公开(公告)号：US20150070547A1

公开(公告)日：2015-03-12

申请号：US14024123

申请日：2013-09-11

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Zheng Yang ,  Shijing Yao

IPC: H04N5/369 ,  H04N5/374

CPC classification number: H04N5/374 ,  H04N5/37457

Abstract: A method of reading image data from an image sensor includes accumulating image charges in photosensitive elements of an array of pixel cells. The accumulated image charges are transferred to corresponding transistors in multi-phase transfer channels that are coupled to corresponding columns of the pixel array. Multi-phase transfer signals are generated. Each set of the multi-phase transfer signals includes a plurality of control signals that are out-of-phase with one another and are coupled to control respective transistors in the multi-phase transfer channels. The accumulated image charges from a first variable number of pixel cells of a selected column are output in response to the multi-phase transfer signals. The accumulated image charges from a second variable number of pixel cells of another selected column are output in response to the multi-phase transfer signals.

Abstract translation: 从图像传感器读取图像数据的方法包括在像素单元阵列的感光元件中累积图像电荷。 累积的图像电荷被传送到耦合到像素阵列的相应列的多相传输通道中的相应晶体管。 产生多相传输信号。 每组多相传输信号包括彼此不同相的多个控制信号，并被耦合以控制多相传输信道中的各个晶体管。 响应于多相传输信号输出来自所选列的第一可变数目的像素单元的累积图像电荷。 响应于多相传输信号输出来自另一所选列的第二可变数目的像素单元的累积图像电荷。