Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Using radiant energy
Patent
1996-09-23
1998-05-12
Strecker, Gerard R.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Using radiant energy
455 673, 343703, 324538, H04B 1700, G01R 3102
Patent
active
057511489
ABSTRACT:
A method for detecting an electrical connection between an antenna system and a receiver for a motor vehicle, the receiver having an automatic gain control with a variable impedance and a PIN diode connected therebetween, includes the steps of increasing the variable impedance of the automatic gain control, measuring signal strength of a signal received from the antenna system, decreasing the variable impedance of the automatic gain control, measuring the signal strength of the signal receiving from the antenna system, correlating the signal strength to the variable impedance to generate a correlation, and determining whether the antenna system is electrically connected to the receiver based on the correlation of the signal strength to the variable impedance.
REFERENCES:
patent: 3467867 (1969-09-01), Armes et al.
patent: 3860872 (1975-01-01), Richardson
patent: 4065719 (1977-12-01), Penningroth et al.
patent: 4095172 (1978-06-01), Strand
patent: 4506385 (1985-03-01), Fedde
patent: 5208543 (1993-05-01), Albiniak
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patent: 5475870 (1995-12-01), Weaver
patent: 5487176 (1996-01-01), Yoneyama
Adrian Andrew
Kennedy John F.
Ford Motor Company
May, Esq. Roger L.
Mollon, Esq. Mark L.
Solis Jose M.
Strecker Gerard R.
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