KR100438288B1 - Method and system copying data in an optical disk reader/writer - Google Patents

Abstract

A data copying method and system of an optical recorder are published. A data copy system of an optical recorder according to the present invention comprises: a first pickup driver for driving a first pickup to read data recorded on a read-only disc; A first digital signal processor for demodulating the data read by the first pickup; A first micom that controls the first pickup driver and the first digital signal processor, and checks whether track increment is performed and extracts a track increment message; An interrupt signal transmitter for extracting a track increment message received from the first micom; An interrupt signal receiver configured to receive a track increment message from the track increment transmitter; A second micom that receives a track increment message from the track increment receiver and controls each unit of a recording system to perform track increment; A second pickup driving unit receiving a track increment command from the second micom to drive a second pickup; And a second digital signal processor for modulating the predetermined data transmitted by the second microcomputer and transmitting the modulated data to the pickup.

A data copying method of an optical recorder according to the present invention comprises the steps of: receiving a copy command message from a user; Receiving, by the first micom, the copy command message, the data recorded on the optical disk for reproduction only, to the second microcomputer and copying the data to the recordable optical disk; Checking, by the second micom, whether a track increment message is received during copying; When the track increment message is withdrawn from the first micom, the second micom receives the track increment message through a separate interrupt transmission line and performs track increment.

Therefore, when predetermined data is recorded on the double deck, there is an effect of generating accurate track information of the data currently being recorded.

Description

Data copying method and system of optical recorder {METHOD AND SYSTEM COPYING DATA IN AN OPTICAL DISK READER / WRITER}

The present invention relates to a method and a system for copying data of an optical recorder, and more particularly, to an operation of performing a copy function in an optical recorder having a double deck system. The present invention relates to a data copying method and system for an optical recording / reproducing apparatus having a separate interrupt transmission line for incremental message transmission to generate accurate track information of data.

Today, audio compact discs have become an essential audio medium, with the popularity of compact disc players, which has gained tremendous popularity due to the excellent sound quality.

Also, with the spread of portable compact disc players, music recorded on compact discs can be heard on the go.

Meanwhile, with the advent of double deck audio compact disc playback / recorders, anyone can record their voice or music recorded on another compact disc onto a blank compact disc without using a computer at home. You can create your own compact disc.

In addition, with the spread of the Internet environment, music using a computer is conveniently performed through files in the form of MP3 (one of the high-quality audio compression technologies defined by MPEG1). The MP3 file / song can be downloaded and used through a network such as the Internet. Accordingly, there is a wide spread of portable MP3 files / song players capable of playing such MP3 files / songs.

1 is a block diagram showing a general optical recording and reproducing system, and FIG. 2 is a diagram showing an optical disk on which a track increment is performed on a conventional recordable optical disk.

As shown in FIG. 1, a general optical recording and reproducing system includes a first microcomputer 100, a first pickup driving unit 102, and a first digital signal processing unit 103, and performs a reproducing operation. Means and a second optical recording / reproducing means for performing a copying operation, including a second microcomputer 105, a second pick-up driver 107 and a second digital signal processor 108.

When the first microcomputer 100 is supplied with power and receives a predetermined copy command message from the user, the first microcomputer 100 controls each unit of the reproduction system to operate the reproduction system.

The first pick-up driver 102 moves the pickup 101 to read data recorded on the optical disc under the control of the first microcomputer 100.

The first digital signal processor 103 demodulates the data read through the pickup 101 into original data, and transmits TOC information to the first microcomputer 100.

The second microcomputer 105 is connected to the first microcomputer 100 through serial communication, receives a copy command message and a track increment command message from the first microcomputer 100, and records the same. Each part of the system is controlled to operate the recording system.

The second pickup driving unit 107 receives the predetermined data transmitted through the first microcomputer 100 under the control of the second microcomputer 105, so that the pickup 106 can record data on the optical disc. Move it to

The second digital signal processor 108 modulates the predetermined data under the control of the second microcomputer 105 and records the predetermined data on a recordable optical disc.

