Wireless communication system

Details Wireless communication system Wireless communication system

2009-02-24

2011-11-01

Nguyen, Hai L (Department: 2816)

Telecommunications

Transmitter and receiver at same station

C455S078000

Reexamination Certificate

active

08050633

ABSTRACT:
A wireless communication system is disclosed. The present invention mainly includes a transceiver, a first filter unit, a second filter unit, and a first amplifying unit, wherein the first filter unit is a harmonic oscillation circuit having an inductive component and a capacitive component serially coupled to each other, and the harmonic oscillation circuit as well as the circuit of the second filter unit efficiently filter out a local oscillation frequency signal and intermediate frequency signal traveling along with a radio frequency signal, thereby preventing neighboring communication systems from electro-magnetic interference due to radiation of the local oscillation frequency signal and intermediate frequency signal into air via an antenna after being amplified by the first amplifying unit.

REFERENCES:
patent: 6728517 (2004-04-01), Sugar et al.
patent: 7450911 (2008-11-01), Venkatesh
patent: 7471930 (2008-12-01), Okuyama et al.
patent: 7865149 (2011-01-01), Han et al.
patent: 7885609 (2011-02-01), Yu

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