KR100509706B1 - 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 among compressed voice data stored in a server to a customer remote from the server. If the state of the recording medium loaded on the customer's side is normal and / or the balance deposited on the customer's side is sufficient to collect the user, the selected compressed voice data starts to be transmitted from the server. do. If the state of the recording medium loaded on the customer's side is not normal and / or the balance deposited on the customer's side is not enough to collect to the user, the selected compressed voice data is prohibited from being transmitted from the server. do. Therefore, it is possible to prevent the problem that the meaningless collection to the customer occurs.

Description

Transmission method and transmission system

The present invention is directed to a transmission method and a transmission system for transmitting compressed voice data without expansion, recording the data as a compressed signal to a receiving side, detecting a state of a recording medium, notifying an error, and displaying an error message. It is about.

Until now, magneto-optical discs called mini discs (trademarks), which are recordable and reproducible disc-shaped recording media having a diameter of approximately 64 mm housed in a cartridge, are known. The magneto-optical disk can record stereo audio signals continuously for about 70 minutes according to the Adaptive Transform Acoustic Coding (ATRAC) method. This magneto-optical disc can record information unlike conventional digital audio discs known as compact discs (trademarks), and thus can reproduce audio data.

As with a conventional digital audio disc, a magneto-optical disc is provided because an area for table-of-contents (TOC) information that manages recorded voice data is provided to this magneto-optical disc in addition to the area for recording voice data. Allow random access to voice data. Therefore, if the voice data is overwritten on the magneto-optical disk containing the recorded voice data, the number of songs can be deleted or edited by rewriting the TOC information without erasing the actual voice data.

In order to record about one fifth compressed voice data on the magneto-optical disk, the compressed voice data is stored directly on the server and read from the recorded data on the server side hard disk, and also for recording on the receiving side. May be considered a voice dubbing system in which the compressed voice data is transmitted without expansion.

By the way, in such a voice dubbing system, the recording capacity of the magneto-optical disk is insufficient, the recording area is partially or totally destroyed, a read-only disk is inserted, or a false recording prevention pawl installed in the cartridge of the magneto-optical disk. When locked, the recording operation may not be performed 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, the voice data transmission from the compact disc is already Even if it is started, such a defect state can be recovered because the user can stop or reinitialize the dubbing operation.

On the other hand, in a voice dubbing system in which voice data transmitted from a server is supplied remotely through a transmission route, once a user requests a desired song number, the server transmits voice data regardless of the state of a recording medium owned by the customer. do.

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

Since the server charges for the transmitted voice data, there is a constant loss for the user.

Moreover, since the transmitted voice data is in the form of undecoded compressed data, the user cannot test the voice data experimentally, and thus the transmitted voice data becomes useless to the user.

It is an object of the present invention to avoid meaningless claims, to detect the state of a recording medium loaded on the recording apparatus side, and if the detection state is good, request the server to transmit voice data, otherwise It is to provide a dubbing system that does not require transmission.

It is still another object of the present invention to detect a balance deposited on the recording device side, i.e., a residual balance of the coin inserted on the recording device side or an inserted prepaid card. It is to provide a dubbing system in which otherwise, the transfer request is not made to the server side.

According to an aspect of the present invention, there is provided a transmission and reception system comprising a transmitter and a receiver, in which the transmitter is a memory means for storing a plurality of compressed data and transmission means for transmitting the compressed data selected by the user The receiver comprises: receiving means for receiving compressed data transmitted from a transmitter, recording means for recording the compressed data on a recording medium, detection means for detecting recording prohibition information of the recording medium, and detection by the detection means. Display means for displaying an error message in order to notify the user about the prohibition of recording in response to the result, and transmission means for transmitting the request information to the transmitter if the recording medium is normal in response to the detection result by the detection means, It provides a transmission and reception system comprising a transmitter and a receiver.

According to another aspect of the present invention, there is provided a detection step of detecting recording prohibition information of a recording medium, a display step of displaying an error message to notify a user of a recording prohibition result in response to the detection result, and recording based on the detection result. If the medium is normal, there is provided a data transmitting / receiving method comprising a transmitting step of sending request information to a server, a receiving step of receiving compressed data transmitted from the server, and a recording step of recording the compressed data on a recording medium.

In the voice data recording method and recording apparatus according to the present invention, if the voice data cannot be recorded normally, an error message is displayed on the display means. Therefore, it is possible to indicate whether or not the recording can be accurately performed before recording on the recording medium, thus making it possible to reliably record audio data. Further, according to the voice 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 the 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 voice dubbing system 1 includes a voice transmitter 10 including a main controller 11, a server 12, an operation input unit 13 and a display unit 14, and a recording unit 20 for recording voice data on a portable recording medium. And a connection line 2 connecting the voice transmitter 10 and the recorder 20 to each other.

In this voice dubbing system 1, voice data is stored in advance in the server 12 of the voice transmitter 10, and the user can select 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 delivers the contents of songs to a user by recording the voice data on a recording medium owned by the user, instead of delivering the contents of the voice data stored on a medium such as a compact disc or an audio tape. to be. For example, this voice dubbing system 1 may be installed in a railway station or in a music studio for retailers or content management purposes in order to supply the user with music contents to be taxed.

