Portable telephone handset with remote control
US5138649A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1990 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Nov 16, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/202
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A remote control for one or more appliances and a telephone handset are combined into a single unit. A common keypad is used for both remote control and telephone functions. An appliance control signal is generated in response to the actuation of at least one of the keypad keys. The appliance control signal is transmitted via an infrared communication link. A telephone control signal is generated in response to the actuation of at least one of the keypad keys, and transmitted via an infrared or radio frequency communication link. Telephone audio signals from a microphone and to an earphone are communicated via a radio frequency communication link. The remote control/telephone handset is particularly advantageous for use in combination with a cable television converter/descrambler or satellite television receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.