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1. 发明授权

US07239352B2 Method of reading out signals from higher and lower photosensitivity regions of a solid-state image pickup apparatus 失效
标题翻译：从固态摄像装置的较高和较低光敏度区域读出信号的方法
公开(公告)号：US07239352B2
公开(公告)日：2007-07-03
申请号：US10671448
申请日：2003-09-29
申请人： Kazuya Oda , Hirokazu Kobayashi
发明人： Kazuya Oda , Hirokazu Kobayashi
IPC分类号： H04N5/238 , H04N3/14 , H04N5/335 , H04N9/04 , H04N9/083 , H01L31/062 , H01L27/00
CPC分类号： H04N5/2355 , H04N5/235 , H04N5/2351 , H04N5/35563
摘要： In a signal reading method for a solid-state image pickup apparatus, an estimated photometric value is calculated at the time of preliminary image pickup and compared with a threshold value set beforehand. If the estimated photometric value is smaller than the threshold value, it is then determined that a scene to be pickup up has a narrower dynamic range to execute control reading out signal charges from the main and subregions of the individual photosensitive cell while mixing them together. If the estimated photometric value is not smaller than the threshold value, the signal charges of the main and subregions are read out independently of each other.
摘要翻译：在固态图像拾取装置的信号读取方法中，在预备图像拾取时计算估计的测光值，并将其与预先设定的阈值进行比较。如果估计的测光值小于阈值，则确定要拾取的场景具有较窄的动态范围，以在将各个感光单元的主要和次要区域混合在一起的同时执行控制读出信号电荷。如果估计的测光值不小于阈值，则主要和次要区域的信号电荷彼此独立地读出。

2. 发明授权

US07019279B2 Solid-state image sensor with the optical center of microlenses shifted from the center of photo-sensors for increasing the convergence ratio 有权
标题翻译：具有微透镜的光学中心的固态图像传感器从光传感器的中心偏移以增加收敛比
公开(公告)号：US07019279B2
公开(公告)日：2006-03-28
申请号：US10698393
申请日：2003-11-03
申请人： Kazuya Oda , Hirokazu Kobayashi
发明人： Kazuya Oda , Hirokazu Kobayashi
IPC分类号： H01J3/14 , H01J40/14 , H01J5/16
CPC分类号： H01L27/14643 , H01L27/14603 , H01L27/14627
摘要： A solid-state image sensor includes a photosensitive array capturing an optical image representative of a desired scene. The photosensitive array includes photo-sensors arranged in a direction of row and a direction of column, and microlenses each causing incident light to converge to the corresponding photo-sensor. Each photo-sensor corresponds to a particular pixel included in the photosensitive array. Each photo-sensor is made up of a higher- and a lower-sensitivity photosensitive cell for photoelectrically transducing incident light to electric signal charges. Each photo-sensor includes a primary and a secondary photosensitive cell respectively having higher-sensitivity and lower-sensitivity for photoelectrically transducing the incident light. Each microlens has its optical center shifted from the center of the corresponding photo-sensor toward the center of the photosensitive array.
摘要翻译：固态图像传感器包括捕获表示期望场景的光学图像的光敏阵列。光敏阵列包括沿行方向和列方向布置的光传感器，以及每个引起入射光会聚到相应光传感器的微透镜。每个光电传感器对应于光敏阵列中包括的特定像素。每个光电传感器由较高和较低灵敏度的光敏电池组成，用于光电转换入电信号电荷的入射光。每个光电传感器包括分别具有较高灵敏度和较低灵敏度的初级和次级光敏电池，用于光电转换入射光。每个微透镜的光学中心从相应的光电传感器的中心向着光敏阵列的中心移动。

