Local oscillator apparatus and method

Details Local oscillator apparatus and method Local oscillator apparatus and method

2007-10-23

2007-10-23

Anderson, Matthew (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S334000, C455S339000, C455S340000, C375S316000, C375S345000

Reexamination Certificate

active

10647588

ABSTRACT:
A direct conversion satellite tuner is fully integrated on a common substrate. The integrated tuner receives an RF signal having a plurality of channels and down-converts a selected channel directly to baseband for further processing. The integrated tuner includes on-chip local oscillator generation, tunable baseband filters, and DC Offset cancellation. The integrated tuner can be implemented in a completely differential I/Q configuration for improved electrical performance. The entire direct conversion satellite tuner can be fabricated on a single semiconductor substrate using standard CMOS processing, with minimal off-chip components. The tuner configuration described herein is not limited to processing TV signals, and can be utilized to down-convert other RF signals to an IF frequency or baseband.

REFERENCES:
patent: 3872329 (1975-03-01), Dodson, III
patent: 4331944 (1982-05-01), Lee
patent: 4354250 (1982-10-01), Lee
patent: 4849661 (1989-07-01), Bazes
patent: 5210504 (1993-05-01), Yagita et al.
patent: 5303258 (1994-04-01), Nakamura
patent: 5493710 (1996-02-01), Takahara et al.
patent: 5604501 (1997-02-01), McPartland
patent: 5757921 (1998-05-01), Okanobu et al.
patent: 5819157 (1998-10-01), Ben-Efraim et al.
patent: 5859559 (1999-01-01), Hong et al.
patent: 5884154 (1999-03-01), Sano et al.
patent: 5930696 (1999-07-01), Tzuang et al.
patent: 5942935 (1999-08-01), Okanobu
patent: 5950112 (1999-09-01), Hori et al.
patent: 5991612 (1999-11-01), Saito
patent: 6031878 (2000-02-01), Tomasz et al.
patent: 6037825 (2000-03-01), Kung
patent: 6069510 (2000-05-01), Keeth
patent: 6122497 (2000-09-01), Gilbert
patent: 6150875 (2000-11-01), Tsinker
patent: 6160571 (2000-12-01), Wang
patent: 6166591 (2000-12-01), Schultz et al.
patent: 6218885 (2001-04-01), Ellis
patent: 6246864 (2001-06-01), Koike
patent: 6347126 (2002-02-01), Nagayasu et al.
patent: 6512801 (2003-01-01), Ninomiya
patent: 6529100 (2003-03-01), Okanobu
patent: 6529721 (2003-03-01), Tiller
patent: 6563383 (2003-05-01), Otaka et al.
patent: 6564045 (2003-05-01), Fransis
patent: 6583661 (2003-06-01), Tanji et al.
patent: 6631257 (2003-10-01), White et al.
patent: 6693980 (2004-02-01), Linder et al.
patent: 6720839 (2004-04-01), Torre et al.
patent: 6731712 (2004-05-01), Lindstrom et al.
patent: 6801585 (2004-10-01), Nguyen et al.
patent: 6807406 (2004-10-01), Razavi et al.
patent: 2002/0039052 (2002-04-01), Straub et al.
patent: 2002/0042255 (2002-04-01), Prentice
patent: 2002/0120937 (2002-08-01), Chang
patent: 2002/0190783 (2002-12-01), Duncan et al.
patent: 2003/0045263 (2003-03-01), Wakayama et al.
patent: 2003/0143960 (2003-07-01), Yamawaki et al.
patent: 199 24 039 (1999-12-01), None
patent: 2 339 351 (2000-01-01), None
patent: WO 00/13306 (2000-03-01), None
International Search Report for Appln. No. PCT/US01/44321, issued Oct. 30, 2002, 7 pages.
Written Opinion from PCT Application No. PCT/US01/44321, filed Nov. 29, 2001, 6 pages (mailing date of written opinion—Jul. 23, 2003).
Sedra et al., “MicroElectronic Circuits,” CBS College Publishing, New York, New York, 1987, pp. 96-100 and 805.

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