Looking at the process of copying the data recorded on the reproduction-only optical disc to the recordable optical disc using the system as described above, the optical disc (CD-RW, CD-R) capable of recording the data recorded on the reproduction-only optical disc (CD-ROM) During the copying process, when the track of the optical disc for reproduction is incremented, the first microcomputer 100 transmits a track increment message to the second microcomputer 105. At this time, the second microcomputer 105 receives the track increment message provided from the first microcomputer 100 through the serial communication port. In this case, since the second microcomputer 105 performs a track increment operation after decoding the track increment message received from the first microcomputer 100, a time delay occurs. For example, as shown in Fig. 2, when the track increment message is transmitted from the CDP position by the first optical recording / reproducing means, the track increment received by the second optical recording / reproducing means is performed at the CDR position. .

Therefore, when the data is a song, when there is no silence between the song and the song, the start position time information of the song may be recorded incorrectly due to the delay of the track increment command.

In addition, when the user makes his own compact disc, there is a problem that even when the user stops at random during copying, even the part which is not desired by the user may be recorded.

In order to effectively solve the above problems of the prior art, an optical recording and reproducing apparatus is provided with a separate interrupt transmission line for transmitting a track increment command message between the first and second microcomputers so as to generate accurate track information. Its purpose is to provide a method and system for recording data.

1 is a block diagram showing a general optical recording and reproducing system.

FIG. 2 is a diagram showing an optical disc in which track increment is performed on a conventional recordable optical disc.

3 is a block diagram showing an optical recording and reproducing system according to a preferred embodiment of the present invention.

4 is a flowchart showing a data recording method of the optical recorder according to the preferred embodiment of the present invention.

<Description of reference numerals appearing in the drawing>

100,300: first micom 101,302: first pickup

102,304: first pickup drive unit 103,306: first digital signal processing unit

105,312: Second Micom 106,310: Second Pickup

107,312: second pickup driver 108,314: second digital signal processor

One aspect of the present invention for achieving the above technical problem is a first pickup drive unit for driving the first pickup to read the data recorded on the read-only disk;

A first digital signal processor for demodulating the data read by the first pickup;

A first micom that controls the first pickup driver and the first digital signal processor, and checks whether track increment is performed and extracts a track increment message;

An interrupt signal transmitter for extracting a track increment message received from the first micom;

An interrupt signal receiver configured to receive a track increment message from the track increment transmitter;

A second micom that receives a track increment message from the track increment receiver and controls each unit of a recording system to perform track increment;

A second pickup driving unit receiving a track increment command from the second micom to drive a second pickup;

And a second digital signal processor for modulating the predetermined data transmitted by the second microcomputer and transmitting the modulated data to the pickup.

Another aspect of the present invention for achieving the above technical problem is a step of receiving a copy command message from the user;

Receiving, by the first micom, the copy command message, the data recorded on the optical disk for reproduction only, to the second microcomputer and copying the data to the recordable optical disk;

Checking, by the second micom, whether a track increment message is received during copying;

If the track increment message is withdrawn from the first micom, the second micom receives a track increment message through a separate interrupt transmission line, and performs track increment.

Hereinafter, a method and a system for recording data of an optical recorder according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

3 is a block diagram showing an optical recording and reproducing system according to a preferred embodiment of the present invention, and FIG. 4 is a flowchart showing a data recording method of the optical recording and reproducing apparatus according to a preferred embodiment of the present invention.

As shown in Fig. 3, the optical recording and reproducing system according to the present invention includes a first microcomputer 300 which controls each unit for reproducing data recorded on a reproduction-only (CD-ROM) disc inserted into a first deck. And moving the position of the first pickup 302 to read the data recorded on the read only disc under the control of the first microcomputer 300. A first digital signal processor 306 for demodulating the data read by the first pickup driver 304 and the first pickup driver 304 into original data to transmit TOC information and useful information to the first microcomputer 300. And an interrupt signal transmitter 300a for transmitting a track increment message to a second optical recording / reproducing means under the control of the first microcomputer 300. An interrupt signal receiving unit 308a for receiving a track increment message from the bride 300a and a predetermined information are exchanged with the first microcomputer 300 using serial communication, and the track is received through the interrupt signal receiving unit 308a. A second micom 308 and the second micom 308 which control each part of the recording means to receive an increment message and record predetermined data provided from the first micom 300 on a recordable optical disc; Predetermined data transmitted through the second pickup driver 312 and the second micom 308 for moving the second pickup 310 to a desired position and recording the data to be recorded on the recordable optical disc by controlling the And second optical recording and reproducing means including a second digital signal processing section 314 for modulating the recording to a recordable optical disc.