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

In the server 12 of the voice dubbing system 1, the song contents of a song such as the top 100 of the latest heat chart each continuing for several minutes are stored as voice data. The user confirms the contents supplied by the voice dubbing system 1 by the display section 14, and if found desired, the operation input section 13 is used to select one or more contents. 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 voice transmitter 10 supplies the voice data of the contents specified by the user among the contents stored in the server 12 to the recording unit 20. The recording unit 20 records the audio data supplied from the audio transmitting unit 10 in the recordable area of the recording medium.

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

In FIG. 1, although the server 12 is included in the voice transmitter 10, the server 12 may be installed in an information center that is remotely located, and also the main controller 11 and the display unit using ISDN and a telephone line. 14, the operation input unit 13 and the recording unit 20 can be provided to communicate with the device configured.

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

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

Since the voice dubbing system 1 records the voice data compressed according to the ATRAC method on the optical disc D, the voice data of the content stored in the server 12 is precompressed according to the ATRAC method. Voice data compressed according to the ATRAC method is directly recorded on the optical disc D without decoding or encoding the voice data. Voice data compressed by the ATRAC method is referred to as ATRAC data below. Therefore, the connecting line 2 used to transmit the voice data from the voice transmitter 10 to the recorder 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 via the connection line 2 in accordance with the transmission protocol described next.

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

As shown in FIG. 2, data may be recorded on the optical disc D in units corresponding to integer multiples of one cluster. Note that a speech signal of about 2.04 seconds is generated when reproducing ATRAC data recorded in one cluster.

One cluster consists of three linking sectors, one sub-data sector, and 32 main sectors for recording voice data compressed by the ATRAC method, that is, 36 sectors in total. One sector is a unit consisting of 2352 byte data.

Since the format of the optical disc D uses the error correction method of the Advanced Cross Interleaving Reed Solomon Code (ACIRC) method, the connected sector is used as a sector allocated for performing error correction interleaving in the cluster. That is, the concatenated sector is an extra sector considering interleaving in error correction 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 according to the ATRAC method in units called sound groups. This sound group allocates 212 byte data for each of the left and right channels. In extension, 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, eleven of the sound groups constitute two sectors.

The recording area of the optical disc D is a program area for recording voice data compressed according to the ATRAC method, and U-TOC (User Table-Of) as a management area for recording management data for managing voice data recorded in the program area. And a pre-mastered table-of-contents (P-TOC) area as a lead-in area.

In this optical disc D, the songs can be deleted or edited by rewriting U-TOC information instead of physically deleting the actual music data for rewriting. For example, in the case of the optical disc D in which five songs are recorded, if the start address and end address of the third song are designated as the recordable area, the third song cannot 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 unit of audio data recorded on the optical disc D is simply referred to as 'track'. This track is a unit of tune corresponding to the contents of the tune supplied by the voice dubbing system 1 described above.

The U-TOC of the optical disc D is composed of U-TOC sectors 0 to U-TOC sectors 15 which are 16 sectors in total. The U-TOC sector n (where n is 1 to 15) is simply referred to as U-TOCn.

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 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, the header data of 12 bytes is recorded after ClusterH and ClusterR which designate the address of TOC0. In TOC0, starting from slot 7x1, Maker code indicating the maker of the optical disc D, Model code indicating the model of the optical disc D, and FirstTNO indicating the track number of the first track of the optical disc D are shown. LastTNO indicating the track number of the last track is recorded. In U-TOC0, Used Sectors indicating the state of use of the sector and DiscSerialNo indicating the serial number of the optical disc D are recorded in slots 8x4 and 10x4, respectively.

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

In U-TOC0, the start address and end address of each track, link information (Link-P), and track mode (Track mode) are recorded in 78x1 to 587x4. In U-TOC0, 255 x 4 slots are also recorded to record the start address and the end address. The start and end addresses are recorded in the slot associated with each track.

Therefore, the pointer recorded in each of the P-DFA, P-EMPTY and P-FRA indicates the slot of the start address indicated from slot 78x1.

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

Track mode is represented by 1 byte = 8 bits, as shown in FIG. In the track mode, recording protection information, copy protection information, occurrence information, audio information, deletion preservation information, mono or stereo information, and emphasis information are provided in the first, second, third, fourth, and fourth bits. The fifth and sixth bits, the seventh bit, and the eighth bit are respectively written. In other words, relevant information appropriate for each track is recorded in the track mode.

The connection information (P-Link) is used when the same track is not recorded as a continuous data stream on the optical disc, i.e., when data of the same track is separately recorded in the recording area of the optical disc. Pointer to be recorded, used for tracing. For example, if the data from the start address of slot 586 × 1 needs to be played after the end address represented in slot 78 × 1 when playing a track, the link information (Link-P) of slot 80 × 4 Indicates slot 581 × 1.

In other words, in the optical disc D, data is not necessarily recorded on the recording medium as a continuous data stream, and the continuous data strings can be recorded separately. If the data is recorded separately, the data continuity is indicated by this 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 speed faster than the data read rate, Consecutive data can be reproduced without interruption.

If data shorter than the recording program is overwritten on previous recording data, efficient recording can be performed by indicating the spare area as the recordable area P-FRA without deleting the spare area.

A method of connecting the separation regions will now be described with reference to FIG. 7, which is an example of the recordable region P-FRA.

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 to be a 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.

Further, 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 a 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 on the memory that constitute a track recorded separately on the disc. It is possible.

Although P-FRA has been taken as an example for illustration, this separate segment can likewise be linked for P-DFA, P-EMPTY and T-TNO0 to 255.

