Pulse or digital communications – Transceivers – Modems
Patent
1997-08-20
1999-06-29
Bogure, Tesfaldet
Pulse or digital communications
Transceivers
Modems
455343, H03A 138
Patent
active
059178540
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
Bogure Tesfaldet
Meyer, Esq. Charles B.
Research In Motion Limited
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