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1. 发明申请

WO2009137030A1 APPARATUS AND METHOD FOR COLUMN FIXED PATTERN NOISE (FPN) CORRECTION 审中-公开
标题翻译：柱固定图案噪声（FPN）校正的装置和方法
公开(公告)号：WO2009137030A1
公开(公告)日：2009-11-12
申请号：PCT/US2009/002766
申请日：2009-05-05
申请人： ALTASENS, INC. , SHAH, Joey , RICHARDSON, John , BLANQUART, Laurent
发明人： SHAH, Joey , RICHARDSON, John , BLANQUART, Laurent
IPC分类号： H04N5/217
CPC分类号： H04N5/3658
摘要： An apparatus and method for fixed pattern noise (FPN) correction in an image sensor utilizes at least one row of test pixels. An external voltage is applied to each pixel circuit in the at least one row. Thus, the output of the test pixels does not depend on the photo or dark current signals. The applied voltage is used to determine a column offset error for each column in the image sensor.
摘要翻译：用于图像传感器中的固定模式噪声（FPN）校正的装置和方法利用至少一行测试像素。对至少一行中的每个像素电路施加外部电压。因此，测试像素的输出不依赖于照片或暗电流信号。施加的电压用于确定图像传感器中每列的列偏移误差。

2. 发明申请

WO2008112104A1 APPARATUS AND METHOD FOR STABILIZING IMAGE SENSOR BLACK LEVEL 审中-公开
标题翻译：用于稳定图像传感器黑色电平的装置和方法
公开(公告)号：WO2008112104A1
公开(公告)日：2008-09-18
申请号：PCT/US2008/002887
申请日：2008-03-05
申请人： ALTASENS, INC. , RICHARDSON, John , HUANG, Ying , WALLNER, John , SHAH, Joey , BLANQUART, Laurent , MARCHESINI, Roberto , ROSSI, Giuseppe , MAO, Qianjiang
发明人： RICHARDSON, John , HUANG, Ying , WALLNER, John , SHAH, Joey , BLANQUART, Laurent , MARCHESINI, Roberto , ROSSI, Giuseppe , MAO, Qianjiang
IPC分类号： G06F15/00
CPC分类号： H04N5/361 , H04N5/2176 , H04N5/3658
摘要： A black clamp stabilization circuit for an image sensor utilizes a mixed-signal SoC block comprising sub-blocks to dynamically and precisely adjust the black level based on comparison to a reference black level. The black level adjustments include a first level regulation using digital control of an analog signal in a feedback loop that includes a programmable gain amplifier and high-resolution A/D converter. By applying the black clamping in the analog domain, dynamic range is extended. Additional black level regulation is subsequently performed in the digital domain to differentially eliminate line noise and column noise generated within the imaging System-on-Chip. By providing information between the sub-blocks, the algorithms can converge more quickly. The technique enables multiple signal paths to separately handle individual colors and to increase imaging data throughput.
摘要翻译：用于图像传感器的黑色钳位稳定电路利用包括子块的混合信号SoC块，以基于与参考黑色电平的比较来动态且精确地调整黑色电平。黑电平调节包括使用包括可编程增益放大器和高分辨率A / D转换器的反馈环路中的模拟信号的数字控制的第一电平调节。通过在模拟域中施加黑色钳位，可以延长动态范围。随后在数字域中执行额外的黑电平调节，以差分消除在成像片上系统中产生的线噪声和列噪声。通过在子块之间提供信息，算法可以更快地收敛。该技术使得多个信号路径可以分开处理各种颜色并增加成像数据吞吐量。

