KR100228485B1 - Composite type optical disc recording/reproducing apparatus and data recording/reproducing method - Google Patents

Abstract

end. FIELD OF THE INVENTION The present invention relates to an optical disc recording / reproducing apparatus.

I. SUMMARY OF THE INVENTION An object of the present invention is to provide a hybrid optical disc recording / reproducing apparatus in which components having the same function among the components provided in the optical disc reproducing apparatus and the optical disc recording / reproducing apparatus are shared.

All. SUMMARY OF THE INVENTION A plurality of different optical record carriers comprising recordable optical record carriers, optical pickups for reproducing or recording data from each of the optical record carriers, and each of the optical pickups In the hybrid optical disk recording / reproducing apparatus having a plurality of servo drive unit for driving each recording medium,

Signal processing means for processing and outputting the signal reproduced from each optical recording medium by EFM signal, a common EFM decoder for decoding, error correction and outputting the signal processed EFM signal, and decoding and error correction reproduction data. A common interface for interfacing to the controller; an EFM encoder for encoding data input through the common interface into an EFM signal for recording on the recordable optical record medium; A path control unit for switching output paths of data and recording data, and a servo control signal for controlling the servo driver, and controlling the path control unit so that the decoded reproduction data can be input to the EFM encoder during data dubbing. It is characterized by consisting of a microcomputer.

la. Important use of the invention: It can be used in the composite product of the optical disc reproducing and recording apparatus.

Description

Hybrid optical disc recording / playback device and data recording / playback control method

The present invention relates to a hybrid optical disc recording / reproducing apparatus in which an optical disc reproducing apparatus and a recordable / reproducible optical disc recording / reproducing apparatus are integrally combined. The present invention relates to a device capable of unifying a portion to record, reproduce, or dub predetermined data, and a data recording / reproducing control method of the device.

Although compact discs have generally used CD-DA (Digital Audio) for recording pure music, they are widely used as an auxiliary recording device for recording images, characters, or computer data because of their large recording capacity. The CD recording / reproducing medium used for recording / reproducing data as described above is also called a CD family. The most representative CD family is CD-ROM, CD-I (Interactive), Photo CD, Video CD, etc., and recently appeared Compact Disc-Recordable (CD-R), Compact Disc ReWritable (CD-R / W). ) It is also an example of a CD family. The CR-R is used as a single recordable medium, and the CD-R / W is used as a repeatable recordable / reproducible medium.

As a result of the rapid development and widespread use of optical disc recording media, research and development of drives for recording data reproduced from any optical disc onto a second optical disc is also actively progressing. However, in order to reproduce predetermined data from any optical disc, a corresponding drive (reproducing drive) must exist first, and a corresponding recording apparatus (recording drive) is required to record the reproduced data again on any optical disc surface. Must exist. Therefore, in order to record data reproduced from an arbitrary optical disk surface on the second optical disk surface, two drives must be present, which can bring economic burden, and the problem of not meeting the trend of light and thin technology is becoming short. have.

Accordingly, an object of the present invention is to provide a hybrid optical disc recording / reproducing apparatus in which components of the same function are shared among the components provided in the optical disc reproducing apparatus and the optical disc recording / reproducing apparatus.

Still another object of the present invention is a composite optical disc recording / reproducing apparatus in which an optical disc reproducing apparatus and an optical disc recording / reproducing apparatus are integrated, capable of reproducing or dubbing predetermined data according to an optical disc mounting state. A data recording / reproducing control method of a composite optical disc recording / reproducing apparatus is provided.

To achieve the above object, the present invention provides a plurality of different optical record carriers comprising a recordable optical record carrier, optical pickups for reproducing or recording data from each of the optical record carriers, and each of the optical pickups. In the hybrid optical disk recording / reproducing apparatus having a plurality of servo drive unit for driving each of the optical recording medium and

Signal processing means for processing and outputting a signal reproduced from each optical recording medium by an EFM signal;

A common EFM decoder that decodes, error corrects, and outputs the processed EFM signal;

A common interface unit for interfacing decoded and error-corrected playback data to an external device;

An EFM encoder for encoding data input through the common interface unit into an EFM signal for recording on the recordable optical recording medium and outputting the encoded EFM signal to an optical output controller;

A path control unit for controlling the common interface unit to switch output paths of playback data and recorded data;

And a microcomputer for controlling the path controller to output the servo control signal for controlling the servo driver and to input the decoded reproduction data to the EFM encoder during data dubbing.

1 is a block diagram of a hybrid optical disk recording / reproducing apparatus according to an embodiment of the present invention.

