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    • 1. 发明申请
    • IMPROVED ULTRA-HIGH DYNAMIC RANGE PIXEL ARCHITECTURE
    • 改进的超高动态范围像素体系结构
    • WO2017147034A1
    • 2017-08-31
    • PCT/US2017/018622
    • 2017-02-21
    • BAE SYSTEMS IMAGING SOLUTIONS INC.
    • DO, Hung, T.MAGNANI, Alberto, M.MCGRATH, R., Daniel
    • H01L27/146H04N5/355H04N5/3745H04N5/378
    • G01J1/4228G01J1/46H01L27/14603H01L27/1461H01L27/14614H01L27/14636H01L27/14641H01L27/14643H04N5/35545H04N5/35563H04N5/3592H04N5/37457
    • A pixel comprises a high-response photodiode that collects photocharge, a first transfer gate that enables the charge to be transferred off the high-response photodiode, completely emptying it onto a low-response photodiode, a second transfer gate enables the charge to be transferred off the low-response photodiode, completely emptying it onto floating, diffusion, a third transfer gate for anti-blooming; the floating diffusion collects the transferred charge creating a change of voltage, a means of resetting the floating diffusion. A source-follower is modulated by the voltage on floating diffusion to control hit-line voltage and column-amplifier output. In examples, photocharge is integrated onto both the high-response photodiode and onto the low-response photodiode, The column readout circuit consists of a column amplifier that uses capacitors to set the amplifier gain, three sampling capacitors used as analog memory and for correlated double sampling, and a comparator that assists in providing the final output.
    • 像素包括收集光电荷的高响应光电二极管,使电荷能够从高响应光电二极管转移出来的第一传输门,将其完全清空到低响应光电二极管上,第二传输门 传输门能够将电荷从低响应光电二极管上传输出去,完全将其清空到浮动的扩散区,第三个传输门用于防止泛光; 浮动扩散收集转移的电荷,产生电压的变化,这是重置浮动扩散的手段。 源极跟随器由浮动扩散电压调制,以控制命中线电压和列放大器输出。 在例子中,光电荷被集成到高响应光电二极管和低响应光电二极管上。列读出电路由一个使用电容器设置放大器增益的列放大器,三个采样电容器用作模拟存储器和相关双 采样和帮助提供最终输出的比较器。
    • 7. 发明申请
    • PHOTODETECTOR ADAPTED TO PROVIDE ADDITIONAL COLOR INFORMATION
    • 光电探测器适应提供额外的彩色信息
    • WO2017210250A1
    • 2017-12-07
    • PCT/US2017/035122
    • 2017-05-31
    • BAE SYSTEMS IMAGING SOLUTIONS INC.
    • LADD, John, W.CROUCH, James, E.MAGNANI, Alberto, M.
    • H04N5/378H04N5/353H04N5/374G02B3/00
    • An apparatus for forming a color image of a scene and a method for utilizing that apparatus are disclosed. The apparatus includes a plurality of pixel sensors. Each pixel sensor includes a first photodetector includes first main photodiode and a first floating diffusion node. The first main photodiode is characterized by a first light conversion efficiency as a function of wavelength of a light signal incident thereon. The first floating diffusion node includes a parasitic photodiode characterized by a second light conversion efficiency as a function of the wavelength. The second light conversion efficiency is different from the first light conversion efficiency as a function of wavelength. A controller generates an intensity of light in each of a plurality of wavelength bands for the pixel sensor utilizing a measurement of the light signal by each of the first main photodiode and the first parasitic photodiode in that photodetector.
    • 公开了一种用于形成场景的彩色图像的设备和利用该设备的方法。 该装置包括多个像素传感器。 每个像素传感器包括第一光电检测器,第一光电检测器包括第一主光电二极管和第一浮动扩散节点。 第一主光电二极管的特征在于作为入射在其上的光信号的波长的函数的第一光转换效率。 第一浮动扩散节点包括由作为波长的函数的第二光转换效率表征的寄生光电二极管。 第二光转换效率与作为波长的函数的第一光转换效率不同。 控制器利用光检测器中的第一主光电二极管和第一寄生光电二极管中的每一个对光信号的测量结果来生成像素传感器的多个波长带中的每一个中的光的强度。