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1. 发明授权

US08803979B2 Self test of image signal chain while running in streaming mode 有权
标题翻译：在流式传输模式下运行图像信号链的自检
公开(公告)号：US08803979B2
公开(公告)日：2014-08-12
申请号：US13248120
申请日：2011-09-29
申请人： Johannes Solhusvik , Tore Martinussen
发明人： Johannes Solhusvik , Tore Martinussen
IPC分类号： H04N17/00 , H04N17/02
CPC分类号： H04N17/002 , H04N5/378 , H04N9/097
摘要： An imager including a self test mode. The imager includes a pixel array for providing multiple pixel output signals via multiple columns; and a test switch for (a) receiving a test signal from a test generator and (b) disconnecting a pixel output signal from a column of the pixel array. The test switch provides the test signal to the column of the pixel array. The test signal includes a test voltage that replaces the pixel output signal. The test signal is digitized by an analog-to digital converter (ADC) and provided to a processor. The processor compares the digitized test signal to an expected pixel output signal. The processor also interpolates the output signal from a corresponding pixel using adjacent pixels, when the test switch disconnects the pixel output signal from the column of the pixel array.
摘要翻译：包括自检模式的成像仪。该成像器包括用于通过多列提供多个像素输出信号的像素阵列; 以及用于（a）从测试发生器接收测试信号的测试开关和（b）从像素阵列的列中断开像素输出信号。测试开关向像素阵列的列提供测试信号。测试信号包括替代像素输出信号的测试电压。测试信号由模数转换器（ADC）数字化并提供给处理器。处理器将数字化测试信号与期望的像素输出信号进行比较。当测试开关断开像素阵列的列的像素输出信号时，处理器还使用相邻像素来内插来自相应像素的输出信号。

2. 发明授权

US08723095B2 Method and apparatus for ambient light detection including plural image pixels and at least one dark pixel 有权
标题翻译：包括多个图像像素和至少一个暗像素的环境光检测方法和装置
公开(公告)号：US08723095B2
公开(公告)日：2014-05-13
申请号：US13398804
申请日：2012-02-16
申请人： Johannes Solhusvik , Trygve Willassen
发明人： Johannes Solhusvik , Trygve Willassen
IPC分类号： H01L27/00
CPC分类号： H04N5/2351 , H01L27/14612 , H01L27/14623 , H01L27/14625 , H04N5/23241 , H04N5/361 , H04N5/3696 , H04N5/378
摘要： Electronic devices may be provided with image sensors. Image sensors may be configured to capture images during imaging operations and monitor ambient light levels during non-imaging operations. An image sensor may include image pixels that receive light and dark pixels that are prevented from receiving light. An image sensor may include an ambient light detection circuit. The ambient light detection circuit may include an oscillator, timing and control circuitry, and a counter. The oscillator may be switchably coupled to the image pixels and the dark pixels. The counter may be configured to count up oscillator cycles of the oscillator while the oscillator is coupled to the image pixels and to count down oscillator cycles of the oscillator while the oscillator is coupled to the dark pixels. The counter may provide a count value that depends on a signal from the image pixels and a signal from the dark pixels.
摘要翻译：电子设备可以设置有图像传感器。图像传感器可以被配置为在成像操作期间捕获图像，并且在非成像操作期间监视环境光水平。图像传感器可以包括接收被防止接收光的光和暗像素的图像像素。图像传感器可以包括环境光检测电路。环境光检测电路可以包括振荡器，定时和控制电路以及计数器。振荡器可以可切换地耦合到图像像素和暗像素。计数器可以被配置为在振荡器耦合到图像像素的同时对振荡器的振荡器周期进行计数，并且在振荡器耦合到暗像素的同时对振荡器的振荡器周期进行计数。计数器可以提供取决于来自图像像素的信号和来自暗像素的信号的计数值。