3. 发明申请

WO2008108924A1 CROSS-COUPLED DIFFERENTIAL DAC-BASED BLACK CLAMP CIRCUIT 审中-公开
标题翻译：交叉耦合差分DAC基闭合电路
公开(公告)号：WO2008108924A1
公开(公告)日：2008-09-12
申请号：PCT/US2008/002164
申请日：2008-02-19
申请人： ALTASENS, INC. , RICHARDSON, John , SHAH, Joey , BLANQUART, Laurent
发明人： RICHARDSON, John , SHAH, Joey , BLANQUART, Laurent
IPC分类号： H04N5/217
CPC分类号： H04N5/378 , H04N5/361
摘要： A black clamp circuit for an image sensor utilizes a differential programmable gain amplifier and a feed-back loop to adjust a black level based on comparison to a reference black level. The gain (and therefore step size and range) of the feed-back loop constant for all programmable gain amplifier gain settings. The gain of the fee- back loop is kept constant by adjusting the values of programmable capacitors in the circuit.
摘要翻译：用于图像传感器的黑色钳位电路利用差分可编程增益放大器和反馈回路来基于与参考黑电平的比较来调整黑电平。所有可编程增益放大器增益设置的反馈回路常数的增益（以及步长和范围）。通过调整电路中的可编程电容器的值，使返回回路的增益保持不变。

4. 发明申请

WO2009088597A4 TWO-BY-TWO PIXEL STRUCTURE IN AN IMAGING SYSTEM-ON-CHIP 审中-公开
公开(公告)号：WO2009088597A4
公开(公告)日：2009-07-16
申请号：PCT/US2008/085557
申请日：2008-12-04
申请人： ALTASENS, INC. , SHAH, Joey , BLANQUART, Laurent
发明人： SHAH, Joey , BLANQUART, Laurent
IPC分类号： H04N9/04 , H04N5/3745 , H04N5/374
摘要： The claimed subject matter provides systems and/or methods that facilitate mitigating an impact resulting from mismatch between signal chains in a CMOS imaging System-on-Chip (iSoC) sensor. Two-by-two pixel structures can be a basic building block upon which a pixel array is constructed. Further, each two-by-two pixel structure can be associated with a read bus that carries a sampled signal to a top end and a bottom end of a chip. Moreover, multiplexers at either end of the chip can select a subset of the read buses from which to receive a subset of the sampled signals. Accordingly, pixels in a first color plane can be read, processed, etc. on the same side of the chip (e.g., utilizing a common signal chain), while pixels in at least one second color plane can be read, processed, etc. on the other side of the chip (e.g., employing a differing signal chain).

5. 发明申请

WO2013022921A1 FRONT-END PIXEL FIXED PATTERN NOISE CORRECTION IN IMAGING ARRAYS HAVING WIDE DYNAMIC RANGE 审中-公开
标题翻译：具有宽动态范围的成像阵列中的前端像素固定图案噪声校正
公开(公告)号：WO2013022921A1
公开(公告)日：2013-02-14
申请号：PCT/US2012/049913
申请日：2012-08-08
申请人： ALTASENS, INC , BLANQUART, Laurent , HUANG, Ying , SHAH, Joey , STANDLEY, David Lawrence
发明人： BLANQUART, Laurent , HUANG, Ying , SHAH, Joey , STANDLEY, David Lawrence
IPC分类号： H04L7/00
CPC分类号： H04N5/378 , H04N5/365
摘要： Aspects describe front-end pixel fixed pattern noise correction in imaging arrays having wide dynamic range. A photosensor of a first pixel in a first row of an array is reset and a first reset level of the first pixel is measured. The array comprises a plurality of pixels arranged in rows and columns. In response to a result of the first reset level, a reset bus is altered. A feed-forward adjustment of the photosensor of the first pixel is performed to substantially remove fixed-pattern noise. An external readout from the photosensor can occur with substantially all the fixed-pattern noise removed. In some aspects, the adjustment is performed by a switched capacitor block.
摘要翻译：方面描述了具有宽动态范围的成像阵列中的前端像素固定图案噪声校正。阵列的第一行中的第一像素的光电传感器被复位，并且测量第一像素的第一复位电平。阵列包括以行和列排列的多个像素。响应于第一复位电平的结果，复位总线被改变。执行第一像素的光传感器的前馈调整以基本上去除固定图案噪声。可以发生来自光电传感器的外部读出，其中消除了基本上所有的固定图案噪声。在一些方面，调节由开关电容器块执行。