2 is a recording / playback control flow chart of a hybrid optical disc recording / playback apparatus according to an embodiment of the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a block diagram of a hybrid optical disc recording / reproducing apparatus according to an embodiment of the present invention, and FIG. 2 shows recording / reproduction of the hybrid optical disc recording / reproducing apparatus according to an embodiment of the present invention. The reproduction control flow chart is shown. First, in FIG. 1, the CD-R / W disk 102 of the CD-R / W drive 100 rotates at a predetermined speed by the rotation of the spindle motor 106. The optical pickup 104 optically picks up the data recorded on the surface of the CD-R / W disk 102, converts the data into an RF signal, which is an electrical signal, and outputs the signal to the signal processing unit 110. The optical pickup 104 also enters a laser beam according to the encoded recording data under the control of an optical output control unit (not shown) and records it on the CD-R / W disk 102 surface. This optical pickup 104 is driven by a focus actuator for a focus servo and a tracking actuator for a tracking servo. The spindle motor 106 rotates at the constant speed CLV by a drive signal input from the servo driver 130, and the sled feed motor 108 is also rotated from the servo driver 130. The optical pickup 104 is driven on the CD-R / W disc 102 by driving with the input sled feed servo drive signal. On the other hand, the servo controller 128 outputs control signals for the rotation control of the disk 102 and the focusing and tracking control of the optical pickup 104 by the control of the microcomputer 114, and the servo driver 130 accordingly drives the drive signals accordingly. To the spindle motor 106 and the sled feed motor 108. Meanwhile, the signal processing unit 110 performs linear equalization processing and waveform shaping processing such as amplification, noise reduction, phase synchronization, etc. of the RF signal output from the optical pickup 104, and converts the signal into an EFM signal and outputs it to the EFM decoder 112. . The signal processor 110 processes the signal input from the EFM encoder 132 during data recording in the reverse process of data reproduction and outputs the signal to the light output controller (not shown). The EFM decoder 112 decodes the input EFM signal, performs error correction, and transmits the received EFM signal to the host computer through the interface 120. The interface 120 is connected to the DRAM 122 used for the data buffer and interfaces data transmitted and received between the host computer and the hybrid optical disc recording / reproducing apparatus according to the embodiment of the present invention. The path controller 124 connected to the PROM 126 switches the path of data transmitted and received with the host computer under the control of the microcomputer 124. The microcomputer 114 is a main control unit of the hybrid optical disc recording / reproducing apparatus according to an embodiment of the present invention, and includes a memory in which a control program for controlling the overall operation of the hybrid optical disc recording / reproducing apparatus is stored. The servo controller 128 and 212 are controlled to control the rotation of the discs 102 and 202 and to perform the focusing and tracking control of the optical pickups 103 and 204. In addition, the microcomputer 114 processes the control data input from the EFM decoder 112 and the EFM encoder 132 and transmits the reproduced data through the interface 120 to the host computer and simultaneously transmits the transferred data to the CD-R / W. Record on the disk 102 surface. The EFM encoder 132 encodes the data received through the interface 120 under the control of the microcomputer 114 and outputs the encoded data to the signal processor 110. Meanwhile, the CD-ROM disk 202, the optical pickup 204, the spindle motor 206, the sled feed motor 208, and the like, which are the mechanism components of the CD-ROM drive 200, are described as the microcomputer 114. It is operated by the servo control part and servo drive part controlled by the. The RF signal reproduced from the CD-ROM disc 202 is amplified, noise removed, linear equalized, and waveform-formed by the signal processor 210 and input to the EFM decoder 112 described above.

In the hybrid optical disc recording / reproducing apparatus having the above-described configuration, the EFM decoder 112, the interface 120, the DAC 116, the DRAM 122, and the PROM 126 are conventional CD-ROM drives and CD-R / These are the circuit components present in the W drive. Therefore, the circuit elements common to the CD-ROM drive and the CD-R / W drive can be shared and used as shown in FIG. 1.

Hereinafter, a predetermined data reproduction process, a recording process and a dubbing process of the hybrid optical disc recording / reproducing apparatus having the above-described configuration will be described with reference to FIG.

Referring to FIG. 2, the microcomputer 114 first checks whether there is an instruction to play predetermined data from the host computer in step 300. If there is a data reproducing command, the microcomputer 114 proceeds to step 302 to check whether a disk exists in all drives. If the disk exists in all drives, the microcomputer 114 proceeds to step 306 to drive the CD-ROM drive 200. In an embodiment of the present invention, the CD-ROM drive 200 is preferentially driven, but the CD-R / W drive 100 may be preferentially driven. Thereafter, the microcomputer 114 controls the overall operation of the CD-ROM drive 200 such that predetermined data can be reproduced from the CD-ROM disk 202 in step 308. As a result, the data reproduced from the CD-ROM disc 202 is transmitted to the host computer through the signal processor 210, the EFM decoder 112, and the interface 120. If only the CD-ROM disc 202 is loaded as a result of step 302, the microcomputer 114 performs steps 306 and 308 to play predetermined data from the CD-ROM disc 202 as described above, and the CD-R / If only the W disk 102 is mounted, steps 312 and 314 are performed to play predetermined data from the CD-R / W disk 102. FIG. That is, the CD-ROM drive 200 is driven when both disks are mounted at the time of the playback command, and the predetermined data is played by driving only the corresponding drive when the disk is mounted only on a specific drive.

