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公开(公告)号：US20190166321A1
公开(公告)日：2019-05-30
申请号：US16197270
申请日：2018-11-20
Applicant: Rambus Inc.
Inventor： John Ladd , Michael Guidash , Craig M. Smith , Thomas Vogelsang , Jay Endsley , Michael T. Ching , James E. Harris
Abstract: A sequence of control voltage levels are applied to a control signal line capacitively coupled to a floating diffusion node of a pixel to sequentially adjust a voltage level of the floating diffusion node. A pixel output signal representative of the voltage level of the floating diffusion node is compared with a reference voltage to identify a first control voltage level of the sequence of control voltage levels for which the voltage level of the floating diffusion node exceeds the reference voltage.
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Patent Agency Ranking
公开(公告)号：US09432597B2
公开(公告)日：2016-08-30
申请号：US14807794
申请日：2015-07-23
Applicant: Rambus Inc.
Inventor： Michael Guidash , Thomas Vogelsang , Jay Endsley , James E. Harris , Craig M. Smith , John Ladd , Michael T. Ching
IPC: H04N5/365 , H04N5/378 , H04N5/357 , H04N5/3745 , H04N5/355
CPC classification number: H04N5/3655 , H04N5/355 , H04N5/357 , H04N5/3575 , H04N5/3651 , H04N5/3698 , H04N5/3745 , H04N5/37455 , H04N5/378
Abstract: An integrated-circuit image sensor generates, as constituent reference voltages of a first voltage ramp, a first sequence of linearly related reference voltages followed by a second sequence of exponentially related reference voltages. The integrated-circuit image sensor compares the constituent reference voltages of the first voltage ramp with a first signal level representative of photocharge integrated within a pixel of the image sensor to identify a first reference voltage of the constituent reference voltages that is exceeded by the first signal level.
Abstract translation: 作为第一电压斜坡的组成参考电压的集成电路图像传感器产生第二线性相关参考电压序列，随后是第二指数相关参考电压序列。 集成电路图像传感器将第一电压斜坡的构成参考电压与表示在图像传感器的像素内集成的光电荷的第一信号电平进行比较，以识别由第一信号超过的构成参考电压的第一参考电压 水平。
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公开(公告)号：US20160028974A1
公开(公告)日：2016-01-28
申请号：US14807794
申请日：2015-07-23
Applicant: Rambus Inc.
Inventor： Michael Guidash , Thomas Vogelsang , Jay Endsley , James E. Harris , Craig M. Smith , John Ladd , Michael T. Ching
CPC classification number: H04N5/3655 , H04N5/355 , H04N5/357 , H04N5/3575 , H04N5/3651 , H04N5/3698 , H04N5/3745 , H04N5/37455 , H04N5/378
Abstract: An integrated-circuit image sensor generates, as constituent reference voltages of a first voltage ramp, a first sequence of linearly related reference voltages followed by a second sequence of exponentially related reference voltages. The integrated-circuit image sensor compares the constituent reference voltages of the first voltage ramp with a first signal level representative of photocharge integrated within a pixel of the image sensor to identify a first reference voltage of the constituent reference voltages that is exceeded by the first signal level
Abstract translation: 作为第一电压斜坡的组成参考电压的集成电路图像传感器产生第二线性相关参考电压序列，随后是第二指数相关参考电压序列。 集成电路图像传感器将第一电压斜坡的构成参考电压与表示在图像传感器的像素内集成的光电荷的第一信号电平进行比较，以识别由第一信号超过的构成参考电压的第一参考电压 水平
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公开(公告)号：US10652493B2
公开(公告)日：2020-05-12
申请号：US16197270
申请日：2018-11-20
Applicant: Rambus Inc.
Inventor： John Ladd , Michael Guidash , Craig M. Smith , Thomas Vogelsang , Jay Endsley , Michael T. Ching , James E. Harris
Abstract: A sequence of control voltage levels are applied to a control signal line capacitively coupled to a floating diffusion node of a pixel to sequentially adjust a voltage level of the floating diffusion node. A pixel output signal representative of the voltage level of the floating diffusion node is compared with a reference voltage to identify a first control voltage level of the sequence of control voltage levels for which the voltage level of the floating diffusion node exceeds the reference voltage.
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公开(公告)号：US10165209B2
公开(公告)日：2018-12-25
申请号：US15328207
申请日：2015-07-23
Applicant: Rambus Inc.
Inventor： John Ladd , Michael Guidash , Craig M. Smith , Thomas Vogelsang , Jay Endsley , Michael T. Ching , James E. Harris
Abstract: A sequence of control voltage levels are applied to a control signal line capacitively coupled to a floating diffusion node of a pixel to sequentially adjust a voltage level of the floating diffusion node. A pixel output signal representative of the voltage level of the floating diffusion node is compared with a reference voltage to identify a first control voltage level of the sequence of control voltage levels for which the voltage level of the floating diffusion node exceeds the reference voltage.
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公开(公告)号：US09894304B1
公开(公告)日：2018-02-13
申请号：US14827838
申请日：2015-08-17
Applicant: Rambus Inc.
Inventor： Craig M. Smith , Michael Guidash , Thomas Vogelsang , Jay Endsley , Michael T. Ching
CPC classification number: G06T3/4015 , H04N5/35554 , H04N5/35581 , H04N5/378 , H04N9/045 , H04N2209/046
Abstract: Photocharge is integrated within a first plurality of pixels of an integrated-circuit image sensor during a first exposure interval. A read-out signal is output from each pixel of the first plurality of pixels upon conclusion of the first exposure interval, each read-out signal indicating a respective level of photocharge integrated within the corresponding pixel during the first exposure interval. Photocharge is also integrated within a second plurality of pixels during a second exposure interval that transpires concurrently with the first exposure interval and has a duration not more than half the duration of the first exposure interval. A read-out signal is output from each pixel of the second plurality of pixels at least twice with respect to the second exposure interval, with each such read-out signal indicating a respective level of photocharge integrated within the corresponding pixel during at least a portion of the second exposure interval.
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