Equilibrium based horizontal sync detector for video decoder
US7173668B2 · kind B2 · utility
3Cited by
3References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Mar 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a horizontal sync detector circuit (10) comprising a filter portion (12), an equilibrium accumulator portion (14) coupled to the filter portion (12), a horizontal sync detector portion (16) coupled to the filter portion (12) and to the equilibrium accumulator portion (14), and an output logic portion (18) coupled to the horizontal sync detector portion (16), the output logic portion (18) adapted to produce a phase error (116) based on a combination of a coarse phase error (108) and a fine phase error (112).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.