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公开(公告)号：US11686615B2
公开(公告)日：2023-06-27
申请号：US17787708
申请日：2020-12-07
Applicant: ams International AG
Inventor： Peter Bleim
CPC classification number: G01J1/44 , H03M1/1023 , G01J2001/446
Abstract: A method of measuring light intensity comprising exposing a photodiode to light to cause the photodiode to provide a current of a first polarity, supplying said current to an integrator to integrate said current to provide an integrated output voltage, and comparing the output voltage with a threshold voltage. Charge packages of opposite polarity are applied to said first polarity to reset the integration voltage prior to the start of the integration time. At the end of the integration time, the photodiode is disconnected from said integrator and a reference voltage coupled to the integrator input, whilst a resistance is coupled into the circuit until the comparison signal switches. The comparison signal is monitored to measure a time between the end of the integration time and the switching of the comparison signal to provide a measure of a residual voltage.
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22.发明授权公开(公告)号：US11670647B2
公开(公告)日：2023-06-06
申请号：US17590449
申请日：2022-02-01
Inventor： Keng-Yu Chou , Chun-Hao Chuang , Kazuaki Hashimoto , Wei-Chieh Chiang , Cheng Yu Huang , Wen-Hau Wu , Chih-Kung Chang
IPC: H01L27/146 , G01J1/02 , G01J1/44
CPC classification number: H01L27/14603 , G01J1/0271 , G01J1/44 , H01L27/1464 , H01L27/14623 , H01L27/14627 , H01L27/14649 , H01L27/14685 , H01L27/14689 , G01J2001/446
Abstract: Various embodiments of the present disclosure are directed towards an integrated chip (IC). The IC comprises a first phase detection autofocus (PDAF) photodetector and a second PDAF photodetector in a substrate. A first electromagnetic radiation (EMR) diffuser is disposed along a back-side of the substrate and within a perimeter of the first PDAF photodetector. The first EMR diffuser is spaced a first distance from a first side of the first PDAF photodetector and a second distance less than the first distance from a second side of the first PDAF photodetector. A second EMR diffuser is disposed along the back-side of the substrate and within a perimeter of the second PDAF photodetector. The second EMR diffuser is spaced a third distance from a first side of the second PDAF photodetector and a fourth distance less than the third distance from a second side of the second PDAF photodetector.
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公开(公告)号：US11665441B2
公开(公告)日：2023-05-30
申请号：US17260087
申请日：2019-07-19
Applicant: BRUKER NANO GMBH
Inventor： Daniel Radu Goran , Luca Bombelli , Paolo Trigilio
CPC classification number: H04N25/42 , G01J1/46 , H04N25/75 , G01J2001/446
Abstract: A pixelated sensor comprises a semiconductor substrate chip with a plurality of sensor pixels and a detector chip with a plurality of detector pixels. Each of the sensor pixels is configured as a photodiode and is electrically connected to an input node of one of the detector pixels. The detector pixels are further configured to convert and output the sensor input to an analog to digital converter. The detector chip further comprises first and second macropixels and a plurality of second macropixels, wherein each first macropixel is formed by subset of detector pixels switchably interconnected via a first conducting grid and wherein each second macropixel is formed by a subset of first macropixels switchably interconnected via a second conducting grid.
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24.发明申请公开(公告)号：US20180308997A1
公开(公告)日：2018-10-25
申请号：US15957340
申请日：2018-04-19
Inventor： Sushma Kotru , Harshan V. Nampoori , Vaishali Batra
IPC: H01L31/032 , H01L31/0465 , H01L31/09 , G01J1/44 , G01J1/42
CPC classification number: H01L31/032 , G01J1/0238 , G01J1/429 , G01J1/44 , G01J2001/0257 , G01J2001/4266 , G01J2001/446 , H01L31/0465 , H01L31/09
Abstract: The exemplified systems, and method thereof, includes PLZT thin film (Pb0.95La0.05Zr0.54Ti0.46O3) paired with a bottom metal and top transparent conductive oxide, that forms a capacitor structure with enhanced photocurrent and power conversion efficiency. The exemplified systems use metal electrode (platinum) as bottom electrode and a transparent oxide (Indium Tin Oxide—ITO) as the top electrode. In some embodiments, the capacitor structure are used in a solar cells, ultraviolet sensors, or UV indexing sensors. In some embodiments, the capacitor structure are energy generation or for medical diagnostics (e.g., for skin care application).
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公开(公告)号：US10018506B2
公开(公告)日：2018-07-10
申请号：US15475087
申请日：2017-03-30
Applicant: Peel Technologies, Inc.
Inventor： Samyeer Suresh Metrani
CPC classification number: G01J1/44 , A61B5/02433 , A61B5/14552 , G01J1/0295 , G01J1/4204 , G01J2001/446 , G01J2001/4473 , G01S7/484 , G01S7/4861 , G01S17/026 , G01S17/08
Abstract: A multifunctional infrared (IR) module is configured for multiple IR applications without an additional microcontroller to be integrated into a computing device and is able to utilize voltage control instead of current control. The multifunctional IR module includes an IR light emitting diode (LED), and an IR receiver (e.g., photodiode or phototransistor). In one embodiment, the multifunctional IR module includes a resistor that is connected to the cathode of the IR LED and the drain of a transistor, with the source of the transistor grounded. In some embodiments, the multifunctional IR module additionally includes a red LED. Various configurations of the multifunctional IR module are able to perform one or more of the following functions: IR in (receiving IR signals), IR out (generating IR signals), heart rate sensing, SpO2 (oxygen saturation) sensing, distance/proximity detection, gesture detection, LED control, and ambient light detection.
