Extended dynamic range in color imagers
    1.
    发明授权
    Extended dynamic range in color imagers 有权
    色彩成像器的扩展动态范围

    公开(公告)号:US08723995B2

    公开(公告)日:2014-05-13

    申请号:US10859797

    申请日:2004-06-03

    摘要: A digital color imager providing an extended luminance range, an improved color implementation and enabling a method for an easy transformation into another color space having luminance as a component has been achieved. Key of the invention is the addition of white pixels to red, green and blue pixels. These white pixels have either an extended dynamic rang as described by U.S. patent (U.S. Pat. No. 6,441,852 to Levine et al.) or have a larger size than the red, green, or blue pixels used. The output of said white pixels can be directly used for the luminance values Y of the destination color space. Therefore only the color values and have to be calculated from the RGB values, leading to an easier and faster calculation. As an example chosen by the inventor the conversion to YCbCr color space has been shown in detail.

    摘要翻译: 已经实现了提供扩展亮度范围的数字彩色成像器,改进的颜色实现以及使得能够容易地转换成具有亮度作为组件的另一颜色空间的方法。 本发明的关键是将白色像素添加到红色,绿色和蓝色像素。 这些白色像素具有如美国专利(Levine等人的美国专利号6,441,852)所述的扩展动态范围,或具有比使用的红色,绿色或蓝色像素更大的尺寸。 所述白色像素的输出可以直接用于目标色彩空间的亮度Y。 因此,只有颜色值,必须从RGB值计算,导致更容易和更快速的计算。 作为发明人选择的示例,已经详细显示了向YCbCr颜色空间的转换。

    Extended dynamic range in color imagers
    2.
    发明申请
    Extended dynamic range in color imagers 有权
    色彩成像器的扩展动态范围

    公开(公告)号:US20050248667A1

    公开(公告)日:2005-11-10

    申请号:US10859797

    申请日:2004-06-03

    摘要: A digital color imager providing an extended luminance range, an improved color implementation and enabling a method for an easy transformation into another color space having luminance as a component has been achieved. Key of the invention is the addition of white pixels to red, green and blue pixels. These white pixels have either an extended dynamic rang as described by U.S. patent (U.S. Pat. No. 6,441,852 to Levine et al.) or have a larger size than the red, green, or blue pixels used. The output of said white pixels can be directly used for the luminance values Y of the destination color space. Therefore only the color values and have to be calculated from the RGB values, leading to an easier and faster calculation. As an example chosen by the inventor the conversion to YCbCr color space has been shown in detail.

    摘要翻译: 已经实现了提供扩展亮度范围的数字彩色成像器,改进的颜色实现以及使得能够容易地转换成具有亮度作为组件的另一颜色空间的方法。 本发明的关键是将白色像素添加到红色,绿色和蓝色像素。 这些白色像素具有如美国专利(Levine等人的美国专利号6,441,852)所述的扩展动态范围,或具有比使用的红色,绿色或蓝色像素更大的尺寸。 所述白色像素的输出可以直接用于目标色彩空间的亮度Y。 因此,只有颜色值,必须从RGB值计算,导致更容易和更快速的计算。 作为发明人选择的示例,已经详细显示了向YCbCr颜色空间的转换。

    SIMULTANEOUS GLOBAL SHUTTER AND CORRELATED DOUBLE SAMPLING READ OUT IN MULTIPLE PHOTOSENSOR PIXELS
    4.
    发明申请
    SIMULTANEOUS GLOBAL SHUTTER AND CORRELATED DOUBLE SAMPLING READ OUT IN MULTIPLE PHOTOSENSOR PIXELS 有权
    同时全球快门和相关双重采样读取多个光电子像素

    公开(公告)号:US20120154648A1

    公开(公告)日:2012-06-21

    申请号:US13403862

    申请日:2012-02-23

    申请人: Taner Dosluoglu

    发明人: Taner Dosluoglu

    IPC分类号: H04N9/04

    摘要: An apparatus controls operation of an array of color multiple sensor pixel image sensors to provide a global shuttering for one half of the color multiple sensor pixel image sensors and a rolling shuttering for all color multiple sensor pixel image sensors of the array. The apparatus includes a row control circuit and a column clamp, sample, and hold circuit. The row control circuit generates the necessary reset control signals, transfer gating signals, and row selecting signals for providing the global shuttering and the rolling shuttering color multiple sensor pixel image sensors. The column clamp, sample and hold circuit generates an output signal representative of a number of photons impinging upon each color multiple sensor pixel image sensor of the row of selected color multiple sensor pixel image sensors. The control apparatus further includes an analog to digital converter which converts the read out signal to a digital image signal.

