Invention Grant
US08693598B2 Radio receiver with mitigation modules and mixers with phase compensation
有权
带缓解模块的无线电接收器和具有相位补偿的混频器
- Patent Title: Radio receiver with mitigation modules and mixers with phase compensation
- Patent Title (中): 带缓解模块的无线电接收器和具有相位补偿的混频器
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Application No.: US13204618Application Date: 2011-08-05
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Publication No.: US08693598B2Publication Date: 2014-04-08
- Inventor: Karthik Subburaj , Jawaharlal Tangudu , Raghu Ganesan , Karthik Ramasubramanian
- Applicant: Karthik Subburaj , Jawaharlal Tangudu , Raghu Ganesan , Karthik Ramasubramanian
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Lawrence J. Bassuk; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H03D1/04
- IPC: H03D1/04

Abstract:
Example embodiments of the systems and methods of dynamic spur mitigation for wireless receivers disclosed herein comprise one or more of a detection module for detecting the presence of a spur and a determination of its frequency, a complex notch filter chain, and a frequency locked loop which ensures that the input spur is notch filtered even if it drifts after detection. When a spur is detected, the frequency of the tone is determined. The spur is then filtered, for example using a phase rotator and a DC separator. The phase rotation is removed in a subsequent stage. The non-DC component from the DC separator is used to track the spur to compensate for any shifting or drifting in the spur.
Public/Granted literature
- US20130034127A1 Systems and Methods of Dynamic Spur Mitigation for Wireless Receivers Public/Granted day:2013-02-07
Information query
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