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公开(公告)号:US11963745B2
公开(公告)日:2024-04-23
申请号:US17891606
申请日:2022-08-19
申请人: Fitbit, Inc.
发明人: Jens Mitchell Nielsen , Jaclyn Leverett Wasson , Kyung Nim Noh , Man-Chi Liu , Alan Luu , Peter Colin Dess , Lindsey Michelle Sunden , Lukas Bielskis , Thomas Consolazio , Steven Thomas Woodward , Dennis Jacob McCray
CPC分类号: A61B5/02055 , G01J1/0271 , G01K1/14 , H05K5/0086 , H05K5/0247 , A61B5/0008 , A61B5/282 , A61B5/681 , A61B2560/0456 , G01J2001/0257
摘要: Various embodiments provide a wellness tracking device with a base plate that may be utilized as a combination electrode by a variety of sensors. The base plate may be a multi-material electrode that includes a conductor and a transparent or semi-transparent material to enable optical sensing. In certain embodiments, the base plate supports a plurality of different sensors, which may selectively utilize the base plate as an electrode.
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公开(公告)号:US20240125643A1
公开(公告)日:2024-04-18
申请号:US18543368
申请日:2023-12-18
CPC分类号: G01J1/02 , G01J1/0219 , G01J1/0228 , G01J1/0247 , G01J1/16 , G01J1/32 , G01J1/44 , H05B47/10 , H05B47/11 , H05B47/19 , Y02B20/40
摘要: A wireless battery-powered daylight sensor for measuring a total light intensity in a space is operable to transmit wireless signals using a variable transmission rate that is dependent upon the total light intensity in the space. The sensor comprises a photosensitive circuit, a wireless transmitter for transmitting the wireless signals, a controller coupled to the photosensitive circuit and the wireless transmitter, and a battery for powering the photosensitive circuit, the wireless transmitter, and the controller. The photosensitive circuit is operable to generate a light intensity control signal in response to the total light intensity in the space. The controller transmits the wireless signals in response to the light intensity control signal using the variable transmission rate that is dependent upon the total light intensity in the space. The variable transmission rate may be dependent upon an amount of change of the total light intensity in the space. In addition, the variable transmission rate may be further dependent upon a rate of change of the total light intensity in the space.
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公开(公告)号:US20240102852A1
公开(公告)日:2024-03-28
申请号:US18077988
申请日:2022-12-08
申请人: Apple Inc.
发明人: Brandon J. Hui , Yaser Shanjani , Mark T. Winkler , Tong Chen , Michael K. McCord , Runyu Liu , Aaron Krahn
CPC分类号: G01J1/0271 , G01J1/0407
摘要: An optical proximity sensor includes a housing, an optical emitter, and an optical detector. A first light guide disposed in a first chimney of the housing is configured to direct light from the optical emitter through the first chimney towards a target location. A second light guide disposed in a second chimney of the housing is configured to direct a returned portion of the light emitted from the optical emitter through the second chimney towards the optical detector.
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公开(公告)号:US20240090102A1
公开(公告)日:2024-03-14
申请号:US18519035
申请日:2023-11-26
申请人: Apple Inc.
发明人: Alfredo Bismuto , Yi-Juei Ryan Wu , Thomas Schrans , Andrea Trita , Aaron Zilkie
IPC分类号: H05B47/105 , G01J1/02 , G01J1/42 , G02B6/293 , G02B6/42
CPC分类号: H05B47/105 , G01J1/0238 , G01J1/4228 , G02B6/29301 , G02B6/29328 , G02B6/29343 , G02B6/29395 , G02B6/4215 , G02B6/2935 , G02B6/29358 , G02B6/2938
摘要: Disclosed herein is an integrated photonics device including a frequency stabilization subsystem for monitoring and/or adjusting the wavelength of light emitted by one or more light sources. The device can include one or more selectors that can combine, select, and/or filter light along one or more light paths, which can include light emitted by a plurality of light sources. Example selectors may include, but are not limited to, an arrayed waveguide grating (AWG), a ring resonator, a plurality of distributed Bragg reflectors (DBRs), a plurality of filters, and the like. Output light paths from the selector(s) can be input into one or more detector(s). The detector(s) can receive the light along the light paths and can generate one or more signals as output signal(s) from the frequency stabilization subsystem. A controller can monitor the wavelength and can adjust or generate control signal(s) for the one or more light sources to lock the monitored wavelength to a target wavelength (or within a targeted range of wavelengths).
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公开(公告)号:US20240085177A1
公开(公告)日:2024-03-14
申请号:US18260198
申请日:2022-01-11
发明人: Ryutaro Homma , Yasuhiro Shinozuka
CPC分类号: G01C3/08 , G01J1/0228 , G01J2001/4238
摘要: A photodetection device according to the present disclosure includes: a light-receiving section including a light-receiving element, a first switch, a second switch, and a signal generator, the first switch that couples the light-receiving element to a first node by being turned on, the second switch that applies a predetermined voltage to the first node by being turned on, and the signal generator that generates a pulse signal on the basis of a voltage at the first node; a controller that controls operations of the first switch and the second switch; a detector that detects a timing at which the pulse signal is changed, on the basis of the pulse signal; and an output section that outputs a detection signal corresponding to a detection result by the detector when the second switch is turned on.
