Universal remote control unit with model identification capability
US4703359A · kind A · utility
270Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Nov 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/202
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A remote control unit responds to activation of a "identify" button by transmitting a sequence of command signals, each of the same command in a different format. Since the appliance to be controlled is turned on, it responds in a predetermined way (e.g. a channel change) when it receives the properly formatted command. The user then terminates the learn mode and a pointer denoting the address of the last transmitted command, i.e. the properly formatted command, is stored in the unit and used as part of the address for reading data for subsequent user-selected commands out of memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.