Invention Grant
- Patent Title: Filter and filtering method thereof
- Patent Title (中): 滤波滤波方法
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Application No.: US12701620Application Date: 2010-02-08
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Publication No.: US08179761B2Publication Date: 2012-05-15
- Inventor: Shih-Hsien Liu , Zhieng-Chung Chen
- Applicant: Shih-Hsien Liu , Zhieng-Chung Chen
- Applicant Address: TW Hsinchu
- Assignee: Sunplus Technology Co., Ltd.
- Current Assignee: Sunplus Technology Co., Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Jianq Chyun IP Office
- Priority: TW98140642A 20091127
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A filter, including a direct-current (DC) tracking unit, a subtracter and a control unit, is provided. The DC tracking unit extracts a DC component of a radio-frequency (RF) signal and accordingly generates a level signal. The subtracter subtracts the level signal from the RF signal to generate a RF coupling signal. The control unit determines whether to transmit a setting signal to the DC tracking unit according to the level variation of the RF coupling signal, so as to adjust a characteristic parameter of the DC tracking unit.
Public/Granted literature
- US20110128834A1 FILTER AND FILTERING METHOD THEREOF Public/Granted day:2011-06-02
Information query
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