Channel selection device for use in digital/analog broadcasting receiver and digital/analog broadcasting receiver equipped with the same
US7546620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2002 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jan 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A channel selection device of the invention used in a digital/analog broadcasting receiver, upon reception of a channel changing instruction sent from input device, tries to select a desired channel by referencing its VCT if it can find channel information in a memory and, if it could not find the desired channel and failed in channel selection, obtains the latest VCT to thereby select such a channel in the VCT that has the smallest sub-channel number in the same main channel or select such a channel that has the smallest sub-channel number in the same physical channel. Thus, if a channel specified in the channel changing instruction sent from the user has no broadcast therethrough and failed to be selected, an appropriate channel is selected automatically, thus avoiding a state that nothing is displayed on the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.