KR19990007073A - Transmission method and transmission system - Google Patents

Abstract

According to the present invention, there is provided a transmission system for transmitting compressed voice data selected by a user from a compressed voice data stored in a server to a customer located far away from the server. If the state of the recording medium loaded on the customer side is normal and / or the amount deposited on the customer side is sufficient to be collected by the user, the selected compressed audio data is transmitted from the server do. If the state of the recording medium loaded on the customer side is not normal and / or the balance deposited on the customer side is an amount not enough to be collected by the user, the selected compressed audio data is prohibited from being transmitted from the server do. Therefore, it is possible to prevent a problem that a meaningless collection is generated for a customer.

Description

Transmission method and transmission system

The present invention relates to a transmission method and a transmission system in which compressed audio data is transmitted without being expanded, the data is recorded as a compressed signal on the receiving side, the status of the recording medium is detected, an error is notified, and an error message is displayed .

A magneto-optical disk known as a mini disk (trademark), which is a disk-type recording medium that can be recorded and reproduced and has a diameter of about 64 mm housed in the cartridge, is known. The magneto-optical disk can record a stereo audio signal continuously for about 70 minutes according to the ATRAC (Adaptive Transform Acoustic Coding) method. Unlike a conventional digital audio disc known as a compact disc (trademark), this magneto-optical disc can record information, and thus can replicate voice data.

As in the conventional digital audio disc, a TOC (Table-Of-Contents) information area for managing the recorded audio data is provided to the magneto-optical disc in addition to the area for recording the audio data, Allows random access to voice data. Therefore, if the audio data is overwritten on the magneto-optical disk containing the recorded audio data, the number of songs can be deleted or edited by rewriting the TOC information without erasing the actual audio data.

In order to record voice data compressed to about 1/5 on the magneto-optical disk, compressed voice data is directly stored in the server and read therefrom and recorded on the server side hard disk, , A voice dubbing system in which compressed voice data is transmitted without being expanded may be considered.

However, in such a voice dubbing system, a write-protect pawl in which the recording capacity of the magneto-optical disc is insufficient, the recording area is partially or totally destroyed, a read-only disc is inserted, or a cartridge of the magneto- If locked, the recording operation may not be executed normally. However, if the user dubs data from the compact disc to the magneto-optical disc, if the state of the loaded magneto-optical disc is determined to alert the recording device, Since the user can interrupt or reinitialize the dubbing operation even if started, such a defective state can be recovered.

On the other hand, in a voice dubbing system in which voice data transmitted from a server is supplied to a remote location via a transmission route, once the user requests a desired song number, the server transmits voice data do.

If the user unintentionally loads the reproduction-only disc into the recording apparatus, the transmitted audio data can not be recorded on the reproduction-only disc, and thus the transmitted audio data can not be dubbed to the customer side.

Since the server charges a fee for the transmitted voice data, the user is continually and permanently lost.

Moreover, since the transmitted voice data is in the form of uncompressed compressed data, the user can not hear the voice data tentatively, and thus the transmitted voice data becomes useless to the user.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording apparatus that can avoid a meaningless request and detect a state of a recording medium loaded on a recording apparatus side and request transmission of audio data to a server if the detection state is good, So as to provide a dubbing system that does not require transmission.

It is still another object of the present invention to provide a recording apparatus that detects a deposit deposited on the recording apparatus side, that is, a deposit of a hardening inserted on the recording apparatus side or an inserted prepaid card, Or otherwise a transmission request is not made to the server side.

1 is a block diagram of an overall dubbing system embodying the present invention.

2 is a diagram showing a data structure on a magneto-optical disk embodying the present invention.

Fig. 3 is a diagram showing a data structure on a magneto-optical disk similarly embodying the present invention.

4 is a diagram showing a data structure for a U-TOC sector (0) which is a management area on the magneto-optical disk embodying the present invention.

5 is a diagram showing a data structure of a slot on a U-TOC that is a management area on a magneto-optical disk embodying the present invention.

6 is a diagram showing a data structure of a track mode on a U-TOC which is a management area on a magneto-optical disk embodying the present invention.

Fig. 7 is a diagram showing a connection state of each slot on the U-TOC which is a management area on the magneto-optical disk embodying the present invention.

8 is a diagram showing the data structure of the U-TOC sector 1 which is a management area on the magneto-optical disk embodying the present invention.

9 is a diagram showing the data structure of the U-TOC sector 2 which is a management area on the magneto-optical disk embodying the present invention.

10 is a diagram showing the data structure of the U-TOC sector 4 which is a management area on the magneto-optical disk embodying the present invention.

11 is a detailed block diagram of the recording apparatus shown in Fig.

12A is a block diagram showing a connection state between the audio transmission unit 10 and the recording unit 20 according to the present invention.

12B shows the compressed audio data ATRAC transmitted from the audio transmission unit 10 to the recording unit 20 and the request signal Data Req transmitted from the recording unit 20 to the audio transmission unit 10 and the processing timing on the recording unit It is a timing chart.

12C is a timing chart showing the timing at which the command signal (Command) transmitted from the voice transmission unit 10 to the recording unit 20, the approval signal ACK transmitted from the recording unit 20 to the voice transmission unit 10, Chart.

13 is a flowchart showing dubbing processing by the recording section 20 embodying the present invention.

14A is a diagram showing management information of a music program stored in a server embodying the present invention.

14B is a diagram showing management information of the music program recorded on the optical disc D embodying the present invention.

15A is a timing chart of compressed audio data (ATRAC) transmitted from the audio transmission unit 10 to the recording unit 20. Fig.

15B is a timing chart of a request signal (Data Req) transmitted from the recording unit 20 to the voice transmission unit 10. Fig.

Fig. 15C is a timing chart showing a command signal (Command) transmitted from the voice transmission unit 10 to the recording unit 20. Fig.

15D is a timing chart showing an acknowledgment signal (ACK) transmitted from the recording unit 20 to the audio transmission unit 10. [

15E is a timing chart showing processing timings on the recording unit.

16A is a timing chart showing a command signal (Command) transmitted from the voice transmission unit 10 to the recording unit 20. Fig.

16B is a timing chart showing an acknowledgment signal (ACK) transmitted from the recording unit 20 to the voice transmission unit 10. [

16C is a timing chart showing the timing of processing on the recording unit.

16D is a diagram showing the contents of management information (TOC) formed on the optical disc D. FIG.

17A is a timing chart showing a command signal (Command) transmitted from the voice transmission unit 10 to the recording unit 20. Fig.

17B is a timing chart showing an acknowledgment signal (ACK) supplied from the recording unit 20 to the audio transmission unit 10. Fig.

17C is a timing chart showing the timing of processing on the recording unit.

17D is a chart showing the contents of management information (TOC) formed on the optical disc D. FIG.

18A is a timing chart showing a command signal (Command) transmitted from the voice transmission unit 10 to the recording unit 20. Fig.

18B is a timing chart showing an acknowledgment signal (ACK) transmitted from the recording unit 20 to the audio transmission unit 10. Fig.

18C is a timing chart showing processing timings on the recording unit.

18D is a chart showing the contents of the management information (TOC) formed on the optical disc D. Fig.

FIG. 19 is a diagram showing contents recorded on the optical disc D. FIG.

20 is an overall block diagram showing a second embodiment of the present invention.

