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公开(公告)号：US08952311B2
公开(公告)日：2015-02-10
申请号：US13454745
申请日：2012-04-24
CPC分类号： H04N5/3658 , H04N5/367 , H04N5/3742
摘要： Electronic devices may include image sensors having image pixel arrays with image pixels arranged in pixel rows and pixel columns. Each pixel column may be coupled to an active and an inactive current supply circuit. Each active current supply circuit may form a portion of a current mirror circuit that includes a common current source and a common input transistor. Each active current supply circuit may include a mirror transistor for mirroring current that flows through the common input transistor and a permanently enabled enabling transistor for activating that mirror transistor. Mirrored current that flows through a particular active mirror transistor may be supplied to image pixels in the pixel column associated with that particular mirror transistor. Each inactive current supply circuit may include a mirror transistor coupled to the input transistor and a permanently disabled enabling transistor.
摘要翻译： 电子设备可以包括具有图像像素阵列的图像传感器，图像像素排列成像素行和像素列。 每个像素列可以耦合到有源和无源电流供应电路。 每个有源电流供应电路可以形成包括公共电流源和公共输入晶体管的电流镜电路的一部分。 每个有源电流电路可以包括用于镜像流过公共输入晶体管的电流的反射镜晶体管和用于激活该镜像晶体管的永久使能的使能晶体管。 可以将流过特定有源镜像晶体管的镜像电流提供给与该特定镜像晶体管相关联的像素列中的图像像素。 每个非活动电流供应电路可以包括耦合到输入晶体管的镜像晶体管和永久禁用的使能晶体管。
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公开(公告)号：US08780241B2
公开(公告)日：2014-07-15
申请号：US13039444
申请日：2011-03-03
CPC分类号： H04N5/3532 , H04N5/3535
摘要： Apparatus and a method for performing neutral density filtering in a digital camera. The camera includes a pixel array having rows and columns of pixels. The pixels in the array may be reset and read with variable timing between the reset operation and the read operation. The timing between the reset and read operations is controlled to implement a neutral density filtering operation.
摘要翻译： 用于在数码相机中执行中性密度滤波的装置和方法。 相机包括具有行和列像素的像素阵列。 阵列中的像素可以在复位操作和读取操作之间以可变的定时被复位和读取。 控制复位和读取操作之间的时序以实现中性密度滤波操作。
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3.发明授权Method and apparatus for controlling anti-blooming timing to reduce effects of dark current 有权控制防起霜定时以减少暗电流影响的方法和装置公开(公告)号：US07763837B2
公开(公告)日：2010-07-27
申请号：US11942771
申请日：2007-11-20
IPC分类号： H01L27/00
CPC分类号： H04N5/374 , H01L27/14656 , H04N5/3591 , H04N5/3592 , H04N5/361
摘要： An electronic imager includes a plurality of pixels having photosensors for accumulating charge corresponding to individual pixel values of a sensed image. Each of the pixels includes an anti-blooming function which allows charge in excess of a predetermined amount to be drained from the photosensor thus reducing the charge from the pixel that migrates to adjacent pixels. The imager also includes circuitry which controls the anti-blooming function in response to image intensity to reduce dark current in the imager caused by the anti-blooming function.
摘要翻译： 电子成像器包括具有用于累积对应于感测图像的各个像素值的电荷的光敏元件的多个像素。 每个像素包括防起霜功能，其允许超过预定量的电荷从光电传感器中排出，从而减少从迁移到相邻像素的像素的电荷。 成像器还包括响应于图像强度来控制防起霜功能的电路，以减少由防起霜功能引起的成像器中的暗电流。
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4.发明授权Method and apparatus for controlling anti-blooming timing to reduce effects of dark current 有权控制防起霜定时以减少暗电流影响的方法和装置公开(公告)号：US07897904B2
公开(公告)日：2011-03-01
申请号：US12403698
申请日：2009-03-13
IPC分类号： H01L27/00
CPC分类号： H04N5/374 , H01L27/14656 , H04N5/3591 , H04N5/3592 , H04N5/361
摘要： An electronic imager includes a plurality of pixels having photosensors for accumulating charge corresponding to individual pixel values of a sensed image. Each of the pixels includes an anti-blooming function which allows charge in excess of a predetermined amount to be drained from the photosensor thus reducing the charge from the pixel that migrates to adjacent pixels. The imager also includes circuitry which controls the anti-blooming function in response to image intensity to reduce dark current in the imager caused by the anti-blooming function.
摘要翻译： 电子成像器包括具有用于累积对应于感测图像的各个像素值的电荷的光敏元件的多个像素。 每个像素包括防起霜功能，其允许超过预定量的电荷从光电传感器中排出，从而减少从迁移到相邻像素的像素的电荷。 成像器还包括响应于图像强度来控制防起霜功能的电路，以减少由防起霜功能引起的成像器中的暗电流。
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5.发明申请METHOD AND APPARATUS FOR CONTROLLING ANTI-BLOOMING TIMING TO REDUCE EFFECTS OF DARK CURRENT 有权用于控制抗真菌时间的方法和装置，以减少暗电流的影响公开(公告)号：US20090127436A1
公开(公告)日：2009-05-21
申请号：US11942771
申请日：2007-11-20
IPC分类号： H01L27/146
CPC分类号： H04N5/374 , H01L27/14656 , H04N5/3591 , H04N5/3592 , H04N5/361
摘要： An electronic imager includes a plurality of pixels having photosensors for accumulating charge corresponding to individual pixel values of a sensed image. Each of the pixels includes an anti-blooming function which allows charge in excess of a predetermined amount to be drained from the photosensor thus reducing the charge from the pixel that migrates to adjacent pixels. The imager also includes circuitry which controls the anti-blooming function in response to image intensity to reduce dark current in the imager caused by the anti-blooming function.
