Remote control apparatus
US4322855A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1980 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Jun 18, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J9/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A remote control apparatus having a commander and a receiver. In a wireless remote control system for a television receiver having a channel command device and a responding device, the channel command device includes a channel selecting circuit for selecting one channel command from among a plurality of predetermined channel commands, a command signal generating circuit for generating a channel command signal corresponding to a selected channel command, and a channel command transmitting circuit having a speaker for transmitting the channel command signal; and the responding device includes a channel command receiving circuit having a microphone for receiving the transmitted channel command signal and a channel command discriminating circuit for discriminating the channel command signal and supplying a channel selecting signal corresponding to the discriminated channel command signal to control a tuning circuit of the television receiver. Further, there is provided in the responding device, a return signal generating circuit for producing a return signal corresponding to the channel command indicated by the channel selecting signal and a return signal transmitting circuit having a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.