Synchronization pulse detection circuit
US7176979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A synchronization pulse detector includes an absolute value independent shape detector for processing samples of an input signal having a synchronization pulse and a plurality of non-synchronization pulses to determine whether such samples have a predetermined sequence. The predetermined sequence includes a first and second absolute value independent time-varying portions and a first and second absolute value independent non-time varying portions. One of the first and second absolute value independent time-varying portions having a positive slope and the other one of the first and second absolute value independent time-varying portions having a negative slope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.