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1. 发明申请

US20110166817A1 METHOD FOR CALIBRATING FREQUENCY OF GM-C FILTER AND DEVICES USING THE METHOD 有权
标题翻译：用于使用该方法校正GM-C滤波器和装置的频率的方法
公开(公告)号：US20110166817A1
公开(公告)日：2011-07-07
申请号：US12984223
申请日：2011-01-04
申请人： Yun-Cheol Han
发明人： Yun-Cheol Han
IPC分类号： G06F19/00 , H03K5/00
CPC分类号： H03H11/1291 , H03H11/0472 , H03H2210/023 , H03H2210/04
摘要： A method of calibrating the frequency of a gm-C filter is provided. The method includes generating, by a frequency calibration circuit, a calibration code capable of tuning a cut-off frequency of the gm-C filter according to a frequency of an oscillation signal that is output from a gm-C oscillator and indicates a process distribution and a reference code, determining, by the frequency calibration circuit, whether the calibration code exists within a range of a reference code, and outputting, by the frequency calibration circuit, the calibration code to the gm-C filter or generating a variable current to simultaneously tune transconductance of the gm-C oscillator and transconductance of the gm-C filter, according to a result of the determination.
摘要翻译：提供了一种校准gm-C滤波器频率的方法。该方法包括通过频率校准电路产生能够根据从gm-C振荡器输出的振荡信号的频率来调谐gm-C滤波器的截止频率的校准码，并指示处理分布以及参考码，通过频率校准电路确定校准代码是否存在于参考码的范围内，并且通过频率校准电路将校准码输出到gm-C滤波器或产生可变电流根据测定结果同时调节gm-C振荡器的跨导和gm-C滤波器的跨导。

2. 发明申请

US20090072896A1 Equalizer Filters Including a Low-Pass Filter Unit and an Equalizer Having a Group Delay Control Unit and Related Methods 失效
标题翻译：包含低通滤波器单元和具有组延迟控制单元的均衡器的均衡器滤波器及相关方法
公开(公告)号：US20090072896A1
公开(公告)日：2009-03-19
申请号：US12201052
申请日：2008-08-29
申请人： Yun-Cheol Han
发明人： Yun-Cheol Han
IPC分类号： H04B3/14
CPC分类号： H04B3/144
摘要： Provided is a filter used for an equalizer, the filter including: a first low-pass filter unit receives an input signal and performs low frequency band filtering on the input signal; and an equalization unit that receives an output signal from the first low-pass filter unit. The equalization unit may comprise a plurality of serially connected biquad low-pass filter units, and may control a value of a capacitor that is used to control a group delay value that is generated during equalization. Thus, the filter can compensate for group delay without including a separate all pass filter, thereby reducing surface area and power consumption.
摘要翻译：提供了一种用于均衡器的滤波器，滤波器包括：第一低通滤波器单元接收输入信号并对输入信号执行低频带滤波; 以及均衡单元，其接收来自第一低通滤波器单元的输出信号。均衡单元可以包括多个串联连接的双二阶低通滤波器单元，并且可以控制用于控制在均衡期间产生的群延迟值的电容器的值。因此，滤波器可以补偿组延迟，而不包括单独的全通滤波器，从而减少表面积和功耗。

3. 发明申请

US20050174189A1 Equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay in the equalizer 有权
标题翻译：用于均衡器的均衡器，组延迟补偿电路和补偿均衡器中群组延迟的方法
公开(公告)号：US20050174189A1
公开(公告)日：2005-08-11
申请号：US11043075
申请日：2005-01-27
申请人： Woo-Kang Jin , Yun-Cheol Han
发明人： Woo-Kang Jin , Yun-Cheol Han
IPC分类号： H03B1/00 , H03G5/16 , H03H5/00
CPC分类号： H03G5/165
摘要： An equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay may improve group delay characteristics in the equalizer. The equalizer circuit may include a first low pass filter configured to filter a received input signal to output a filtered input signal, and a gain control circuit connected to an output terminal of the first low pass filter, and configured to modulate a gain of a transfer function for the equalizer. The equalizer may include a group delay compensation circuit connected to the output terminal of the first low pass filter and configured to compensate for a group delay of the input signal, and a second low pass filter connected to the output terminal of the first low pass filter.
摘要翻译：用于均衡器的均衡器，组延迟补偿电路和补偿组延迟的方法可以改善均衡器中的组延迟特性。均衡器电路可以包括第一低通滤波器，其被配置为滤波接收的输入信号以输出经滤波的输入信号;以及增益控制电路，连接到第一低通滤波器的输出端，并且被配置为调制转移的增益功能为均衡器。均衡器可以包括连接到第一低通滤波器的输出端并被配置为补偿输入信号的组延迟的组延迟补偿电路，以及连接到第一低通滤波器的输出端的第二低通滤波器。

