Apparatus for detecting synchronization
US8040435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A synchronization detecting apparatus includes a counter, an error detector, and a line length generator. The counter counts to a predetermined counter value in response to a clock signal. The error detector generates an error, which is the difference between a current counter value received from the counter and a previous line length, in response to a synchronization flag signal. The line length generator generates a current line length based on a compensated error and the predetermined counter value. The synchronization flag signal has an active level at a transitioning edge of a synchronization pulse signal contained in an input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.