发明名称 RADIO FREQUENCY TRANSMITTER HAVING SWITCHED MODE POWER SUPPLY
摘要 A hand-held radio frequency transmitter (10) for use in generating a coded radio frequency transmission has a switched mode power supply (12) energizable by a battery (52). A radio frequency oscillator (14) is driven by the switched mode supply. A modulator (146) controls operation of the oscillator which produces a coded radio frequency signal.
申请公布号 CA2194383(A1) 申请公布日期 1996.12.12
申请号 CA19962194383 申请日期 1996.05.30
申请人 CHAMBERLAIN GROUP, INC. (THE) 发明人 FITZGIBBON, JAMES J.
分类号 H04B1/04;H04B1/16;(IPC1-7):H04B1/04;G08C17/02 主分类号 H04B1/04
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