公开(公告)号：US5159613A

公开(公告)日：1992-10-27

申请号：US503288

申请日：1990-04-02

申请人： Donovan M. Bakalyar ,  Yong-Sung Paek

发明人： Donovan M. Bakalyar ,  Yong-Sung Paek

IPC分类号： A61B5/05 ,  H03K5/156 ,  H03K7/04

CPC分类号： A61B5/05 ,  H03K5/156 ,  H03K7/04

摘要： An upper and lower side-band generator comprised of a combination of combinational logic circuits. In a preferred embodiment the invention utilizes a substantially square wave sync output associated with carrier and modulator signal generators. A lower side-band signal is generated by synchronizing the transitions of a modulator signal with the transitions of a carrier signal, mixing the synchronized signal with the carrier signal, and filtering the resulting mixed signal. An upper side band signal is generated by synchronizing the carrier and modulator signals, delaying the resulting synchronized signal, and mixing the delayed, synchronized signal and the carrier signal.

摘要翻译： 由组合逻辑电路组合的上下边带发生器。 在优选实施例中，本发明利用与载波和调制器信号发生器相关联的基本上方波同步输出。 通过使调制器信号的转变与载波信号的转变同步，将同步信号与载波信号混合，并对所得到的混合信号进行滤波，产生较低的边带信号。 通过同步载波和调制器信号，延迟所得到的同步信号，以及混合延迟的同步信号和载波信号来产生上边带信号。