Fig. 21 is a flowchart showing the checking procedure before the recording operation by the recording unit 20. Fig.

DESCRIPTION OF REFERENCE NUMERALS

1,40. Audio Dubbing System 2. Connector

10,10a. Voice transmitter 11. Main controller

12. Server 13. Operational Input

14. Display 15. Pre-paid card reader

20,20a. Memory 21. memory controller

22. RAM 23. Coding / decoding circuit

32. System controller

According to an aspect of the present invention, there is provided a transmission / reception system including a transmitter and a receiver, wherein the transmitter includes: memory means for storing a plurality of compressed data; transmission means for transmitting compressed data selected by the user; The receiver includes receiving means for receiving the compressed data transmitted from the transmitter, recording means for recording the compressed data on the recording medium, detection means for detecting the write prohibition information of the recording medium, detection means for detecting Display means for displaying an error message to notify the user of the recording prohibition in response to the result; and transmission means for transmitting the request information to the transmitter if the recording medium is normal corresponding to the detection result by the detection means. A transmission / reception system including a transmitter and a receiver is provided.

According to another aspect of the present invention, there is provided a recording medium including: a detecting step of detecting recording prohibition information of a recording medium; a display step of displaying an error message to notify a user of a result of prohibition of writing in response to the detection result; And transmitting the request information to the server if the medium is normal; a receiving step of receiving the compressed data transmitted from the server; and a recording step of recording the compressed data to the recording medium.

In the audio data recording method and recording apparatus according to the present invention, if the audio data can not be normally recorded, an error message is displayed on the display means. Thus, it is possible to display whether or not the recording can be performed correctly before recording on the recording medium, and thus it becomes possible to reliably record the audio data. Further, according to the audio data recording method and recording apparatus of the present invention, since an error message is displayed, the user can adjust the content of the error.

A preferred embodiment of a voice dubbing system according to the present invention will be described in detail with reference to the drawings.

1 shows a voice dubbing system embodying the present invention. The audio dubbing system 1 includes a voice transmission unit 10 including a main controller 11, a server 12, an operation input unit 13 and a display unit 14, a recording unit 20 for recording voice data on a portable recording medium, And a connection line 2 for connecting the voice transmission unit 10 and the recording unit 20 to each other.

In this voice dubbing system 1, voice data is previously stored in the server 12 of the voice transmission section 10, and the user selects the desired voice data from the voice data stored in the server 12 for recording on the recording medium will be.

That is, the voice dubbing system 1 is a system for transmitting the content of a song to a user by recording voice data on a recording medium held by a user, instead of transmitting the contents of voice data stored in a medium such as a compact disk or an audio tape to be. For example, this audio dubbing system 1 may be installed in a music studio for railroad stations or retail stores or for content management purposes to provide the user with the contents of a song for which a tax is to be added.

An outline of the content supply method of the audio dubbing system 1 will be described below.

In the server 12 of the audio dubbing system 1, the song contents of the songs such as Top 100 of the latest hit chart, which last for several minutes, are stored as audio data. The user confirms the content supplied by the audio dubbing system 1 by the display unit 14 and, if he / she finds the desired content, selects one or a plurality of contents using the operation input unit 13. [ The user loads the recording medium D into the recording unit 20 and then operates the operation input unit 13 to start recording.

If the user initiates the recording operation, the main controller 11 of the audio transmission unit 10 supplies the audio data of the content designated by the user to the recording unit 20 from the contents stored in the server 12. [ The recording unit 20 records the audio data supplied from the audio transmission unit 10 in the recordable area of the recording medium.

When the recording of the audio data of the contents desired by the user is finished, the audio dubbing system 1 ends the supply of the contents.

Although the server 12 is included in the voice transmission unit 10 in FIG. 1, the server 12 may be installed in an information center located at a remote location. The server 12 may also be connected to the main controller 11, An operation input unit 13, and a recording unit 20, as shown in FIG.

In the following description of the audio dubbing system 1, it is assumed that the recording medium processed by the audio dubbing system 1 of this embodiment is a recordable and reproducible magneto-optical disk provided in the form of a mini disk (trademark) .

This magneto-optical disk referred to as a mini disk is a disk-shaped recording medium having a diameter of approximately 64 mm housed in a cartridge, and can record approximately 74 minutes of stereo audio data using an ATRAC (Adaptive Transform Acoustic Coding) method. This magneto-optical disk called a so-called mini disk is hereinafter simply referred to as an optical disk (D).

Since the audio dubbing system 1 records the compressed audio data according to the ATRAC scheme in the optical disc D, the audio data of the content stored in the server 12 is compressed in advance according to the ATRAC scheme. The audio data compressed according to the ATRAC scheme is directly recorded on the optical disc D without decoding or encoding the audio data. The voice data compressed by the ATRAC method is hereinafter referred to as ATRAC data. Therefore, the connection line 2 used to transmit the voice data from the voice transmission unit 10 to the recording unit 20 transmits ATRAC data. Note that control commands or command data such as TOC (Table-Of-Contents) data of the optical disc D are transmitted through the connection line 2 in accordance with a transmission protocol to be described later.

The data format of the optical disc D used in the audio dubbing system 1 will now be described.

The data may be recorded on the optical disc D in units corresponding to an integer multiple of one cluster, as shown in Fig. Note that when reproducing ATRAC data recorded in one cluster, a voice signal of about 2.04 seconds is generated.

1 cluster is composed of three linking sectors, one sub-data sector, and 32 main sectors for recording audio data compressed by the ATRAC scheme, i.e., a total of 36 sectors. One sector is a unit of 2352 bytes of data.

Since the format of the optical disc D uses an error correction method of an ACIRC (Advanced Cross Interleaving Reed Solomon Code) scheme, the linking sector is used as a sector allocated to perform error correction interleaving in the cluster. That is, the connecting sector is an extra sector considering interleaving when error correction is performed so that data rewriting is performed in cluster units.

The sub data sector is a storage area.

The optical disc D processes 424-byte data compressed in accordance with the ATRAC method in a unit called a sound group. This sound group allocates 212 bytes of data for each of the left and right channels. At the time of expansion, the sound group according to the compressed data corresponds to 512 samples of the left and right channels. 512 samples of this data correspond to 2048-byte data, specifically 512 samples x 16 bits x 2 channels / 8 bits = 2048 bytes.

As shown in FIG. 3, 11 of the sound groups constitute 2 sectors.

The recording area of the optical disc D is divided into a program area for recording audio data compressed according to the ATRAC scheme, a user table-area (U-TOC) area for recording management data for managing audio data recorded in the program area, (Pre-mastered Table-Of-Contents) area as a lead-in area, and a P-TOC area as a lead-in area.

In this optical disc D, the songs can be deleted or edited by rewriting the U-TOC information instead of physically deleting the actual music data for rewriting. For example, in the case of the optical disc D on which five tunes are recorded, if the start address and the end address of the third tunes are designated as the recordable area, the third tunes can not be reproduced. Therefore, when ATRAC data is recorded on the optical disc D, the U-TOC information needs to be rewritten at the same time. This U-TOC will be described below. The units of audio data recorded on the optical disc D are simply referred to as 'tracks'. This track is a unit of a song corresponding to the content of the song supplied by the audio dubbing system 1 described above.

The U-TOC of the optical disc D is composed of U-TOC sector 0 to U-TOC sector 15 having a total of 16 sectors. The U-TOC sector n (where n is 1 to 15) is simply U-TOCn.

