发明名称 |
GENERATION OF VIRTUAL LOCAL OSCILLATOR INPUTS FOR USE IN DIRECT CONVERSION RADIO SYSTEMS |
摘要 |
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 pow er spectra relative to the operating radio (RF), intermediate (IF), and baseban d 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.
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申请公布号 |
CA2375291(A1) |
申请公布日期 |
2003.09.08 |
申请号 |
CA20022375291 |
申请日期 |
2002.03.08 |
申请人 |
SIRIFIC WIRELESS CORPORATION |
发明人 |
DEVISON, STEPHEN ARNOLD;SNYDER, CHRISTOPHER E.;MANKU, TAJINDER |
分类号 |
H03D7/16;H03L7/099;H03L7/18;(IPC1-7):H04B1/30;H03B25/00;H03B27/00 |
主分类号 |
H03D7/16 |
代理机构 |
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地址 |
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