Invention Grant
- Patent Title: Method and system for mitigating the effects of pulling in multiple phase locked loops in multi-standard systems
- Patent Title (中): 用于减轻多标准系统中拉动多个锁相环的影响的方法和系统
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Application No.: US11618716Application Date: 2006-12-29
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Publication No.: US07869781B2Publication Date: 2011-01-11
- Inventor: Qiang Li , Razieh Roufoogaran , Arya Behzad , Dandan Li , Hung-Ming Chien
- Applicant: Qiang Li , Razieh Roufoogaran , Arya Behzad , Dandan Li , Hung-Ming Chien
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H04B1/06
- IPC: H04B1/06

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.
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