公开(公告)号：US06420940B1

公开(公告)日：2002-07-16

申请号：US09622213

申请日：2000-08-14

Applicant: Brian J Minnis ,  Pascal Philippe

Inventor： Brian J Minnis ,  Pascal Philippe

IPC: H04L2712

CPC classification number: H04L27/2017 ,  H03C3/0975 ,  H03C2200/0058 ,  H03L7/185 ,  H03M3/40 ,  H03M3/404 ,  H03M3/43 ,  H03M3/452

Abstract: A transmitter has a phase modulator and a phase locked loop that has a relatively high powered voltage controlled oscillator. The phase locked loop has a phase sensitive detector for comparing a phase comparison frequency derived from the voltage controlled oscillator output with a phase modulated intermediate frequency carrier derived from the phase modulator. The phase modulator has a reference frequency source, means for deriving four quadrature phase components of the reference frequency produced by the source and phase selection means controlled by complex modulation means for deriving the phase modulated intermediate frequency carrier by random interpolation between the four quadrature components.

Abstract translation: 发射机具有相位调制器和锁相环，其具有相对较高的受电压控制的振荡器。 锁相环具有相敏检测器，用于将从压控振荡器输出导出的相位比较频率与从相位调制器导出的相位调制中频载波进行比较。 相位调制器具有参考频率源，用于导出由复数调制装置控制的源极和相位选择装置产生的参考频率的四个正交相位分量的装置，用于通过四个正交分量之间的随机内插导出相位调制的中频载波。