KR980004785A - System decoder of digital video disc player - Google Patents
System decoder of digital video disc player Download PDFInfo
- Publication number
- KR980004785A KR980004785A KR1019960020510A KR19960020510A KR980004785A KR 980004785 A KR980004785 A KR 980004785A KR 1019960020510 A KR1019960020510 A KR 1019960020510A KR 19960020510 A KR19960020510 A KR 19960020510A KR 980004785 A KR980004785 A KR 980004785A
- Authority
- KR
- South Korea
- Prior art keywords
- data
- error correction
- unit
- error
- memory
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION
디지탈 비디오 디스트 재생장치.Digital video disc playback device.
2. 발명이 해결하고자 하는 기술적 과제2. Technical problem to be solved by the invention
디스크에서 독출한 ID데이타에 대한 처리시점을 앞당겨 디스크 서치시간에 참조하는 정보로서의 가치 정도를 높이고, 상기 정보 자체의 정확도를 높인 다지탈 비디오 디스크 재생장치를 제공함에 있다.It is an object of the present invention to provide a digital video disc reproducing apparatus which advances the processing time for ID data read out from a disc, increases the value of information referred to at the disc search time, and increases the accuracy of the information itself.
3. 발명의 해결방법의 요지3. Summary of Solution to Invention
디스크에서 읽은 데이타를 소정 비트로 이루어진 심볼단위로 복조하여 출력하는 복조부와, 섹터위치정보에 따라 디스크 서치 동작을 제어하는 주장치제어부를 구비한 디지탈 비디오 디스크 재생장치의 시스템 디코더에 있어서, 상기 디스크에 읽은 데이타로부터 섹터동기를 검출하는 동기검출부와, 상기 복조된 데이터에 대한 가로방향 에러정정을 하는 제1에러정정부와, 상기 가로방향으로 에러정정된 데이타를 버퍼링하는 데이타 버퍼부와, 상기 데이타 버퍼부에서 출력되는 데이타에 대한 세로방향 에러정정을 하는 제2에정정부와, 상기 복조부에서 출력되는 아이디 데이터 및 주데이터들을 모아 소정의 블럭단위로 저장하고 그 블럭단위로 독출하여 상기 제1 및 제2에러정정부로 전달하며, 상기 제2에러정정된 데이타를 다시 저장하는 메모리와, 상기 섹터동기가 검출되면 상기 데이타 버퍼부에서 출력되는 데이타중 아이디 데이타 부분만을 검출하여 아이디 에러 정정하고, 그 정정된 아이디 데이터를 상기 주장치제어부에 섹터위치정보로서 전송하는 아이디 에러정정부로 구성됨을 특징으로 한다.A system decoder of a digital video disc reproducing apparatus, comprising: a demodulator for demodulating and outputting data read from a disc in symbol units consisting of predetermined bits; and a main unit controller for controlling a disc search operation according to sector position information. A synchronous detection unit for detecting sector synchronization from data, a first error correction unit for transverse error correction on the demodulated data, a data buffer unit for buffering the error-corrected data in the transverse direction, and the data buffer unit A second error correction unit for correcting the vertical error of the data output from the data stream, and collecting the ID data and the main data output from the demodulator in a predetermined block unit and reading the block unit to read the first and second blocks. A memory for transmitting to the error correction unit and storing the second error corrected data again; When the sector synchronization is detected, ID error correction is performed by detecting only the ID data portion of the data output from the data buffer unit, and transmitting the corrected ID data to the main unit controller as sector position information. It is done.
4. 발명의중요한 용도4. Important uses of the invention
디지탈 비디오 디스크 서치에 필요한 섹터위치정보 검출Detecting Sector Location Information Required for Digital Video Disc Search
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제4도는 본 발명의 일실시예에 따른 디지탈 비디오 디스크 재생장치의 시스템 디코더의 구성을 나타낸 도면.4 is a diagram showing the configuration of a system decoder of a digital video disc player according to an embodiment of the present invention.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960020510A KR100235062B1 (en) | 1996-06-04 | 1996-06-04 | System decorder in a digital video disc reproducing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960020510A KR100235062B1 (en) | 1996-06-04 | 1996-06-04 | System decorder in a digital video disc reproducing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR980004785A true KR980004785A (en) | 1998-03-30 |
KR100235062B1 KR100235062B1 (en) | 1999-12-15 |
Family
ID=19461224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960020510A KR100235062B1 (en) | 1996-06-04 | 1996-06-04 | System decorder in a digital video disc reproducing apparatus |
Country Status (1)
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KR (1) | KR100235062B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100430657B1 (en) * | 1999-09-10 | 2004-05-10 | 마츠시타 덴끼 산교 가부시키가이샤 | Signal processor for correcting and detecting errors |
-
1996
- 1996-06-04 KR KR1019960020510A patent/KR100235062B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100430657B1 (en) * | 1999-09-10 | 2004-05-10 | 마츠시타 덴끼 산교 가부시키가이샤 | Signal processor for correcting and detecting errors |
US6912682B1 (en) | 1999-09-10 | 2005-06-28 | Matsushita Electric Industrial Co., Ltd. | Signal processor for correcting and detecting errors |
Also Published As
Publication number | Publication date |
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KR100235062B1 (en) | 1999-12-15 |
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