Channel selection in digital television
US6661472B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/443
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus implementing a technique for selecting a channel in a digital television. In one implementation, selecting a channel includes: receiving a major and minor channel number sequence, including a major channel number, a delimiter, and a minor channel number, where the delimiter separates the major channel number and the minor channel number; identifying a physical channel which corresponds to the major and minor channel number sequence by accessing a channel look up table, where the channel look up table includes correspondences between major and minor channel number sequences and physical channels; identifying a virtual channel table which corresponds to the physical channel, where the virtual channel table indicates a virtual channel which corresponds to the major and minor channel number sequence; tuning to the physical channel to receive a signal carried on the physical channel; and decoding the virtual channel from the tuned signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.