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公开(公告)号：US12138068B2
公开(公告)日：2024-11-12
申请号：US17202588
申请日：2021-03-16
Applicant: HI LLC
Inventor： Sebastian Sorgenfrei , Viswanath Ambalapuzha Gopalakrishnan , Katherine Perdue , Isai Olvera , Ryan Field
Abstract: An illustrative optical measurement system includes a signal generator configured to generate a signal and a processing unit configured to direct the signal generator to apply the signal to a TDC included in the optical measurement system and generate, based on timestamp symbols recorded by the TDC in response to the signal, characterization data representative of a nonlinearity of the TDC.
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2.发明公开公开(公告)号：US20240237942A1
公开(公告)日：2024-07-18
申请号：US18618725
申请日：2024-03-27
Applicant: HI LLC
Inventor： Scott Jeremy Seidman , Jennifer Rines , Ryan Field , Isai Olvera
CPC classification number: A61B5/6803 , A61B5/0059 , A61B5/6814 , G01J1/0425 , G01J1/4228 , G01J1/44 , G06F3/015 , A61B2562/0238 , G01J2001/4466
Abstract: A wearable module for use in an optical measurement system includes a housing and a plurality of light-receiving members. The housing includes a target-side surface configured to face a surface of a body of a user when the wearable module is worn by the user. The plurality of light-receiving members protrude from the target-side surface of the housing and are configured to receive photons scattered by a target within the body of the user and guide the received photons toward a photodetector. An extent to which each of the plurality of light-receiving members protrudes from the target-side surface is adjustable such that, when the wearable module is worn by the user, each of the plurality of light-receiving members is in physical contact with the surface of the body.
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公开(公告)号：US20240197185A1
公开(公告)日：2024-06-20
申请号：US18588846
申请日：2024-02-27
Applicant: HI LLC
Inventor： Ryan Field , Katherine Perdue , Hamid Dehghani
CPC classification number: A61B5/0082 , A61B5/4064 , A61B5/6803 , G01B11/14 , A61B2562/0238 , A61B2576/026
Abstract: An optical measurement system includes a light source configured to emit a first light pulse and a second light pulse toward a target, a detector, and a processing unit. The first light pulse has a first wavelength and the second light pulse has a second wavelength different from the first wavelength. The processing unit is configured to determine a plurality of temporal distributions of photons included in the first light pulse and the second light pulse and detected by the detector after the photons are scattered by the target, and determine, based on the plurality of temporal distributions and a source-detector distance estimation model, a distance between the light source and the detector.
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公开(公告)号：US20240193901A1
公开(公告)日：2024-06-13
申请号：US18583020
申请日：2024-02-21
Applicant: HI LLC
Inventor： Hamid Dehghani , Ryan Field , Julian Kates-Harbeck , Viktoria Rojkova , Ashutosh Chaturvedi
IPC: G06V10/141 , G02B27/01 , G06F18/10 , G06F18/2132 , G06F18/2135 , G06V10/14 , G06V10/147 , G06V10/50 , G06V10/75
CPC classification number: G06V10/141 , G02B27/0172 , G06F18/10 , G06F18/2132 , G06F18/2135 , G06V10/14 , G06V10/147 , G06V10/507 , G06V10/76 , G02B2027/014
Abstract: An illustrative method includes accessing, by a computing device, a model simulating light scattered by a simulated target, the model comprising a plurality of parameters. The method further includes generating, by the computing device, a set of possible histogram data using the model with a plurality of values for the parameters. The method further includes determining, by the computing device, a set of components that represent the set of possible histogram data, the set of components having a reduced dimensionality from the set of possible histogram data.
