Method and apparatus for determining the receptivity of...

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency

Reexamination Certificate

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Reexamination Certificate

active

07457596

ABSTRACT:
A method and apparatus for determining the receptivity of radio signals at any given receiving site in an area covered by at least one transmitter by comparing data stored and continuously updated in a receiver against data transmitted, and identifying and selecting from all the transmitted radio signals a preferred radio signal.

REFERENCES:
patent: 5086511 (1992-02-01), Kobayashi et al.
patent: 5134719 (1992-07-01), Mankovitz
patent: 5278988 (1994-01-01), Dejean et al.
patent: 5307513 (1994-04-01), Harada
patent: 5819166 (1998-10-01), Kimura et al.
patent: 30 40 465 (1982-06-01), None
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patent: 01-130633 (1989-05-01), None
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patent: 01-276829 (1989-11-01), None
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patent: 61-81460 (1994-06-01), None
patent: 61-94437 (1994-07-01), None
Japanese Office Action in JP Application Hei-7-519,219 which parallels DE 3810179.

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