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公开(公告)号：US20230332948A1
公开(公告)日：2023-10-19
申请号：US18043081
申请日：2021-08-26
Applicant: ams International AG
Inventor： André VAN DER AVOIRD , Bobby DANIEL , Erik JAN LOUS , Jagruth PRASANNA KUMAR
IPC: G01J1/44
CPC classification number: G01J1/44 , G01J2001/4466 , G01J2001/448
Abstract: A radiation-sensitive device is disclosed. The device includes an array of single photon avalanche diodes (SPADs) and circuitry configured to measure an intensity of incident radiation from the array of SPADs with a plurality of different measurement windows to provide an associated plurality of results. The circuitry is configured to determine the intensity of the incident radiation from one of the plurality of results, a selection of the result determined by whether the result exceeds a maximum count defined, at least in part, by a duration of the measurement window associated with the result. An associated method of increasing a dynamic range of a radiation-sensitive device comprising an array of SPADs is also disclosed.
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公开(公告)号：US11788885B2
公开(公告)日：2023-10-17
申请号：US17577385
申请日：2022-01-18
Applicant: ADVANTEST CORPORATION
Inventor： Kotaro Hasegawa , Kouji Miyauchi , Go Utamaru
CPC classification number: G01J1/44 , G01J2001/4252
Abstract: A test apparatus includes: an electrical connection unit electrically connected to a terminal of each of a plurality of light emitting devices to be tested; a light source unit for collectively irradiating the plurality of light emitting devices with light; an electrical measurement unit for measuring a photoelectric signal obtained by photoelectrically converting the light irradiated from the light source unit by each light emitting device; a light emission control unit for causing at least one light emitting device to be subjected to light emission processing to emit light; a light measuring unit for measuring light emitted by the at least one light emitting device to be subjected to the light emission processing; and a determination unit determining a quality of each light emitting device on the basis of a measurement result of the electrical measurement unit and a measurement result of the light measuring unit.
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公开(公告)号：US20230324220A1
公开(公告)日：2023-10-12
申请号：US18043084
申请日：2021-08-26
Applicant: ams International AG
Inventor： André VAN DER AVOIRD , Bobby DANIEL , Erik Jan LOUS , Jagruth PRASANNA KUMAR
IPC: G01J1/44
CPC classification number: G01J1/44 , G01J2001/4466 , G01J2001/442 , G01J2001/448 , G01J2001/444
Abstract: A radiation-sensitive device is disclosed. The device comprises a plurality of single photon avalanche diodes (SPADs) and circuitry configured to adapt a read-out rate of the plurality of SPADs in relation to an intensity of incident radiation. Also disclosed is an associated method of increasing a dynamic range of a radiation-sensitive device comprising a plurality of SPADs. The method comprises adapting a read-out rate of the plurality of SPADs in relation to an intensity of incident radiation.
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公开(公告)号：US11783544B2
公开(公告)日：2023-10-10
申请号：US17457435
申请日：2021-12-03
Applicant: Loveland Innovations, Inc.
Inventor： Jim Loveland , Leif Larson , Dan Christiansen , Tad Christiansen , Daniel Gerszewski
CPC classification number: G06T19/00 , B64C39/024 , G01J1/44 , G06V20/17 , G06V20/176 , G06V20/188 , G06V20/58 , B64U2101/30 , G01J2001/4276
Abstract: Systems, methods, and computer-readable media are described herein to model divergent beam ray paths between locations on a roof (e.g., of a structure) and modeled locations of the sun at different times of the day and different days during a week, month, year, or another time period. Obstructed and unobstructed divergent beam ray paths are identified. Unobstructed divergent beam ray paths contribute to the calculation of a solar irradiance value for each location on the roof. Divergent beam ray paths, such as cones or pyramid ray paths, allow for sparse or lower-resolution spatial and/or temporal sampling without sacrificing obstacle detection.
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公开(公告)号：US20230314209A1
公开(公告)日：2023-10-05
申请号：US18088809
申请日：2022-12-27
Applicant: Bin Shi , Fan Qi , Pengfei Cai
Inventor： Bin Shi , Fan Qi , Pengfei Cai
IPC: G01J1/42 , G01J1/44 , H01L31/0216 , H01L31/028 , H01L31/107
CPC classification number: G01J1/4228 , G01J1/44 , H01L31/02164 , H01L31/028 , H01L31/1075 , G01J2001/446
Abstract: The present invention provides a photodiode structure with a dark current indication function, including a photosensitive photodiode and a reference photodiode, where a photosensitive surface of the reference photodiode is provided with a light-blocking layer, and there is a fixed multiple relationship between dark currents of the photosensitive photodiode and the reference photodiode. The present invention further provides a photoelectric sensor, including a processing module and the photodiode structure. According to a structural design of the present invention, the photodiode structure may output two paths of current signals, so that an accurate signal photocurrent can be obtained only by subtracting the two paths of current signals in practice work, so as to finally achieve the objectives of eliminating the dark currents and reducing noise; and moreover, in the present invention, the dark currents of photodiodes are eliminated without increasing peripheral devices. Therefore, the present invention has the advantages of being simple in structure and low in cost, and further improving a photoelectric conversion efficiency.
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Patent Agency Ranking
公开(公告)号：US11774679B2
公开(公告)日：2023-10-03
申请号：US17582900
申请日：2022-01-24
Applicant: Ayar Labs, Inc.
