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1. 发明申请

US20140374570A1 GAIN-RANGING CHARGE AMPLIFIER 有权
标题翻译：增益充电放大器
公开(公告)号：US20140374570A1
公开(公告)日：2014-12-25
申请号：US14012154
申请日：2013-08-28
申请人： Camille L. HUIN , Gary R. CARREAU
发明人： Camille L. HUIN , Gary R. CARREAU
IPC分类号： H04N5/378
CPC分类号： H04N5/378 , G01J1/44 , G01J2001/4406
摘要： The system may include a pixel array, a selector, a sampler, and a converter. The pixel array may generate output signals that representing radiation incident upon the pixel array. The selector may select one of the output signals. The sampler may sample the selected output signal. The converter may generate a digital signal based upon the selected output signal. The sampler may include a charge integrator that compensates for parasitic capacitance of the selector by selecting a first feedback capacitance to obtain a first sample, and after obtaining the first sample, selecting a second feedback capacitance to obtain a second sample. The first feedback capacitance may be greater than the second feedback capacitance.
摘要翻译：该系统可以包括像素阵列，选择器，采样器和转换器。像素阵列可以生成表示入射在像素阵列上的辐射的输出信号。选择器可以选择输出信号之一。采样器可以对选定的输出信号进行采样。转换器可以基于所选择的输出信号产生数字信号。采样器可以包括电荷积分器，其通过选择第一反馈电容来获得第一采样来补偿选择器的寄生电容，并且在获得第一采样之后，选择第二反馈电容以获得第二采样。第一反馈电容可以大于第二反馈电容。

2. 发明申请

US20130194118A1 CORRELATED DOUBLE-SAMPLE DIFFERENCING WITHIN AN ADC 有权
标题翻译：在ADC中相关的双重样本差异
公开(公告)号：US20130194118A1
公开(公告)日：2013-08-01
申请号：US13565082
申请日：2012-08-02
申请人： Michael COLN , Gary R. CARREAU , Yoshinori KUSUDA
发明人： Michael COLN , Gary R. CARREAU , Yoshinori KUSUDA
IPC分类号： H03M1/12
CPC分类号： H03M1/124 , H03M1/0682 , H03M1/12 , H03M1/1245 , H03M1/468 , H04N5/3575
摘要： A circuit system for performing correlated double sampling may include a signal sampling stage having an amplifier with a feedback capacitor and a pair of storage capacitors coupled to an output of the amplifier, and a differential analog to digital converter (ADC) having a pair of inputs coupled respectively to storage capacitors of the signal sampling stage. The signal sampling stage may receive reset and signal values from a sensor device and may store processed versions of those signals on respective storage capacitors. The differential ADC may generate a digital value representing a signal captured by the sensor device from a differential digitization operation performed on the processed versions of the reset and signal values. In this manner, the system may correct for any signal errors introduced by components of the sampling stage.
摘要翻译：用于执行相关双重采样的电路系统可以包括具有放大器的信号采样级，其具有反馈电容器和耦合到放大器的输出的一对存储电容器，以及具有一对输入的差分模数转换器（ADC）分别耦合到信号采样级的存储电容器。信号采样级可以从传感器设备接收复位和信号值，并且可以将这些信号的处理版本存储在相应的存储电容器上。差分ADC可以从针对复位和信号值的处理版本执行的差分数字化操作产生表示由传感器装置捕获的信号的数字值。以这种方式，系统可以校正由采样级的部件引入的任何信号错误。

3. 发明授权

US06674386B2 Dual channel analog to digital converter 有权
标题翻译：双通道模数转换器
公开(公告)号：US06674386B2
公开(公告)日：2004-01-06
申请号：US10142500
申请日：2002-05-10
申请人： Gary R. Carreau , Bruce E. Amazeen , Michael C. W. Coln
发明人： Gary R. Carreau , Bruce E. Amazeen , Michael C. W. Coln
IPC分类号： H03M112
CPC分类号： H03M1/1004 , H03M1/123
摘要： A dual channel ADC uses two digital to analog converters (DACs) and a single comparator to convert two analog input channels. One DAC is used for successive approximation, while the other DAC is used for calibration. The dual channel ADC allows for sampling and conversion of single-ended, pseudo-differential, and fully differential analog input signals while maintaining layout symmetry and reducing crosstalk without substantially increasing circuit area. The single comparator is used for converting both analog input channels. Additional logic (such as switches or digital logic) is used to connect the input sampling capacitors and DACs to the appropriate inputs of the comparator for converting the analog input channels.
摘要翻译：双通道ADC使用两个数模转换器（DAC）和一个单个比较器来转换两个模拟输入通道。一个DAC用于逐次逼近，而另一个DAC用于校准。双通道ADC允许单端，伪差分和全差分模拟输入信号的采样和转换，同时保持布局对称性并减少串扰，而不会显着增加电路面积。单个比较器用于转换两个模拟输入通道。附加逻辑（如开关或数字逻辑）用于将输入采样电容和DAC连接到比较器的相应输入端，以转换模拟输入通道。

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