Fig. 4 shows data recorded in U-TOC0. The data recorded in U-TOC0 is divided into bytes and represented as slots for convenience. Each slot is designated by a number of slots of 1 to 4 horizontally and a number of 0 to 587 vertically in FIG. The same applies to U-TOC1 and the like.

In U-TOC0, 12 bytes of header data are recorded next to ClusterH and ClusterR that specify the address of TOC0. The TOC0 includes Maker code indicating the maker of the optical disc D, Model code indicating the model of the optical disc D, FirstTNO indicating the track number of the first track of the optical disc D, , LastTNO indicating the track number of the last track is recorded. In U-TOC0, Used Sectors indicating a use state of a sector and DiscSerialNo indicating a serial number of the optical disk (D) are recorded in a slot 8x4 and a slot 10x4, respectively.

In the U-TOC0, a DiscID indicating the ID number of the optical disc (D) starting from the slot 11x1, a slot in which the start address of the area for recording the defect address information reproduced on the optical disc (D) A pointer P-EMPTY (Pointer for Empty Slot) for indicating a use state of the slot, a slot in which a start address of an area used for managing the recordable area is recorded A Pointer for free Area (P-FRA) is also recorded. In the U-TOC0, a pointer P-TNOn designating a slot in which the start address of each track recorded in the optical disc D from the slot 12x2 to 75x4 is recorded is also recorded, where n is the number of Indicates the track number. Since 255 tracks can be provided on the optical disk D, n is an integer from 1 to 255.

In the U-TOC0, the start address and end address of each track, link information (Link-P), and track mode (Trackmode) are recorded in 78 x 1 to 587 x 4. U-TOC0 is also recorded with a 255x4 slot to record the start and end addresses. The start and end addresses are recorded in the slots associated with each track.

Therefore, the pointer recorded in each of the P-DFA, P-EMPTY, and P-FRA indicates a slot of the start address indicated from the slot 78 × 1.

The start and end addresses are represented by 3 bytes = 24 bits as shown in FIG. In the start and end addresses, the addresses of the cluster address, the sector address, and the sound group are recorded in the first 14 bits, the last 6 bits, and the last 4 bits, respectively.

The track mode (Trackmode) is represented by 1 byte = 8 bits, as shown in Fig. In the track mode (Trackmode), the recording protection information, the copy protection information, the generation information, the audio information, the deletion preservation information, the mono or stereo information and the emphasis information are recorded in the first bit, the second bit, the third bit, 5 and the sixth bit, the seventh bit and the eighth bit, respectively. That is, relevant information pertinent to each track is recorded in the track mode (Trackmode).

In the case where the same track is not recorded as a continuous data stream on the optical disc, that is, when data of the same track is separately recorded in the recording area of the optical disc, the connection information (P-Link) It is a pointer used for tracking, which is recorded. For example, if, when playing a track, data from the start address of slot 586 × 1 needs to be played after the end address represented in slot 78 × 1, the connection information (Link-P) Indicates slot 581 x 1.

That is, in the optical disc D, the data does not necessarily have to be recorded in the recording medium as a continuous data stream, and continuous data streams can be recorded separately. If the data is recorded separately, the data continuity is indicated by this connection information (p-Link), by temporarily storing the read data in the memory at the time of reproduction and writing the data into the memory at a rate faster than the data reading speed, Continuous data can be reproduced without interruption.

If data shorter than the recording program is overwritten with the previous recording data, efficient recording can be performed by designating an extra area as the recordable area P-FRA without deleting an extra area.

Referring now to Fig. 7, which is an example of the recordable area P-FRA, a method of connecting the separation areas will now be described.

The area designated by the start point address and the end point address of the slot 18h indicated by the connection information of the slot 03h can be determined as the recordable area. Further, by tracking the slot 1Fh indicated in the connection information of the slot 18h, the area indicated by the start point address and the end point address of the slot 1Fh can be determined as the recordable area.

Also, by tracking the slot 2Bh indicated in the connection information of the slot 1Fh, the area indicated by the start point address and the end point address of the slot 1Fh can be determined as the recordable area. As described above, by tracking the slot address recorded in the connection information, the slot is tracked until the connection information is equal to 00h.

By tracing a slot starting from the slot indicated by the P-FRA until the connection information is equal to Null (= 00h), it is possible to connect a plurality of divided parts constituting a track separately recorded on the disk onto the memory It is possible.

Although the P-FRA has been taken as an example for illustrative purposes, this separately divided portion can likewise be connected to P-DFA, P-EMPTY and T-TNO0 to 255.

Fig. 8 shows data recorded in the U-TOC1.

In the U-TOC 1, the name of each track and the name of the optical disc D are managed as a whole.

If the recording track is audio data, the name of the optical disk D as a whole and the name of each track correspond to the album title, the name of the player, and the name of the music.

The character information of each track is recorded in a slot designated by P-TNAn, where n is 1 to 255, and if there are many characters, the connection information is used to connect a plurality of slots for recording.

Fig. 9 shows data recorded in the U-TOC2.

In the U-TOC 2, the recording time and data of each program recorded in the program area are managed in a similar configuration to the U-TOC 0.

Fig. 10 shows data recorded in the U-TOC 4. Fig.

In the U-TOC 4, the name of each program recorded in the program area is managed in a similar configuration to that of the U-TOC0, and Japanese syllable characters and Chinese characters can be used as the fonts of the names of the entire optical discs D.

11, the configuration of the audio dubbing system 1 to which the configuration of the recording unit 20 is added as described above will be described in detail.

11 shows a block diagram of a voice dubbing system 1 embodying the present invention. The audio dubbing system 1 comprises a voice transmission unit 10, a recording unit 20, and a connection line 2 for connecting the voice dubbing system 1 and the recording unit 20. The voice transmission unit 10 has a main controller 11, a server 12, an operation input unit 13, and a display unit 14. The recording unit 20 is used for recording audio data on a portable recording medium.

The recording section 20 includes a random access memory (RAM) 22 for storing data transmitted from the audio transmission section 10 and a memory controller 21 for controlling the RAM 22. [ The recording section 20 further includes a coding / decoding circuit 23 for decoding and encoding data, a magnetic head driving circuit 24 for driving the magnetic head 25, (Not shown). The recording section 20 also includes a focus error signal FE from the reflected light detected from the optical pickup 26 and an RF amplifier 27 for reproducing the push-pull signal PP and the magneto-optical playback signal MO . The recording section 20 also includes an address decoder (not shown) for reproducing a signal corresponding to a wobble of a groove formed in a guide groove of the optical disc D in accordance with a push-pull signal PP from an RF amplifier 27 decoding the ADIP 28 and a spindle motor 29 for rotationally driving the optical disk D as shown in FIG. The recording section 20 also includes a thread section 30 for radially moving the optical pickup 26 along the radius of the optical disc D.

The recording unit 20 includes a servo circuit 31 for controlling the focus servo, the thread servo and the spindle servo in accordance with the focus error signal FE and the push-pull signal PP, the memory controller 21 and the encoder / decoder circuit 23 And a system controller 32 for controlling the servo circuit 31.