4. 发明授权

US08762094B2 Method for calibrating frequency of gm-C filter and devices using the method 有权
标题翻译：使用该方法校准gm-C滤波器和器件的频率的方法
公开(公告)号：US08762094B2
公开(公告)日：2014-06-24
申请号：US12984223
申请日：2011-01-04
申请人： Yun-Cheol Han
发明人： Yun-Cheol Han
IPC分类号： G06F19/00 , H03H11/12
CPC分类号： H03H11/1291 , H03H11/0472 , H03H2210/023 , H03H2210/04
摘要： A method of calibrating the frequency of a gm-C filter is provided. The method includes generating, by a frequency calibration circuit, a calibration code capable of tuning a cut-off frequency of the gm-C filter according to a frequency of an oscillation signal that is output from a gm-C oscillator and indicates a process distribution and a reference code, determining, by the frequency calibration circuit, whether the calibration code exists within a range of a reference code, and outputting, by the frequency calibration circuit, the calibration code to the gm-C filter or generating a variable current to simultaneously tune transconductance of the gm-C oscillator and transconductance of the gm-C filter, according to a result of the determination.
摘要翻译：提供了一种校准gm-C滤波器频率的方法。该方法包括通过频率校准电路产生能够根据从gm-C振荡器输出的振荡信号的频率来调谐gm-C滤波器的截止频率的校准码，并指示处理分布以及参考码，通过频率校准电路确定校准代码是否存在于参考码的范围内，并且通过频率校准电路将校准码输出到gm-C滤波器或产生可变电流根据测定结果同时调节gm-C振荡器的跨导和gm-C滤波器的跨导。

5. 发明授权

US07844651B2 Equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay in the equalizer 有权
标题翻译：用于均衡器的均衡器，组延迟补偿电路和补偿均衡器中群组延迟的方法
公开(公告)号：US07844651B2
公开(公告)日：2010-11-30
申请号：US11043075
申请日：2005-01-27
申请人： Woo-Kang Jin , Yun-Cheol Han
发明人： Woo-Kang Jin , Yun-Cheol Han
IPC分类号： G06F17/10 , G06F7/02
CPC分类号： H03G5/165
摘要： An equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay may improve group delay characteristics in the equalizer. The equalizer circuit may include a first low pass filter configured to filter a received input signal to output a filtered input signal, and a gain control circuit connected to an output terminal of the first low pass filter, and configured to modulate a gain of a transfer function for the equalizer. The equalizer may include a group delay compensation circuit connected to the output terminal of the first low pass filter and configured to compensate for a group delay of the input signal, and a second low pass filter connected to the output terminal of the first low pass filter.
摘要翻译：用于均衡器的均衡器，组延迟补偿电路和补偿组延迟的方法可以改善均衡器中的组延迟特性。均衡器电路可以包括第一低通滤波器，其被配置为滤波接收的输入信号以输出经滤波的输入信号;以及增益控制电路，连接到第一低通滤波器的输出端，并且被配置为调制转移的增益功能为均衡器。均衡器可以包括连接到第一低通滤波器的输出端并被配置为补偿输入信号的组延迟的组延迟补偿电路，以及连接到第一低通滤波器的输出端的第二低通滤波器。

6. 发明授权

US09135792B2 System and method generating motor driving signal and method controlling vibration 有权
标题翻译：系统和方法生成电机驱动信号和方法控制振动
公开(公告)号：US09135792B2
公开(公告)日：2015-09-15
申请号：US13891606
申请日：2013-05-10
申请人： Yun-Cheol Han , Ji-Hyun Kim
发明人： Yun-Cheol Han , Ji-Hyun Kim
IPC分类号： H04B3/36 , G08B6/00 , B06B1/02 , B06B1/04
CPC分类号： G08B6/00 , B06B1/0215 , B06B1/045 , B06B2201/70
摘要： A system and method that generate a vibration motor driving signal includes; a first control unit that receives a first input signal and gain-adjusts the first input signal in response to a reference voltage to generate a first output signal, and a second control unit that receives the first output signal and gain-adjusts the first output signal in response to the reference voltage to generate a second output signal, wherein the second output signal is applied to a vibration motor as the vibration control signal.
摘要翻译：产生振动马达驱动信号的系统和方法包括：第一控制单元，其接收第一输入信号，并响应于参考电压增益调节第一输入信号以产生第一输出信号;以及第二控制单元，其接收第一输出信号并增益调整第一输出信号响应于所述参考电压以产生第二输出信号，其中所述第二输出信号作为所述振动控制信号施加到振动电动机。