6. 发明申请

WO2008070180A2 APPARATUS AND METHOD FOR REDUCING DARK CURRENT 审中-公开
标题翻译：降低深电流的装置和方法
公开(公告)号：WO2008070180A2
公开(公告)日：2008-06-12
申请号：PCT/US2007/025086
申请日：2007-12-06
申请人： ALTASENS, INC. , BLANQUART, Laurent , SHAH, Joey
发明人： BLANQUART, Laurent , SHAH, Joey
IPC分类号： H04N9/64
CPC分类号： H01L27/14643 , H01L27/14609
摘要： An apparatus and method that reduces the dark current in each pixel of an image sensor, where each pixel has a pinned photodiode. A negative potential barrier at the transfer gate of each pixel is raised when the photodiode is integrating (when the transfer gate is "off'') to thereby eliminate dark current generation in this region. The potential barrier is applied via a "triple well" transistor circuit structure that is capable of handling a strongly negative voltage. The circuit structure also serves as a conduit for conducting a strongly positive voltage to minimize the potential barrier during signal transfer and readout, thereby reducing image lag.
摘要翻译：一种降低图像传感器每个像素中的暗电流的装置和方法，其中每个像素具有钉扎光电二极管。当光电二极管积分时（当传输门“关闭”）时，每个像素的传输栅极处的负电位势垒增加，从而消除该区域中的暗电流产生，通过“三阱” 能够处理强负电压的晶体管电路结构，电路结构还用作导通强正电压的导线，以在信号传输和读出期间使势垒最小化，从而减少图像滞后。

7. 发明申请

WO2013028655A1 PROGRAMMABLE DATA READOUT FOR AN OPTICAL SENSOR 审中-公开
标题翻译：光学传感器的可编程数据读数
公开(公告)号：WO2013028655A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/051661
申请日：2012-08-21
申请人： ALTASENS,INC. , BLANQUART, Laurent , WALLNER, John D. , MAO, Qianjiang
发明人： BLANQUART, Laurent , WALLNER, John D. , MAO, Qianjiang
IPC分类号： G02B26/08
CPC分类号： H04N5/343 , H04N5/3452 , H04N5/347
摘要： Programmable data readout for optical image sensors is disclosed herein. By way of example, vertical skipping and vertical mixing functionality is provided that is responsive to commands, enabling dynamic selectivity and processing of optical sensor data. A data output control system can be incorporated with or coupled to data readout circuitry of an optical sensor. The output control system comprises a vertical skipping engine that can dynamically select a subset of data for output in response to one or more skipping commands, and a vertical mixing engine that can act upon subsets of data in accordance with processing functions called by respective mixing commands. The disclosure provides simplification of selective data readout and processing for image sensors, potentially reducing design, testing, and maintenance overhead, as well as cost and number of integrated circuit components.
摘要翻译：本文公开了用于光学图像传感器的可编程数据读出。作为示例，提供垂直跳跃和垂直混合功能，其响应命令，实现光学传感器数据的动态选择性和处理。数据输出控制系统可以结合或耦合到光学传感器的数据读出电路。输出控制系统包括垂直跳过引擎，其可以响应于一个或多个跳过命令来动态地选择用于输出的数据子集;以及垂直混合引擎，其可以根据由各个混合命令调用的处理函数而对数据子集执行操作。该公开提供了用于图像传感器的选择性数据读出和处理的简化，可能降低设计，测试和维护开销，以及集成电路组件的成本和数量。

8. 发明申请

WO2010132108A1 OPERATIONAL TRANS-CONDUCTANCE AMPLIFIER WITH OUTPUT CLAMP CIRCUIT 审中-公开
标题翻译：具有输出钳位电路的操作变压器放大器
公开(公告)号：WO2010132108A1
公开(公告)日：2010-11-18
申请号：PCT/US2010/001412
申请日：2010-05-11
申请人： ALTASENS, INC. , STANDLEY, David , BLANQUART, Laurent
发明人： STANDLEY, David , BLANQUART, Laurent
IPC分类号： H03F3/00
CPC分类号： H03F1/523 , H03F3/45192 , H03F2200/441 , H03F2203/45636
摘要： An operational trans-conductance amplifier circuit having a voltage clamp circuit. The clamp circuit utilizes low area and power overhead, has a sharp clamp characteristic, and little degradation in the small-signal DC gain at the "knee" of the clamp characteristic. The clamp circuit includes a comparator circuit and a current control circuit. The amplifier and clamp circuits may further include a clamp voltage generator circuit.
摘要翻译：一种具有电压钳位电路的运行的跨导放大器电路。钳位电路利用低面积和功率开销，具有尖锐的钳位特性，并且在钳位特性的“拐点”处的小信号DC增益几乎没有劣化。钳位电路包括比较器电路和电流控制电路。放大器和钳位电路还可以包括钳位电压发生器电路。