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公开(公告)号：US11864867B2
公开(公告)日：2024-01-09
申请号：US17202554
申请日：2021-03-16
Applicant: HI LLC
Inventor： Alex Borisevich , Ryan Field
CPC classification number: A61B5/0082 , A61B5/4064 , A61B5/6803 , G01J1/44 , H01S5/062 , A61B2562/0238 , G01J2001/442 , G01J2001/4466
Abstract: An exemplary system includes a light source and a control circuit configured to apply voltage having a first polarity to the light source for a first time period to provide a threshold charge for the light source to start an emission of a light pulse that is directed at a target within a body. The control circuit is further configured to apply voltage having a second polarity opposite the first polarity to the light source for a second time period subsequent to the first time period to discharge the light source to stop the emission of the light pulse.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240000392A1
公开(公告)日：2024-01-04
申请号：US18370323
申请日：2023-09-19
Applicant: HI LLC
Inventor： Ryan Field , Bruno Do Valle , Jacob Dahle , Sebastian Sorgenfrei
IPC: A61B5/00
CPC classification number: A61B5/7214 , A61B5/0082 , A61B5/6803 , A61B2576/026 , A61B2562/0238 , A61B2562/046
Abstract: An illustrative system may include a memory storing instructions and a processor communicatively coupled to the memory and configured to execute the instructions to: cause a signal to be applied to a component within an optical measurement system; generate, based on a response of the component to the signal, characterization data representative of a timing uncertainty associated with the component; and perform, based on the characterization data, an action associated with the component.
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7.发明公开公开(公告)号：US20230185096A1
公开(公告)日：2023-06-15
申请号：US18105367
申请日：2023-02-03
Applicant: HI LLC
Inventor： Scott Jeremy Seidman , Jennifer Rines , Ryan Field , Isai Olvera , Zachary Phillip Sheldon , Katherine Perdue
CPC classification number: G02B27/0172 , G01S17/04 , G01S17/88 , G06F1/163 , G06F3/0304
Abstract: An optical measurement system includes a wearable device configured to be worn on a body of a user and a position alignment system. The wearable device includes a support assembly and a wearable assembly supported by the support assembly. The wearable assembly includes a plurality of light sources configured to emit a plurality of light pulses toward a target within the body of the user and a plurality of detectors each configured to receive a set of photons included in a light pulse included in the plurality of light pulses after the set of photons is scattered by the target. The position alignment system is configured to facilitate positioning of the wearable assembly at a same position on the body of the user during different use sessions of the wearable device.
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公开(公告)号：US11575382B2
公开(公告)日：2023-02-07
申请号：US17559774
申请日：2021-12-22
Applicant: HI LLC
Inventor： Jacob Dahle , Bruno Do Valle , Rong Jin , Ryan Field , Sebastian Sorgenfrei
Abstract: An exemplary system includes a PLL circuit and a precision timing circuit connected to the PLL circuit. The PLL circuit has a PLL feedback period defined by a reference clock and includes a voltage controlled oscillator configured to lock to the reference clock and having a plurality of stages configured to output a plurality of fine phase signals each having a different phase, and a feedback divider configured to be clocked by a single fine phase signal included in the plurality of fine phase signals and have a plurality of feedback divider states during the PLL feedback period. The precision timing circuit is configured to generate a timing pulse and set, based on a first combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the timing pulse within the PLL feedback period.
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公开(公告)号：US11543885B2
公开(公告)日：2023-01-03
申请号：US17726747
申请日：2022-04-22
Applicant: HI LLC
Inventor： Bryan Johnson , Ryan Field
Abstract: An illustrative system includes a brain interface system configured to be worn by a user and to output brain measurement data representative of brain activity of the user while the user is engaged in an electronic messaging session provided by an electronic messaging platform and a computing device configured to obtain the brain measurement data, determine, based on the brain measurement data, a graphical emotion symbol representative of a mental state of the user while the user is engaged in the electronic messaging session, and provide the graphical emotion symbol for use during the electronic messaging session.
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公开(公告)号：US11452470B2
公开(公告)日：2022-09-27
申请号：US17550387
申请日：2021-12-14
Applicant: HI LLC
Inventor： Ryan Field , Michael Henninger , Katherine Perdue , Isai Olvera , Hamid Dehghani , Julian Kates-Harbeck , Antonio H. Lara , Bryan Johnson , Victoria A. Poissant
IPC: A61B5/1455 , A61B5/00 , A61B5/0205
Abstract: An illustrative optical measurement device includes a light source configured to emit light pulses directed at a target. The optical measurement device further includes a detector configured to detect arrival times for photons of the light pulses after the photons are scattered by the target. The optical measurement device further includes a processing unit configured to generate, based on the arrival times of the photons at the detector, histogram data associated with the target. The processing unit is further configured to determine, based on the histogram data, an absolute optical property associated with the target. The processing unit is further configured to determine, based on the absolute optical property, a blood oxygenation level of the user, and perform an operation based on the blood oxygenation level.
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