Method and apparatus to facilitate using multiple carrier frequencies
US8331928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2008 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jan 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless radio frequency transmitter (400), upon detecting (101) an end user assertion of an end user interface and in automatic response thereto, uses a first rolling carrier frequency to transmit (102) a message. Upon then determining (104) that the end user is continuing to assert this end user interface, this transmitter then re-transmits (105) that message using a predetermined fixed carrier frequency. By one approach, the first rolling carrier frequency is selected from amongst a pool of candidate carrier frequencies using a carrier frequency calculation formula. By another approach, this carrier frequency is selected from one or more tables that comprise a plurality of different carrier frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.