Television tuner and method of processing a received RF signal

Details Television tuner and method of processing a received RF signal Television tuner and method of processing a received RF signal

2006-10-10

2006-10-10

Vuong, Quochien B. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S180300, C348S731000, C375S376000

Reexamination Certificate

active

07120413

ABSTRACT:
A television (TV) tuner includes a first mixer for mixing a received RF signal with a first local oscillator signal to produce an intermediate frequency signal, a second mixer for mixing the intermediate frequency signal with a second local oscillator signal for producing an in-phase baseband output signal, a third mixer for mixing the intermediate frequency signal with a third local oscillator signal for producing a quadrature-phase baseband output signal, the third local oscillator signal being the second local oscillator signal phase delayed, and a single phase locked loop (PLL) coupled to the first mixer and the second mixer unit for generating the first local oscillator signal and the second local oscillator signal according to a selected channel in the received RF signal.

REFERENCES:
patent: 4320536 (1982-03-01), Dietrich
patent: 4581643 (1986-04-01), Carlson
patent: 5325129 (1994-06-01), Henry et al.
patent: 5517687 (1996-05-01), Niehenke et al.
patent: 5589791 (1996-12-01), Gilbert
patent: 5737035 (1998-04-01), Rotzoll
patent: 5742357 (1998-04-01), Griesbaum
patent: 5802447 (1998-09-01), Miyazaki
patent: 5826182 (1998-10-01), Gilbert
patent: 5847612 (1998-12-01), Birleson
patent: 6028493 (2000-02-01), Olgaard et al.
patent: 6029059 (2000-02-01), Bojer
patent: 6091303 (2000-07-01), Dent
patent: 6122497 (2000-09-01), Gilbert
patent: 6127962 (2000-10-01), Martinson
patent: 6177964 (2001-01-01), Birleson et al.
patent: 6243569 (2001-06-01), Atkinson
patent: 6307894 (2001-10-01), Eidson et al.
patent: 6480236 (2002-11-01), Limberg
patent: 6496229 (2002-12-01), Limberg
patent: 6724440 (2004-04-01), Suan et al.
patent: 6724441 (2004-04-01), Choi
patent: 6725463 (2004-04-01), Birleson
patent: 6888580 (2005-05-01), Dujmenovic
patent: 6995808 (2006-02-01), Kovacic et al.
patent: 6999747 (2006-02-01), Su
patent: 7006162 (2006-02-01), Cowley et al.
patent: 7019598 (2006-03-01), Duncan et al.
patent: 7019790 (2006-03-01), Yamamoto
patent: 2005/0235333 (2005-10-01), Bertonis et al.

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