发明名称 |
HIGH-QUALITY RECEPTION INDICATING CIRCUIT FOR FM RECEIVERS |
摘要 |
The reception of FM broadcast signals having a selected high sound quality is determined according to criteria including a low noise level and the absence of interference. The high quality information is employed to terminate a scan tuning operation or to activate an ultrasonic noise filter to improve listening quality of the FM audio output. The absence of noise and interference is determined by examining a particular frequency range from the FM field intensity line generated by an intermediate frequency circuit. 4446L
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申请公布号 |
CA2026811(A1) |
申请公布日期 |
1991.05.31 |
申请号 |
CA19902026811 |
申请日期 |
1990.10.03 |
申请人 |
FORD MOTOR COMPANY OF CANADA, LIMITED |
发明人 |
KENNEDY, JOHN F.;KUO, YAO H. |
分类号 |
H04B1/10;H04B1/16;(IPC1-7):H04B1/16 |
主分类号 |
H04B1/10 |
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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