8 shows data recorded in U-TOC1.

In U-TOC1, 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 disc D and the name of each track as a whole correspond to the album title, performer name and song name, respectively.

The character information of each track is recorded in the 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.

9 shows data recorded in U-TOC2.

In U-TOC2, the recording time and data of each program recorded in the program area are managed in a similar configuration to that of U-TOC0.

10 shows data recorded in U-TOC4.

In U-TOC4, the name of each program recorded in the program area is managed in a configuration similar to that of U-TOC0 so that Japanese syllable characters and Chinese characters can be used as fonts for the names of all optical disks D.

Referring to Fig. 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 voice dubbing system 1 is composed of a voice transmitter 10, a recording unit 20, and a connecting line 2 connecting the voice dubbing system 1 and the recording unit 20. The voice transmitter 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 to record audio data on a portable recording medium.

The recording unit 20 includes a random access memory (RAM) 22 for storing data transmitted from the voice transmitter 10 and a memory controller 21 for controlling the RAM 22. The recording unit 20 further includes an encoding / decoding circuit 23 for decoding and encoding data, a magnetic head driving circuit 24 for driving the magnetic head 25, and a laser beam on the optical disk D to detect reflected light. It includes an optical pickup 26 for irradiating. The recording unit 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 reproduction signal MO. . The recording unit 20 also includes an address decoder (1) for reproducing a signal corresponding to the wobble of the groove formed in the guide groove of the optical disc D in accordance with the push-pull signal PP from the RF amplifier 27 decoding the ADIP. 28 and a spindle motor 29 for rotationally driving the optical disk D. 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. FIG.

The recording unit 20 includes a servo circuit 31 for controlling the focus servo, the thread servo and the spindle servo according to the focus error signal FE and the push pull signal PP, the memory controller 21 and the encoding / decoding circuit 23. ) And a system controller 32 for controlling the servo circuit 31.

The optical pickup 26 irradiates a laser light to the optical disk D via the objective lens from the laser diode. The optical pickup 26 also detects the reflected light from the optical disc D by means of a photodetector to transfer 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 simultaneously sends the push-pull signal PP to the address decoder 28 and the servo circuit 31. The magneto-optical reproduction signal MO ) Is sent to the encoding / decoding circuit 23.

The servo circuit 31 performs two-axis portions of the optical pickup 26 in accordance with the supplied focus error signal FE and the push-pull signal PP for tracking and focus servo control of the light beam radiated onto the optical disc D. Drive the objective lens through. 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 in the radial direction of the optical disc D. FIG. 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 accordance with 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 two-level signal and converts the two-level signal into an EFM (Eight-to-Fourteen Modulation) scheme. At the same time, error correction decoding is performed according to Cross-Interleaved Reed-Solomon Coding (CIRC). The encoding / decoding circuit 23 adds an error correcting code to the recording signal supplied from the memory controller 21 in accordance with the CIRC scheme, modulates the resultant signal in accordance with the EFM scheme, and modulates the recording signal in the magnetic head driving circuit 24. Send to)

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

The memory controller 21 controls the writing and reading of ATRAC data stored in the RAM 22. This memory controller 21 causes the ATRAC data supplied from the voice transmitter 10 to be temporarily stored in the RAM 22, and then supplies this temporarily stored data to the encoding / decoding circuit 23.

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 described below.

By the above structure, the recording unit 20 of the voice dubbing system records ATRAC data supplied from the voice transmitter 10 on the optical disc D. FIG.

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

The voice dubbing system 1 has a connecting line 2 connecting the voice transmitter 10 and the recorder 20 with each other. The connection line 2 is an ATRAC line 2a which transmits ATRAC data sent from the voice transmitter 10 to the recording unit 20 as compressed voice data, and an ATRAC data request transmitted from the recording unit 20 to the voice transmitter 10. It consists of a Data Req line 2b which transmits a signal Data Req.

ATRAC data corresponding to the contents stored in the server 12 are sent from the main controller 11 of the voice transmitter 10 to the memory controller 21 of the recorder 20 via the ATRAC line 2a. In addition, an ATRAC data request signal (Data Req) indicating a request for ATRAC data is sent from the system controller 32 of the recording unit 20 to the main controller 11 of the voice transmitter 10 via the Data Req line 2b. Lose. That is, since ATRAC data is transmitted in units of predetermined capacity, the recording unit 20 sends this request signal (Data Req) to the voice transmitting unit 10, so that if all the ATRAC data already transmitted and written to the RAM 22 are written to the optical disc. If written in (D), the following data is requested. If the ATRAC data read from the RAM 22 has not been recorded on the optical disc D, the request signal to the voice transmitter 10 is set to the transmission standby state.

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

If the recording state of the recording unit 20 is normal, the recording unit 20 supplies the request signal Data Req to the audio transmitter 10 at time t ₁₁ . When the request signal Data Req is supplied, the audio transmitter 10 starts to supply a predetermined amount of ATRAC data to the recording unit 20 at time t ₁₂ . When ATRAC data is supplied, the recording unit 20 stops supplying the request signal Data Req at time t ₁₃ .

In addition, if the recording state of the recording unit 20 is not normal, no request signal Data Req is supplied from the recording unit 20 to the audio transmitter 10, as shown at times t ₁₄ to t ₁₅ . ATRAC data is also not transmitted from the voice transmitter 10 to the recorder 20. If the request signal Data Req is not supplied from the recording unit 20 continuously for a predetermined time, the audio transmitting unit 10 stops the recording operation.

