Bi-directional remote control unit and method of using the same
US6532592B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 9, 1998 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Nov 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/485
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bi-directional communications link between a television set and a remote control unit assists a viewer in controlling the entertainment system. The television set can signal the remote control unit to confirm instruction signal received from the remote control unit. The television can also transmit electronic program guide information to the remote control unit which is displayed on a display device on the remote control unit. The television can send the remote control unit a listing of available sub-channels within a single digital channel. The listing is displayed on the remote's display device, and the viewer can then choose from among the sub-channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.