The optical pickup 26 irradiates the optical disk D with laser light through the laser diode and the objective lens. The optical pickup 26 also detects reflected light from the optical disk D by a photodetector in order to transmit the detection current to the RF amplifier 27. [

The RF amplifier 27 generates a focus error signal FE, a push-pull signal PP, and a magneto-optical reproduction signal MO in accordance with the detection current from the photodetector. The RF amplifier 27 sends the generated focus error signal FE to the servo circuit 31 and at the same time sends the push-pull signal PP to the address decoder 28 and the servo circuit 31, To the encoding / decoding circuit 23.

The servo circuit 31 outputs the focus error signal FE and the push-pull signal PP in accordance with the supplied focus error signal FE and the push-pull signal PP in order to perform tracking and focus servo control of the light beam emitted to the optical disc D. To drive the objective lens. The servo circuit 31 drives the thread portion 30 in accordance with the push-pull signal PP to perform thread servo control for driving the optical pickup 26 radially of the optical disc D. The servo circuit 31 performs spindle servo control for driving the spindle motor 29 so that the optical disc D is rotated at a constant linear velocity CLV in response to a spindle error signal from an optical disc rotation detection circuit (not shown).

The address decoder 28 reproduces the address information from the wobble signal corresponding to the home wobble formed in the guide groove of the optical disc D.

The encoding / decoding circuit 23 converts the magneto-optical reproduction signal MO from the RF amplifier 27 into a 2-level signal, and outputs the 2-level signal to an Eight-to-Fourteen Modulation (EFM) And concurrently error-corrects and decodes it according to Cross-Interleaved Reed-Solomon Coding (CIRC). The encoding / decoding circuit 23 adds an error correction code to the recording signal supplied from the memory controller 21 according to the CIRC method, modulates the resulting signal according to the EFM scheme, and supplies the recording signal to the magnetic head driving circuit 24 ).

The magnetic head driving circuit 24 drives the magnetic head 25 in accordance with a recording signal from the encoding / decoding circuit 23 to apply a modulating magnetic field to the optical disc D by recording a recording signal.

The memory controller 21 controls the writing and reading of the ATRAC data stored in the RAM 22. [ The memory controller 21 temporarily stores the ATRAC data supplied from the voice transmission unit 10 in the RAM 22 and then supplies the temporarily stored data to the encoding /

The system controller 32 performs overall control of the recording unit 20. [ For example, the system controller 32 controls the memory controller 21, the encoding / decoding circuit 23 and the servo circuit 31. The system controller 32 also controls circuits used to exchange control data with the voice transmitter 10, as will be described below.

With this structure, the recording unit 20 of the audio dubbing system records the ATRAC data supplied from the audio transmission unit 10 on the optical disk D.

A method of exchanging data between the recording unit 20 of the audio dubbing system 1 and the audio transmitting unit 10 will now be described with reference to Figs. 12A to 12C.

The audio dubbing system 1 has a connection line 2 connecting the audio transmission unit 10 and the recording unit 20 to each other. The connection line 2 includes an ATRAC line 2a for transmitting ATRAC data sent from the voice transmission unit 10 to the recording unit 20 as compressed voice data and an ATRAC line 2a for transmitting the ATRAC data request from the recording unit 20 to the voice transmission unit 10. [ And a Data Req line 2b for transmitting a signal (Data Req).

The ATRAC data corresponding to the contents stored in the server 12 is sent from the main controller 11 of the voice transmission unit 10 to the memory controller 21 of the recording unit 20 via the ATRAC line 2a. The ATRAC data request signal (Data Req) indicating the request of the ATRAC data is sent from the system controller 32 of the recording unit 20 to the main controller 11 of the voice transmission unit 10 via the data req line 2b Loses. That is, since the ATRAC data is transmitted in units of predetermined capacities, the recording unit 20 sends the request signal (Data Req) to the audio transmission unit 10 so that if all of the ATRAC data already written in the RAM 22, (D), it requests the next data. If the ATRAC data read out from the RAM 22 is not recorded on the optical disk D, the request signal to the audio transmission unit 10 is set to the transmission waiting state.

The time chart of FIG. 12B shows the relationship between the ATRAC data and the request signal (Data Req).

If the recording state of the recording unit 20 is normal, recording unit 20 supplies the request signal (Data Req) at time (t ₁₁₎ to the voice transmitter 10. When the request signal (Data Req) supplied, the audio sending unit 10 at time (t ₁₂₎ starts to supply the ATRAC data of a predetermined amount to the recording unit (20). When the ATRAC data is supplied, the recording section 20 stops supply of the request signal (Data Req) at time (t _13).

Further, the recording state of the recording unit 20 is not OK, because time, as shown in (at t ₁₄ t _15), any request signal (Data Req) from Fig recording unit 20 is supplied to the audio transmitter 10, which ATRAC data is also not transmitted from the voice transmission unit 10 to the recording unit 20. [ If the request signal (Data Req) is not continuously supplied from the recording unit 20 for a predetermined time, the voice transmission unit 10 stops the recording operation.

The time area from the time t ₁₅ to the time t ₁₆ indicates the time duration during which the supply of the ATRAC data to the recording unit 20 is normal.

If the request signal (Data Req) is supplied from the time t ₁₆ to the time t ₁₇ and the ATRAC data is not supplied from the voice transmission unit 10 for a predetermined time, the recording unit 20 stores the ATRAC data A data write standby state such as a recording stop state is set. If ATRAC data is transmitted, the recording unit 20 starts the write operation as indicated from time t ₁₇ . If the writing standby state continues for a predetermined time, the audio dubbing system 1 determines that some problem has occurred and stops the processing.

Therefore, the audio dubbing system 1 can reliably record ATRAC data by the recording unit 20 that supplies the ATRAC data request signal (Data Req) to the audio transmission unit 10. [

12A, the audio dubbing system 1 further includes a command line 2c (not shown) for transmitting a control command such as TOC information or other command data supplied from the audio transmission unit 10 to the recording unit 20, And an ACK line 2d for transmitting an acknowledgment signal ACKNOWLEDGE of command data transmitted from the recording unit 20 to the voice transmission unit 10. [

The TOC information generated by the main controller 11 of the audio transmission unit 10 or the command data such as the data size of various contents of ATRAC data is sent to the system controller 32 of the recording unit 20 via the command line 2c Loses. The ACKNOWLEDGE is transmitted from the system controller 32 of the recording unit 20 to the main controller 11 of the voice transmitting unit 10 via the ACK line 2d, if the recording unit 20 finishes the processing related to the command data. .

Specifically, the relationship between the command data and the acknowledge signal ACKNOWLEDGE is shown in the timing chart of Fig. 12C.

First, the voice transmitter 10 sends the recording unit 20, a predetermined command data at time (t _21). When the supply of the command data is finished, recording unit 20 performs processing related to the supplied command data at time (t _22). When processing is completed with respect to the supplied command data, the recording unit 20 supplies the voice transmitter 10 on the acknowledgment signal (ACKNOWLEDGE), time (t _23). Upon receiving the acknowledgment signal ACKNOWLEDGE, the voice transmission section 10 supplies a reset command to the recording section 20 at time t ₂₄ . On receipt of a reset command, the recording unit 20 terminates the supply of the acknowledgment signal (ACKNOWLEDGE) at time (t _25). If the command data is supplied from the recording unit 20 for a predetermined time and the acknowledgment signal ACKNOWLEDGE is not supplied, the voice transmitting unit 10 regards that some problem has occurred and stops the processing.

Table 1 below shows command data supplied from the voice transmission unit 10 to the recording unit 20 via the command line 2c.

