Wireless control and pointer system
US6271831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1997 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Apr 3, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0308
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wireless control and pointer system for controlling electronic equipment. The system generally includes a hand held remote control comprising a first infrared signal emitter for use in transmitting a first infrared signal comprising a plurality of signal components each of which is transmitted at a first frequency but out of phase with respect to the other of the plurality of signal components and a receiver comprising an infrared signal sensor adapted to receive the infrared signal, a circuit connected to the infrared signal sensor for generating an orientation signal indicative of the orientation of the remote control as a function of the amplitude of each of the plurality of signal components of the infrared signal, and an interface circuit for transmitting a command signal indicative of the orientation signal to the electronic equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.