JPS5552515A - Pcm signal processor - Google Patents
Pcm signal processorInfo
- Publication number
- JPS5552515A JPS5552515A JP12534778A JP12534778A JPS5552515A JP S5552515 A JPS5552515 A JP S5552515A JP 12534778 A JP12534778 A JP 12534778A JP 12534778 A JP12534778 A JP 12534778A JP S5552515 A JPS5552515 A JP S5552515A
- Authority
- JP
- Japan
- Prior art keywords
- error
- code
- circuit
- data
- signal
- 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
Abstract
PURPOSE: To prevent the generation of an unpleasant sound based on error detection of error data, by detecting error regenerated data by using a "P" coee and "Q" code, used for error corrections, in addition to a cyclic code.
CONSTITUTION: When cyclic code CRC circuit 3 detects an error block while an input signal is sequentially written in memory method 1, an ERROR signal from memory method 1 becomes "1" and DATA is cut off by AND gate circuit 4. Then, correct data are restored by error data correction circuits 9 and 6 using a "P" code and "Q" code and outputted through AND gate circuit 7. Next, when circuit 3 fails to detect the error data, signal ERROR is "0" and error detection signals of the "P" code and "Q" code are outputted as output signal from exclusive-OR gate circuits 13 and 14; and an output from OR gate circuit 10 is "1" and the output signal of circuit 6 is outputted from AND gate circuit 7. If a drop-out generated on a transmission line is extremely long, corrections are impossible and an output from correction disability detection circuit 17 becomes "1", so that interpolation signal generating circuit 12 will output an interpolation signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12534778A JPS5552515A (en) | 1978-10-11 | 1978-10-11 | Pcm signal processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12534778A JPS5552515A (en) | 1978-10-11 | 1978-10-11 | Pcm signal processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5552515A true JPS5552515A (en) | 1980-04-17 |
Family
ID=14907860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12534778A Pending JPS5552515A (en) | 1978-10-11 | 1978-10-11 | Pcm signal processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5552515A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048150A1 (en) * | 1980-09-16 | 1982-03-24 | Kabushiki Kaisha Toshiba | A PCM signal processor |
EP0048151A1 (en) * | 1980-09-16 | 1982-03-24 | Kabushiki Kaisha Toshiba | A PCM signal processor |
JPS57148441A (en) * | 1981-03-10 | 1982-09-13 | Victor Co Of Japan Ltd | Error corrector |
JPS57148440A (en) * | 1981-03-10 | 1982-09-13 | Victor Co Of Japan Ltd | Measurement system for transmission error rate |
JPS57157654A (en) * | 1981-03-25 | 1982-09-29 | Mitsubishi Electric Corp | Error correcting circuit |
JPS57171860A (en) * | 1981-04-16 | 1982-10-22 | Sony Corp | Method for encoding error correction |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS558624A (en) * | 1978-06-30 | 1980-01-22 | Toshiba Corp | Signal recording and reproducing system |
JPS558623A (en) * | 1978-06-30 | 1980-01-22 | Toshiba Corp | Signal recording and reproducing system |
-
1978
- 1978-10-11 JP JP12534778A patent/JPS5552515A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS558624A (en) * | 1978-06-30 | 1980-01-22 | Toshiba Corp | Signal recording and reproducing system |
JPS558623A (en) * | 1978-06-30 | 1980-01-22 | Toshiba Corp | Signal recording and reproducing system |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048150A1 (en) * | 1980-09-16 | 1982-03-24 | Kabushiki Kaisha Toshiba | A PCM signal processor |
EP0048151A1 (en) * | 1980-09-16 | 1982-03-24 | Kabushiki Kaisha Toshiba | A PCM signal processor |
JPS57148441A (en) * | 1981-03-10 | 1982-09-13 | Victor Co Of Japan Ltd | Error corrector |
JPS57148440A (en) * | 1981-03-10 | 1982-09-13 | Victor Co Of Japan Ltd | Measurement system for transmission error rate |
JPH0452017B2 (en) * | 1981-03-10 | 1992-08-20 | Victor Company Of Japan | |
JPS57157654A (en) * | 1981-03-25 | 1982-09-29 | Mitsubishi Electric Corp | Error correcting circuit |
JPS57171860A (en) * | 1981-04-16 | 1982-10-22 | Sony Corp | Method for encoding error correction |
JPH0147943B2 (en) * | 1981-04-16 | 1989-10-17 | Sony Corp |
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