发明名称 |
Frequency shift keying modulating circuit. |
摘要 |
<p>A frequency shift keying modulating circuit produces a first frequency according to a surface acoustic wave transducers (21) natural resonant frequency and a second frequency according to the surface acoustic wave transducer in combination with a reactive element (26). The frequency selected is determined by the state of a PIN switching diode (27) in parallel with the reactive element (26).</p> |
申请公布号 |
EP0626772(A2) |
申请公布日期 |
1994.11.30 |
申请号 |
EP19940201210 |
申请日期 |
1994.05.02 |
申请人 |
DELCO ELECTRONICS CORPORATION |
发明人 |
ANDERSON, FRED JAY |
分类号 |
B60R25/00;G07C9/00;H04L27/12;(IPC1-7):H04L27/12 |
主分类号 |
B60R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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