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

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

Therefore, the voice dubbing system 1 can reliably record ATRAC data by the recording unit 20 which supplies the ATRAC data request signal Data Req to the voice transmitter 10.

The voice dubbing system 1 also includes a command line COMMAND 2c for transmitting control commands or other command data, such as TOC information supplied from the voice transmitter 10, to the recording unit 20, as shown in Fig. 12A. And an ACK line 2d for transmitting an acknowledgment signal ACKNOWLEDGE of the command data transmitted from the recording unit 20 to the voice transmitting unit 10.

Command data such as TOC information generated by the main controller 11 of the voice transmitter 10 or the data size of various contents of the ATRAC data is sent to the system controller 32 of the recording unit 20 via the command line 2c. Lose. If the recording section 20 terminates the processing related to the command data, the acknowledgment signal ACKNOWLEDGE is transmitted from the system controller 32 of the recording section 20 to the main controller 11 of the voice transmission section 10 via the ACK line 2d. Is supplied.

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

First, the voice transmitter 10 sends predetermined command data to the recording unit 20 at time t ₂₁ . When the supply of the command data ends, the recording unit 20 performs a process related to the supplied command data at time t ₂₂ . When the processing relating to the supplied command data ends, the recording unit 20 supplies the acknowledgment signal ACKNOWLEDGE to the audio transmitter 10 at time t ₂₃ . Upon receiving the acknowledgment signal ACKNOWLEDGE, the audio transmitter 10 supplies a reset command to the recording unit 20 at time t ₂₄ . Upon receiving the 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 audio transmitter 10 considers that a slight problem has occurred and stops the processing.

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

Command name Data in command (one byte) function SETUP One Set the recording unit 20 to the recording stop state START 2 Start recording STOP 3 Processing end TOC0info 4 TOC0 information (track size and track mode) ACK-RESET 8 ACK reset ALRIGHT 0b Record Status Check Title 83 Title Information

The setup command SETUP is a command for setting the recording unit 20 to a recording standby state, that is, a recording stop state. Upon receiving the setup command (SETUP), the recording unit 20 is in the recording stop state. Specifically, this setup command SETUP is given as one byte of "1" data.

The start command START is a command to start recording of ATRAC data. Upon receiving the start command START, the recording unit 20 starts recording ATRAC data on the optical disc D. FIG. Specifically, this start command START is given by one byte of "2" data.

The stop command STOP is a command for instructing the end of the processing of the recording unit 20 related to the command. Upon reception of the stop command STOP, the recording unit 20 stops recording started by the start command START. Specifically, this stop instruction STOP is given by one byte of "3" data.

The TOC0 information command TOC0info is a command for instructing information recorded in the U-TOC sector 0 of the optical disc D. FIG. Upon receiving this TOC0 information command (TOC0info) and information on the track size and track mode following this command, the recording unit 20 starts recording and ending address of ATRAC data recording from the track size to record TOC data in the U-TOC. Find it.

That is, TOC0 information is uniquely generated by the recording unit 20 itself and recorded on the optical disc D. FIG. By the way, if a plurality of contents of ATRAC data are supplied from the voice transmitter 10, these data are transmitted to the recording unit 20 as a continuous data stream, so that the joint points between the contents cannot be distinguished, so that track information is generated. Can't be. Therefore, the voice transmitter 10 transmits the track mode and track size indicating the data size indicating the data stream length of the data corresponding to each content as the TOC0 information command TOC0info. According to this TOC0 information command (TOC0info), the recording unit 20 generates TOC0 information to be recorded on the optical disc D. FIG.

Specifically, the track number TOC0 information command TOC0info is given by one byte of "4" data.

The command TNO is a command for indicating a track number of 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 by one byte of "5" data.

The reset command ACK-RESET is a command for resetting the acknowledgment signal ACKNOWLEDGE supplied from the recording unit 20. When the reset command ACK-RESET is supplied, the recording unit 20 stops supplying the acknowledgment signal ACKNOWLEDGE. Specifically, the reset command (ACK-RESET) is given by one byte of "8" data.

The recording status confirmation command ARLIGHT is a command for confirming the recording status of the recording unit 20. Upon reception of the recording status confirmation command ARLIGHT, the recording unit 20 supplies an acknowledgment signal ACKNOWLEDGE to the audio transmitting unit 10. Specifically, the recording status confirmation command ARLIGHT is given by one byte of "0b" data.

The title command (Title) is a command for supplying title information to be recorded in TOC1 and TOC4 of the optical disc D. FIG. Next to the Title command, character string information and character data are supplied. Upon reception of the character string information and character data, the recording unit 20 records title information for each track of the TOC1 and TOC2 of the optical disc D. As shown in FIG. Specifically, a Title command is given by one byte of "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 contents to be recorded on the optical disc D from the server 12 and completes a startup operation such as loading of the optical disc D into the recording unit 20, the voice dubbing system 1 is shown in FIG. The process starts from the step S11 shown.

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

In step S12, the voice transmitter 10 supplies the setup command SETUP to the recording unit 20 via the command line 2c. When the setup command SETUP is supplied from the voice transmitter 10, the recording unit 20 sets the recording state of the optical disc D to the recording stop state and transmits the acknowledgment signal ACKNOWLEDGE through the ACK line 2d. To 10). In step S13, the voice transmitter 10 checks whether the acknowledgment signal ACKNOWLEDGE has been transmitted from the recording unit 20. If the acknowledgment signal ACKNOWLEDGE has been sent, the process transfers 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 transmitter 10 considers that the recording on the optical disc D by the recording unit 20 has become impossible due to some problem, and displays an error message on the display unit 14 and ends the processing. .