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Patent Agency Ranking
公开(公告)号：US10012531B2
公开(公告)日：2018-07-03
申请号：US15298820
申请日：2016-10-20
Inventor： David J. Schorr , Will R. Grigsby , Somit S. Mathur , Bill Alexander
CPC classification number: G01J1/0266 , G01J1/0295 , G01J1/4228 , G01J1/4257 , G01J1/44 , G01J2001/446 , G08B21/182
Abstract: Techniques are provided for estimating the direction of a laser source under non-uniform illumination conditions such as laser speckle. An example system may include a detector array comprising sensors configured to detect the amplitude of the received laser signal. The sensors are disposed on the array at unique orientation angles relative to each other. The sensor size is selected based on the speckle pattern of the laser signal such that the sensors are small enough to be uniformly illuminated by the laser signal in the presence of speckle. The system also includes an amplitude ratio calculation circuit configured to calculate ratios of the amplitudes between each of two sensors of one or more pairs of sensors. The system further includes an angle of arrival calculation circuit configured to estimate the direction of the source of the laser signal based on the calculated ratios and the orientation angles of the sensors.
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公开(公告)号：US20180113021A1
公开(公告)日：2018-04-26
申请号：US15298820
申请日：2016-10-20
Inventor： David J. Schorr , Will R. Grigsby , Somit S. Mathur , Bill Alexander
CPC classification number: G01J1/0266 , G01J1/0295 , G01J1/4228 , G01J1/4257 , G01J1/44 , G01J2001/446 , G08B21/182
Abstract: Techniques are provided for estimating the direction of a laser source under non-uniform illumination conditions such as laser speckle. An example system may include a detector array comprising sensors configured to detect the amplitude of the received laser signal. The sensors are disposed on the array at unique orientation angles relative to each other. The sensor size is selected based on the speckle pattern of the laser signal such that the sensors are small enough to be uniformly illuminated by the laser signal in the presence of speckle. The system also includes an amplitude ratio calculation circuit configured to calculate ratios of the amplitudes between each of two sensors of one or more pairs of sensors. The system further includes an angle of arrival calculation circuit configured to estimate the direction of the source of the laser signal based on the calculated ratios and the orientation angles of the sensors.
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公开(公告)号：US09922232B2
公开(公告)日：2018-03-20
申请号：US15116946
申请日：2015-10-12
Applicant: Shanghai Oxi Technology Co., Ltd
Inventor： Hong Zhu , Yan Ling , Yajie Zheng
IPC: G06K9/00 , H01L27/146 , G01J1/44
CPC classification number: G06K9/0004 , G01J1/44 , G01J2001/446 , H01L27/14625 , H01L27/14643 , H01L27/14685 , H01L27/14689
Abstract: A fingerprint imaging system and a method for forming the same. The system includes: a backlight system; a sensor array on the backlight system, wherein the sensor array comprises a plurality of photodiodes and a plurality of light transmission regions between adjacent photodiodes; and an anti-light-scattering layer formed on the sensor array, wherein the anti-light-scattering layer comprises a plurality of first portions and a plurality of second portions disposed between adjacent first portions, wherein the plurality of first portions cover at least the plurality of photodiodes respectively, and refractivity of the plurality of first portions is greater than refractivity of the plurality of second portions.
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29.发明授权公开(公告)号：US09857220B2
公开(公告)日：2018-01-02
申请号：US15093989
申请日：2016-04-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takashi Ichimiya
CPC classification number: G01J1/44 , G01J2001/446 , G02B7/28 , G02B7/346 , H04N5/35509
Abstract: A photoelectric converter includes a photoelectric conversion portion (PD) which receives light from an object to generate charges, a transfer portion (MTX) which transfers the charges generated by the photoelectric conversion portion, a capacitance portion (Cfd, Cs) which accumulates the charges transferred from the transfer portion, a determination unit (109) which determines whether an accumulation of the charges in the capacitance portion is to be stopped based on a signal corresponding to a charge amount accumulated in the capacitance portion during a first time period, and a setting unit (ST) which sets a height of a potential barrier in the transfer portion (transfer channel region), and the setting unit changes the height of the potential barrier in the transfer portion between the first time period and a second time period different from the first time period.
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公开(公告)号：US20170336254A1
公开(公告)日：2017-11-23
申请号：US15528188
申请日：2015-07-08
Applicant: SHIMADZU CORPORATION
Inventor： Ryuta HIROSE , Tomohiro KARASAWA , Hideki TOMINAGA
CPC classification number: G01J1/46 , G01J3/2803 , G01J2001/446 , H04N5/3575 , H04N5/3741 , H04N5/37457 , H04N5/378
Abstract: A photodetector includes a plurality of photoelectric conversion elements arranged within a photosensitive-element area constituting one photosensitive element; the plurality of detection circuits each of which is provided for one of the plurality of photoelectric conversion elements, each of the detection circuits including a capacitor; and a signal processing section for totaling output signals produced by the plurality of detection circuits.
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