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公开(公告)号：US11641523B2
公开(公告)日：2023-05-02
申请号：US17452512
申请日：2021-10-27
Applicant: STMicroelectronics (Grenoble 2) SAS , STMicroelectronics SA
Inventor： Arnaud Bourge , Tarek Lule , Gregory Roffet
IPC: H04N5/235 , H04N5/355 , H04N5/353 , H01L27/146
Abstract: An image sensor includes a plurality of pixels, where each of the plurality of pixels includes a photodiode. The image sensor is configured to capture images of a scene exposed with a flickering light source by for each of the plurality of pixels, acquiring a value representative of a light level at a corresponding pixel by gradually varying a value of sensitivity of the corresponding pixel.
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公开(公告)号：US11184555B2
公开(公告)日：2021-11-23
申请号：US16692638
申请日：2019-11-22
Applicant: STMicroelectronics SA , STMicroelectronics (Grenoble 2) SAS
Inventor： Arnaud Bourge , Tarek Lule , Gregory Roffet
IPC: H04N5/235 , H04N5/355 , H04N5/353 , H01L27/146
Abstract: An image sensor includes a plurality of pixels, where each of the plurality of pixels includes a photodiode. The image sensor is configured to capture images of a scene exposed with a flickering light source by for each of the plurality of pixels, acquiring a value representative of a light level at a corresponding pixel by gradually varying a value of sensitivity of the corresponding pixel.
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公开(公告)号：US20170118424A1
公开(公告)日：2017-04-27
申请号：US15051545
申请日：2016-02-23
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Tarek Lule , Jérôme Chossat , Benoît Deschamps
IPC: H04N5/353 , H01L27/146 , H04N5/355
CPC classification number: H04N5/3535 , H01L27/14605 , H01L27/14607 , H01L27/14612 , H01L27/14627 , H01L27/14636 , H01L27/14641 , H01L27/14645 , H04N5/35554 , H04N5/35572 , H04N5/35581 , H04N5/3696 , H04N5/37457 , H04N9/045
Abstract: The present disclosure relates to an image sensor including: a plurality of pixels, each including a first photodiode coupled to a first capacitive charge storage node by a first transistor, and a second photodiode coupled to a second capacitive charge storage node by a second transistor; and a control circuit configured so as to, during a phase of acquisition of a value representative of the illumination level of a pixel: acquire a first output value representative of the illumination level received by the first photodiode during a first uninterrupted integration period; and acquire a second output value representative of the illumination level received by the second photodiode during a second integration period divided into a plurality of separate sub-periods.
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4.发明授权公开(公告)号：US10939094B2
公开(公告)日：2021-03-02
申请号：US16809926
申请日：2020-03-05
Inventor： Lookah Chua , Jansen Reyes Duey , Tarek Lule , Mathieu Thivin
IPC: H04N17/00 , H04N5/369 , H04N5/3745 , B60W30/09 , G08G1/16
Abstract: An electronic device includes a voltage divider producing different reference voltages. Dummy pixels each are formed by a transfer gate transistor having a first conduction terminal coupled to a floating diffusion node, a second conduction terminal, and a control node coupled to a first gate signal line, a transmission gate coupled between one of the plurality of taps and the second conduction terminal of the transfer gate transistor, a floating diffusion capacitor coupled between the floating diffusion node and ground, a transistor having a first conduction terminal coupled to the floating diffusion node, a second conduction terminal, and a control terminal coupled to a second gate signal line, and a reset transistor having a first conduction terminal coupled to the upper reference voltage, a second conduction terminal coupled to the second conduction terminal of the transistor, and a control terminal coupled to a reset signal line.
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公开(公告)号：US20130155239A1
公开(公告)日：2013-06-20
申请号：US13710981
申请日：2012-12-11
Inventor： John Kevin Moore , Matthew Purcell , Graeme Storm , Tarek Lule
IPC: H04N5/335
CPC classification number: H04N5/3535 , H01L27/146 , H01L27/14603 , H01L27/14621 , H01L27/148 , H04N5/335 , H04N5/369 , H04N5/3745 , H04N9/045
Abstract: An image sensor having improved dynamic range includes a signal that is read out for a selection of pixels which act as a calibration to govern the choice of exposure levels to be applied to the rest of the array. In this way, the sensor is operable to adapt to variations in scene intensity. The pixels in the array are vertically and horizontally addressed so as to enable accounted for small areas of intensity variation across an imaged scene.
