Antenna diversity reception system for eliminating reception interferences
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United States of America Patent
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-
Jun 21, 1988
Grant Date -
N/A
app pub date -
May 8, 1986
filing date -
May 13, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An antenna diversity system for the mobile reception of frequency-modulated oscillations having a receiver, antennae and a diversity processor. An optimum system according to the invention includes an FM tuner with intermediate frequency part (2) and at least two antennae, while the diversity processor (3) receives an intermediate frequency signal or high-frequency signal, which corresponds to a given linear combination derived from the antenna signals. The diversity processor (3) further includes an FM demodulator (32) with a succeeding frequency sweep threshold detector (31) and a device by which, in dependence upon the occurrence of an interference-dependent frequency sweep pulse exceeding the frequency sweep threshold of the frequency sweep threshold detector (31) in the intermediate frequency of high-frequency signal, another linear combination derived from the antenna signals is supplied to the input side of the tuner with intermediate frequency part (2).
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