On the other hand, if a recording command other than a playback command is received from the host computer, the microcomputer 114 checks whether the recording command is a dubbing command in step 318. The "dubbing command" will be defined as a command to record data reproduced by the CD-ROM drive 200 on the CD-R / W disc 102 surface. That is, when a command to simply record predetermined data is received from the host computer, the microcomputer 114 proceeds to step 324 to drive the CD-R / W drive 100. At this time, the microcomputer 114 controls the path controller 124 such that data transmitted from the host computer is input to the EFM encoder 132 through the interface 120. Accordingly, the recorded data transmitted from the host computer is encoded by the EFM encoder 132 and then recorded on the CD-R / W disc 102 through the signal processor 110, the optical output controller, and the optical pickup 104.

However, if a dubbing command is received from the host computer in step 318, the microcomputer 114 proceeds to step 320 to perform dubbing. That is, the CD-ROM drive 200 is first driven to reproduce predetermined data from the CD-ROM disc 202. The data reproduced from the CD-ROM disc 202 is amplified by the signal processor 210, noise removed, waveform-formed, decoded and error-corrected by the EFM decoder 112, and then input to the interface 120. The reproduction data input to the interface is inputted to the EFM encoder 132 again by the path switching of the path controller 124 controlled by the microcomputer 114. The microcomputer 114 drives the CD-R / W drive 100 again so that the encoded reproduction data is transmitted to the CD-R / W disc 102 through the signal processor 110, the light output controller, and the optical pickup 104. It will be written on the page. Through such a series of operations, data reproduced on the CD-ROM disc 202 can be recorded on the CD-R / W disc 102.

As described above, the present invention can easily implement data reproduction, recording or dubbing by sharing common circuit configurations existing between the CD-ROM drive and the CD-R / W drive.

Meanwhile, in the exemplary embodiment of the present invention, a compound optical disc recording / playing apparatus in which a CD-ROM drive and a CD-R / W drive are integrated is exemplified, but a CD-R drive and a CD-ROM drive are integrated without any modification. The present invention can also be applied to a complex optical disc recording / reproducing apparatus.

As described above, the present invention has the advantage of reducing the production cost by unifying the common circuit components that are common when integrating two or more optical disk reproducing apparatuses, and at the same time, depending on the optical disk mounting state. Can only drive selectively, there is an advantage that can be expected to reduce the dubbing time.

Claims (5)

A plurality of different optical record carriers comprising recordable optical record carriers, optical pickups for reproducing or recording data from each of the optical record carriers, and for driving each of the optical pickups and each of the optical record carriers In a compound optical disk recording / reproducing apparatus having a plurality of servo drives, Signal processing means for processing and outputting a signal reproduced from each optical recording medium by an EFM signal; A common EFM decoder that decodes, error corrects, and outputs the processed EFM signal; A common interface unit for interfacing decoded and error-corrected playback data to an external device; An EFM encoder for encoding data input through the common interface unit into an EFM signal for recording on the recordable optical recording medium and outputting the encoded EFM signal to an optical output controller; A path control unit for controlling the common interface unit to switch output paths of playback data and recorded data; And a microcomputer for controlling the path control unit to output the servo control signal for controlling the servo drive unit and to input the decoded reproduction data to the EFM encoder during data dubbing. / Playback device. The hybrid optical disc recording / reproducing apparatus according to claim 1, wherein the hybrid optical disc recording / reproducing apparatus is configured by integrating a CD-ROM drive and a CD-R / W drive. The hybrid optical disc recording / reproducing apparatus according to claim 1, wherein the hybrid optical disc recording / reproducing apparatus is constructed by integrating a CD-ROM drive and a CD-R drive. Repeatable recording / reproducing optical recording medium, reproducing optical recording medium, optical pickups for reproducing or recording data from each of the optical recording mediums, servo for driving each of the optical pickups and each of the optical recording mediums. A drive unit, signal processing means for processing and outputting a signal reproduced from each optical recording medium by an EFM signal, a common EFM decoder for decoding and error correction and outputting a signal processed EFM signal, and decoding and error correction completed reproduction data A common interface for interfacing the external device to an external device, an EFM encoder for encoding the data input through the common interface into an EFM signal for recording on the recordable optical recording medium, and outputting the encoded data to an optical output controller; Path control unit for switching the output path of the playback data and the recording data by controlling In the hybrid optical disc recording / data recording / reproducing a method, which, Checking whether the optical recording medium is mounted during data reproduction, reproducing predetermined data from a drive equipped with the optical recording medium, and outputting the predetermined data to the interface unit; When data dubbing, the data path is switched so that data reproduced from the read-only optical recording medium is input to the EFM encoder through the interface unit, and then the data-only dubbing is performed by driving the read-only optical recording medium and the repeatable recording / reproducing optical recording medium. The process of performing, And recording only the recording data received from the outside on the surface of the optical recording medium capable of repeating recording / reproducing by driving only the optical recording medium capable of repeating recording / reproducing during data recording. 5. The data recording / reproduction control method according to claim 4, further comprising: driving only a reproducing optical recording medium when all of the optical recording media are mounted during data reproduction.

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