公开(公告)号：US20020051091A1

公开(公告)日：2002-05-02

申请号：US09859731

申请日：2001-05-17

Applicant: STMicroelectronics S.A.

Inventor： Sebastien Dedieu ,  Frederic Paillardet ,  Isabelle Telliez

IPC: H04L027/20 ,  H04N005/38

CPC classification number: H03H11/22 ,  H03B27/00 ,  H03D7/125 ,  H03L7/0812 ,  H03L7/087

Abstract: At least a first base signal and a second base signal are mutually in quadrature and both are capable of mutually exhibiting a quadrature error. These signals are used to formulate two pairs of delayed signals that includes a first delayed signal that is delayed with respect to the first base signal, a second signal delayed in phase opposition with respect to the first delayed signal, a third signal delayed with respect to the second base signal, and a fourth delayed signal in phase opposition with respect to the third delayed signal. The value of each of the delays is continuously adjusted using two differential signals arising from a direct or an indirect cross-mixing of the two pairs of delayed signals to obtain the four delayed signals virtually in quadrature.

Abstract translation: 至少第一基本信号和第二基本信号相互正交，并且两者都能够相互呈现正交误差。 这些信号用于制定两对延迟信号，这两对延迟信号包括相对于第一基本信号延迟的第一延迟信号，相对于第一延迟信号相位相对延迟的第二信号，相对于第一延迟信号延迟的第三信号 第二基本信号和相对于第三延迟信号相位相反的第四延迟信号。 使用由两对延迟信号的直接或间接交叉混合产生的两个差分信号来连续地调整每个延迟的值，以获得虚拟地正交的四个延迟信号。