摘要翻译： 电子成像器包括具有用于累积对应于感测图像的各个像素值的电荷的光敏元件的多个像素。 每个像素包括防起霜功能，其允许超过预定量的电荷从光电传感器中排出，从而减少从迁移到相邻像素的像素的电荷。 成像器还包括响应于图像强度来控制防起霜功能的电路，以减少由防起霜功能引起的成像器中的暗电流。
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公开(公告)号：US20090002508A1
公开(公告)日：2009-01-01
申请号：US11819977
申请日：2007-06-29
摘要： Methods and apparatuses for dark current reduction by adjustment of electrical characteristics of transfer gates in pixels within an imaging sensor based on image comparisons.
摘要翻译： 基于图像比较，通过调整成像传感器内的像素中的传输门的电特性来减少暗电流的方法和装置。
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公开(公告)号：US08742309B2
公开(公告)日：2014-06-03
申请号：US13188389
申请日：2011-07-21
IPC分类号： H01L27/00
CPC分类号： H01L27/14623 , G01C3/32 , G01S3/782 , H01L27/14605 , H01L27/14621 , H04N13/204
摘要： An imager may include depth sensing pixels that provide an asymmetrical angular response to incident light. The depth sensing pixels may each include a substrate region formed from a photosensitive portion and a non-photosensitive portion. The depth sensing pixels may include mechanisms that prevent regions of the substrate from receiving incident light. Depth sensing pixel pairs may be formed from depth sensing pixels that have different asymmetrical angular responses. Each of the depth sensing pixel pairs may effectively divide the corresponding imaging lens into separate portions. Depth information for each depth sensing pixel pair may be determined based on the difference between output signals of the depth sensing pixels of that depth sensing pixel pair. The imager may be formed from various combinations of depth sensing pixel pairs and color sensing pixel pairs arranged in a Bayer pattern or other desired patterns.
摘要翻译： 成像器可以包括提供对入射光的不对称角度响应的深度感测像素。 深度感测像素可以各自包括由感光部分和非感光部分形成的衬底区域。 深度感测像素可以包括防止衬底的区域接收入射光的机构。 深度感测像素对可以由具有不同不对称角响应的深度感测像素形成。 每个深度感测像素对可以有效地将相应的成像透镜分成分离的部分。 可以基于深度感测像素对的深度感测像素的输出信号之间的差来确定每个深度感测像素对的深度信息。 成像器可以由深度感测像素对和以拜耳图案或其他期望图案布置的颜色感测像素对的各种组合形成。
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公开(公告)号：US20120188415A1
公开(公告)日：2012-07-26
申请号：US13039444
申请日：2011-03-03
IPC分类号： H04N5/217
CPC分类号： H04N5/3532 , H04N5/3535
摘要： Apparatus and a method for performing neutral density filtering in a digital camera. The camera includes a pixel array having rows and columns of pixels. The pixels in the array may be reset and read with variable timing between the reset operation and the read operation. The timing between the reset and read operations is controlled to implement a neutral density filtering operation.
摘要翻译： 用于在数码相机中执行中性密度滤波的装置和方法。 相机包括具有行和列像素的像素阵列。 阵列中的像素可以在复位操作和读取操作之间以可变的定时被复位和读取。 控制复位和读取操作之间的时序以实现中性密度滤波操作。
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公开(公告)号：US20130020467A1
公开(公告)日：2013-01-24
申请号：US13454745
申请日：2012-04-24
IPC分类号： H01L27/146 , H01L27/085
CPC分类号： H04N5/3658 , H04N5/367 , H04N5/3742
摘要： Electronic devices may include image sensors having image pixel arrays with image pixels arranged in pixel rows and pixel columns. Each pixel column may be coupled to an active and an inactive current supply circuit. Each active current supply circuit may form a portion of a current mirror circuit that includes a common current source and a common input transistor. Each active current supply circuit may include a mirror transistor for mirroring current that flows through the common input transistor and a permanently enabled enabling transistor for activating that mirror transistor. Mirrored current that flows through a particular active mirror transistor may be supplied to image pixels in the pixel column associated with that particular mirror transistor. Each inactive current supply circuit may include a mirror transistor coupled to the input transistor and a permanently disabled enabling transistor.
摘要翻译： 电子设备可以包括具有图像像素阵列的图像传感器，图像像素排列成像素行和像素列。 每个像素列可以耦合到有源和无源电流供应电路。 每个有源电流供应电路可以形成包括公共电流源和公共输入晶体管的电流镜电路的一部分。 每个有源电流电路可以包括用于镜像流过公共输入晶体管的电流的反射镜晶体管和用于激活该镜像晶体管的永久使能的使能晶体管。 可以将流过特定有源镜像晶体管的镜像电流提供给与该特定镜像晶体管相关联的像素列中的图像像素。 每个非活动电流供应电路可以包括耦合到输入晶体管的镜像晶体管和永久禁用的使能晶体管。
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10.发明申请公开(公告)号：US20090207284A1
公开(公告)日：2009-08-20
申请号：US12403698
申请日：2009-03-13
CPC分类号： H04N5/374 , H01L27/14656 , H04N5/3591 , H04N5/3592 , H04N5/361
摘要： An electronic imager includes a plurality of pixels having photosensors for accumulating charge corresponding to individual pixel values of a sensed image. Each of the pixels includes an anti-blooming function which allows charge in excess of a predetermined amount to be drained from the photosensor thus reducing the charge from the pixel that migrates to adjacent pixels. The imager also includes circuitry which controls the anti-blooming function in response to image intensity to reduce dark current in the imager caused by the anti-blooming function.
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