In step S15, the voice transmitter 10 supplies the start command START to the recording unit 20 via the command line 2c. Upon reception of the request signal Data Req, the audio transmitter 10 supplies ATRAC data to the recording unit 20 for each predetermined capacity. Upon reception of the ATRAC data, the recording unit 20 records the data in the recordable area of the optical disc D. FIG.

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

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

In step S16, the audio transmitter 10 transmits a recording status confirmation command ARLIGHT via the command line 2c to confirm the recording status of the recording section 20. FIG. If the acknowledgment signal ACKNOWLEDGE is supplied from the recording unit 20 to the audio transmitter 10, and it is confirmed that the recording situation is normal, the process proceeds to step S17 to confirm that the recording is completed. If the recording has not been completed, the process returns to step S16 to check whether the recording was normally performed. That is, the processing of steps S16 and S17 checks whether the recording is normal and whether the recording is completed at predetermined intervals.

If the recording unit 20 determines that the recording is not normal, the process proceeds 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 to the optical disc D so that the optical disc D returns to the state before recording.

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

In step S18, the voice transmitter 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 recording of the ATRAC data. When the stop instruction is supplied in step S18, the process goes to step S19.

In step S19, the audio transmitting unit 10 not only track number command TNO but also necessary TOC such as TOC0 information command TOC0info, track size information, title command, title number of characters and character data. Supply information.

Upon reception of the TOC information, the recording unit 20 records data of 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 the end address of each track are generated according to the track size information supplied after the TOC0 information command (TOC0info). That is, since ATRAC data is supplied as one data stream, this data stream is divided into tracks with data sizes to generate TOC information.

After the required TOC information is supplied in step S19, the process proceeds to step S20.

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

In step 21, the voice transmitter 10 supplies an error check command to the recording unit 20 via the command line 2c. Upon reception of the error check command, the recording unit 20 reads the recorded ATRAC data to check what error there is in the recorded data.

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

In step S23, the audio transmitter 10 displays the test result on the display unit 14. If as a result of the error investigation, it is found that an error has occurred in the recording data, for example, the pre-record TOC information stored in the external memory is recorded on the optical disc D.

After displaying the test result 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 ATRAC data on the optical disc D. FIG.

In the processing from step S11 to step S23, necessary TOC information is supplied to the recording unit 20 after recording all ATRAC data. By the way, the voice dubbing system 1 may also transmit TOC information before the voice transmitter 10 supplies the ATRAC data to the recorder 20.

In other words, the processing in step S19 is performed after the setup is completed, before the start instruction START is supplied, 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 recording the ATRAC data on the optical disc D, it is necessary to store the supplied TOC information in an external memory, for example. By storing the TOC information in the external memory, for example, before recording the ATRAC information, the name of a song to be recorded can be displayed on the display unit.

The voice dubbing system 1 may also supply TOC information at the same time as the voice transmitter 10 supplies the ATRAC data to the recording unit 20.

That is, since ATRAC data and commands are transmitted separately through the ATRAC line 2a and the command line 2c, the processing of steps S16 and S17 and the processing of step S19 are performed simultaneously, thereby shortening the data transfer time. Can be. In this case as well, the recording unit 20 needs to record the TOC information in an external memory or the like so that the TOC information is recorded on the optical disc D after all the ATRAC data has been recorded.

In the processing from step S11 to step S23, the ATRAC data corresponding to the plurality of contents are processed as one data stream, and the information necessary for generating the TOC information is transmitted from the audio transmitter 10 to the recording unit 20. Are sent separately. By the way, when a plurality of contents are designated by the user, the voice dubbing system 1 can also record ATRAC data corresponding to one contents on the optical disc D, and then generate a TOC of the recorded ATRAC data. In addition, ATRAC data corresponding to the following contents can be recorded.

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

Specifically, recording of two pieces of music pieces on the optical disc D will be described below with reference to the timing chart.

Referring to Fig. 14A, the first contents having track modes trmd of titles "Bye-bye" and "a6" and track sizes of "0002.00.00", and track modes of titles "Hello" and "a6" ( trmd) and the second content having the track size of "0010.2f.0a" and the track mode trmd of the title "Morning" and "86" and the third content having the track size of "0020.1e.00". 12).

The optical disc D as a recording medium includes a first track having a track mode trmd of title "Emotion" and "e6" and a track size of "0011.05.02", and a track mode of title "Dream" and "e6". (trmd) and two tracks of the second track having a track size of "0022.1f.0a" are recorded.

15A to 15E, 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 as indicated by? The processing is performed as shown in 16a to 16e, 17a to 17e, and 18a to 18e.

15A to 15E show timing charts for command data between the voice transmitter 10 and the recorder 20 when transmitting ATRAC data.

First, the recording unit 20 transmits a setup command (SETUP) to the recording unit 20 at time t ₃₁ . Upon receiving the setup command (SETUP), the recording unit 20 sets up the recording stop state and supplies the acknowledgment signal ACKNOWLEDGE to the audio transmitter 10 at time t ₃₂ . Upon reception of the acknowledgment signal ACKNOWLEDGE, the audio transmitter 10 supplies a reset command ACK-RESET to the recording unit 20 to reset the acknowledgment signal ACKNOWLEDGE.

