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1. 发明授权

US07263215B2 Circuit and method for correction of defect pixel 有权
标题翻译：电路和缺陷像素校正方法
公开(公告)号：US07263215B2
公开(公告)日：2007-08-28
申请号：US10626539
申请日：2003-07-25
申请人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
发明人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
IPC分类号： G06K9/00 , H04N9/64
CPC分类号： G06T5/005 , G06T2207/10004 , H04N5/367
摘要： A semiconductor integrated circuit includes a check unit which compares a value of a pixel of interest with values of neighboring pixels contained in an image signal supplied from an image sensor, and determines based on the comparison whether the pixel of interest is defective, and a defect correcting unit which corrects the value of the pixel of interest by using values of surrounding pixels in response to the determination by the check unit that the pixel of interest is defective.
摘要翻译：半导体集成电路包括检查单元，其将感兴趣像素的值与包含在从图像传感器提供的图像信号中的相邻像素的值进行比较，并且基于比较来确定关注像素是否有缺陷，以及缺陷校正单元，其响应于由检查单元确定感兴趣的像素有缺陷，通过使用周围像素的值来校正感兴趣像素的值。

2. 发明申请

US20080252756A1 Circuit and method for correction of defect pixel 有权
标题翻译：电路和缺陷像素校正方法
公开(公告)号：US20080252756A1
公开(公告)日：2008-10-16
申请号：US11892842
申请日：2007-08-28
申请人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
发明人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
IPC分类号： H04N1/409
CPC分类号： G06T5/005 , G06T2207/10004 , H04N5/367
摘要： A semiconductor integrated circuit includes a check unit which compares a value of a pixel of interest with values of neighboring pixels contained in an image signal supplied from an image sensor, and determines based on the comparison whether the pixel of interest is defective, and a defect correcting unit which corrects the value of the pixel of interest by using values of surrounding pixels in response to the determination by the check unit that the pixel of interest is defective.
摘要翻译：半导体集成电路包括检查单元，其将感兴趣像素的值与包含在从图像传感器提供的图像信号中的相邻像素的值进行比较，并且基于比较来确定关注像素是否有缺陷，以及缺陷校正单元，其响应于由检查单元确定感兴趣的像素有缺陷，通过使用周围像素的值来校正感兴趣像素的值。

3. 发明授权

US07715617B2 Circuit and method for correction of defect pixel 有权
标题翻译：电路和缺陷像素校正方法
公开(公告)号：US07715617B2
公开(公告)日：2010-05-11
申请号：US11892842
申请日：2007-08-28
申请人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
发明人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
IPC分类号： G06K9/00 , H04N9/64
CPC分类号： G06T5/005 , G06T2207/10004 , H04N5/367
摘要： A semiconductor integrated circuit includes a check unit which compares a value of a pixel of interest with values of neighboring pixels contained in an image signal supplied from an image sensor, and determines based on the comparison whether the pixel of interest is defective, and a defect correcting unit which corrects the value of the pixel of interest by using values of surrounding pixels in response to the determination by the check unit that the pixel of interest is defective.
摘要翻译：半导体集成电路包括检查单元，其将感兴趣像素的值与包含在从图像传感器提供的图像信号中的相邻像素的值进行比较，并且基于比较来确定关注像素是否有缺陷，以及缺陷校正单元，其响应于由检查单元确定感兴趣的像素有缺陷，通过使用周围像素的值来校正感兴趣像素的值。

4. 发明授权

US07352397B2 Circuit and method for contour enhancement 有权
标题翻译：轮廓增强的电路和方法
公开(公告)号：US07352397B2
公开(公告)日：2008-04-01
申请号：US10626726
申请日：2003-07-25
申请人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
发明人： Shigeru Nishio , Hiroshi Daiku , Asao Kokubo
IPC分类号： H04N5/208 , H04N5/228 , H04N5/217 , H04N5/21 , G06K9/40 , G06K15/00
CPC分类号： H04N5/208 , H04N5/142 , H04N9/045
摘要： A semiconductor integrated circuit includes a differential calculating unit which obtains a differential between a value of a pixel of interest and values of surrounding pixels contained in an image signal supplied from an image sensor, a dead-zone generating unit which defines a predetermined range of pixel values, and a comparison unit which checks whether the differential falls outside the predetermined range, wherein contour enhancement is applied to the pixel of interest in response to a determination by the comparison unit that the differential falls outside the predetermined range.
摘要翻译：半导体集成电路包括：差分计算单元，其获得感兴趣像素的值和包含在从图像传感器提供的图像信号中的周围像素的值之间的差;定影区域生成单元，其限定像素的预定范围值，以及比较单元，其检查差分是否落在预定范围之外，其中响应于比较单元的确定差异落在预定范围之外，对感兴趣的像素应用轮廓增强。

