KR970003079A - Error correction code processing unit - Google Patents
Error correction code processing unit Download PDFInfo
- Publication number
- KR970003079A KR970003079A KR1019950018636A KR19950018636A KR970003079A KR 970003079 A KR970003079 A KR 970003079A KR 1019950018636 A KR1019950018636 A KR 1019950018636A KR 19950018636 A KR19950018636 A KR 19950018636A KR 970003079 A KR970003079 A KR 970003079A
- Authority
- KR
- South Korea
- Prior art keywords
- parity
- signal
- parity signal
- external
- error correction
- Prior art date
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Classifications
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- 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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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
본 발명은 에러 정정 코드 처리 장치에 관한 것으로, 외부로부터 전화선 또는 케이블을 통하여 전송되는 시간 압축 주문형 비디오 데이타, 즉 디지탈 영상 데이타를 저장하는 제1 및 제2RAM(random access memory:40,42)과, 외부 패리티 및 내부 피리티 신호로 이루어진 에러 정정 코드 처리를 위한 제어 신호를 발생하는 패리티 신호 처리부(44)와, 패리티 신호 처리부(44)에서 발생된 제어 신호에 따라 디지탈 영상 데이타에 외부 패리티 신호를 부가하며 외부 패리티 신호 처리 완료시 완료 신호를 발생하는 제1디지탈 신호 처리부(46)와, 제1디지탈 신호 처리부(46)에서 처리된 외부 패리티 신호를 저장하는 제3RAM(48)과, 패리티 신호처리부(44)에서 발생된 제어신호에 따라 디지탈 영상 데이타에 내부 패리티 신호를 부가하며 제1디지탈 신호처리부(46)에서 발생된 외부 패리티 신호 처리 완료 신호 수신시 제2RAM(48)으로부터 외부 패리티 신호를 독출한 후 외부 패리티 신호에 대한 내부 패리티 신호를 부가하고, 모든 패리티 신호의 처리가 완료되면 데이타트랙을 형성하는 제2디지탈 신호 처리부(50)를 포함하고 구성되어, 외부 패리티 신호 및 내부 패리티 신호를 동시에 병렬 처리하기 때문에 종래와 같이 시간적 제약을 받지 않고 빠른시간 내에 패리티 신호를 처리할 수 있는 효과가 있다.The present invention relates to an error correction code processing apparatus, comprising: first and second random access memories (RAMs) 40 and 42 for storing time-compressed video-on-demand video data, ie, digital image data, transmitted from an outside via a telephone line or a cable; An external parity signal is added to the digital image data according to a parity signal processor 44 generating a control signal for error correction code processing consisting of an external parity signal and an internal parity signal, and a control signal generated by the parity signal processor 44. The first digital signal processor 46 generates a completion signal upon completion of the external parity signal processing, the third RAM 48 stores the external parity signal processed by the first digital signal processor 46, and the parity signal processor. The internal parity signal is added to the digital image data according to the control signal generated at 44 and the external signal generated by the first digital signal processor 46 is added. A second digital signal processor configured to read an external parity signal from the second RAM 48 when receiving the completion signal and add an internal parity signal to the external parity signal, and form a data track when all parity signals have been processed; It is configured to include (50), and because the parallel processing of the external parity signal and the internal parity signal at the same time, there is an effect that can process the parity signal in a short time without time constraints as in the prior art.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 영상 데이타 녹화시 카세트 테이프에 기록되는 데이타 트랙의 구성도, 제3도는 제2도에 도시된 데이타 트랙을 구성하는 싱크 블럭(sync block)의 구성을 나타낸 싱크 블럭의 구성도, 제4도는 본 발명의 바람직한 실시예에 따른 에러 정정 코드 처리 장치의 블럭도.FIG. 2 is a block diagram of a data track recorded on a cassette tape during video data recording. FIG. 3 is a block diagram of a sync block constituting a sync block constituting the data track shown in FIG. Fig. 1 is a block diagram of an error correction code processing apparatus according to a preferred embodiment of the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950018636A KR0181046B1 (en) | 1995-06-30 | 1995-06-30 | Apparatus for processing error correction codes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950018636A KR0181046B1 (en) | 1995-06-30 | 1995-06-30 | Apparatus for processing error correction codes |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970003079A true KR970003079A (en) | 1997-01-28 |
KR0181046B1 KR0181046B1 (en) | 1999-04-15 |
Family
ID=19419078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950018636A KR0181046B1 (en) | 1995-06-30 | 1995-06-30 | Apparatus for processing error correction codes |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0181046B1 (en) |
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1995
- 1995-06-30 KR KR1019950018636A patent/KR0181046B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0181046B1 (en) | 1999-04-15 |
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