WIRELESS RADIO MODEM WITH MINIMAL INTERDEVICE RF INTERFERENCE
摘要
<p>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.</p>
申请公布号
CA2205183(A1)
申请公布日期
1996.05.23
申请号
CA19952205183
申请日期
1995.11.14
申请人
RESEARCH IN MOTION LIMITED
发明人
TAYLOR, BRYAN;CARKNER, STEVEN;LITTLE, HERB A.;WANDEL, MATTHIAS;ZHU, LIZHONG;JARMUSZEWSKI, PERRY;EDMONSON, PETER;LAZARIDIS, MIHAL