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1.发明授权Beat frequency generator using two oscillators controlled by a multiresonator crystal 失效使用多个振荡器晶体控制的两个振荡器的BEAT频率发生器
公开(公告)号：US3617923A
公开(公告)日：1971-11-02
申请号：US3617923D
申请日：1969-11-06
Applicant: BELL TELEPHONE LABOR INC
Inventor： PARADYSZ ROBERT E , SMITH WARREN L
CPC classification number: H03B5/323
Abstract: The unique properties of a monolithic crystal filter are turned to account in a low-frequency crystal oscillator system. Each of two different relatively high-frequency signals is generated by a respective crystal controlled oscillator. The oscillators share a common crystal wafer to which each is connected by a respective pair of electrodes. The relatively low beat frequency signal or difference frequency of the oscillators is extracted by a third set of electrodes mounted on the crystal between the electrode pairs connected to the oscillators.
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