    摘要翻译: 一种设备控制彩色多传感器像素图像传感器阵列的操作,以为彩色多传感器像素图像传感器的一半提供全局快门,以及用于阵列的所有彩色多传感器像素图像传感器的滚动快门。 该装置包括行控制电路和列钳,采样保持电路。 行控制电路产生必要的复位控制信号,传送选通信号和行选择信号,以提供全局快门和滚动快门彩色多传感器像素图像传感器。 柱夹,采样和保持电路产生表示入射到所选择的彩色多传感器像素图像传感器行中的每个彩色多传感器像素图像传感器的光子数量的输出信号。 控制装置还包括将读出的信号转换为数字图像信号的模数转换器。

    Column averaging/row binning circuit for image sensor resolution adjustment in lower intensity light environment
    5.
    发明授权
    Column averaging/row binning circuit for image sensor resolution adjustment in lower intensity light environment 有权
    列平均/行分类电路,用于在较低强度的光环境中进行图像传感器分辨率调整

    公开(公告)号:US07515183B2

    公开(公告)日:2009-04-07

    申请号:US10997383

    申请日:2004-11-24

    IPC分类号: H04N5/217 H04N3/14 H04N5/335

    CPC分类号: H04N9/045 H04N5/347 H04N5/374

    摘要: A photo-sensor image resolution adjustment apparatus is in communication with an array of image photo-sensors that are organized in columns and rows and have multiple sensor types arranged in a pattern such as a Bayer pattern to detect light. The photo-sensor image resolution adjustment apparatus has a photo-sensor array decimation circuit to partition the array of image photo-sensors into a plurality of sub-groups. A column averaging circuit averages the light conversion electrical signals from common color photo-sensors within the sub-groups. A row averaging circuit averages the common color adjacent light conversion electrical signals from color adjacent rows within the sub-groups in high light intensity condition. In low light conditions, a row binning circuit integrates the common color adjacent light conversion electrical signals from color adjacent rows within the sub-groups.

    摘要翻译: 光传感器图像分辨率调节装置与以列和行组织的图像光传感器阵列通信,并且具有以诸如Bayer图案的图案排列以检测光的多个传感器类型。 光传感器图像分辨率调节装置具有光传感器阵列抽取电路,以将图像光传感器阵列分割成多个子组。 列平均电路对子组内常用彩色光电传感器的光转换电信号进行平均。 行平均电路在高光强度条件下对来自子组内的颜色相邻行的相邻光转换电信号的常用颜色进行平均。 在低光条件下,行分组电路将来自子组内的颜色相邻行的相邻光转换电信号的公共颜色相集成。

    CMOS pixel with dual gate PMOS
    6.
    发明授权
    CMOS pixel with dual gate PMOS 有权
    具有双栅极PMOS的CMOS像素

    公开(公告)号:US07336530B2

    公开(公告)日:2008-02-26

    申请号:US11508354

    申请日:2006-08-23

    IPC分类号: G11C11/34 H01L21/8238

    摘要: A pixel circuit with a dual gate PMOS is formed by forming two P+ regions in an N− well. The N− well is in a P− type substrate. The two P+ regions form the source and drain of a PMOS transistor. The PMOS transistors formed within the N− well will not affect the collection of the photo-generated charge as long as the source and drain potentials of the PMOS transistors are set at a lower potential than the N− well potential so that they remain reverse biased with respect to the N− well. One of the P+ regions used to form the source and drain regions can be used to reset the pixel after it has been read in preparation for the next cycle of accumulating photo-generated charge. The N− well forms a second gate for the dual gate PMOS transistor since the potential of the N− well 12 affects the conductivity of the channel of the PMOS transistor. The addition of two NMOS transistors enables the readout signal to be stored at the gate of one of the NMOS transistors thereby making a snapshot imager possible. The circuit can be expanded to form two PMOS transistors sharing a common drain in the N− well.

