Apparatus for generating timing signals for a digital television signal receiver
US5872815A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1996 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Feb 16, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/0349
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A QAM/VSB digital receiver is disclosed which includes a source of a QAM/VSB signal. An analog-to-digital converter is coupled to the QAM/VSB signal source, and is further responsive to a sample clock signal. A filter/complement is coupled to the analog-to-digital converter and has a first output terminal which produces a low-pass filtered QAM/VSB signal, and a second output terminal which produces a high-pass filtered QAM/VSB signal complementary to the low-pass filtered QAM/VSB signal. A sample clock generating circuit is coupled to the second output terminal of the filter/complement and produces the sample clock signal in response to the high-pass filtered QAM/VSB signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.