In the present specification, the interrupt signal transmitter 300a and the interrupt signal receiver 308a are illustrated separately from the first microcomputer 300 and the second microcomputer 308 in order to clarify the characteristics of the present invention. It will be apparent to those skilled in the art that the interrupt signal transmitter 300a and the interrupt signal receiver 308a are implemented in the first microcomputer 300 and the second microcomputer 308, respectively.

Meanwhile, in one embodiment of the present invention, the interrupt signal transmitter 300a and the interrupt signal receiver 308a for transmitting the track increment message are separately implemented, but in another embodiment of the present invention, the track increment The message may be transmitted through the interrupt pins provided in the first microcomputer 300 and the second microcomputer 308.

4 is a flowchart showing a data recording method of the optical recorder according to the preferred embodiment of the present invention.

As shown in Fig. 4, in the data recording method of the optical recorder according to the present invention, a reproducing optical disc containing data to be copied by a user is inserted into the first optical record reproducing means, and the second optical record reproducing means A recordable optical disc is mounted. Then, a copy command message is received from the user (S400). In this case, the first microcomputer 300 controls the first pickup driver 304 to move the first pickup 302 to the data position to be copied by the user, and the predetermined data read by the first pickup 302. Is demodulated to original data and transmitted to the second optical recording / reproducing means.

Then, the second optical recording and reproducing means copies the predetermined data received from the first optical recording and reproducing means onto the recordable optical disc (S410).

In this case, the second microcomputer 308 checks whether the track increment message has been received through the interrupt signal receiving unit 308a (S420).

In the checking step (S420), when the second micom 308 receives the track increment message through the interrupt signal receiving unit 308a, the position information of the new track is recorded in the sub-Q area. To perform the step (S430).

On the other hand, when the track increment is not received in the checking step (S420), the second microcomputer 308 monitors the interrupt signal receiving unit 308a to continuously check whether the track increment message is received. (S450).

In other words, when the first microcomputer 300 detects a track increment, the first microcomputer 300 transmits a track increment message to the interrupt signal transmitter 300a. Then, the track increment message is transmitted to the interrupt signal receiving unit 308a through a separate interrupt transmission line.

Accordingly, since the second microcomputer 308 receives the track increment message directly through the interrupt signal receiving unit 308a, the second microcomputer 308 may generate accurate track information of the data currently being recorded without time delay.

On the other hand, it is checked whether all data to be copied are copied (S440), and when all the data desired by the user are copied, all operations are terminated.

On the other hand, if the data to be copied by the user is not all copied, the second micom 308 performs again from the step (S410) of copying the predetermined data transmitted from the first micom (300).

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the data recording method and system of the optical recorder according to the present invention, when predetermined data is recorded on the double deck, it is possible to generate accurate track information of the data currently being recorded.

Claims (3)

A first pickup drive unit for driving the first pickup to read data recorded on the read only disc; A first digital signal processor for demodulating the data read by the first pickup; A first micom that controls the first pickup driver and the first digital signal processor, and checks whether track increment is performed and extracts a track increment message; An interrupt signal transmitter for extracting a track increment message received from the first micom; An interrupt signal receiver configured to receive a track increment message from the track increment transmitter; A second micom that receives a track increment message from the track increment receiver and controls each unit of a recording system to perform track increment; A second pickup driving unit receiving a track increment command from the second micom to drive a second pickup; And a second digital signal processor for modulating the predetermined data transmitted by the second microcomputer and transmitting the modulated data to the pickup. Receiving a copy command message from a user; Receiving, by the first micom, the copy command message, the data recorded on the optical disk for reproduction only, to the second microcomputer and copying the data to the recordable optical disk; Checking, by the second micom, whether a track increment message is received during copying; And when the track increment message is withdrawn from the first micom, receiving the track increment message through a separate interrupt transmission line, and performing track increment. Data copy method of the optical recorder. The method of claim 1, And the interrupt signal transmitter and the interrupt signal receiver are provided in the first and second microcomputers, respectively.