Invention Grant
- Patent Title: Filter-tracking and control method
- Patent Title (中): 过滤跟踪和控制方法
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Application No.: US12438542Application Date: 2007-08-22
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Publication No.: US08436693B2Publication Date: 2013-05-07
- Inventor: Bassem Fahs , Patrick A. Y. Ozenne
- Applicant: Bassem Fahs , Patrick A. Y. Ozenne
- Applicant Address: CH Geneva
- Assignee: ST-Ericsson SA
- Current Assignee: ST-Ericsson SA
- Current Assignee Address: CH Geneva
- Agency: Hogan Lovells US LLP
- Agent William J. Kubida; Peter J. Meza
- Priority: EP06300886 20060823
- International Application: PCT/IB2007/053357 WO 20070822
- International Announcement: WO2008/023340 WO 20080228
- Main IPC: H04B1/18
- IPC: H04B1/18 ; H04B1/10
Abstract:
A method to track and control the resonance frequency of a band-pass filter provides a solution for the sensitivity limitations against temperature and process variations. A phase sensing module obtains the phase difference between the input and output and a negative feed-back control architecture can be used to tune the filter's resonance over the input RF frequency.
Public/Granted literature
- US20100127791A1 FILTER-TRACKING AND CONTROL METHOD Public/Granted day:2010-05-27
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