发明授权
- 专利标题： Digital radio system capable of high-speed frequency changing at low power consumption
- 专利标题（中）： 数字无线电系统能够以低功耗高速频率变化
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申请号： US517196申请日： 1995-08-21
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公开(公告)号： US5603097A公开(公告)日： 1997-02-11
- 发明人: Hideto Kanou
- 申请人： Hideto Kanou
- 申请人地址： JPX Kyoto
- 专利权人： Kyocera Corporation
- 当前专利权人： Kyocera Corporation
- 当前专利权人地址： JPX Kyoto
- 优先权： JPX5-020528 19930113
- 主分类号： H04B1/26
- IPC分类号： H04B1/26 ; H03D7/16 ; H03J5/02 ; H03L7/185 ; H04B1/40 ; H04L27/18 ; H04B1/50
摘要：
The output frequency of a PLL frequency synthesizer and the output frequency of a fixed oscillator are mixed together in a mixer to produce sum and difference frequencies. The sum frequency is used as a local frequency, and the difference frequency is fed back to the PLL frequency synthesizer. In addition, the output frequency of the fixed oscillator is divided in a predetermined ratio to use it as a local frequency for the second or other subsequent frequency converting stage on the receiver or transmitter side.
公开/授权文献
- US4521062A Electrical connector with optional grounding element 公开/授权日：1985-06-04
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