Command Name Data of command (1 byte) function SETUP One The recording section 20 is set to the recording stop state START 2 Start recording STOP 3 End processing TOC0info 4 TOC0 information (track size and track mode) ACK-RESET 8 ACK RESET ALRIGHT 0b Check recording status Title 83 Title Information

The setup command (SETUP) is an instruction to set the recording unit 20 to a recording standby state, that is, a recording stop state. Upon reception of the setup command (SETUP), the recording unit 20 is in the recording stop state. Specifically, this setup instruction (SETUP) is given as one byte of data.

The start command (START) is an instruction to start recording of ATRAC data. Upon receipt of the start command (START), the recording unit 20 starts recording ATRAC data on the optical disk (D). Specifically, this start command (START) is given as two data of one byte.

The stop command (STOP) is an instruction for instructing the end of the processing of the recording unit 20 associated with the command. Upon reception of the stop command STOP, the recording section 20 stops recording started by the start command (START). Specifically, the stop command (STOP) is given as three data of one byte.

The TOC0 information command (TOC0info) is an instruction indicating the information recorded in the U-TOC sector (0) of the optical disc (D). At the time of receiving the TOC0 information command (TOC0 info) and information on the track size and track mode following this command, the recording section 20 reads the start and end addresses of ATRAC data from the track size to record the TOC data in the U- .

That is, the TOC0 information is uniquely generated by the recording unit 20 itself and is recorded on the optical disc D. However, if ATRAC data of a plurality of contents is supplied from the audio transmission unit 10, these data are transmitted as a continuous data stream to the recording unit 20 so that the coupling point between the contents can not be distinguished, Can not be. Therefore, the audio transmitting unit 10 transmits a track mode indicating the data size indicating the data stream length of the data corresponding to each content and the track size as a TOC0 information command (TOC0info). In accordance with this TOC0 information command (TOC0info), the recording section 20 generates TOC0 information to be recorded on the optical disk D. [

Specifically, the track number TOC0 information command (TOC0info) is given as one byte of four data.

The command TNO is an instruction indicating the track number of the ATRAC data to be recorded. Upon receiving the track number command TNO and the track number following this command, the recording unit 20 performs processing for the next title command (Title) in the track number. Specifically, the track number command (TNO) is given as 1 byte 5 data.

The reset command (ACK-RESET) is an instruction to reset the acknowledge signal (ACKNOWLEDGE) supplied from the recording section (20). When the reset command (ACK-RESET) is supplied, the recording unit 20 stops supplying the acknowledge signal ACKNOWLEDGE. Specifically, the reset command (ACK-RESET) is given as 1 byte 8 data.

The recording status confirmation command (ALRIGHT) is an instruction to confirm the recording status of the recording unit 20. [ Upon receipt of the recording status confirmation command (ALRIGHT), the recording section 20 supplies the acknowledgment signal (ACKNOWLEDGE) to the audio transmission section (10). Specifically, the recording status confirmation command (ALRIGHT) is given as 1-byte 0b data.

The title command (Title) is an instruction to supply the title information to be recorded in the TOC1 and TOC4 of the optical disk (D). Title command (Title) Next, character string information and character data are supplied. Upon receiving the string information and the character data, the recording unit 20 records the title information for each track of TOC1 and TOC2 of the optical disc D. [ Specifically, the title command (Title) is given as 1 byte 83 data.

The processing contents of the audio dubbing system 1 will be described with reference to the flowchart shown in Fig.

When the user selects one or more content to be recorded on the optical disc D from the server 12 and completes the start setting operation such as loading the optical disc D in the recording unit 20, The process starts from the illustrated step S11.

In step S11, the audio dubbing system 1 asks the user whether or not an error check has been performed by the display unit 14. [ If the user inputs whether or not an error check has been performed using the operation input unit 13, the process proceeds to step S12. This error investigation will be described in detail below.

In step S12, the voice transmission unit 10 supplies a setup command (SETUP) to the recording unit 20 via the command line 2c. When the setup instruction (SETUP) is supplied from the audio transmission unit 10, the recording unit 20 sets the recording state of the optical disc D to the recording stop state and outputs the acknowledge signal ACKNOWLEDGE via the ACK line 2d to the audio transmission unit 10). In step S13, the audio transmission section 10 performs an inspection to see whether or not the approval signal ACKNOWLEDGE has been transmitted from the recording section 20. [ If the acknowledgment signal ACKNOWLEDGE has been transmitted, the process proceeds to step S15. If the acknowledgment signal ACKNOWLEDGE has not been transmitted for a predetermined time, the process proceeds to step S14.

In step S14, the audio transmission section 10 regards that the recording on the optical disc D by the recording section 20 has become impossible due to a slight problem, displays an error message on the display section 14, and ends the processing .

In step S15, the audio transmission unit 10 supplies the start command (START) to the recording unit 20 via the command line 2c. Upon receiving the request signal (Data Req), the audio transmitting section 10 supplies the ATRAC data to the recording section 20 for each predetermined capacity. At the time of receiving the ATRAC data, the recording section 20 records the data in the recordable area of the optical disc D.

On the other hand, if a plurality of tracks are designated by the user, that is, if a plurality of contents are designated, the voice transmission section 10 supplies ATRAC data to the recording section 20 as a continuous data stream. The recording unit 20 also stores the TOC information of the disk in an external memory or the like in advance, and if the recording to the optical disk is not normally performed, the optical disk D can be returned to the disk state before recording.

If the recording of the ATRAC data starts in step S15, the process proceeds to step S16.

In step S16, the audio transmission unit 10 transmits a recording status confirmation command (ALRIGHT) via the command line 2c to check the recording status of the recording unit 20. [ If an acknowledgment signal (ACKNOWLEDGE) is supplied from the recording unit 20 to the voice transmission unit 10 and it is confirmed that the recording condition is normal, the process proceeds to step S17 to confirm that the recording is completed. If the recording has not ended, the process returns to step S16 to check whether the recording has been normally performed. In other words, the processing of the steps S16 and S17 confirms whether the recording is normal and the recording is finished at a predetermined interval.

If the recording unit 20 determines that the recording is not normal, the process advances from step S16 to step S14 to stop the recording process. At this point, the previous TOC information stored in the external memory or the like is rewritten on the optical disc D, and the optical disc D returns to the pre-recording state.

If it is determined that the recording has ended, the process proceeds from step S17 to step S18.

In step S18, the voice transmission unit 10 sends a stop command STOP to the recording unit 20 via the command line 2c. Upon reception of the stop command, the recording unit 20 ends the recording of the ATRAC data. When the stop command is supplied in step S18, the process goes to step S19.

In step S19, the audio transmission unit 10 transmits the TOC0 information command (TOC0info), the track size information, the title command (Title), the number of characters in the title, and the character data as well as the track number command (TNO) Provide information.

Upon receiving the TOC information, the recording unit 20 records the data of the U-TOC0 to U-TOC4 of the optical disc D in accordance with the supplied TOC information. On the other hand, the start address and end address of each track are generated according to the track size information supplied after the TOC0 information command (TOC0info). That is, since the ATRAC data is supplied as one data stream, this data stream is divided for each track into data sizes to generate TOC information.

After supplying the necessary TOC information in step S19, the process proceeds to step S20.