The audio transmitter 10 supplies the recording unit 20 with a start command START at time t ₃₃ . The supply of this start command START corresponds to the processing in step S15. Upon receiving the start command START, the recording unit 20 starts a recording operation and simultaneously supplies the acknowledgment signal ACKNOWLEDGE and the request signal Data Req to the audio transmitter 10.

According to the request signal Data Req, the voice transmitter 10 transmits ATRAC data of a predetermined capacity, that is, the second content (ATRAC data having the title "Hello") and the third content (title "Morning" at time t ₃₄ . Supply of the ATRAC data) to the recording unit 20 is started. In order to supply ATRAC data for each predetermined capacity, the voice transmitter 10 sequentially transmits the ATRAC data according to the request signal Data Req supplied from the recording unit 20 at times t ₃₅ , t ₃₆ , t ₃₇ , and t ₃₈ . To the recording unit 20.

The voice transmitter 10 supplies a recording status confirmation command ARLIGHT at predetermined intervals to investigate whether the recording state of the recording unit 20 is normal. The supply of the recording status confirmation command ARLIGHT for checking whether the recording state of the recording section 20 is normal corresponds to the processing in step S16.

When the voice transmitter 10 determines that all the ATRAC data has been supplied to the recording unit 20, the stop command STOP is supplied to the recording unit 20 at time t ₃₉ . The process of supplying the stop command STOP corresponds to the process in step S18. If the stop command STOP is supplied and the supplied ATRAC data are entirely recorded on the optical disc D, the recording unit 20 ends recording at time t ₄₀ and simultaneously issues the stop command STOP at the time of the voice transmission unit 10. To feed.

16A to 16E show timing charts of the TOC0 information command TOC0info supplied from the voice transmitter 10 to the recording unit 20 in step S20. 16A and 16B show a time chart of data supplied from the audio transmitter 10 to the recording unit 20 and the recording state of U-TOC0 of the optical disc D at each time point.

The newly dubbed song is temporarily registered with the U-TOC as the third track following the pre-recorded first and second tracks.

At the time t ₅₁ at which no TOC0 information command TOC0info is supplied, the first and second tracks (tracks with titles "Emotion" and "Dream") recorded in advance in U-TOC0 of the optical disc D The start address, end address and track mode, and the start address and end address of the temporarily recorded third track are recorded.

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

Upon reception of the track mode and the track size of the first content, the recording unit 20 generates U-TOC0 information in accordance with the supplied information and records the generated information on the optical disc D. FIG. 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. FIG.

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

Upon reception of the track mode and the track size of the second content, the recording unit 20 generates U-TOC0 information in accordance with the supplied information, and records the generated information on the optical disc D. FIG. Therefore, 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. FIG.

The voice transmitter 10 transmits a stop command STOP at time t ₅₅ . Upon reception of the stop command STOP, the recording unit 20 determines that the process corresponding to the TOC0 information command TOC0info supplied in advance has ended, and assumes that there is no data downstream of the end address corresponding to the second content. The process proceeds to delete the rest.

Therefore, at time t ₅₆ , the track having the title "Hello" and the track having the title "Morning" in U-TOC0 of the optical disc D in succession together with the pre-recorded U-TOC0 data of the first and second tracks. This is recorded.

17A to 17D and 18A to 18D are time charts of title information supplied from the voice transmitter 10 to the recording unit 20 in step S20. 17A and 18A show time charts of data supplied from the voice transmitter 10 to the recording unit 20, while FIGS. 17B and 18B show U-TOC1 and U-TOC4 of the optical disc D at each time point. Indicates the recording status.

Referring to Fig. 17D, if no title command (Title) is supplied, only the pre-recorded titles of the first and second tracks are recorded at U-TOC1 and U-TOC4 of the optical disc D at time t ₆₁ .

The voice transmitter 10 transmits the title of the first content at time t ₆₂ . In other words, the voice transmitter 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 reception of 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 disc D.

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

Therefore, at time t ₆₅ , the title corresponding to the first content is recorded in U-TOC1 and U-TOC4 of the optical disc D. FIG.

The audio transmitter 10 then supplies the title of the second content at time t ₆₆ in FIG. 18D. That is, the voice transmitter 10 supplies the title number (Title) together with the contents number of the ATRAC data, the number of characters supplied and the character data of the title "Morning" of the contents. Upon reception of the second content, the recording unit 20 generates the information of the U-TOC1 and the U-TOC4 based on the supplied information, and records the generated information on the optical disc D. FIG.

Therefore, at time t ₆₅ , the title corresponding to the second content is recorded on U-TOC1 of the optical disc D. FIG.

When the recording section 20 finishes recording all the titles, the audio transmission section 10 sends a stop command STOP at time t ₆₈ to end the processing.

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

As described above, in the voice dubbing system 1, the voice transmitter 10 transmits the track size of each track together with the ATRAC data, and the recorder 20 divides the data stream recorded on the optical disc D into an optical disc ( Record the start address and end address of each track in the U-TOC of D). This allows the audio dubbing system 1 to efficiently record the track selected by the user on the optical disc D. FIG. The recording unit 20 records ATRAC data as tracks corresponding to the transmitted data streams, and simultaneously divides the data streams of one track to improve the utilization efficiency of the optical disc D. Record on the optical disc D.

