JPS554773A - Code processing system of pcm-system recording and reproducing device - Google Patents
Code processing system of pcm-system recording and reproducing deviceInfo
- Publication number
- JPS554773A JPS554773A JP7838278A JP7838278A JPS554773A JP S554773 A JPS554773 A JP S554773A JP 7838278 A JP7838278 A JP 7838278A JP 7838278 A JP7838278 A JP 7838278A JP S554773 A JPS554773 A JP S554773A
- Authority
- JP
- Japan
- Prior art keywords
- data
- signal
- word
- forming
- pcm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Error Detection And Correction (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
PURPOSE: To improve an error correction effect by forming a word by arranging digital data, which is obtained by converting analogue signals of plural channels in the PCM system, and combination data on a basis of prescription.
CONSTITUTION: Right signal Rn-l sampled at a time before time l is delayed in a memory by time l and is arranged on n-th left signal Ln obtained by converting analogue signals of left and right channels, etc., in the PCM system, and further, parity signal Pn-2l based on the exclusive OR between (n-2l)-th left and right signal data Ln-2l and Rn-2l is arranged, thereby forming one word. Next, a similar word including left signal data Ln+1-3l, which precedes data Ln by 3l- 1, and successive words similar to this word are arranged, and finally, a CRC check signal is arranged, thereby forming video signal data of one horizontal period. By this arrangement, a continuous error is not generated in reproducing data, and errors are discrete. As a result, the correction of reproducing data for drop-out, etc., is performed easily and surely, and the error correction effect dependent upon interpolation is improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7838278A JPS554773A (en) | 1978-06-27 | 1978-06-27 | Code processing system of pcm-system recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7838278A JPS554773A (en) | 1978-06-27 | 1978-06-27 | Code processing system of pcm-system recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554773A true JPS554773A (en) | 1980-01-14 |
Family
ID=13660457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7838278A Pending JPS554773A (en) | 1978-06-27 | 1978-06-27 | Code processing system of pcm-system recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554773A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5753806A (en) * | 1980-09-16 | 1982-03-31 | Toshiba Corp | Processor of digital signal |
-
1978
- 1978-06-27 JP JP7838278A patent/JPS554773A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5753806A (en) * | 1980-09-16 | 1982-03-31 | Toshiba Corp | Processor of digital signal |
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