Pulse or digital communications – Transceivers – Modems
Patent
1994-11-14
1997-04-08
Bocure, Tesfaldet
Pulse or digital communications
Transceivers
Modems
455 73, H04L 516
Patent
active
056195311
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.
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Carkner Steven
Edmonson Peter
Jarmuszewski Perry
Lazaridis Mihal
Taylor Bryan
Bocure Tesfaldet
Meyer, Esq. Charles B.
Research In Motion Limited
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