Abstract translation: 具有改进的动态范围的图像传感器包括读出用于选择像素的信号，该像素用作校准以控制要应用于阵列的其余部分的曝光电平的选择。 以这种方式，传感器可操作以适应场景强度的变化。 阵列中的像素被垂直和水平地寻址，使得能够占据成像场景的强度变化的小区域。
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Patent Agency Ranking
公开(公告)号：US09807334B1
公开(公告)日：2017-10-31
申请号：US15492139
申请日：2017-04-20
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Nicolas Moeneclaey , Tarek Lule , Alexis Marcellin
CPC classification number: H04N5/378 , H03M1/00 , H03M1/12 , H03M1/56 , H04N3/155 , H04N5/2173 , H04N5/335
Abstract: A device for conversion of an analog signal into a digital signal includes a clock signal generator and a ramp generator configured for delivering a rising voltage ramp. A comparator is configured for comparing the value of the analog signal and the value of the voltage ramp and for generating a comparison signal taking a first logical value when the two values are equal. A signal generator is configured for generating a counter signal equal to the inverse of the clock signal if the comparison signal takes its first value while the clock signal is in the high state, or a counter signal equal to the clock signal if the clock signal is in the low state. A counter is configured for counting the number of edges of the counter signal.
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公开(公告)号：US11258977B2
公开(公告)日：2022-02-22
申请号：US16703681
申请日：2019-12-04
Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS
Inventor： Tarek Lule
IPC: H04N5/378 , H01L27/146 , H04N5/3745 , H04N5/353
Abstract: The present disclosure relates to a readout circuit of a pixel array comprising: a first analog to digital converter coupled to a first column line of the pixel array and configured to convert a reference voltage level and a captured voltage level of a first pixel based on a first conversion gain of the first pixel; and a second analog to digital converter coupled to the first column line of the pixel array and configured to convert a reference voltage level and a captured voltage level of the first pixel based on a second conversion gain of the first pixel, the first and second conversion gains being different from each other.
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公开(公告)号：US10063796B2
公开(公告)日：2018-08-28
申请号：US15088641
申请日：2016-04-01
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Tarek Lule , Benoit Deschamps , Jerome Chossat
CPC classification number: H04N5/3535 , H04N5/35581 , H04N5/372 , H04N5/37452 , H04N5/378
Abstract: An electronic device disclosed herein includes a photodiode, and a plurality of storage components each configured to independently sample and hold charges from the photodiode during each of a plurality of integration periods without discharging the held charge between successive integration periods of the plurality thereof. Each storage component accumulates the charges from the photodiode for a given time window during each integration period, with the given time window for each storage component being different than the given time window for each other storage component. Readout circuitry is configured to transfer the charges from each storage component to a readout node in a respective read period for that storage component. The photodiodes and storage components are not configured to be reset between successive time windows during each integration period.
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公开(公告)号：US10009558B2
公开(公告)日：2018-06-26
申请号：US15051545
申请日：2016-02-23
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Tarek Lule , Jérôme Chossat , Benoît Deschamps
IPC: H04N3/14 , H04N5/335 , H04N5/353 , H04N5/355 , H01L27/146
CPC classification number: H04N5/3535 , H01L27/14605 , H01L27/14607 , H01L27/14612 , H01L27/14627 , H01L27/14636 , H01L27/14641 , H01L27/14645 , H04N5/35554 , H04N5/35572 , H04N5/35581 , H04N5/3696 , H04N5/37457 , H04N9/045
Abstract: The present disclosure relates to an image sensor including: a plurality of pixels, each including a first photodiode coupled to a first capacitive charge storage node by a first transistor, and a second photodiode coupled to a second capacitive charge storage node by a second transistor; and a control circuit configured so as to, during a phase of acquisition of a value representative of the illumination level of a pixel: acquire a first output value representative of the illumination level received by the first photodiode during a first uninterrupted integration period; and acquire a second output value representative of the illumination level received by the second photodiode during a second integration period divided into a plurality of separate sub-periods.
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10.发明申请公开(公告)号：US20170289473A1
公开(公告)日：2017-10-05
申请号：US15088641
申请日：2016-04-01
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Tarek Lule , Benoit Deschamps , Jerome Chossat
CPC classification number: H04N5/3535 , H04N5/35581 , H04N5/372 , H04N5/37452 , H04N5/378
Abstract: An electronic device disclosed herein includes a photodiode, and a plurality of storage components each configured to independently sample and hold charges from the photodiode during each of a plurality of integration periods without discharging the held charge between successive integration periods of the plurality thereof. Each storage component accumulates the charges from the photodiode for a given time window during each integration period, with the given time window for each storage component being different than the given time window for each other storage component. Readout circuitry is configured to transfer the charges from each storage component to a readout node in a respective read period for that storage component. The photodiodes and storage components are not configured to be reset between successive time windows during each integration period.
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