3. 发明授权

US07245322B2 Imaging apparatus 失效
标题翻译：成像设备
公开(公告)号：US07245322B2
公开(公告)日：2007-07-17
申请号：US10757531
申请日：2004-01-15
申请人： Kazuya Oda , Hirokazu Kobayashi
发明人： Kazuya Oda , Hirokazu Kobayashi
IPC分类号： H04N9/64 , H04N5/16
CPC分类号： H04N5/35563 , H04N5/361 , H04N5/367 , H04N5/372
摘要： The invention provides an imaging apparatus in which when a difference in sensitivity between two photosensitive elements having different sensitivities is used to achieve a wide dynamic range, a correction amount of a low sensitivity portion is determined from information of a high sensitivity portion to reduce a burden of an internal process.A black level correction value of a dependent photosensitive pixel is calculated by multiplying a black level correction value of a main photosensitive pixel by the ratio of the cell area of the main photosensitive pixel to the cell area of the dependent photosensitive pixel. It is not necessary to perform control to capture an imaging signal from the dependent photosensitive pixel belonging to an OB portion for determining the black level correction value of the dependent photosensitive pixel. Furthermore, if control to capture the imaging signal from the dependent photosensitive pixel is not performed in the OB portion, a processing system may be stopped during such a period. If the processing system is stopped during the period, contribution can be made to reduction in process and power consumption in an overall digital camera.
摘要翻译：本发明提供了一种成像装置，其中当使用具有不同灵敏度的两个感光元件之间的灵敏度差异来实现宽动态范围时，根据高灵敏度部分的信息确定低灵敏度部分的校正量以减轻负担的内部过程。通过将主感光像素的黑电平校正值乘以主感光像素的单元面积与从属光敏像素的单元面积的比率来计算依赖光敏像素的黑电平校正值。不需要进行控制，从属于OB部分的相关感光像素拍摄成像信号，以确定相关光敏像素的黑电平校正值。此外，如果在OB部分中没有执行从依赖感光像素捕获成像信号的控制，则可能在这样的时间段期间停止处理系统。如果处理系统在此期间停止，则可以在整个数字照相机中减少处理和功耗。

4. 发明授权

US07855742B2 Solid state imaging device with horizontal transfer paths and a driving method therefor 失效
标题翻译：具有水平传送路径的固态成像装置及其驱动方法
公开(公告)号：US07855742B2
公开(公告)日：2010-12-21
申请号：US11727139
申请日：2007-03-23
申请人： Hiroyuki Oshima , Hirokazu Kobayashi , Kazuya Oda , Katsumi Ikeda
发明人： Hiroyuki Oshima , Hirokazu Kobayashi , Kazuya Oda , Katsumi Ikeda
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/37213 , H01L27/14621 , H01L27/14843 , H01L27/14868 , H04N5/3653 , H04N5/3728 , H04N9/045
摘要： In a solid state imaging device, signal charges are branched to be output to in the form of one or plural outputs. At a horizontal transfer speed not lower than a predetermined transfer speed, the imaging device transfers signal charges of color attributes classified by a branching section, to plural horizontal transfer paths, where the signal charges are converted into analog voltage signals, which will be output synchronously. At a horizontal transfer speed lower than the predetermined transfer speed, the analog voltage signal converted is output from, e.g. the horizontal transfer path which has been selected. Output amplifiers arranged on the horizontal transfer paths are differentiated in sensitivities in detecting signal charges, depending on color attributes of signal charges supplied, and output the analog voltage signals.
摘要翻译：在固态成像装置中，信号电荷被分支输出到一个或多个输出的形式。在不低于预定传送速度的水平传送速度下，成像装置将由分支部分分类的颜色属性的信号电荷传送到多个水平传送路径，其中信号电荷被转换为将被同步输出的模拟电压信号。在低于预定传送速度的水平传送速度下，转换的模拟电压信号从例如，已选择的水平传送路径。布置在水平传输路径上的输出放大器根据所提供的信号电荷的颜色属性，在检测信号电荷的灵敏度上有差异，并输出模拟电压信号。

5. 发明授权

US07518644B2 Electronic camera having pixel-row thinning mode 失效
标题翻译：具有像素行稀疏模式的电子摄像机
公开(公告)号：US07518644B2
公开(公告)日：2009-04-14
申请号：US11489602
申请日：2006-07-20
申请人： Hirokazu Kobayashi , Kazuya Oda
发明人： Hirokazu Kobayashi , Kazuya Oda
IPC分类号： H04N9/64 , H04N5/217
CPC分类号： H04N5/343 , H04N5/3452 , H04N5/367 , H04N5/372
摘要： Pixel rows of an image sensor are respectively provided with a vertical transfer path. A charge detecting amplifier is disposed at one end of each of the vertical transfer paths. When a through image is outputted and when a moving-image mode is executed, a horizontal scanning circuit sequentially selects the charge detecting amplifiers on the basis of a thinning pattern, which is determined every imaging sensitivity, to output an image signal in which the pixel rows are thinned. As the thinning pattern, there are an odd-row pattern for selecting only the odd pixel rows from among the whole pixel rows, and an even-row pattern for selecting only the even pixel rows therefrom. The thinning pattern is selected in accordance with the imaging sensitivity so as to minimize line-shaped defects caused by the vertical transfer paths.
摘要翻译：图像传感器的像素行分别设置有垂直传送路径。电荷检测放大器设置在每个垂直传送路径的一端。当输出直通图像并且当执行运动图像模式时，水平扫描电路基于每个成像灵敏度确定的稀疏图案顺序地选择电荷检测放大器，以输出图像信号，其中像素行变薄。作为稀疏图案，存在用于仅从整个像素行中选择奇数像素行的奇数行图案和用于仅从其中选择偶数像素行的偶数行图案。根据成像灵敏度选择细化图案，以便最小化由垂直传送路径引起的线状缺陷。

