公开(公告)号：US06727764B2

公开(公告)日：2004-04-27

申请号：US10096147

申请日：2002-03-08

Applicant: Tajinder Manku ,  Stephen Arnold Devison ,  Christopher E. Snyder

Inventor： Tajinder Manku ,  Stephen Arnold Devison ,  Christopher E. Snyder

IPC: H03B100

CPC classification number: H03L7/0995 ,  H03J2200/17 ,  H03L7/18

Abstract: The invention provides a system and method of generating a number of inputs to the mixer elements in a direct conversion (homodyne) receiver configuration using Virtual Local Oscillator (VLO) techniques. These generated inputs meet the requirement that they must have a fixed and stable phase-relationship, as well as being correctly related in terms of their power spectra relative to the operating radio (RF), intermediate (IF), and baseband frequencies of the system, and that when applied to the mixer elements they permit the mixer elements to create internally the effect of applying the Local Oscillator signal at a suitable frequency.

Abstract translation: 本发明提供了一种使用虚拟本地振荡器（VLO）技术在直接转换（零差）接收器配置中向混频器元件生成多个输入的系统和方法。 这些产生的输入满足了它们必须具有固定和稳定的相位关系的要求，并且在功率谱相对于系统的操作无线电（RF），中间（IF）和基带频率方面正确地相关 ，并且当应用到混频器元件时，它们允许混频器元件在内部产生以适当频率施加本地振荡器信号的效果。