Invention Grant
US08059517B2 Apparatus and method for generating radio frequency ripple zero crossing signal
有权
用于产生射频纹波零交叉信号的装置和方法
- Patent Title: Apparatus and method for generating radio frequency ripple zero crossing signal
- Patent Title (中): 用于产生射频纹波零交叉信号的装置和方法
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Application No.: US12500613Application Date: 2009-07-10
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Publication No.: US08059517B2Publication Date: 2011-11-15
- Inventor: Shih-Hsien Liu , Hsing-Sheng Huang , Sih-Kai Wang
- Applicant: Shih-Hsien Liu , Hsing-Sheng Huang , Sih-Kai Wang
- 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: TW98107354A 20090306
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A method for generating an RFZC signal is provided. The method includes the following steps. First, an RF signal is received and the received RF signal is converted into an RF-ENVLP signal. Next, a DC offset of the RF signal is calibrated according to a variation of the RF-ENVLP signal so as to obtain a calibrated RF-ENVLP signal and obtain a gain according to the calibrated RF-ENVLP signal. Then, an RFZC signal is generated according to the calibrated RF-ENVLP signal and the gain.
Public/Granted literature
- US20100226221A1 APPARATUS AND METHOD FOR GENERATING RADIO FREQUENCY RIPPLE ZERO CROSSING SIGNAL Public/Granted day:2010-09-09
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