Channel selection device for use in broadcasting receiver and broadcasting receiver equipped with the same
US6833878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Jul 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/445
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a channel selection device used in a broadcasting receiver, each time a channel UP/DOWN key is pressed for changing a channel, the channel number is changed upward/downward by one immediately and, when the key is continuously held down for at least a predetermined time lapse, the first digit of the channel number is cleared to 0 and then the channel number is changed upward/downward by 10 every constant time lapse. Therefore, the channel can be changed constantly free of a fluctuation in changing speed with passing time, so that even an unskilled user can easily guess the time required to reach his desired channel to thereby get it in a short time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.