In step S20, the voice transmission unit 10 determines whether or not the user has made a setting for performing an error check in step S11. If the user has made a setting for performing error checking, the process proceeds to step S21, and if not, the process proceeds to step S23.

In step 21, the voice transmission section 10 supplies an error check command to the recording section 20 via the command line 2c. Upon receipt of the error inquiry command, the recording section 20 reads the recorded ATRAC data to check what error is in the recorded data.

When the error checking is started by the recording unit 20, the audio transmitting unit 10 is in the waiting state in step S22 until the error checking is finished. At the end of the error investigation, the process proceeds to step S23.

In step S23, the voice transmission unit 10 displays the result of the test on the display unit 14. [ If it is determined that an error has occurred in the recording data as a result of the error check, for example, before-recording TOC information stored in the external memory is recorded on the optical disc D.

After the test result is displayed in step S23, the audio dubbing system 1 ends the processing.

By the processing from step S11 to step S23, the audio dubbing system 1 can reliably record the ATRAC data on the optical disc D. [

In the processing from the step S11 to the step S23, the necessary TOC information is supplied to the recording unit 20 after all the ATRAC data is recorded. However, the audio dubbing system 1 may also transmit the TOC information before the audio transmitting unit 10 supplies the ATRAC data to the recording unit 20. [

That is, the processing in step S19 is performed before the start command (START) is supplied after completion of the setup, that is, between the processing in step S13 and the processing in step S15. Since the TOC information is recorded by the recording unit 20 after the ATRAC data is recorded on the optical disc D, it is necessary to store the TOC information supplied in advance in the external memory, for example. By storing the TOC information in the external memory, for example, before the ATRAC information is recorded, the name of the song to be recorded can be displayed on the display unit.

Also, the audio dubbing system 1 may supply the TOC information in parallel with the ATRAC data being supplied to the recording unit 20 by the audio transmitting unit 10.

That is, since the ATRAC data and commands are transmitted separately via the ATRAC line 2a and the command line 2c, the processing of steps S16 and S17 and the processing of step S19 are performed at the same time to shorten the data transfer time . In this case as well, the recording section 20 needs to record the TOC information on an external memory or the like, and the TOC information needs to be recorded on the optical disc D after all the ATRAC data recording.

The ATRAC data corresponding to the plurality of contents is processed as one data stream and the information necessary for generating the TOC information is recorded in the recording unit 20 in the audio transmission unit 10, Respectively. However, when a plurality of contents are designated by the user, the audio dubbing system 1 can record ATRAC data corresponding to one content onto the optical disc D, and generates TOC of the next recorded ATRAC data And record the ATRAC data corresponding to the next contents.

The above processing can be realized by processing from step S15 to step S19 constituting a repeated loop from one content to another contents.

More specifically, the recording of two pieces of music on the optical disk D will be described below with reference to a timing chart.

Referring to FIG. 14A, a first content having a track size of 0002.00.00 and a track mode (trmd) of titles Bye-bye and a6, a track mode (trmd) of a title Hello and a6, and a track size And a third content having a track mode (trmd) of 86 and a track size of 0020.1e.00 are stored in the server 12.

The optical disc D as a recording medium is provided with a first track having a title emotion, a track mode (trmd) of e6 and a track size of 0011.05.02, a track mode (trmd) of titles Dream and e6, Two tracks of the second track having a size are recorded.

To record the second content (ATRAC data having the title Dream) and the third content (ATRAC data having the title Morning) stored in the server and displayed as a mark in Fig. 14A, Figs. 15A to 15E, 16A to 16E , The processing is performed as shown in Figs. 17A to 17E and Figs. 18A to 18E.

15A to 15E show timing charts for command data between the voice transmission unit 10 and the recording unit 20 when ATRAC data is transmitted.

First, the recording unit 20 sends a setup command (SETUP) to the recording unit 20 at time (t _31). Setup command (SETUP) at the time of reception, recording section 20 supplies the acknowledgment signal (ACKNOWLEDGE) to the set-up a recording paused state time (t ₃₂₎ to the voice transmitter 10. Upon receiving the acknowledge signal ACKNOWLEDGE, the audio transmitting section 10 supplies a reset command (ACK-RESET) to the recording section 20 to reset the acknowledge signal ACKNOWLEDGE.

Voice transmitter 10 supplies a start command (START) to the time (t ₃₃₎ to the recording unit (20). The supply of the start command (START) corresponds to the processing in the step S15. At the time of receiving the start command (START), the recording section 20 starts the recording operation, and at the same time, supplies the acknowledge signal (ACKNOWLEDGE) and the request signal (Data Req)

Request signal, the ATRAC data in, voice transmitter 10 is time (t ₃₄₎ according to (Data Req), a predetermined capacity, that is the second information, the ATRAC data having the (ATRAC data having the title Hello) and the third contents (title Morning ) To the recording unit 20 is started. To supply the ATRAC data every predetermined amount, sequentially according to the speech transmitter 10 is the request signal (Data Req) supplied from the ATRAC data from the recording unit (20), time _{(t 35, t 36, t} 37, t 38) To the recording unit 20.

The audio transmission unit 10 supplies a recording status confirmation command (ALRIGHT) at predetermined intervals in order to conduct an investigation to determine whether the recording status of the recording unit 20 is normal. The supply of the recording status confirmation command (ALRIGHT) to check whether the recording state of the recording section 20 is normal corresponds to the processing in the step S16.

If the voice transmitter 10 determines that all ATRAC data are supplied to the recording unit 20, and supplies a stop command to the time (t ₃₉₎ (STOP) to the recording unit (20). The processing of supplying the stop command STOP corresponds to the processing in step S18. If stopped when the command (STOP) is supplied is supplied to the ATRAC data is entirely recorded on the optical disk (D), register 20 is the time (t ₄₀₎ to finish the recording, and at the same time a stop command (STOP) the voice transmitter 10 on .

16A to 16E show timing charts of the TOC0 information command (TOC0info) supplied from the audio transmission section 10 to the recording section 20 in step S20. 16A and 16B show time charts of data supplied from the audio transmission unit 10 to the recording unit 20 and recording states of the U-TOC0 of the optical disc D at each time.

The newly dubbed tune is temporarily registered in the U-TOC as the third track after the first and second recorded tracks.

Some TOC0 information command (TOC0info) start address, the end of that does not feed time (t ₅₁₎ in the first and second tracks prerecorded in the U-TOC0 of the optical disc (D) (Title Track having Emotion and Dream) The address and track mode and the start address and end address of the temporarily recorded third track are recorded.

The voice transmission unit 10 supplies the track mode and track size of the first content at time t ₅₂ . That is, the audio transmission unit 10 supplies the number of the content of the ATRAC data having the title Hello, the track mode of the content, and the track size of the content, together with the TOC0 information command (TOC0info).

Upon receiving the track mode and the track size of the first content, the recording unit 20 generates U-TOC0 information according to the supplied information and records the generated information on the optical disc D. [ Thus, at time t ₅₃ , the track mode, start address, and end address associated with the first content are recorded in TOC0 of the optical disc D.

Then, the voice transmission unit 10 supplies the track mode and the track size of the second content at time t ₅₃ . That is, the audio transmission unit 10 supplies the contents number of the ATRAC data having the title Morning as well as the track mode and the track size of the contents together with the TOC0 information command (TOC0info).

