JPS5443712A - Pcm signal transmitter - Google Patents
Pcm signal transmitterInfo
- Publication number
- JPS5443712A JPS5443712A JP11016977A JP11016977A JPS5443712A JP S5443712 A JPS5443712 A JP S5443712A JP 11016977 A JP11016977 A JP 11016977A JP 11016977 A JP11016977 A JP 11016977A JP S5443712 A JPS5443712 A JP S5443712A
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- synchronous
- signals
- interpolated
- data
- 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.)
- Granted
Links
Landscapes
- Synchronizing For Television (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To easily produce data synchronous signals by detecting the data synchronous signals with the use of a tuning circuit, when PCM signals are to be demodulated, so as to detect the starting timing of the data after the deficient period.
CONSTITUTION: Under a normal operation, if data synchronous signals pd are deficient, equivalent synchronous pulses pd2 are interpolated so that the starting timing can be correctly detected. In case horizontal synchronous signals HD cannot be correctly separated due to the existence of the drop-out and noizes so that the pulses pd2 are not correct, an AND gate 50 is closed by the detected output of a synchronous pulse detecting circuit 49 so that the pulses pd2 are prohibited from being interpolated. If the synchronous pulses pd1 and the pulses pd2 become coincident in phase for a period of two fields after the prohibition of the interpolation, the pulses pd2 are interpolated again from the pulse detecting circuit 49 so that the detected output of 1 can be generated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11016977A JPS6052504B2 (en) | 1977-09-13 | 1977-09-13 | PCM signal transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11016977A JPS6052504B2 (en) | 1977-09-13 | 1977-09-13 | PCM signal transmission equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5443712A true JPS5443712A (en) | 1979-04-06 |
JPS6052504B2 JPS6052504B2 (en) | 1985-11-19 |
Family
ID=14528790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11016977A Expired JPS6052504B2 (en) | 1977-09-13 | 1977-09-13 | PCM signal transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6052504B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938913A (en) * | 1982-08-27 | 1984-03-03 | Matsushita Electric Ind Co Ltd | Pcm sound recording and reproducing device |
JPS6451719A (en) * | 1987-08-22 | 1989-02-28 | Kenwood Corp | Reproducing circuit for self-synchronizing clock signal |
-
1977
- 1977-09-13 JP JP11016977A patent/JPS6052504B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938913A (en) * | 1982-08-27 | 1984-03-03 | Matsushita Electric Ind Co Ltd | Pcm sound recording and reproducing device |
JPS6451719A (en) * | 1987-08-22 | 1989-02-28 | Kenwood Corp | Reproducing circuit for self-synchronizing clock signal |
Also Published As
Publication number | Publication date |
---|---|
JPS6052504B2 (en) | 1985-11-19 |
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