7. 发明授权

US07733166B2 Equalizer filters including a low-pass filter unit and an equalizer having a group delay control unit and related methods 失效
标题翻译：均衡器滤波器包括低通滤波器单元和具有组延迟控制单元的均衡器和相关方法
公开(公告)号：US07733166B2
公开(公告)日：2010-06-08
申请号：US12201052
申请日：2008-08-29
申请人： Yun-Cheol Han
发明人： Yun-Cheol Han
IPC分类号： H03B1/00
CPC分类号： H04B3/144
摘要： Provided is a filter used for an equalizer, the filter including: a first low-pass filter unit receives an input signal and performs low frequency band filtering on the input signal; and an equalization unit that receives an output signal from the first low-pass filter unit. The equalization unit may comprise a plurality of serially connected biquad low-pass filter units, and may control a value of a capacitor that is used to control a group delay value that is generated during equalization. Thus, the filter can compensate for group delay without including a separate all pass filter, thereby reducing surface area and power consumption.
摘要翻译：提供了一种用于均衡器的滤波器，滤波器包括：第一低通滤波器单元接收输入信号并对输入信号执行低频带滤波; 以及均衡单元，其接收来自第一低通滤波器单元的输出信号。均衡单元可以包括多个串联连接的双二阶低通滤波器单元，并且可以控制用于控制在均衡期间产生的群延迟值的电容器的值。因此，滤波器可以补偿组延迟，而不包括单独的全通滤波器，从而减少表面积和功耗。

8. 发明授权

US06917224B2 Frequency synthesizer and frequency synthesizing method 有权
标题翻译：频率合成器和频率合成方法
公开(公告)号：US06917224B2
公开(公告)日：2005-07-12
申请号：US10762518
申请日：2004-01-23
申请人： Yun-Cheol Han
发明人： Yun-Cheol Han
IPC分类号： H03L7/16 , H03K3/03 , H03K5/156 , H03B21/00
CPC分类号： H03K3/0322 , H03K5/1565
摘要： Provided are a frequency synthesizer and a frequency synthesizing method. The frequency synthesizer includes a ring oscillator, duty buffers, half adders, and a switch. The ring oscillator receives a pair of input signals and generates a pair of oscillating signals. The duty buffers receive the pair of oscillating signals of the ring oscillator and generates output signals with predetermined duty cycles. The half adders receive output signals of the duty buffers and generate an output signal as a result of an Exclusive-OR operation on the output signals of the duty buffers and an output signal as a result of an AND operation on the output signals of the duty buffers. The switch selects one of the oscillating signals of the ring oscillator, the output signals as results of the Exclusive-OR operation, and the output signals as results of the AND operation. By using the frequency synthesizer, it is possible to select one of an oscillating-frequency output signal of a high-frequency ring oscillator, an output signal of a high-frequency that is two times higher than that of the oscillating frequency of the ring oscillator bock, and an output signal of a frequency that is the same as that of an input signal.
摘要翻译：提供了一种频率合成器和频率合成方法。频率合成器包括环形振荡器，占空比缓冲器，半加法器和开关。环形振荡器接收一对输入信号并产生一对振荡信号。占空比缓冲器接收环形振荡器的一对振荡信号，并以预定的占空比产生输出信号。半加法器接收占空比缓冲器的输出信号，并且作为对占空比缓冲器的输出信号的异或运算的结果产生输出信号，并且作为对占空比的输出信号进行“与”运算的结果的输出信号缓冲区开关选择环形振荡器的振荡信号之一，输出信号作为异或运算的结果，输出信号作为AND运算的结果。通过使用频率合成器，可以选择高频环形振荡器的振荡频率输出信号之一，高频环路振荡器的振荡频率的两倍的输出信号以及与输入信号相同的频率的输出信号。

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