5. 发明申请

US20050285961A1 Reduction of effect of image processing on image sensor 失效
标题翻译：降低图像处理对图像传感器的影响
公开(公告)号：US20050285961A1
公开(公告)日：2005-12-29
申请号：US10968044
申请日：2004-10-20
申请人： Asao Kokubo , Hiroshi Daiku , Jun Funakoshi , Yutaka Takeda , Norihiro Yoshida
发明人： Asao Kokubo , Hiroshi Daiku , Jun Funakoshi , Yutaka Takeda , Norihiro Yoshida
IPC分类号： G06F1/04 , G06F1/06 , G06F1/08 , H04N3/14 , H04N5/335 , H04N5/341 , H04N5/357 , H04N5/363 , H04N5/376 , H04N9/64
CPC分类号： H04N5/3765 , H04N5/3577
摘要： A solid-state imaging device includes an image sensor configured to output image data generated by image sensing elements together with a timing signal, and an image processing unit configured to output the image data supplied from the image sensor having undergone predetermined signal processing a predetermined delay time after a timing indicated by the timing signal, the image sensor further configured to make the timing signal indicate a first timing that is at least the processing delay time earlier than a second timing indicative of a start of a valid period of the image data, and to output dummy data from the first timing to the start of the valid period of the image data.
摘要翻译：一种固态成像装置，包括图像传感器，被配置为输出由图像检测元件生成的图像数据和定时信号;以及图像处理单元，被配置为输出从已经经过预定信号处理的图像传感器提供的图像数据，在由定时信号指示的定时之后的时间，图像传感器还被配置为使得定时信号指示比指示图像数据的有效时段的开始的第二定时更早的处理延迟时间的第一定时，并将伪数据从第一定时输出到图像数据的有效期的开始。

6. 发明授权

US07489347B2 Method and circuit for detecting flicker noise 失效
标题翻译：检测闪烁噪声的方法和电路
公开(公告)号：US07489347B2
公开(公告)日：2009-02-10
申请号：US10943933
申请日：2004-09-20
申请人： Hiroshi Daiku , Asao Kokubo
发明人： Hiroshi Daiku , Asao Kokubo
IPC分类号： H04N9/73
CPC分类号： H04N5/2357 , H04N5/243 , H04N17/002
摘要： A flicker noise detecting method that shortens the time for detecting flicker noise. The method sets two of a plurality of horizontal lines forming a frame as average brightness calculation regions that are separated from each other by the predetermined number of the horizontal lines, calculates an average brightness of the two average brightness calculation regions for each of three frames, multiplies each average brightness by a product sum calculation coefficient, and adds the products to generate a sum and generate a detection signal of flicker noise based on the sum. The product sum calculation coefficient is obtained by plotting one cycle of a sine wave and one cycle of a cosine wave at intervals of π/3.
摘要翻译：一种闪烁噪声检测方法，可缩短检测闪烁噪声的时间。该方法将形成帧的多条水平线中的两条作为平均亮度计算区域彼此分开预定数量的水平线，计算三帧中的每一帧的两个平均亮度计算区域的平均亮度，将每个平均亮度乘以乘积和计算系数，并将乘积相加以产生和，并基于该和产生闪烁噪声的检测信号。乘积和计算系数通过以pi / 3的间隔绘制正弦波的一个周期和余弦波的一个周期来获得。

7. 发明申请

US20070075772A1 Semiconductor integrated apparatus and black level correction method for image sensor 有权
标题翻译：半导体集成装置和图像传感器黑电平校正方法
公开(公告)号：US20070075772A1
公开(公告)日：2007-04-05
申请号：US11360673
申请日：2006-02-24
申请人： Asao Kokubo , Hiroshi Daiku , Jun Funakoshi , Tsuyoshi Higuchi
发明人： Asao Kokubo , Hiroshi Daiku , Jun Funakoshi , Tsuyoshi Higuchi
IPC分类号： H03F3/04
CPC分类号： H04N5/361
摘要： The challenge of the present invention is to suppress a variation in brightness of an image and make a reference value of a black level converge at an appropriate value in a short time. Acondition judgment circuit judges whether or not a frame of an amount of change in gains of a variable gain amplifier being equal to or greater than a threshold continues for a predefined frames or more. If a frame of an amount of change in the gains being equal to or greater than the threshold continues for the predefined frames, a black level value of the current frame is set for new black level reference. If not continues for the predetermined number, the previous black level reference value is retained in lieu of correcting the black level.
摘要翻译：本发明的挑战是抑制图像的亮度变化，并使黑色电平的参考值在短时间内收敛于适当的值。条件判断电路判断可变增益放大器的增益变化量的帧是否等于或大于阈值持续预定义的帧或更多帧。如果对于预定义帧，增益等于或大于阈值的变化量的帧持续，则为新的黑色级别参考设置当前帧的黑色电平值。如果不继续预定数量，则保留先前的黑电平参考值以代替校正黑电平。

