Timing recovery apparatus and method for digital TV using envelope of timing error
US6757024B2 · kind B2 · utility
3Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A timing recovery apparatus and method for a digital TV is disclosed. The timing recovery apparatus includes: a symbol synchronization unit for determining the bandwidth of a timing recovery loop in a plurality of steps according to a convergence degree; and a timing lock detector for detecting a lock using a reference value calculated by the envelope of a timing error, whereby the envelope of the timing error calculated according to a channel state is used as a reference value for thereby preventing a lock error and assuring a rapid and accurate convergence characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.