Wireless radio modem with minimal inter-device RF interference
US5764693A · kind A · utility
119Cited by
17References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jun 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless radio modem that may be incorporated into a host system or connected through a PCMCIA or similar port to a host system includes radio frequency modulation/demodulation circuitry employing electronic device elements that operate in a frequency range that minimizes the RF interference between the radio modem and the host system. Radio modem power conservation is maximized by 1) simplifying signal modulation processing by use of a two-point 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.