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公开(公告)号:US11927475B2
公开(公告)日:2024-03-12
申请号:US16820594
申请日:2020-03-16
发明人: Xinqiao Liu
IPC分类号: G01J1/18 , G01J1/02 , G01J1/08 , G01J1/16 , G01J1/42 , G01J1/44 , H01L27/146 , H01L31/0203 , H04N5/357 , H04N5/359 , H04N5/369 , H04N5/3745 , H01L27/32
CPC分类号: G01J1/18 , G01J1/0228 , G01J1/08 , G01J1/1626 , G01J1/4228 , G01J1/44 , H01L27/14612 , H01L27/14634 , H01L27/1464 , H01L31/0203 , H04N5/357 , H04N5/3591 , H04N5/3594 , H04N5/37455 , H04N5/379 , H01L27/14636 , H01L27/14643 , H01L27/3227
摘要: In one example, an apparatus comprises: a photodiode configured to generate charge in response to incident light within an exposure period; and a quantizer configured to perform at least one of a first quantization operation to generate a first digital output or a second quantization to generate a second digital output, and output, based on a range of an intensity of the incident light, one of the first digital output or the second digital output to represent the intensity of the incident light. The first quantization operation comprises quantizing at least a first part of the charge during the exposure period to generate the first digital output. The second quantization operation comprises quantizing at least a second part of the charge after the exposure period to generate the second digital output.
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公开(公告)号:US11920976B2
公开(公告)日:2024-03-05
申请号:US17753302
申请日:2020-08-27
发明人: John P. Mizzer , Donald Wood
CPC分类号: G01J1/0271 , G01N2035/00356 , G01N2201/0826
摘要: A system for coupling photometers to an incubation ring for use in in vitro diagnostics comprises one or more light sources, and an incubation ring assembly, and two photometers. An incubation ring assembly comprises an internal trough and an external trough. Each trough comprises (a) an internal wall comprising an internal aperture and (b) an external wall comprising an external aperture. A first photometer comprises: a first optics housing directing light from the light sources through the external aperture of the internal trough, and a first detector positioned to receive the light through the internal aperture of the internal trough. A second photometer comprises a second optics housing directing the light from the light sources through the internal aperture of the external trough, and a second detector positioned to receive the light through the external aperture of the external trough.
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公开(公告)号:US11913831B2
公开(公告)日:2024-02-27
申请号:US17838745
申请日:2022-06-13
发明人: Neale Dutton , John Kevin Moore
CPC分类号: G01J1/44 , G01J1/0271 , G01J1/0459 , H01L31/02016 , G01J2001/446 , G01J2001/4413
摘要: An optical sensor includes at least one photodetector configured to be reverse biased at a voltage exceeding a breakdown voltage by an excess bias voltage. At least one control unit is configured to adjust the reverse bias of the at least one photodetector. A method of operating an optical sensor is also disclosed.
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公开(公告)号:US20240053194A1
公开(公告)日:2024-02-15
申请号:US18347942
申请日:2023-07-06
申请人: Apple Inc.
发明人: Tyler A. Marshall , Divakar Singamsetty , Jeremy C. Franklin , Jeffrey C. Olson , Matthew S. Rogers
CPC分类号: G01J1/0407 , G01J1/0271
摘要: A system may have a support structure and a glass layer that separate an exterior region surrounding the system from an interior region. Components may be mounted in the interior region. The components may include an optical component. The glass layer may have a first area that overlaps the optical component and that serves as an optical component window for the optical component. The glass layer may also have a second area that surrounds the first area and does not overlap the optical component. The first area may be selectively weakened relative to the second area to prevent excessive glass fracturing during a damage event from obscuring the optical component. Selective weakening may be provided with laser-induced-damage features, recesses from local thinning, and/or glass-weakening deposited thin films such as physical vapor deposition thin-film coatings of inorganic dielectric.
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公开(公告)号:US20240035881A1
公开(公告)日:2024-02-01
申请号:US18258652
申请日:2021-12-21
申请人: Sencrop
发明人: Bruno Boissenin , Jérémy Masson , Steven Debeire
CPC分类号: G01J1/0295 , G01J1/16 , G01J1/0418 , G01J2001/4266
摘要: A device, in particular, a pyranometer, for measuring solar irradiance, comprises a light detection means and a temperature measurement means, and for which the temperature measurement means is configured to measure the temperature of the light detection means, and a data processing means configured to determine the irradiance by taking into account, in situ, the temperature of the light detection means. An irradiance measurement system and an irradiance measurement method are also disclosed.
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