    摘要翻译: 具有双栅极PMOS的像素电路通过在N阱中形成两个P + +区形成。 N<> - 孔是在P + - SUP型衬底中。 两个P + SUP区域形成PMOS晶体管的源极和漏极。 形成在N阱内的PMOS晶体管不会影响光电荷的收集,只要PMOS晶体管的源极和漏极电位被设置在比N - 阱电位,使得它们相对于N 阱保持反向偏置。 用于形成源极和漏极区域的一个P + SUP区域可用于在读取该像素以准备下一个累积光电荷循环之后复位像素。 由于NΩ阱12的电位影响PMOS晶体管的沟道的导电性,因此N阱构成了双栅极PMOS晶体管的第二栅极。 添加两个NMOS晶体管使读出信号能够存储在NMOS晶体管之一的栅极处,从而使快照成像器成为可能。 该电路可以扩展以形成在N阱中共享一个共同漏极的两个PMOS晶体管。

    CCD imager constructed with CMOS fabrication techniques and back illuminated imager with improved light capture
    7.
    发明授权
    CCD imager constructed with CMOS fabrication techniques and back illuminated imager with improved light capture 有权
    采用CMOS制造技术构建的CCD成像仪和具有改进的光捕获功能的背光照明成像仪

    公开(公告)号:US07265397B1

    公开(公告)日:2007-09-04

    申请号:US09942835

    申请日:2001-08-30

    IPC分类号: H01L27/148 H01L29/768

    摘要: An optical sensor circuit for generating signals corresponding to received photoelectrons is formed on a single monolithic substrate and includes a charge coupled device (CCD) array. The array is formed of a plurality of pixels constructed by a standard CMOS process. Each pixel is formed of at least one charge well of minority carriers and a gate oxide layer overlaying the at least one charge well. At least two spaced gate electrodes corresponding in position to the at least two charge wells overlays the gate oxide layer. The space between adjacent electrodes defines a gap to transfer charge between adjacent ones of at the least two spaced gate electrodes and the gap is stabilized. A back-illuminated imager is also described in which photocarriers are diverted from devices integrated with the pixel by a PN junction formed in the pixel structure.

    摘要翻译: 用于产生与接收的光电子相对应的信号的光学传感器电路形成在单个单片基板上,并且包括电荷耦合器件(CCD)阵列。 阵列由通过标准CMOS工艺构成的多个像素形成。 每个像素由少数载流子的至少一个电荷阱和覆盖至少一个电荷阱的栅极氧化物层形成。 至少两个对应于位于至少两个电荷阱的位置的间隔开的栅极覆盖栅极氧化物层。 相邻电极之间的空间限定了在至少两个间隔开的栅极电极之间的相邻电极之间传输电荷的间隙,并且间隙被稳定。 还描述了背照光成像器,其中光载流子通过形成在像素结构中的PN结从与像素集成的器件转移。

    Red/green pixel with simultaneous exposure and improved MTF
    8.
    发明授权
    Red/green pixel with simultaneous exposure and improved MTF 有权
    红色/绿色像素同时曝光和改进的MTF

