Audio-visual (AV) apparatus and its control method
US7733428B2 · kind B2 · utility
1Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2009 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Apr 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C2201/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, an audio-visual apparatus that has received operation information transmitted using infrared receives a response signal via a radio frequency from a remote controller set to a combination mode transmitting operation information using both infrared and a radio frequency. The remote controller that has received the response signal transmitted from the AV apparatus within a predetermined time is automatically set to a temporary infrared only mode transmitting operation information using infrared only in place of the combination mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.