JPS55157115A - Pcm recording and reproducing device - Google Patents
Pcm recording and reproducing deviceInfo
- Publication number
- JPS55157115A JPS55157115A JP6421779A JP6421779A JPS55157115A JP S55157115 A JPS55157115 A JP S55157115A JP 6421779 A JP6421779 A JP 6421779A JP 6421779 A JP6421779 A JP 6421779A JP S55157115 A JPS55157115 A JP S55157115A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- address
- counter
- vertical synchronizing
- phase
- 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
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To pick up stably true PCM data from reproduced signals, by causing the specific address of a counting circuit to synchronize with the vertical synchronizing signal when the extracted vertical synchronizing signal and this specific address do not agree with each other in respect to phase for a prescribed time.
CONSTITUTION: When respective signals E and G of address "0" from pattern detector 28 and decoder 31 do not agree with each other in respect to phase, n- notation counter 32 counts count signals H n times and outputs count-up signal J to open gate 33, and therefore, signal E passes to reset counter 29. Then, the address of counter 29 is changed; and since decoder output G' of address "0" has the same phase as signal E, reset signal I resets counter 32 and stops the output of signal J to close gate 33, and counter 29 repeats the address state to cause decoder output G' of address "0" to synchronize with the front of vertical synchronizing signal SV. As a result, a true PCM signal is picked up stably from the reproduced signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6421779A JPS55157115A (en) | 1979-05-24 | 1979-05-24 | Pcm recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6421779A JPS55157115A (en) | 1979-05-24 | 1979-05-24 | Pcm recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55157115A true JPS55157115A (en) | 1980-12-06 |
Family
ID=13251697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6421779A Pending JPS55157115A (en) | 1979-05-24 | 1979-05-24 | Pcm recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55157115A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61137283A (en) * | 1984-12-07 | 1986-06-24 | Matsushita Electric Ind Co Ltd | Timing signal generator |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102012A (en) * | 1976-02-24 | 1977-08-26 | Sony Corp | Signal recorder/reproducer by pcm system |
JPS5353918A (en) * | 1976-10-27 | 1978-05-16 | Nec Corp | Detecting method for vertical synchronizing signal and its circuit |
JPS53143307A (en) * | 1977-05-20 | 1978-12-13 | Nec Corp | System for recording and reproducing modulated pulse codes |
-
1979
- 1979-05-24 JP JP6421779A patent/JPS55157115A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102012A (en) * | 1976-02-24 | 1977-08-26 | Sony Corp | Signal recorder/reproducer by pcm system |
JPS5353918A (en) * | 1976-10-27 | 1978-05-16 | Nec Corp | Detecting method for vertical synchronizing signal and its circuit |
JPS53143307A (en) * | 1977-05-20 | 1978-12-13 | Nec Corp | System for recording and reproducing modulated pulse codes |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61137283A (en) * | 1984-12-07 | 1986-06-24 | Matsushita Electric Ind Co Ltd | Timing signal generator |
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