9. 发明申请

WO2009054962A1 GLOBAL SHUTTER PIXEL CIRCUIT WITH TRANSISTOR SHARING FOR CMOS IMAGE SENSORS 审中-公开
标题翻译：全球快门像素电路与CMOS图像传感器的晶体管共享
公开(公告)号：WO2009054962A1
公开(公告)日：2009-04-30
申请号：PCT/US2008/012002
申请日：2008-10-22
申请人： ALTASENS, INC. , BLANQUART, Laurent
发明人： BLANQUART, Laurent
IPC分类号： H01L27/00
CPC分类号： H04N5/353 , H01L27/14641 , H04N5/37457
摘要： A pixel circuit having a global shutter and transistor circuit sharing for CMOS image sensors. In one embodiment, a shared circuit includes a reset transistor, an amplifier transistor, and a readout transistor. At least two photodiode signal generation circuits share the shared circuit, wherein each signal generation circuit includes a capture transistor, a hold transistor, and a transfer transistor. Each pixel generation circuit may also include a photodiode reset transistor. In an alternate embodiment, each signal generation circuit does not include a separate transfer transistor, instead, the transfer transistor is part of the shared circuit.
摘要翻译：具有用于CMOS图像传感器的全局快门和晶体管电路共享的像素电路。在一个实施例中，共享电路包括复位晶体管，放大器晶体管和读出晶体管。至少两个光电二极管信号产生电路共享共享电路，其中每个信号产生电路包括捕获晶体管，保持晶体管和传输晶体管。每个像素产生电路还可以包括光电二极管复位晶体管。在替代实施例中，每个信号发生电路不包括单独的传输晶体管，而是传输晶体管是共享电路的一部分。

10. 发明申请

WO2009009230A1 CONTROLLING TIMING DEPENDENCIES IN A MIXED SIGNAL SYSTEM-ON-A-CHIP (SOC) 审中-公开
标题翻译：控制混合信号系统中的时序依赖关系（SOC）
公开(公告)号：WO2009009230A1
公开(公告)日：2009-01-15
申请号：PCT/US2008/065635
申请日：2008-06-03
申请人： ALTASENS, INC. , MARCHESINI, Roberto , BLANQUART, Laurent , MAO, Qianjiang , WALLNER, John D.
发明人： MARCHESINI, Roberto , BLANQUART, Laurent , MAO, Qianjiang , WALLNER, John D.
IPC分类号： H04N5/335
CPC分类号： H04N5/335
摘要： The claimed subject matter provides systems and/or methods that facilitate controlling timing dependencies in a mixed signal circuit. Timing performance associated with a horizontal scanner and an analog to digital converter (ADC) can be monitored. Moreover, data related to the monitored timing performance can be leveraged to modify timing parameter(s) of clocks that coordinate operations of the horizontal scanner and the ADC (e.g., and/or digital component(s) included in the mixed signal circuit). For example, the clocks associated with the horizontal scanner and the ADC can be independently tuned to optimize mixed signal circuit performance.
摘要翻译：所要求保护的主题提供了有助于控制混合信号电路中的时序依赖性的系统和/或方法。可以监视与水平扫描仪和模数转换器（ADC）相关的时序性能。此外，可以利用与所监视的定时性能相关的数据来修改协调水平扫描仪和ADC（例如，混合信号电路中包括的和/或数字组件）的操作的时钟的定时参数。例如，可以独立调整与水平扫描器和ADC相关的时钟，以优化混合信号电路性能。

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