Method and system for mitigating the effects of pulling in...

Details Method and system for mitigating the effects of pulling in... Method and system for mitigating the effects of pulling in...

2011-01-11

2011-01-11

Phu, Sanh D (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S552100, C455S285000, C455S553100, C455S207000, C455S209000

Reexamination Certificate

active

07869781

ABSTRACT:
Certain aspects of a method and system for mitigating effects of pulling in multiple phase locked loops in multi-standard systems may include selecting an input frequency range of operation at a voltage controlled oscillator based on a particular wireless band of operation in a system that handles a first wireless communication protocol and a second wireless communication protocol. An image rejection mixer may be enabled to generate an output signal for the particular wireless band of operation based on mixing a plurality of received signals within a selected frequency range. An in-phase (I) component and a quadrature (Q) component of the generated output signal may be generated by utilizing a RC-CR quadrature network.

REFERENCES:
patent: 6766178 (2004-07-01), Damgaard et al.
patent: 6960962 (2005-11-01), Peterzell et al.
patent: 7398071 (2008-07-01), Jensen
patent: 7403750 (2008-07-01), Rosnell et al.
patent: 7421250 (2008-09-01), Shi
patent: 7561881 (2009-07-01), Feher
patent: 2002/0173337 (2002-11-01), Hajimiri et al.

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