Systems, methods, and apparatus for frequency conversion

Details Systems, methods, and apparatus for frequency conversion Systems, methods, and apparatus for frequency conversion

2006-09-13

2010-11-02

Vo, Nguyen (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S324000

Reexamination Certificate

active

07826816

ABSTRACT:
A method according to one embodiment includes using a quadrature set of local oscillator signals having duty cycles of substantially less than fifty percent to perform a mixing operation on a radio-frequency current signal. Other embodiments include using a quadrature set of local oscillator signals having duty cycles of less than twenty-five percent.

REFERENCES:
patent: 5945857 (1999-08-01), Havens
patent: 6198347 (2001-03-01), Sander
patent: 6891420 (2005-05-01), Martin
patent: 6933766 (2005-08-01), Khlat
patent: 2002/0181619 (2002-12-01), McCune
patent: 2002/0183033 (2002-12-01), Gu
patent: 2005/0215215 (2005-09-01), Shemesh
patent: 2005/0226349 (2005-10-01), Manku
patent: 2005/0239430 (2005-10-01), Shah
patent: 2006/0199562 (2006-09-01), Taylor
patent: 2007/0105522 (2007-05-01), Muhammad et al.
patent: 2007/0126500 (2007-06-01), Mattisson et al.
patent: 102004059117 (2009-06-01), None
patent: 0276130 (1988-07-01), None
patent: 1615336 (2006-01-01), None
patent: WO2006002945 (2006-01-01), None
Christensen, C. A low power, low data rate integrated 433 MHz RF transceiver in CMOS. 2003 IEEE UGIM Symp. Digest, Boise, ID, Jul. 2003, pp. 70-73.
Goldfarb, M. et al. Even harmonic double-balanced active mixer for use in direct conversion receivers. IEEE J. Solid-State Circ., v.38 n. 10, Oct. 2003, pp. 1762-1766.
Petrov, A. System approach for low1/f noise, high IP2 dynamic range CMOS mixer design. Proc. 15thBiennial IEEE UGI Microelectronics Symp., 2003, pp. 74-77.
Gudem, P. and Larson, L. ECE265B, Mixer, Part 1, UCSD. Last accessed Jun. 30, 2006 at http://ece-classweb.ucsd.edu:16080/winter06/ece265b/ECE265BMixer—Part—1.pdf. 54 pp.
Steyart M S J et al: Low-Voltage Low-Power CMOS-RF Transceiver Design IEEE Transactions on Microwave Theory and Techniques, IEEE Service Center, Piscataway, NJ, US, vol. 50, No. 1, Part 2, Jan. 2002, pp. 281-287, XP001085550.
International Preliminary Report on Patentability—PCT/US07/073129—The International Bureau of WIPO, Geneva Switzerland—Jan. 13, 2009.
Beffa, F. et al., “A 6-5-MW Receiver Front-End for Bluetooth in 0.18-muM CMOS” IEE MTT-S International Microwave Symposium Digest. (IMS 2002). Seattle, WA, Jun. 2-7, 2002, IEE MTT-S International Microwave Symposium, New York NY: IEEE, US, vol.
International Search Report & Written Opinion - PCT/US07/73129, International Search Authority - European Patent Office - Jan. 7, 2008.

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