With reference 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 voice dubbing system of the second embodiment, the same parts and components as those of the voice dubbing system 1 are denoted by the same reference numerals and detailed description thereof will be omitted for simplicity.

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

Like the voice dubbing system 1 described above, the voice dubbing system 40 stores ATRAC data in advance in the server 12 of the voice transmitter 10a, and the user in the voice data stored in the server 12. Selects the desired ATRAC data and records the selected data on the recording medium.

The voice dubbing system 40 includes a main controller 11, a server 12, an operation input unit 13, a display unit 14 and a prepaid card reader 15, and a voice transmitter 10a and a recording unit 20a. It is configured to include.

The prepaid card reader 15 is a device for collecting a charge 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 a fee. The method for collecting the total amount of the charges for the contents supplied by the voice dubbing system 40 is not limited to those using a prepaid card, and various cards, cash, and the like may be used. The prepaid card reader 15 updates the fee of the prepaid card based on this information. If you pay in cash instead of a prepaid card, the balance is returned to you.

The recording unit 20a detects a state of a protection switch called a false recording prevention pawl. This protective switch is provided to prevent a false record by the user. If the protection switch is set to be unrecordable, the recording unit 20a cannot record audio data. If the protection switch of the optical disc D is set to be unrecordable, the recording unit 20a supplies the protection switch detection information to the main controller 11 of the audio transmitter 10a.

The recording unit 20a also detects PTOC information and UTOC information of the optical disc D. The recording unit 20a detects, based on the PTOC information, the type of the optical disc D, that is, whether the optical disc D is a magneto-optical disc that can be recorded / reproduced or an optical disc for reproduction. The recording unit 20a also detects an empty capacity of the optical disc D based on the UTOC information. The recording unit 20a supplies the information to the main controller 11 of the voice transmitter 10a.

The main controller 11 records the voice data transmitted from the server normally on the optical disc D before the voice data is transmitted from the voice transmitter 10a based on the supplied protection switch information, PTOC / UTOC information and fee information. Determine if it can be. If it is determined that recording can be performed normally, ATRAC data is allowed to be transmitted from the voice transmitter 10a. The procedure of the error judging process will be described below using the flowchart of FIG. When the user inserts the optical disc D, the main controller 11 of the voice dubbing system 40 performs the process from step S31 before starting recording of the ATRAC data.

In step S31, the main controller 11 acquires protection switch detection information from the recording unit 20a. In the next step S32, it is judged whether or not the optical disc D is in the recording prohibited state. If the optical disc D is in the recording prohibition state, the main controller 11 proceeds to step S33, and displays an error message. If the optical disc D is not in the recording prohibition 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 unit 20a. In the next step S35, the main controller 11 determines whether the PTOC information can be read normally. If the PTOC information cannot be read, the optical disc D cannot record data. Therefore, the main controller 11 proceeds to step S33 to display an error message. If the PTOC information cannot be read, the main controller 11 proceeds to step S36.

In step S36, the main controller 11 determines whether the inserted optical disc D is a recordable optical disc, based on the PTOC information. If the disc is a non-writable disc, the main controller 11 proceeds to step S33 to display 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 the UTOC information can be read normally. If the UTOC information can be read normally, the main controller 11 proceeds to step S41. If the UTOC information cannot be read normally, the main controller 11 proceeds to step S38 to display 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 cannot be read, there is a possibility that the UTOC is reset to a normal state by initializing the optical disc D. If an initialization request is made by the user, the main controller 11 goes to step S39 to initialize the optical disc D, and proceeds to step S40. If no initialization request is 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 the optical disc has been successfully initialized. If the discrimination result is affirmative, the main controller 11 proceeds to step S41, and if not, the main controller 11 proceeds to step S33 and displays an error message.

In step S41, the main controller 11 allows the user to select ATRAC data to be recorded on the optical disc D. FIG. That is, the main controller 11 displays the content stored in the server 12 on the display unit 14, and allows the user to specify the content using the operation input unit 13 based on the display. If the user selects the 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 disc D. If the sum of the capacities of the selected ATRAC data is less than the free 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 free 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 are not to be stored or which of the ATRAC data already recorded on the optical disc D is to be erased. do. If it is determined that none of the plurality of selected ATRAC data is recorded, the main controller 11 compares the total capacity of ATRAC data excluding the ATRAC determined not to be recorded with the free capacity of the optical disc D. If the user determines that any of the ATRACs already recorded is to be erased, the main controller 11 proceeds to step S42, where the free space of the optical disc D containing the selected ATRAC data total and the ATRAC data to be erased. Compare

If at step S43 the user determines that none of the recorded ATRAC data is erased and none of the ATRAC data already recorded on the optical disc D is deleted, the main controller 11 performs the step ( Proceed to S33) and display an error message.

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

If the balance is less than the total amount of the selected contents, the main controller 11 proceeds to step S45 to indicate that the balance is insufficient, and the user will not record any of the plurality of selected contents or add money. Have them 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 to display the total amount of charges and the balance of the contents except the contents determined not to be recorded in the step S44. Compare. If the user determines to pay additional money, the main controller 11 compares the total amount of charges and the balance of the contents selected in step S44. In step S45, if the user does not record any of the plurality of selected contents or makes a judgment about additional payment of money, the main controller 11 returns to step S33 and displays an error message. .

