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公开(公告)号：US08179761B2
公开(公告)日：2012-05-15
申请号：US12701620
申请日：2010-02-08
Applicant: Shih-Hsien Liu , Zhieng-Chung Chen
Inventor： Shih-Hsien Liu , Zhieng-Chung Chen
IPC: G11B7/00
CPC classification number: G11B20/10509 , G11B20/10203 , G11B2220/2537
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.
Abstract translation: 提供了包括直流（DC）跟踪单元，减法器和控制单元的滤波器。 DC跟踪单元提取射频（RF）信号的DC分量，从而生成电平信号。 减法器从RF信号中减去电平信号以产生RF耦合信号。 控制单元根据RF耦合信号的电平变化来确定是否向DC跟踪单元发送设置信号，以便调整DC跟踪单元的特性参数。
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公开(公告)号：US20110128834A1
公开(公告)日：2011-06-02
申请号：US12701620
申请日：2010-02-08
Applicant: Shih-Hsien Liu , Zhieng-Chung Chen
Inventor： Shih-Hsien Liu , Zhieng-Chung Chen
CPC classification number: G11B20/10509 , G11B20/10203 , G11B2220/2537
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.
Abstract translation: 提供了包括直流（DC）跟踪单元，减法器和控制单元的滤波器。 DC跟踪单元提取射频（RF）信号的DC分量，从而生成电平信号。 减法器从RF信号中减去电平信号以产生RF耦合信号。 控制单元根据RF耦合信号的电平变化来确定是否向DC跟踪单元发送设置信号，以便调整DC跟踪单元的特性参数。
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公开(公告)号：US08462602B2
公开(公告)日：2013-06-11
申请号：US13040272
申请日：2011-03-04
Applicant: Shih-Hsien Liu , Zhieng-Chung Chen
Inventor： Shih-Hsien Liu , Zhieng-Chung Chen
CPC classification number: G11B20/10055 , G11B20/1025 , G11B20/10277 , G11B20/10314 , G11B2220/2537
Abstract: A data recovery device including an analog to digital converter (ADC), a filtering-equalizing unit, a zero crossing detector, a data phase locked loop, a data mapping unit and an estimation unit is provided. The ADC converts a radio frequency signal to a plurality of sampling data points. The sampling data points are converted to a plurality of retiming data points and a clock signal by the filtering-equalizing unit, the zero crossing detector and the data phase locked loop. The data mapping unit selects a plurality of maximum data points and minimum data points from the returning data points, and determines whether to map the maximum data points and the minimum data points to other levels for partially reconstructing the retiming data points. The estimation unit recovers the reconstructed retiming data points to a modulation signal.
Abstract translation: 提供了包括模数转换器（ADC），滤波均衡单元，过零检测器，数据锁相环，数据映射单元和估计单元的数据恢复装置。 ADC将射频信号转换成多个采样数据点。 采样数据点由滤波均衡单元，过零检测器和数据锁相环路转换成多个重定时数据点和时钟信号。 数据映射单元从返回数据点选择多个最大数据点和最小数据点，并且确定是否将最大数据点和最小数据点映射到用于部分重建重定时数据点的其他级别。 估计单元将重建的重定时数据点恢复为调制信号。
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公开(公告)号：US20120075976A1
公开(公告)日：2012-03-29
申请号：US13040272
申请日：2011-03-04
Applicant: Shih-Hsien Liu , Zhieng-Chung Chen
Inventor： Shih-Hsien Liu , Zhieng-Chung Chen
CPC classification number: G11B20/10055 , G11B20/1025 , G11B20/10277 , G11B20/10314 , G11B2220/2537
Abstract: A data recovery device including an analog to digital converter (ADC), a filtering-equalizing unit, a zero crossing detector, a data phase locked loop, a data mapping unit and an estimation unit is provided. The ADC converts a radio frequency signal to a plurality of sampling data points. The sampling data points are converted to a plurality of retiming data points and a clock signal by the filtering-equalizing unit, the zero crossing detector and the data phase locked loop. The data mapping unit selects a plurality of maximum data points and minimum data points from the returning data points, and determines whether to map the maximum data points and the minimum data points to other levels for partially reconstructing the retiming data points. The estimation unit recovers the reconstructed retiming data points to a modulation signal.
Abstract translation: 提供了包括模数转换器（ADC），滤波均衡单元，过零检测器，数据锁相环，数据映射单元和估计单元的数据恢复装置。 ADC将射频信号转换成多个采样数据点。 采样数据点由滤波均衡单元，过零检测器和数据锁相环路转换成多个重定时数据点和时钟信号。 数据映射单元从返回数据点选择多个最大数据点和最小数据点，并且确定是否将最大数据点和最小数据点映射到用于部分重建重定时数据点的其他级别。 估计单元将重建的重定时数据点恢复为调制信号。
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