公开(公告)号：US20020172313A1

公开(公告)日：2002-11-21

申请号：US09860841

申请日：2001-05-17

Applicant: UT-Battelle, L.L.C.

Inventor： Stephen F. Smith ,  James A. Moore

IPC: H03D003/24

CPC classification number: H03D3/248

Abstract: Systems and methods are described for carrier-frequency synchronization for improved AM and TV broadcast reception. A method includes synchronizing a carrier frequency of a broadcast signal with a remote reference frequency. An apparatus includes a reference signal receiver; a phase comparator coupled to the reference signal receiver; a voltage controlled oscillator coupled to the phase comparator; and a radio frequency output coupled to the voltage controlled oscillator.

Abstract translation: 描述了用于载波频率同步以改善AM和TV广播接收的系统和方法。 一种方法包括使广播信号的载波频率与远程参考频率同步。 一种装置包括参考信号接收器; 耦合到参考信号接收器的相位比较器; 耦合到相位比较器的压控振荡器; 以及耦合到压控振荡器的射频输出。