6. 发明授权

US07349024B2 Imaging apparatus in which type of light source is discriminated to correctly adjust white balance 有权
标题翻译：识别光源类型以正确调节白平衡的成像设备
公开(公告)号：US07349024B2
公开(公告)日：2008-03-25
申请号：US10807300
申请日：2004-03-24
申请人： Kazuya Oda , Takeshi Misawa , Hirokazu Kobayashi
发明人： Kazuya Oda , Takeshi Misawa , Hirokazu Kobayashi
IPC分类号： H04N5/222
CPC分类号： H04N1/48
摘要： Each pixel has a main pixel and a sub pixel. Each pixel has a color filter. The color filters are respectively arranged above a main photosensitive portion of the main pixel and a sub photosensitive portion of the sub pixel. The thickness of the color filters above the main and sub photosensitive portions is different from each other, so that spectral sensitivity characteristics of the main and sub photosensitive portions are respectively different. In a WB gain determiner, the type of illumination light source is judged by comparing image signals taken out from the main and sub pixels. The WB gain determiner determines a gain correction coefficient based on the type of illumination light source. The gain correction in each RGB color is performed according to the gain correction coefficient to adjust the white balance.
摘要翻译：每个像素具有主像素和子像素。每个像素都有一个滤色镜。滤色器分别设置在主像素的主感光部分和子像素的副感光部分的上方。主感光部分和副光敏部分之上的滤色器的厚度彼此不同，使得主感光部分和次光敏部分的光谱灵敏度特性分别不同。在WB增益确定器中，通过比较从主像素和子像素取出的图像信号来判断照明光源的类型。 WB增益确定器基于照明光源的类型来确定增益校正系数。根据增益校正系数执行每个RGB颜色的增益校正，以调整白平衡。

7. 发明授权

US07432962B2 Dynamic range broadening method for a solid-state image sensor including photosensitive cells each having a main and a subregion 有权
标题翻译：包括各自具有主要和次要区域的光敏单元的固态图像传感器的动态范围展宽方法
公开(公告)号：US07432962B2
公开(公告)日：2008-10-07
申请号：US10671802
申请日：2003-09-29
申请人： Kazuya Oda , Hirokazu Kobayashi
发明人： Kazuya Oda , Hirokazu Kobayashi
IPC分类号： H04N5/235 , H04N5/335
CPC分类号： H04N5/235
摘要： A method of broadening a dynamic range is applied to a solid-state image sensor of the type including photodiodes each being divided into a main and a subregion different in photosensitivity from each other. While the quantity of light to be incident on a photodiode is reduced, a signal charge is read out only from the main region of the photodiode. The signal charge is digitized and then written to two image memories. Digital signals thus stored in the image memories are respectively amplified by white balance gain circuits with different gains. The resulting digital signals are combined by an image synthesizer. The method can therefore broaden the dynamic range of the image sensor by using only the main regions of the photodiodes.
摘要翻译：扩展动态范围的方法被应用于包括光电二极管的类型的固态图像传感器，每个光电二极管被分成彼此之间的光敏度不同的主要和次要区域。虽然入射到光电二极管上的光的量减少，但仅从光电二极管的主要区域读出信号电荷。信号电荷被数字化，然后写入两个图像存储器。这样存储在图像存储器中的数字信号分别由具有不同增益的白平衡增益电路放大。所得数字信号由图像合成器组合。因此，该方法可以通过仅使用光电二极管的主要区域来扩大图像传感器的动态范围。

8. 发明申请

US20080180554A1 Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information 有权
标题翻译：用于校正固态图像传感器的缺陷像素的方法和成像装置，以及用于产生像素信息的方法
公开(公告)号：US20080180554A1
公开(公告)日：2008-07-31
申请号：US11905273
申请日：2007-09-28
申请人： Hirokazu Kobayashi , Kazuya Oda , Takeshi Misawa
发明人： Hirokazu Kobayashi , Kazuya Oda , Takeshi Misawa
IPC分类号： H04N9/64
CPC分类号： H04N5/367
摘要： In a solid-state image sensor in which a large number of pixel cells each comprised of a combination of a main photosensitive pixel having a relatively large area and a subsidiary photosensitive pixel having a relatively small area are arranged, if the subsidiary photosensitive pixel has a defect for any pixel cell, division photometry data during AE processing is read, and the defective pixel is replaced with a value obtained by dividing the output value of the main photosensitive pixel at the same position by a sensitivity ratio only for a section for which it is determined that the main photosensitive pixel is not saturated. Thus, the pixel value of a defective pixel can be accurately corrected without causing a reduction in resolution sensitivity compared to a conventional method of correcting a defective pixel using surrounding pixel information.
摘要翻译：在固态图像传感器中，其中布置了大量像素单元，每个像素单元均由具有相对较大面积的主要光敏像素的组合和具有相对较小面积的辅助感光像素的组合组成，如果辅助光敏像素具有读取AE处理期间的任何像素单元的缺陷，分割测光数据，并将缺陷像素替换为通过将相同位置处的主感光像素的输出值除以灵敏度比而获得的值，确定主感光像素不饱和。因此，与使用周围像素信息校正缺陷像素的传统方法相比，可以精确地校正不良像素的像素值，而不会导致分辨率灵敏度的降低。