Upon receiving the track mode and the track size of the second content, the recording unit 20 generates U-TOC0 information according to the supplied information and records the generated information on the optical disk D. [ Thus, at time t ₅₄ , the track mode, start address, and end address associated with the second content are recorded in U-TOC0 of the optical disc (D).

Voice transmitter 10 sends the stop command (STOP) at time (t _55). Upon receipt of the stop command STOP, the recording unit 20 determines that the processing corresponding to the TOC0 information command (TOC0info) supplied in advance has been completed, and assumes that there is no data downstream of the end address corresponding to the second contents The process proceeds to the process of deleting the remainder.

Therefore, at the time t ₅₆ , a track having the title Hello in the U-TOC0 of the optical disc D in succession along with the previously recorded U-TOC0 data of the first and second tracks and a track having the title Morning are recorded.

17A to 17D and 18A to 18D are time charts of the title information supplied from the audio transmission section 10 to the recording section 20 in the step S20. Figs. 17A and 18A show time charts of data supplied from the audio transmission unit 10 to the recording unit 20, and Figs. 17B and 18B show time charts of the U-TOC1 and U-TOC4 of the optical disc D Indicates a recording state.

Referring to FIG. 17d, the title command (Title) is, if not supplied in time (t ₆₁₎ U-TOC1 and U-TOC4 of the optical disc (D) in only a pre-recorded titles of the first and second tracks is recorded.

Sound transmitter 10 transmits the title of the first content at the time (t _62). That is, the audio transmission unit 10 transmits the content number of the ATRAC data, the number of characters supplied, and the character data of the title title of the content, together with the title command (Title).

Upon receiving the title of the first content, the recording unit 20 generates information of U-TOC1 and U-TOC4 in accordance with the supplied information, and records the generated information on the optical disk D. [

On the other hand, if the number of characters in the title is larger than the predetermined value, the processing is executed in a plurality of times. That is, if only four characters of data can be supplied, the four characters of Hell are supplied first, and then the letter o is supplied at time t ₆₄ .

Therefore, the time (t _65), the title corresponding to the first contents is recorded on U-TOC1 and U-TOC4 of the optical disc (D).

Then the voice transmitter 10 supplies the title of the second contents at time (t ₆₆₎ in Fig. 18d. That is, the audio transmission unit 10 supplies the content number of the ATRAC data, the supplied number of characters, and the character data of the title Morning of the contents together with the title command (Title). Upon receiving the second content, the recording unit 20 generates information of U-TOC1 and U-TOC4 on the basis of the supplied information, and records the generated information on the optical disk D. [

Therefore, the time (t _65), the title corresponding to the second information is recorded on U-TOC1 of the optical disc (D).

If the recording unit 20 terminates the recording of all titles, the audio transmission controller 10 ends the process by sending a stop command (STOP) at time (t _68).

By the above processing, the audio dubbing system 1 can record TOC information on the optical disc D. That is, the third track of the title Hello recorded from the server 12, the fourth track of the title Morning, and the ATRAC information recorded together with the first track of the previously recorded Title Emotion and the second track of the title Dream are recorded on the optical disc D .

As described above, in the audio dubbing system 1, the audio transmitting unit 10 transmits the track size of each track along with the ATRAC data, and the recording unit 20 divides the data stream recorded on the optical disc D, D) to the U-TOC of each track. This enables the audio dubbing system 1 to efficiently record the track selected by the user to the optical disc D. [ The recording unit 20 records the ATRAC data as a track corresponding to the transmitted data stream and at the same time divides the data stream of the one track so as to improve the utilization efficiency of the optical disk D, And records it on the optical disk D.

Referring to the drawings, a voice dubbing system according to a second embodiment of the present invention modified in the above-described voice dubbing system 1 will be described. In the description of the audio dubbing system of the second embodiment, the same parts and components as those of the audio dubbing system 1 are denoted by the same reference numerals and the detailed description thereof is omitted for the sake of simplicity.

20 is a block diagram illustrating the audio dubbing system 40 of the second embodiment of the invention.

Like the audio dubbing system 1 described above, the audio dubbing system 40 pre-stores ATRAC data in the server 12 of the audio transmitting unit 10a, Selects the desired ATRAC data and records the selected data on the recording medium.

The voice dubbing system 40 includes a voice transmission unit 10a and a recording unit 20a which are configured with a main controller 11, a server 12, an operation input unit 13, a display unit 14 and a prepaid card reader 15, .

The prepaid card reader 15 is a device for collecting charges of the supplied contents. For example, when the voice dubbing system 40 is installed in a store, the user inserts a predetermined prepaid card to pay the fee. The method of collecting the total amount of charge for the contents supplied by the audio dubbing system 40 is not limited to the prepaid card, and various cards or cash may be used. The prepaid card reader 15 updates the charge of the prepaid card based on this information. If you pay in cash instead of a prepaid card, the balance is returned to the user.

The recording section 20a detects the state of a protection switch called a write-protection pawl. This protection switch is provided to prevent erroneous recording by the user. If the protection switch is set to be unrecordable, the recording unit 20a can not record audio data. If the protection switch of the optical disc D is set to be unrecordable, the recording section 20a supplies the protection switch detection information to the main controller 11 of the audio transmission section 10a.

The recording unit 20a also detects PTOC information and UTOC information of the optical disc D. [ The recording unit 20a detects the type of the optical disc D, that is, whether the optical disc D is a magneto-optical disc that can record / reproduce or a read-only optical disc, based on the PTOC information. The recording section 20a also detects the vacant capacity of the optical disc D based on the UTOC information. The recording section 20a supplies the information to the main controller 11 of the audio transmission section 10a.

The main controller 11 records the audio data transmitted from the server onto the optical disc D in a normal manner on the basis of the supplied protection switch information, PTOC / UTOC information and charge information before the audio data is transmitted from the audio transmission section 10a Or not. If it is determined that the recording can be normally performed, the ATRAC data is allowed to be transmitted from the voice transmission unit 10a. The procedure of error determination processing will be described below using the flowchart in Fig. When the user inserts the optical disc D, the main controller 11 of the audio dubbing system 40 performs the processing from step S31 before starting the recording of the ATRAC data.

In step S31, the main controller 11 acquires the protection switch detection information from the recording section 20a. In the next step S32, it is determined whether or not the optical disc D is in the write prohibited state. If the optical disc D is in the write prohibited state, the main controller 11 proceeds to step S33 and displays an error message. If the optical disc D is not in the write inhibition state, the main controller 11 proceeds to step S34.

In step S34, the main controller 11 acquires PTOC information and UTOC information of the optical disc D supplied from the recording section 20a. In the next step S35, the main controller 11 determines whether or not the PTOC information can be normally read. If the PTOC information can not be read, the optical disc D can not record data. Therefore, the main controller 11 proceeds to step S33 and displays an error message. If the PTOC information can not be read, the main controller 11 proceeds to step S36.

In step S36, the main controller 11 determines whether or not the inserted optical disc D is a recordable optical disc, based on the PTOC information. If the disc is an unrecordable disc, the main controller 11 proceeds to step S33 and displays an error message. If the optical disc is a recordable disc, the main controller 11 proceeds to step S37.

