Multimode receiver with active blocker suppression

Details Multimode receiver with active blocker suppression Multimode receiver with active blocker suppression

2008-05-02

2011-12-27

Pham, Tuan (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S063100, C455S570000, C455S130000, C379S406010, C379S406050, C370S286000, C370S289000

Reexamination Certificate

active

08086205

ABSTRACT:
Various embodiments of a wireless multimode receiver having an off-chip duplex filter associated with a multimode band, and a blocker cancellation circuit disposed on a semiconductor chip are described in the present disclosure.

REFERENCES:
patent: 6370133 (2002-04-01), Kang et al.
patent: 7773967 (2010-08-01), Smith
patent: 2009/0022246 (2009-01-01), Ando
“A Blocker Filtering Technique for Wireless Receivers”, Hooman Darabi, 2007 IEEE International Solid-State Circuits Conference, ISSCC 2007/Session 4/RF Building Blocks/ 4.4, 3 pgs.
“Effective IM2 Estimation for Two-Tone and WCDMA Modulated Blockers in Zero-IF”, Walid Y. Ali-Ahmad, reprinted from the Internet at: www.rfdesign.com, Apr. 2004, 5 pgs.

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