In step S46, the main controller 11 displays the final confirmation. If the user wishes to reselect based on this indication, 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 allowing the transmission of the selected ATRAC data is transmitted to the server 12, and the ATRAC data is transmitted from the server 12 to the optical disk D and recorded on the optical disk D. FIG. Subsequent recording processing is similar to that described in the voice dubbing system 1.

If in step S43 the user determines that any of the ATRAC data recorded on the optical disc D is erased, in step S46 the main controller 11 reads the ATRAC data from the server 12 in the optical disc D. ), And erases 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 finished, the optical disc D is ejected in step S48, and the process ends.

When the main controller 11 performs the processing from step S31 to step S48, it is possible to ensure the recording of the ATRAC data.

On the other hand, in the display process of the error message in step S33, the display content can be changed corresponding to the error content. For example, if the protection switch of the optical disc D is in the write prohibited state, the message "The disc is write prohibited" will be displayed. If the PTOC information cannot be read or a read-only optical disc is loaded, the message "The disc may be confused" or the message "This disc is read-only" will be displayed respectively.

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

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

1 and 20, although the server 12 is configured to be installed in the voice transmitter 10, the server 12 is installed in a remote information center, the voice transmitter 10 using ISDN or an analog telephone line. You can also connect with. In this case, the portion corresponding to the audio transmitter 10 of FIG. 1, in which the server 12 is removed, 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 remotely.

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

2 shows a data structure on a magneto-optical disk embodying the present invention.

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

Fig. 4 is a diagram showing the data structure of the U-TOC sector 0 which is a management area on the magneto-optical disk according to the present invention.

5 is a diagram showing a data structure of a slot on the U-TOC, which is a management area on the magneto-optical disk according to the present invention.

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

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 according to the present invention.

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

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

Fig. 10 is a diagram showing the data structure of the U-TOC sector 4 which is a management area on the magneto-optical disk according to 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 voice transmitter 10 and the recording unit 20 according to the present invention.

12B shows the compressed voice data ATRAC transmitted from the voice transmitter 10 to the recorder 20, the request signal Data Req transmitted from the recorder 20 to the voice transmitter 10, and the processing timing on the recorder. Timing chart.

12C shows a command signal transmitted from the voice transmitter 10 to the recording unit 20, an acknowledgment signal ACK transmitted from the recording unit 20 to the voice transmitter 10, and timing for processing on the recording unit. It is a chart.

Fig. 13 is a flowchart showing dubbing processing by the recording unit 20 according to 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 a music program recorded on the optical disc D according to the present invention.

15A is a timing chart of the compressed voice data ATRAC transmitted from the voice transmitter 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 transmitter 10.

FIG. 15C is a timing chart illustrating a command signal transmitted from the voice transmitter 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 voice transmitter 10.

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

FIG. 16A is a timing chart illustrating a command signal transmitted from the voice transmitter 10 to the recording unit 20.

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

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

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

FIG. 17A is a timing chart illustrating a command signal transmitted from the voice transmitter 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 voice transmission unit 10.

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

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

18A is a timing chart illustrating a command signal transmitted from the voice transmitter 10 to the recording unit 20.

18B is a timing chart showing an acknowledgment signal ACK transmitted from the recording unit 20 to the voice transmitting unit 10.

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.

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.

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

* Explanation of symbols on the main parts of the drawings

1,40. Voice Dubbing System 2. Connecting Line

10,10a. Voice transmitter 11. Main controller

12. Server 13. Operation Inputs

14. Display 15. Prepaid card reader

20,20a. Log 21. Memory Controller

22.RAM 23.Encoding / Decoding Circuit

32. System Controller

Claims (12)

In a transmission / reception system, It consists of a transmitter and a receiver, Wherein the transmitter, Memory means for storing a plurality of compressed data; It comprises a transmission means for transmitting the compressed data selected by the user, The receiver, Receiving means for receiving compressed data transmitted from the transmitter; Recording means for recording the compressed data on a recording medium; Detecting means for detecting recording prohibition information of the recording medium; Display means for displaying an error message to notify a user of a prohibition of recording corresponding to detection by the detection means; And transmitting means for transmitting a request signal to the transmitter if the recording medium is normal in response to the detection result by the detecting means. The method of claim 1, And the detecting means comprises comparing 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 of claim 1, And the detecting means detects erasure protection information of the recording medium. The method of claim 1, And said detecting means detects whether the recording medium is a read-only medium or a recordable medium. The method of claim 1, And a recording medium has a program area and a management area, and the detection means detects whether the recording medium is normal or abnormal based on the management information reproduced from the management area. The method of claim 1, It further comprises a balance detection means for detecting the balance of the amount deposited by the user, And the display means for displaying an error message displays the balance for the user based on the detection result of the balance detection means. Detecting prohibition of recording of the recording medium; Displaying an error message to notify a user of a result of recording prohibition based on the detection result; A sending step of sending request information to the server if the recording medium is normal based on the detection result; Receiving compressed data transmitted from a server; And recording the compressed data on a recording medium. The method of claim 7, wherein And comparing the capacity of the recordable area of the recording medium with the capacity of the compressed data from the server. The method of claim 7, wherein And the detecting step detects erasure protection information of the recording medium. The method of claim 7, wherein And the detecting step determines whether the recording medium is a read-only medium or a recordable medium. 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. The method of claim 7, wherein Detecting a balance of the amount deposited by the user, And displaying an error message for notifying the user of the shortage of the balance on the basis of the detection result of the balance by the detecting means.