    公开(公告)号:US07176544B2

    公开(公告)日:2007-02-13

    申请号:US10813864

    申请日:2004-03-31

    IPC分类号: H01L31/00

    摘要: A pixel for detecting red and green light is a single pixel is described. The pixel comprises a deep N well formed in a P type epitaxial substrate. The pixel comprises a deep N well formed in a P type epitaxial substrate. A number of P wells, which are used as the sensor nodes, are formed in the deep N well. The use of these P wells as the sensor nodes improves the modulation transfer function. The depth of the deep N well is about equal to the depth of hole electron pairs generated by red light in silicon. The depth of the P wells is about equal to the depth of hole electron pairs generated by green light in silicon. A red/green signal is determined at each P well by determining the potentials between each of the P wells and the deep N well after a charge integration cycle with the P wells and the deep N well isolated. A green signal is determined at each P well by determining the potentials between each of the P wells and the deep N well after a charge integration cycle with the P wells isolated and the deep N well held at a fixed positive voltage. A red signal at each P well is determined by subtracting the green signal at that P well from the red/green signal at that P well. The invention can take advantage of the fact that the human perception of a green signal is green, the human perception of a red signal is red, and the human perception of a red/green signal is red. The invention also works if P regions are substituted for N regions and N regions substituted for P regions.

    摘要翻译: 用于检测红色和绿色光的像素是单个像素。 像素包括在P型外延衬底中形成的深N阱。 像素包括在P型外延衬底中形成的深N阱。 用作传感器节点的多个P阱形成在深N阱中。 使用这些P孔作为传感器节点改善了调制传递函数。 深N阱的深度大约等于由硅中的红光产生的空穴电子对的深度。 P阱的深度大约等于由硅中的绿光产生的空穴电子对的深度。 通过在与P阱和深N阱分离的电荷积分循环之后,通过确定每个P阱和深N阱之间的电位,在每个P阱处确定红色/绿色信号。 通过在分离P阱并且将N阱保持在固定的正电压的电荷积分周期之后,通过确定每个P阱和深N阱之间的电位,在每个P阱处确定绿色信号。 通过从该P阱处的红色/绿色信号中减去该P阱处的绿色信号来确定每个P阱处的红色信号。 本发明可以利用人类对绿色信号的感知是绿色的,红色信号的人感知是红色的,并且人类对红/绿信号的感知是红色的。 如果P区域代替N个区域并取代P区域的N个区域,本发明也起作用。

    Image sensor having resolution adjustment employing an analog column averaging/row averaging for high intensity light or row binning for low intensity light

    公开(公告)号:US20060113459A1

    公开(公告)日:2006-06-01

    申请号:US10999875

    申请日:2004-11-30

    IPC分类号: H01L27/00

    CPC分类号: H04N9/045 H04N5/347

    摘要: A photo-sensor image resolution adjustment apparatus is in communication with an array of image photo-sensors that are organized in columns and rows and have multiple sensor types arranged in a pattern such as a Bayer pattern to detect light. The photo-sensor image resolution adjustment apparatus has a photo-sensor array decimation circuit to partition the array of image photo-sensors into a plurality of sub-groups. A column averaging circuit averages the light conversion electrical signals from common color photo-sensors within the sub-groups. A row averaging circuit averages the common color adjacent light conversion electrical signals from color adjacent rows within the sub-groups in high light intensity condition. In low light conditions, a row binning circuit integrates the common color adjacent light conversion electrical signals from color adjacent rows within the sub-groups.

    CMOS pixel with dual gate PMOS
    10.
    发明申请

    公开(公告)号:US20050156214A1

    公开(公告)日:2005-07-21

    申请号:US11068365

    申请日:2005-02-28

    摘要: A pixel circuit with a dual gate PMOS is formed by forming two P+ regions in an N− well. The N− well is in a P− type substrate. The two P+ regions form the source and drain of a PMOS transistor. The PMOS transistors formed within the N− well will not affect the collection of the photo-generated charge as long as the source and drain potentials of the PMOS transistors are set at a lower potential than the N− well potential so that they remain reverse biased with respect to the N− well. One of the P+ regions used to form the source and drain regions can be used to reset the pixel after it has been read in preparation for the next cycle of accumulating photo-generated charge. The N− well forms a second gate for the dual gate PMOS transistor since the potential of the N− well 12 affects the conductivity of the channel of the PMOS transistor. The addition of two NMOS transistors enables the readout signal to be stored at the gate of one of the NMOS transistors thereby making a snapshot imager possible. The circuit can be expanded to form two PMOS transistors sharing a common drain in the N− well.