8. 发明申请

US20050206745A1 Method and circuit for detecting flicker noise 失效
标题翻译：检测闪烁噪声的方法和电路
公开(公告)号：US20050206745A1
公开(公告)日：2005-09-22
申请号：US10943933
申请日：2004-09-20
申请人： Hiroshi Daiku , Asao Kokubo
发明人： Hiroshi Daiku , Asao Kokubo
IPC分类号： H04N5/21 , H04N5/235 , H04N5/243 , H04N9/73 , H04N17/00 , H04N101/00
CPC分类号： H04N5/2357 , H04N5/243 , H04N17/002
摘要： A flicker noise detecting method that shortens the time for detecting flicker noise. The method sets two of a plurality of horizontal lines forming a frame as average brightness calculation regions that are separated from each other by the predetermined number of the horizontal lines, calculates an average brightness of the two average brightness calculation regions for each of three frames, multiplies each average brightness by a product sum calculation coefficient, and adds the products to generate a sum and generate a detection signal of flicker noise based on the sum. The product sum calculation coefficient is obtained by plotting one cycle of a sine wave and one cycle of a cosine wave at intervals of π/3.
摘要翻译：一种闪烁噪声检测方法，可缩短检测闪烁噪声的时间。该方法将形成帧的多条水平线中的两条作为平均亮度计算区域彼此分开预定数量的水平线，计算三帧中的每一帧的两个平均亮度计算区域的平均亮度，将每个平均亮度乘以乘积和计算系数，并将乘积相加以产生和，并基于该和产生闪烁噪声的检测信号。乘积和计算系数通过以pi / 3的间隔绘制正弦波的一个周期和余弦波的一个周期来获得。

9. 发明授权

US07920181B2 Semiconductor integrated apparatus and black level correction method for image sensor 有权
标题翻译：半导体集成装置和图像传感器黑电平校正方法
公开(公告)号：US07920181B2
公开(公告)日：2011-04-05
申请号：US11360673
申请日：2006-02-24
申请人： Asao Kokubo , Hiroshi Daiku , Jun Funakoshi , Tsuyoshi Higuchi
发明人： Asao Kokubo , Hiroshi Daiku , Jun Funakoshi , Tsuyoshi Higuchi
IPC分类号： H04N5/217
CPC分类号： H04N5/361
摘要： The challenge of the present invention is to suppress a variation in brightness of an image and make a reference value of a black level converge at an appropriate value in a short time. A condition judgment circuit judges whether or not a frame of an amount of change in gains of a variable gain amplifier being equal to or greater than a threshold continues for a predefined frames or more. If a frame of an amount of change in the gains being equal to or greater than the threshold continues for the predefined frames, a black level value of the current frame is set for new black level reference. If not continues for the predetermined number, the previous black level reference value is retained in lieu of correcting the black level.
摘要翻译：本发明的挑战是抑制图像的亮度变化，并使黑色电平的参考值在短时间内收敛于适当的值。条件判断电路判断可变增益放大器的增益变化量的帧是否等于或大于阈值持续预定义的帧或更多帧。如果对于预定义帧，增益等于或大于阈值的变化量的帧持续，则为新的黑色级别参考设置当前帧的黑色电平值。如果不继续预定数量，则保留先前的黑电平参考值以代替校正黑电平。

10. 发明授权

US07626616B2 Automatic gain control circuit with exposure control circuit 失效
标题翻译：带曝光控制电路的自动增益控制电路
公开(公告)号：US07626616B2
公开(公告)日：2009-12-01
申请号：US11488787
申请日：2006-07-19
申请人： Asao Kokubo , Hiroshi Daiku , Yutaka Takeda , Norihiro Yoshida
发明人： Asao Kokubo , Hiroshi Daiku , Yutaka Takeda , Norihiro Yoshida
IPC分类号： H04N5/235 , H04N3/14 , H04N5/335 , H04N5/238
CPC分类号： H04N5/2352 , H04N5/2351 , H04N5/3535
摘要： An automatic gain control circuit generates, based on comparison between an average brightness of brightness data output for each frame from an image sensor and a target brightness, an integration time adjustment signal for adjusting an integration time during which the image sensor is exposed, a gain adjustment signal for adjusting gain of an amplifier that amplifies an output signal of the image sensor, and a frame rate adjustment signal for changing a frame rate. The automatic gain control circuit includes an exposure control circuit for adjusting a blanking time of each frame and generating, as the frame rate adjustment signal, a maximum integration time adjustment signal for switching a maximum integration time of the image sensor.
摘要翻译：自动增益控制电路基于从图像传感器输出的每帧的亮度数据的平均亮度与目标亮度之间的比较，生成用于调整图像传感器曝光的积分时间的积分时间调整信号，增益用于调整放大图像传感器的输出信号的放大器的增益的调整信号，以及用于改变帧速率的帧速率调整信号。自动增益控制电路包括用于调整每帧的消隐时间的曝光控制电路，并且生成用于切换图像传感器的最大积分时间的最大积分时间调整信号作为帧速率调整信号。

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