9. 发明授权

US07336301B2 Solid-state image sensor and a method of adjusting output of photosensitive cells adaptively to the sensitivity 失效
标题翻译：固态图像传感器和自适应灵敏度调节感光单元的输出的方法
公开(公告)号：US07336301B2
公开(公告)日：2008-02-26
申请号：US10642625
申请日：2003-08-19
申请人： Kazuya Oda , Hirokazu Kobayashi
发明人： Kazuya Oda , Hirokazu Kobayashi
IPC分类号： H04N5/235 , H04N9/083 , H04N5/238
CPC分类号： H04N5/2355 , H04N5/2353 , H04N5/35563
摘要： A solid-state image pickup apparatus includes a solid-state image sensor in which photosensitive cells, each consisting of a main and a subregion and including an optical opening, are arranged in a bidimensional array. A system controller adjusts the exposure times of the main and subregions in dependence upon the direction and amount of a sensitivity error in the vertical direction relative to an accurate optical opening. A timing signal generator feeds a timing signal to a driver in response to a control signal output from the system controller. The driver feeds, in response to the timing signal and a control signal also output from the system controller, the image sensor with a drive signal relating to the opening/closing of a mechanical shutter, thereby causing the above exposure times to end at the same time. Therefore, signal charges output from the main and subregions are free from errors.
摘要翻译：固体摄像装置包括固态图像传感器，其中以二维阵列布置各自由主分区和子区域组成并包括光学开口的光敏单元。系统控制器根据相对于精确光学开口的垂直方向上的灵敏度误差的方向和量来调节主和次级区域的曝光时间。定时信号发生器响应于从系统控制器输出的控制信号向定时信号馈送定时信号。驱动器响应于定时信号和还从系统控制器输出的控制信号，馈送具有与机械快门的打开/关闭相关的驱动信号的图像传感器，从而使上述曝光时间在同一时间结束时间。因此，从主区域和次区域输出的信号电荷没有错误。

10. 发明申请

US20070030373A1 Electronic camera having pixel-row thinning mode 失效
标题翻译：具有像素行稀疏模式的电子摄像机
公开(公告)号：US20070030373A1
公开(公告)日：2007-02-08
申请号：US11489602
申请日：2006-07-20
申请人： Hirokazu Kobayashi , Kazuya Oda
发明人： Hirokazu Kobayashi , Kazuya Oda
IPC分类号： H04N5/335
CPC分类号： H04N5/343 , H04N5/3452 , H04N5/367 , H04N5/372
摘要： Pixel rows of an image sensor are respectively provided with a vertical transfer path. A charge detecting amplifier is disposed at one end of each of the vertical transfer paths. When a through image is outputted and when a moving-image mode is executed, a horizontal scanning circuit sequentially selects the charge detecting amplifiers on the basis of a thinning pattern, which is determined every imaging sensitivity, to output an image signal in which the pixel rows are thinned. As the thinning pattern, there are an odd-row pattern for selecting only the odd pixel rows from among the whole pixel rows, and an even-row pattern for selecting only the even pixel rows therefrom. The thinning pattern is selected in accordance with the imaging sensitivity so as to minimize line-shaped defects caused by the vertical transfer paths.
摘要翻译：图像传感器的像素行分别设置有垂直传送路径。电荷检测放大器设置在每个垂直传送路径的一端。当输出直通图像并且当执行运动图像模式时，水平扫描电路基于每个成像灵敏度确定的稀疏图案顺序地选择电荷检测放大器，以输出图像信号，其中像素行变薄。作为稀疏图案，存在用于仅从整个像素行中选择奇数像素行的奇数行图案和用于仅从其中选择偶数像素行的偶数行图案。根据成像灵敏度选择细化图案，以便最小化由垂直传送路径引起的线状缺陷。

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