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公开(公告)号：US20170208265A1
公开(公告)日：2017-07-20
申请号：US14997159
申请日：2016-01-15
发明人： Minlong Lin , Joshua Lund , Patrick Kuschak
IPC分类号： H04N5/357 , H04N5/3745 , H04N5/378
摘要： A wavefront sensing pixel is provided. The wavefront sensing pixel includes a low-pass filter filtering a charge signal from a photodetector and outputting a control signal when low-frequency signals are detected in the charge signal, and a control device to control flow of the charge signal past the control device based on whether a low-frequency signal is detected in the charge signal. The wavefront sensing pixel further includes a low-frequency signal path that receives a flow of signals that flow past the control device, and a high-frequency signal path independent of the low-pass filter and the control device, the high-frequency signal path receiving high-frequency signals included in the charge signal.
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公开(公告)号：US20160300872A1
公开(公告)日：2016-10-13
申请号：US14684121
申请日：2015-04-10
发明人： Joshua Lund , Minlong Lin
IPC分类号： H01L27/146 , H03F3/08
CPC分类号： H03F3/08 , H04N5/3698
摘要： A pixel master-slave photodiode bias control amplifier system is disclosed. The pixel master-slave photodiode bias control amplifier system may include a master pixel and one or more slave pixels. The slave pixel(s) may be connected to a portion of the master pixel. In this manner, components may be shared between/among the master pixel and the slave pixel(s); thus, for example, optimizing the component count of the pixel master-slave photodiode bias control amplifier system and the size occupied by the pixel master-slave photodiode bias control amplifier system.
摘要翻译： 公开了像素主从光电二极管偏置控制放大器系统。 像素主从光电二极管偏置控制放大器系统可以包括主像素和一个或多个从像素。 从属像素可以连接到主像素的一部分。 以这种方式，可以在主像素和从像素之间/之间共享分量; 因此，例如，优化像素主从光电二极管偏置控制放大器系统的分量计数和由像素主从光电二极管偏置控制放大器系统占用的大小。
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3.发明申请SYSTEMS AND METHODS FOR IMAGE LAG MITIGATION FOR BUFFERED DIRECT INJECTION READOUT WITH CURRENT MIRROR 有权用于电流镜的缓冲直接注射读数的图像延迟的系统和方法公开(公告)号：US20140340154A1
公开(公告)日：2014-11-20
申请号：US13895288
申请日：2013-05-15
发明人： Minlong Lin
IPC分类号： H03F3/345
CPC分类号： H03F3/345 , H01L27/14649 , H03F3/082 , H03F2200/261 , H03F2200/78 , H04N5/33 , H04N5/374 , H04N5/3745
摘要： Embodiments relate to systems and methods for image lag mitigation for a buffered direct injection readout circuit with current mirror. A photo detector device is coupled to a buffered direct injection (BDI) circuit, in which an operational amplifier and other elements communicate the output signal from the detector to subsequent stages. The BDI output is transmitted to a first current mirror, which can be implemented as a Säckinger current mirror. The first current mirror is coupled to a second current mirror, one of whose outputs is a fixed bias current. Image lag can be controlled by the fixed bias current, rather than the photocurrent produced directly by the optical detector. In aspects, the negative feedback provided by the first current mirror can increase the modulation of the second current mirror. This gain factor can reduce image lag to a significantly lower point than the lag experienced by known BDI-current-modulated readout circuitry without Säckinger current mirror.
摘要翻译： 实施例涉及用于具有电流镜的缓冲直接注入读出电路的图像滞后缓解的系统和方法。 光检测器装置耦合到缓冲直接注入（BDI）电路，其中运算放大器和其它元件将来自检测器的输出信号传递到后续级。 BDI输出传输到第一电流镜，可以实现为Säckinger电流镜。 第一电流镜耦合到第二电流镜，其中一个输出是固定的偏置电流。 图像滞后可以通过固定偏置电流来控制，而不是由光学检测器直接产生的光电流。 在各方面中，由第一电流镜提供的负反馈可以增加第二电流镜的调制。 该增益因子可以将图像滞后减小到比没有Säckinger电流镜的已知BDI电流调制读出电路经历的滞后的显着更低的点。
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公开(公告)号：US09939324B2
公开(公告)日：2018-04-10
申请号：US14997159
申请日：2016-01-15
发明人： Minlong Lin , Joshua Lund , Patrick Kuschak
摘要： A wavefront sensing pixel is provided. The wavefront sensing pixel includes a low-pass filter filtering a charge signal from a photodetector and outputting a control signal when low-frequency signals are detected in the charge signal, and a control device to control flow of the charge signal past the control device based on whether a low-frequency signal is detected in the charge signal. The wavefront sensing pixel further includes a low-frequency signal path that receives a flow of signals that flow past the control device, and a high-frequency signal path independent of the low-pass filter and the control device, the high-frequency signal path receiving high-frequency signals included in the charge signal.