3. 发明申请

US20130214125A1 METHOD AND APPARATUS FOR AMBIENT LIGHT DETECTION 有权
标题翻译：用于环境光检测的方法和装置
公开(公告)号：US20130214125A1
公开(公告)日：2013-08-22
申请号：US13398804
申请日：2012-02-16
申请人： Johannes Solhusvik , Trygve Willassen
发明人： Johannes Solhusvik , Trygve Willassen
IPC分类号： H01L27/146
CPC分类号： H04N5/2351 , H01L27/14612 , H01L27/14623 , H01L27/14625 , H04N5/23241 , H04N5/361 , H04N5/3696 , H04N5/378
摘要： Electronic devices may be provided with image sensors. Image sensors may be configured to capture images during imaging operations and monitor ambient light levels during non-imaging operations. An image sensor may include image pixels that receive light and dark pixels that are prevented from receiving light. An image sensor may include an ambient light detection circuit. The ambient light detection circuit may include an oscillator, timing and control circuitry, and a counter. The oscillator may be switchably coupled to the image pixels and the dark pixels. The counter may be configured to count up oscillator cycles of the oscillator while the oscillator is coupled to the image pixels and to count down oscillator cycles of the oscillator while the oscillator is coupled to the dark pixels. The counter may provide a count value that depends on a signal from the image pixels and a signal from the dark pixels.
摘要翻译：电子设备可以设置有图像传感器。图像传感器可以被配置为在成像操作期间捕获图像，并且在非成像操作期间监视环境光水平。图像传感器可以包括接收被防止接收光的光和暗像素的图像像素。图像传感器可以包括环境光检测电路。环境光检测电路可以包括振荡器，定时和控制电路以及计数器。振荡器可以可切换地耦合到图像像素和暗像素。计数器可以被配置为在振荡器耦合到图像像素的同时对振荡器的振荡器周期进行计数，并且在振荡器耦合到暗像素的同时对振荡器的振荡器周期进行计数。计数器可以提供取决于来自图像像素的信号和来自暗像素的信号的计数值。

4. 发明申请

US20120219235A1 BLOOMING FILTER FOR MULTIPLE EXPOSURE HIGH DYNAMIC RANGE IMAGE SENSORS 有权
标题翻译：多曝光高动态范围图像传感器的吹扫过滤器
公开(公告)号：US20120219235A1
公开(公告)日：2012-08-30
申请号：US13074976
申请日：2011-03-29
申请人： Johannes Solhusvik , Sohrab Yaghmai , Peng Lin
发明人： Johannes Solhusvik , Sohrab Yaghmai , Peng Lin
IPC分类号： G06K9/40
CPC分类号： G06T5/50 , G06T2207/10144 , G06T2207/20208
摘要： Multiple-exposure high dynamic range image processing may be performed that filters pixel values that are distorted by blooming from nearby saturated pixels. Pixel values that are near saturated pixels may be identified as pixels that may be affected by blooming. The contributions from those pixels may be minimized when producing a final image. Multiple-exposure images may be linearly combined to produce a final high dynamic range image. Pixel values that may be distorted by blooming may be given less weight in the linear combination.
摘要翻译：可以执行多次曝光高动态范围图像处理，其对来自附近的饱和像素的渐变而失真的像素值进行滤波。靠近饱和像素的像素值可以被识别为可能受到开花影响的像素。当产生最终图像时，这些像素的贡献可能被最小化。多曝光图像可以被线性组合以产生最终的高动态范围图像。在线性组合中可能会发生可能由于起霜而变形的像素值。

5. 发明申请

US20080054320A1 Method, apparatus and system providing suppression of noise in a digital imager 审中-公开
标题翻译：在数字成像仪中提供噪声抑制的方法，装置和系统
公开(公告)号：US20080054320A1
公开(公告)日：2008-03-06
申请号：US11513392
申请日：2006-08-31
申请人： Johannes Solhusvik , Kwang-Bo Cho
发明人： Johannes Solhusvik , Kwang-Bo Cho
IPC分类号： H01L31/113
CPC分类号： H04N5/3575 , H04N5/361 , H04N5/3658 , H04N5/3745
摘要： Method, apparatus and systems are disclosed in which a digital imager has optically black reference pixels in at least one row of a pixel array. The signals from the reference pixels in one row of the array are used as reference signals to cancel out the row-wise noise from pixel signals readout from active pixels in other rows of the array. An arrangement for locating the array driving circuit relative to the reference pixels is also provided.
摘要翻译：公开了一种方法，装置和系统，其中数字成像器在像素阵列的至少一行中具有光学黑参考像素。来自阵列的一行中的参考像素的信号用作参考信号，以从阵列的其他行中的有源像素读出的像素信号中消除行方向的噪声。还提供了一种用于将阵列驱动电路相对于参考像素定位的装置。

