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公开(公告)号：US09521337B1
公开(公告)日：2016-12-13
申请号：US13936985
申请日：2013-07-08
Applicant: Rambus Inc.
Inventor： Jie Shen , Yueyong Wang , James E. Harris
CPC classification number: H04N5/3355 , H04N5/2353 , H04N5/3535 , H04N5/355 , H04N5/3745 , H04N5/37455
Abstract: A self-resetting pixel having a memory element to record occurrence of an asynchronous pixel reset and circuitry to enable the memory element to be digitally sampled and cleared is disclosed, together with embodiments of digital image sensors formed by arrays or other collections of such pixels. By marking occurrence of asynchronous reset events within an in-pixel memory element that may be digitally oversampled during an exposure interval (i.e., repeatedly read-out in the form of, for example, a single-bit), it becomes possible to check for and detect asynchronous pixel reset events frequently and efficiently.
Abstract translation: 公开了具有用于记录异步像素复位的存储元件以及使存储器元件能够被数字采样和清除的电路的自复位像素，以及由这些像素的阵列或其他集合形成的数字图像传感器的实施例。 通过标记可能在曝光间隔期间被数字过采样的像素内存储元件内的异步复位事件的出现（例如，以例如单位形式重复读出），可以检查 并频繁且高效地检测异步像素复位事件。
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公开(公告)号：US20140313387A1
公开(公告)日：2014-10-23
申请号：US14355814
申请日：2012-11-08
Applicant: RAMBUS INC.
Inventor： Thomas Vogelsang , David Geoffrey Stork , Jie Shen , Yueyong Wang , Marko Aleksic
IPC: H04N5/353 , H04N5/3745 , H04N5/369
CPC classification number: H04N5/353 , H04N5/3355 , H04N5/3696 , H04N5/37455 , H04N5/37457
Abstract: In an integrated-circuit image sensor, binary sample values are read out from an array of pixels after successive sampling intervals that collectively span an image exposure interval and include at least two sampling intervals of unequal duration. Each pixel of the array is conditionally reset after each of the successive sampling intervals according to whether the pixel yields a binary sample in a first state or a second state.
Abstract translation: 在集成电路图像传感器中，在连续的采样间隔之后从像素阵列中读出二进制采样值，该采样间隔共同跨越图像曝光间隔并且包括至少两个不等长度的采样间隔。 根据该像素是否产生处于第一状态或第二状态的二进制样本，阵列的每个像素在每个连续采样间隔之后有条件地重置。
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