track. Audio system characterized by comprising a recording control means for recording in the second storage medium as a stereo audio track to indicate. 7. The audio system according to claim 1, wherein the first storage medium is a mini disc (MD), and the track information is stored in the MD. An audio system characterized by being included in UTOC. 8. The audio system according to claim 1, wherein the first storage medium is a compact disk (CD), and the track information is stored on a CD. An audio system characterized by being included in the TOC. 9. The method of claim 1, wherein the at least one track of the audio data comprises:
What is claimed is: 1. A reproducing apparatus for outputting a track read from a storage medium storing track information which is information on the track to an external device, comprising: means for reading a track and the track information from the storage medium; Means for outputting to the outside from mutually different output terminals. 10. The reproducing apparatus according to claim 9, wherein the storage medium is a mini disc (MD), and the character string information is included in UTC stored on the mini disc. Playback device. 11. The reproducing apparatus according to claim 9, wherein the storage medium is a compact disc (CD), and the character string information is included in a TOC stored on the compact disc. Playback device. 12. A storage device for storing at least one track of audio data and track information set for the track in a storage medium, wherein the track and the track information are input to different input terminals. And a means for storing the input track in the storage medium and storing the input track information in the storage medium as track sequence information to be set for the stored track. Storage device. 13. The storage device according to claim 12, wherein the storage medium is a mini disk (MD), and the character string information is stored in a UTC stored in the mini disk. apparatus.