Radio receiver for selecting appropriate diversity antennas...

Details Radio receiver for selecting appropriate diversity antennas... Radio receiver for selecting appropriate diversity antennas...

2008-07-15

2008-07-15

Le, Lana (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S134000, C455S275000, C455S276100, C455S067130, C455S226100, C455S226400, C455S296000, C455S303000, C455S304000, C455S132000, C455S133000, C375S347000

Reexamination Certificate

active

07400872

ABSTRACT:
In the diversity receiver, the RF switcher switches the received signals to supply them to the RSSI power detector equipped with diversity function. Subsequently, the RSSI power detector with diversity function feeds the RF switcher with an antenna switching signal. According to the determination of antennas at this instance, an IQ start-up signal for starting up the I/Q subsection is produced to make the I/Q subsection operate assuredly in response to a signal intended to receive, without operating the I/Q subsection in response to an erroneous detection of noise during processing therein, thereby eliminating useless operation.

REFERENCES:
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patent: 5507035 (1996-04-01), Bantz et al.
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patent: 6141392 (2000-10-01), Hoshikuki et al.
patent: 6847810 (2005-01-01), Shen et al.
patent: 6925293 (2005-08-01), Lindenmeier et al.
patent: 7043218 (2006-05-01), Ogino
patent: 2004/0203460 (2004-10-01), Hasegawa

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