In step S37, the main controller 11 determines whether or not the UTOC information can be normally read. If the UTOC information can be normally read, the main controller 11 proceeds to step S41. If the UTOC information can not be normally read, the main controller 11 proceeds to step S38 and displays a message to the user as to whether or not the optical disc D should be initialized. The reason is that, if the UTOC information can not be read, there is a possibility that the UTOC is reset to the normal state by initializing the optical disk D. If an initialization request is made by the user, the main controller 11 goes to step S39 to initialize the optical disk D, and proceeds to step S40. If the initialization request is not made by the user, the main controller 11 proceeds to step S33 and displays an error message.

In step S40, the main controller 11 determines whether or not the optical disk has been successfully initialized. If the determination result is affirmative, the main controller 11 proceeds to step S41, and if not, the main controller 11 proceeds to step S33 to display an error message.

In step S41, the main controller 11 causes the user to select ATRAC data to be recorded on the optical disc D. That is, the main controller 11 displays the content stored in the server 12 on the display unit 14, and allows the user to designate the content using the operation input unit 13 based on the display. When the user selects voice data for recording, the main controller 11 proceeds to step S42.

In step S42, the main controller 11 compares the total capacity of the selected ATRAC data with the free capacity of the optical disk D. [ If the sum of the capacities of the selected ATRAC data is smaller than the empty capacity of the optical disc D, the main controller 11 proceeds to step S44. If the sum of the capacities of the selected ATRAC data is larger than the empty capacity of the optical disc D, the main controller 11 proceeds to step S43.

In step S43, the main controller 11 causes the user to determine which of the plurality of selected ATRAC data is not to be stored or which of ATRAC data already recorded on the optical disk D is to be erased do. If it is determined that any of the plurality of selected ATRAC data is not to be recorded, the main controller 11 compares the total capacity of the ATRAC data excluding the ATRAC, which is determined not to record, with the empty capacity of the optical disk (D). If the user decides to erase any of the already recorded ATRACs, the main controller 11 proceeds to step S42 and determines whether the empty capacity of the optical disc D including the selected ATRAC data sum and the ATRAC data to be erased .

If it is determined in step S43 that the user does not erase any of the recorded ATRAC data but does not erase any of the ATRAC data already recorded on the optical disk D, S33) and an error message is displayed.

In step S44, the main controller 11 compares the balance with the total amount of the selected contents based on the balance information from the prepaid card reader 15. [ If the balance is larger than the total charge of the selected contents, the main controller 11 proceeds to step S46.

If the remaining balance is less than the total charge of the selected contents, the main controller 11 proceeds to step S45 to indicate that the remaining balance is insufficient so that the user can not record any of the plurality of selected contents or add money To choose to deposit. If the user decides not to record any of the plurality of selected contents, the main controller 11 proceeds to step S44 and judges at step S44 whether or not the total charge and the balance Compare. If the user judges that the user should additionally receive the money, the main controller 11 compares the total amount of the selected contents with the balance in step S44. If in step S45 the user does not record any of the plurality of selected contents or make a judgment as to whether the money is to be additionally provided, the main controller 11 returns to step S33 to display an error message .

In step S46, the main controller 11 displays the final determination. If the user desires to reselect based on this display, the main controller 11 proceeds to step S41. If the user makes a confirmation input, the main controller 11 proceeds to step S47.

In step S47, a permission signal for permitting the transmission of the selected ATRAC data is transmitted to the server 12, and ATRAC data is transmitted from the server 12 to the optical disk D and recorded on the optical disk D. The subsequent recording processing is similar to that described in the audio dubbing system 1.

If it is determined in step S43 that the user erases any of the ATRAC data recorded on the optical disc D in step S46, the main controller 11 writes the ATRAC data from the server 12 onto the optical disc D , And erases the ATRAC data already recorded on the optical disc D.

When the recording process in step S47 and the display process of the error message in step S33 are completed, the optical disc D is ejected in step S48 and the process is terminated.

When the main controller 11 performs the processing from the step S31 to the step S48, it is possible to surely record the ATRAC data.

On the other hand, in the display processing of the error message in step S33, the display contents can be changed in accordance with the error contents. For example, if the protection switch of the optical disc D is in the write inhibition state, a message indicating that the disc is write-protected will be displayed. If the PTOC information can not be read or a read-only optical disc is loaded, a message " There is a possibility that the disc is confused ", or a message " This disc is for reproduction only "

In the case of the audio dubbing system 40, as described above, it is possible to indicate whether or not the recording can be accurately performed before the recording on the optical disc D, so that the audio data can be reliably recorded do. Therefore, in the case of the audio dubbing system 40 of the present invention, since the display unit 14 can display an indication corresponding to the error message, the user can respond to the error content at the time of processing.

In the above description, the case where audio data is recorded on a magneto-optical disk has been described, but the present invention can also be applied to recording video data instead of audio data. The recording medium may be a recording medium other than the magneto-optical disk.

1 and 20, the server 12 is configured to be installed in the voice transmission unit 10, but the server 12 is installed in an information center located in a distant place and is connected to the voice transmission unit 10 using an ISDN or an analog telephone line. . In this case, the portion corresponding to the audio transmission unit 10 of Fig. 1 in which the server 12 is missing is integrated with the recording unit 20. [

In FIG. 20, information about an artist, such as an image, supplied by the communication interface 44 may also be supplied from a server 12 located at a remote location.

Claims (12)

In the transmission / reception system, A transmitter and a receiver, Here, A memory means for storing a plurality of pieces of compressed data; And transmission means for transmitting the compressed data selected by the user, The receiver includes: Receiving means for receiving the compressed data transmitted from the transmitter; Recording means for recording the compressed data on a recording medium, Detecting means for detecting write prohibition information of the recording medium; Display means for displaying an error message to notify a user of a write prohibition corresponding to detection by the detection means; And a transmitting means for transmitting a request signal to the transmitter if the recording medium is normal in accordance with the detection result by the detecting means. The method according to claim 1, Wherein said detecting means comprises comparison means for comparing the capacity of the recordable area of the recording medium with the capacity of the compressed data from the transmitter. The method according to claim 1, Wherein the detecting means detects erasure protection information of the recording medium. The method according to claim 1, Wherein the detecting means detects whether the recording medium is a read-only medium or a recordable medium. The method according to claim 1, Wherein the recording medium comprises a program area and a management area, and the detecting unit detects whether the recording medium is normal or abnormal based on the management information reproduced from the management area. The method according to claim 1, Further comprising a residual amount detecting means for detecting a remaining amount of money deposited by the user, Wherein the display means for displaying an error message displays a balance for the user based on the detection result of the balance detection means. Detecting recording prohibition information of the recording medium, Displaying an error message to notify a user of a write prohibition result based on the detection result, A transmission step of transmitting request information to a server if the recording medium is normal based on the detection result, Comprising: receiving compressed data transmitted from a server; And recording the compressed data on a recording medium. 8. The method of claim 7, Further comprising the step of comparing the capacity of the recordable area of the recording medium with the capacity of the compressed data from the server. 8. The method of claim 7, Wherein the detecting step detects erasure protection information of the recording medium. 8. The method of claim 7, Wherein the detecting step determines whether the recording medium is a read-only medium or a recordable medium. 8. The method of claim 7, Wherein the recording medium comprises a program area and a management area, and the detecting step detects whether the recording medium is a read-only medium or a recordable medium, based on management information reproduced from the management area. 8. The method of claim 7, Detecting a balance of the money deposited by the user; Further comprising the step of displaying an error message for notifying the user of the lack of balance based on the result of detection of the balance by the detection means.