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公开(公告)号：US09930280B2
公开(公告)日：2018-03-27
申请号：US14987524
申请日：2016-01-04
发明人： Minlong Lin , Joshua Lund
CPC分类号： H04N5/378 , G01S7/4863 , H01L27/1463 , H04N5/357 , H04N5/3696 , H04N5/3745
摘要： An imaging and pulse detection (IPD) pixel array includes a plurality of imaging pixels arranged in a plurality of rows and columns. Each imaging pixel includes a respective photodetector that outputs signals in response to incident light and input laser pulses. The signals include imaging signals that correspond to the incident light and pulse signals that correspond to the input laser pulses. The IPD array further includes an isolation circuit associated with each of the respective imaging pixels, each isolation circuit outputting filtered output pulse signals in response to receiving the signals from the associated imaging pixel, the filtered output pulse signals corresponding to the pulse signals. The IPD array further includes a single pulse detection circuit that toggles between a charged and uncharged state corresponding to a pulse being received from at least one of the isolation circuits.
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公开(公告)号：US09843749B2
公开(公告)日：2017-12-12
申请号：US14988395
申请日：2016-01-05
发明人： Minlong Lin , Joshua Lund , John Liobe
IPC分类号： H04N3/14 , H04N5/359 , H01L27/146 , H03K17/14 , H03K5/08 , H04N5/3745 , H04N5/335
CPC分类号： H04N5/359 , H01L27/14643 , H03K5/088 , H03K17/145 , H04N5/37452
摘要： A leakage mitigation circuit is provided. The leakage mitigation circuit includes an inverter coupled to a storage node, wherein the storage node receives a signal output by an imaging pixel having a first voltage level to be stored. The inverter inverts the signal to a second voltage level. A single transistor coupled to the inverter and the storage node inverts the signal output by the inverter to the first level to hold the signal at the storage node to its original level. A self-biased device coupled to the inverter lowers current disturbance related to the storage node and increase threshold voltage at which fluctuation of the level of the signal at the storage node causes the signal to be inverted by the inverter.
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公开(公告)号：US20170195600A1
公开(公告)日：2017-07-06
申请号：US14987524
申请日：2016-01-04
发明人： Minlong Lin , Joshua Lund
IPC分类号： H04N5/378 , H04N5/369 , H04N5/357 , H01L27/146
CPC分类号： H04N5/378 , G01S7/4863 , H01L27/1463 , H04N5/357 , H04N5/3696 , H04N5/3745
摘要： An imaging and pulse detection (IPD) pixel array includes a plurality of imaging pixels arranged in a plurality of rows and columns. Each imaging pixel includes a respective photodetector that outputs signals in response to incident light and input laser pulses. The signals include imaging signals that correspond to the incident light and pulse signals that correspond to the input laser pulses. The IPD array further includes an isolation circuit associated with each of the respective imaging pixels, each isolation circuit outputting filtered output pulse signals in response to receiving the signals from the associated imaging pixel, the filtered output pulse signals corresponding to the pulse signals. The IPD array further includes a single pulse detection circuit that toggles between a charged and uncharged state corresponding to a pulse being received from at least one of the isolation circuits.
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公开(公告)号：US20170195592A1
公开(公告)日：2017-07-06
申请号：US14988395
申请日：2016-01-05
发明人： Minlong Lin , Joshua Lund , John Liobe
IPC分类号： H04N5/359 , H04N5/3745 , H03K5/08 , H01L27/146 , H03K17/14
CPC分类号： H04N5/359 , H01L27/14643 , H03K5/088 , H03K17/145 , H04N5/37452
摘要： A leakage mitigation circuit is provided. The leakage mitigation circuit includes an inverter coupled to a storage node, wherein the storage node receives a signal output by an imaging pixel having a first voltage level to be stored. The inverter inverts the signal to a second voltage level. A single transistor coupled to the inverter and the storage node inverts the signal output by the inverter to the first level to hold the signal at the storage node to its original level. A self-biased device coupled to the inverter lowers current disturbance related to the storage node and increase threshold voltage at which fluctuation of the level of the signal at the storage node causes the signal to be inverted by the inverter.
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公开(公告)号：US09769400B2
公开(公告)日：2017-09-19
申请号：US14997184
申请日：2016-01-15
发明人： Minlong Lin , Joshua Lund
摘要： An imaging pixel is provided. The imaging pixel includes a photodetector that outputs charge signals in response to incident light and laser pulses and a high-frequency path. A detector biasing circuit is further provided that biases high-frequency signals of the charge signals that are associated with the laser pulses to follow the high frequency path. The detector biasing circuit effectively filters low-frequency signal components of the charge signals from following the high-frequency path.
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公开(公告)号：US20170207262A1
公开(公告)日：2017-07-20
申请号：US14997171
申请日：2016-01-15
发明人： Minlong Lin , Joshua Lund
IPC分类号： H01L27/146
CPC分类号： H01L27/14612 , H01L27/14643
摘要： An imaging pixel including a control device to control flow of a charge signal from a photodetector. The control device has a variable impedance that varies in response to frequency of an input signal, the control device being biased to permit signals to flow through the control device dependent on the frequency of signals being output by the photodetector. The imaging pixel further includes a low-frequency signal path that receives a flow of signals that flow through the control device, and a high-frequency signal path independent of the low-pass filter and the control device, the high-frequency signal path receiving high-frequency signals included in the charge signal.
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