Wireless radio modem with minimal interdevice RF interference
US5917854A · kind A · utility
42Cited by
19References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless radio modem for incorporation into a host system includes radio frequency modulation/demodulation circuitry employing electronic device elements that operate in a frequency range that minimize the RF interference between the radio modem and the host system. Radio modem power conservation is further maximized by 1) simplifying signal modulation processing by use of a single sideband suppressed carrier waveform transition table, thereby reducing processing requirements; and 2) incorporating a "sleep mode" feature in which all non-timer circuitry is powered-down when not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.