6. 发明授权

US08873882B2 Blooming filter for multiple exposure high dynamic range image sensors 有权
标题翻译：用于多曝光高动态范围图像传感器的开花滤镜
公开(公告)号：US08873882B2
公开(公告)日：2014-10-28
申请号：US13074976
申请日：2011-03-29
申请人： Johannes Solhusvik , Sohrab Yaghmai , Peng Lin
发明人： Johannes Solhusvik , Sohrab Yaghmai , Peng Lin
IPC分类号： G06K9/36 , G06T5/50
CPC分类号： G06T5/50 , G06T2207/10144 , G06T2207/20208
摘要： Multiple-exposure high dynamic range image processing may be performed that filters pixel values that are distorted by blooming from nearby saturated pixels. Pixel values that are near saturated pixels may be identified as pixels that may be affected by blooming. The contributions from those pixels may be minimized when producing a final image. Multiple-exposure images may be linearly combined to produce a final high dynamic range image. Pixel values that may be distorted by blooming may be given less weight in the linear combination.
摘要翻译：可以执行多次曝光高动态范围图像处理，其对来自附近的饱和像素的渐变而失真的像素值进行滤波。靠近饱和像素的像素值可以被识别为可能受到开花影响的像素。当产生最终图像时，这些像素的贡献可能被最小化。多曝光图像可以被线性组合以产生最终的高动态范围图像。在线性组合中可能会发生可能由于起霜而变形的像素值。

7. 发明申请

US20100002094A1 Method and apparatus providing multiple exposure high dynamic range sensor 有权
标题翻译：提供多重曝光高动态范围传感器的方法和装置
公开(公告)号：US20100002094A1
公开(公告)日：2010-01-07
申请号：US12216433
申请日：2008-07-03
申请人： Johannes Solhusvik , Robert Johansson
发明人： Johannes Solhusvik , Robert Johansson
IPC分类号： H04N5/235 , H03L7/00
CPC分类号： H04N5/35581 , H04N5/2355 , H04N5/378
摘要： Imagers reproduce an image by converting photons to a signal that is representative of the image. A sensor readout module reads reset and signal voltages corresponding to a plurality of integration times for each of a plurality of pixels. The sensor readout module is capable of determining whether the differences between reset and signal voltages corresponding to respective integration times indicate a saturation condition of the pixel. Accordingly, the sensor readout module may provide an output signal based on reset and signal voltages corresponding to an integration time that is less than an integration time for reset and signal voltages that indicate the saturation condition. A normalization module may normalize the output signal to correspond with a linear response curve.
摘要翻译：成像器通过将光子转换成代表图像的信号来再现图像。传感器读出模块读取对应于多个像素中的每一个的多个积分时间的复位和信号电压。传感器读出模块能够确定与各个积分时间对应的复位和信号电压之间的差异是否表示像素的饱和状态。因此，传感器读出模块可以基于对应于低于用于复位的积分时间和指示饱和条件的信号电压的积分时间的复位和信号电压来提供输出信号。归一化模块可以将输出信号归一化以对应于线性响应曲线。

