Sync detecting method and sync detecting circuit
US5677935A · kind A · utility
25Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sync pattern detecting circuit detects a sync pattern from the input data to output a sync pattern detecting signal. A frame counter counts clock signals for the bit number of one frame to output a frame count signal. A sync manage circuit sets a window time area therein, and outputs a sync signal when the sync pattern detecting signal is input in the window time area. The width of the window time area is variable. The width of the window time area is controlled at timings at which the sync pattern detecting signal and the frame count signal are input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.