Inventor： Pavan Bhargava , John Fini , Derek Van Orden , Chen Sun , Mark Wade
IPC: G02B6/293 , G02F1/225 , G01J1/04 , G01J1/44 , G02B6/12 , H01L31/0232 , H01L31/105
CPC classification number: G02B6/2934 , G01J1/0425 , G01J1/44 , G02B6/12007 , G02F1/2257 , H01L31/02327 , H01L31/105 , G01J2001/446 , G02B6/29338 , G02F2203/15
Abstract: A ring resonator device includes a passive optical cavity having a circuitous configuration into which is built a photodetector device. The photodetector device includes a first implant region formed within the passive optical cavity that includes a first type of implanted doping material. The photodetector device includes a second implant region formed within the passive optical cavity that includes a second type of implanted doping material, where the second type of implanted doping material is different than the first type of implanted doping material. The photodetector device includes an intrinsic absorption region present within the passive optical cavity between the first implant region and the second implant region. A first electrical contact is electrically connected to the first implant region and to a detecting circuit. A second electrical contact is electrically connected to the second implant region and to the detecting circuit.
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公开(公告)号：US11774283B2
公开(公告)日：2023-10-03
申请号：US16963303
申请日：2019-01-24
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Baba , Tatsuya Hashi , Yoshihito Suzuki , Kenji Makino , Shigeyuki Nakamura
IPC: G01J1/44 , G01S7/4863 , G01S7/4865 , G01S17/894
CPC classification number: G01J1/44 , G01S7/4863 , G01S7/4865 , G01J2001/448 , G01J2001/4466 , G01S17/894
Abstract: A photodetector device includes an avalanche photodiode array substrate. A circuit substrate includes time measurement circuits and a clock driver. Each of the time measurement circuit includes a delay line unit, and is arranged to acquire, from an operation result of a delay line, time information indicating timing at which a pulse signal is input from a corresponding avalanche photodiode. The delay line unit is arranged to initiate an operation of the delay line in response to input of the pulse signal to the time measurement circuit, and to stop the operation of the delay line in response to input of a clock signal from a clock driver to the time measurement circuit, and is arranged to detect a time interval shorter than a cycle of the clock signal by the operation of the delay line.
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118.发明授权公开(公告)号：US11771332B2
公开(公告)日：2023-10-03
申请号：US16767949
申请日：2018-10-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Eungi Min , Jeahyuck Lee , Yong Jin Lee , Seung-Eun Lee
CPC classification number: A61B5/02416 , A61B5/02438 , A61B5/681 , A61B5/6843 , A61B5/7285 , G01D5/24 , G01J1/44 , G06F3/0304 , A61B5/053
Abstract: Various embodiments provide an electronic device and a method, the device comprising: a capacitive sensor, a heart rate sensor including at least one light-emitting unit, a first light receiving unit, and a second light receiving unit; and a processor, wherein the processor is configured to: measure capacitance for a user wearing the electronic device by using the capacitive sensor; emit light by using the light-emitting unit according to the capacitance; measure a first amount of light which is said light reflected by the user's body tissue through the first light receiving unit, and a second amount of light which is said light reflected by the body tissue through the second light receiving unit; determine that the electronic device is worn by the user when at least one amount of light of the first amount of light and the second amount of light satisfies an amount of light in a specified range; and determine that the electronic device is detached from the user when the first amount of light and the second amount of light do not satisfy the amount of light in the specified range. Also, other embodiments are possible.
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公开(公告)号：US20230304868A1
公开(公告)日：2023-09-28
申请号：US18324917
申请日：2023-05-26
Applicant: Calumino Pty Ltd.
Inventor： Gabrielle de Wit , Marek Steffanson
CPC classification number: G01J5/20 , G01J5/0225 , G01J5/40 , G02B26/0866 , G02B26/085 , G01J1/0414 , G01J1/44 , G02B26/0833 , G01J2005/106
Abstract: Systems, methods, and apparatuses for providing electromagnetic radiation sensing using sequential beam splitting. The apparatuses can include a micro-mirror chip having a plurality of light reflecting surfaces, an image sensor having an imaging surface, and a beamsplitter unit located between the micro-mirror chip and the image sensor. The beamsplitter unit includes a plurality of beamsplitters aligned along a horizontal axis that is parallel to the micro-mirror chip and the imaging surface. The beamsplitters implement the sequential beam splitting. Because of the structure of the beamsplitter unit, the height of the arrangement of the micro-mirror chip, the beamsplitter unit, and the image sensor is reduced such that the arrangement can fit within a mobile device. Within a mobile device, the apparatuses can be utilized for human detection, fire detection, gas detection, temperature measurements, environmental monitoring, energy saving, behavior analysis, surveillance, information gathering and for human-machine interfaces.
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公开(公告)号：US20230304858A1
公开(公告)日：2023-09-28
申请号：US18319809
申请日：2023-05-18
Applicant: Sony Semiconductor Solutions Corporation
Inventor： Tatsuki Nishino
IPC: G01J1/44 , H01L31/107 , G01C3/06
CPC classification number: G01J1/44 , G01C3/06 , H01L31/107 , G01J2001/442 , G01J2001/4466
Abstract: A light receiving device according to the present disclosure includes: a light receiving element that generates a signal in response to reception of a photon; a readout circuit that reads out a signal generated by the light receiving element; and a protection circuit that is provided between the light receiving element and the readout circuit and protects a circuit element of the readout circuit from overvoltage. Further, a distance measuring device according to the present disclosure includes a light receiving device of the above configuration.
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