8. 发明申请

US20080117661A1 Method, apparatus and system providing memory cells associated with a pixel array 审中-公开
标题翻译：提供与像素阵列相关联的存储单元的方法，装置和系统
公开(公告)号：US20080117661A1
公开(公告)日：2008-05-22
申请号：US11600203
申请日：2006-11-16
申请人： Karl Holtzclaw , Chen Xu , Richard A. Mauritzson , Yangdon Chen , Jeffrey Bruce , Xiangli Li , Johannes Solhusvik
发明人： Karl Holtzclaw , Chen Xu , Richard A. Mauritzson , Yangdon Chen , Jeffrey Bruce , Xiangli Li , Johannes Solhusvik
IPC分类号： G11C17/18 , G11C11/34
CPC分类号： H04N5/335 , H01L23/5252 , H01L27/112 , H01L27/11206 , H01L27/14643 , H01L2924/0002 , H01L2924/00
摘要： A method, apparatus, and system are disclosed providing an imaging device with memory cells containing anti-fuse elements located with or outside a pixel array. The memory cells are read out using control signal lines which are used to readout imaging pixels.
摘要翻译：公开了一种提供成像装置的存储单元的方法，装置和系统，所述存储单元包含位于像素阵列内或外的反熔丝元件。使用用于读出成像像素的控制信号线读出存储单元。

9. 发明授权

US08767098B2 Method and apparatus for reducing noise in analog image data of a CMOS image sensor 有权
标题翻译：用于降低CMOS图像传感器的模拟图像数据中的噪声的方法和装置
公开(公告)号：US08767098B2
公开(公告)日：2014-07-01
申请号：US13599760
申请日：2012-08-30
申请人： Johannes Solhusvik
发明人： Johannes Solhusvik
IPC分类号： H04N9/64
CPC分类号： H04N5/357 , H04N5/2173 , H04N5/378
摘要： A method for preprocessing analog image data to reduce noise in the analog image data that is readout from a pixel array of an image sensor during a sampling time is disclosed. The method includes generating multiple samples of the analog image data during the sampling time and then limiting values of the multiple samples to an upper and lower threshold. The method also includes pre-conditioning the multiple samples by applying a weighting factor to each of the multiple samples in response to when a respective sample was generated during the sampling time. A median value of the multiple samples is then determined and outputted.
摘要翻译：公开了一种用于预处理模拟图像数据以减少在采样时间期间从图像传感器的像素阵列读出的模拟图像数据中的噪声的方法。该方法包括在采样时间期间生成模拟图像数据的多个样本，然后将多个样本的值限制为上限和下限阈值。该方法还包括通过响应于在采样时间内何时生成相应样品，对多个样本中的每一个应用加权因子来对多个样本进行预处理。然后确定并输出多个样本的中值。

10. 发明授权

US08730330B2 Image sensors with dark pixels for real-time verification of imaging systems 有权
标题翻译：具有暗像素的图像传感器，用于实时验证成像系统
公开(公告)号：US08730330B2
公开(公告)日：2014-05-20
申请号：US13399912
申请日：2012-02-17
申请人： Johannes Solhusvik , Neal Crook
发明人： Johannes Solhusvik , Neal Crook
IPC分类号： H04N17/02 , H04N5/217 , H04N9/64
CPC分类号： H04N17/002 , H04N5/335 , H04N5/3559 , H04N5/37452
摘要： An imaging system may include an array of image pixels. The array of image pixels may be provided with one or more rows and columns of optically shielded dark image pixels. The dark image pixels may be used to produce verification image data that follows the same pixel-to-output data path of light-receiving pixels. The output signals from dark pixels may be continuously or intermittently compared with a set of expected output signals to verify that the imaging system is functioning properly. In some arrangements, verification image data may include a current frame number that is encoded into the dark pixels. The encoded current frame number may be compared with an expected current frame number. In other arrangements, dark pixels may be configured to have a predetermined pattern of conversion gain levels. The output signals may be compared with a “golden” image or other predetermined set of expected output signals.
摘要翻译：成像系统可以包括图像像素阵列。图像像素阵列可以设置有一个或多个光学屏蔽的暗图像像素的行和列。暗图像像素可以用于产生跟随光接收像素的相同像素到输出数据路径的验证图像数据。来自暗像素的输出信号可以与一组预期输出信号连续或间歇地比较，以验证成像系统是否正常工作。在一些布置中，验证图像数据可以包括编码到暗像素中的当前帧号。编码的当前帧号可以与预期的当前帧号进行比较。在其他布置中，暗像素可以被配置为具有预定的转换增益级别模式。输出信号可以与“黄金”图像或其它预定输出信号组进行比较。

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