JPS5665316A - Processor for digital signal - Google Patents
Processor for digital signalInfo
- Publication number
- JPS5665316A JPS5665316A JP14025679A JP14025679A JPS5665316A JP S5665316 A JPS5665316 A JP S5665316A JP 14025679 A JP14025679 A JP 14025679A JP 14025679 A JP14025679 A JP 14025679A JP S5665316 A JPS5665316 A JP S5665316A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- counter
- subblock
- synchronizing signal
- pbk
- 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 make it secure for a reproduction system, of digital VTR to number subblock by controlling a clock counter by detecting the block synchronizing signal of the 1st subblock in a field.
CONSTITUTION: This processor is equipped with circuit 323 that extracts block synchronizing signal BK from input data, circuit 50 that obtains block synchronizing signal PBK of the 1st subblock of a main block, and counters 61 and 62 that count clocks from PLL321 and, when counting up as many as arrival interval N of signal BK, obtain output pulses CN1 and CN2. Counter 61 self-correlates to signal BK by pulse CN1 and counter 62 is controlled by self-correlated block synchronizing signal A1 and signal PBK. By the output pulse of counter 62 and signal PBK, absent signal BK is restored and an influence of a mixed false pulse is eliminated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14025679A JPS5665316A (en) | 1979-10-30 | 1979-10-30 | Processor for digital signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14025679A JPS5665316A (en) | 1979-10-30 | 1979-10-30 | Processor for digital signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5665316A true JPS5665316A (en) | 1981-06-03 |
Family
ID=15264545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14025679A Pending JPS5665316A (en) | 1979-10-30 | 1979-10-30 | Processor for digital signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5665316A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5951638A (en) * | 1982-08-20 | 1984-03-26 | Sony Corp | Method and apparatus for correcting error of digital television signal |
JPS6168706A (en) * | 1984-09-12 | 1986-04-09 | Matsushita Electric Ind Co Ltd | Digital recording and reproducing device for television signal |
JPS6168775A (en) * | 1984-09-12 | 1986-04-09 | Matsushita Electric Ind Co Ltd | Television signal digital recording and reproducing device |
JPS61271670A (en) * | 1985-05-28 | 1986-12-01 | Sony Corp | Synchronization system for digital data |
-
1979
- 1979-10-30 JP JP14025679A patent/JPS5665316A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5951638A (en) * | 1982-08-20 | 1984-03-26 | Sony Corp | Method and apparatus for correcting error of digital television signal |
JPH0525233B2 (en) * | 1982-08-20 | 1993-04-12 | Sony Corp | |
JPS6168706A (en) * | 1984-09-12 | 1986-04-09 | Matsushita Electric Ind Co Ltd | Digital recording and reproducing device for television signal |
JPS6168775A (en) * | 1984-09-12 | 1986-04-09 | Matsushita Electric Ind Co Ltd | Television signal digital recording and reproducing device |
JPS61271670A (en) * | 1985-05-28 | 1986-12-01 | Sony Corp | Synchronization system for digital data |
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