公开(公告)号：US20240090816A1

公开(公告)日：2024-03-21

申请号：US18521771

申请日：2023-11-28

Applicant: HI LLC

Inventor： Alejandro Ojeda ,  Ryan Field ,  Husam Katnani ,  Bruno Do Valle ,  Isai Olvera

IPC: A61B5/369 ,  A61B5/00 ,  A61B5/291

CPC classification number: A61B5/369 ,  A61B5/0075 ,  A61B5/291 ,  A61B5/6803

Abstract: An illustrative multimodal measurement system includes a wearable assembly configured to be worn by a user; and a module configured to be removably inserted into the wearable assembly and comprising: a housing, a printed circuit board (PCB) and a light guide assembly configured to emit light directed at a target within the user. The light guide assembly comprises: a lower light guide portion housed within the housing and having a proximal end attached to the PCB, a conductive spring member housed within the housing and comprising a coil positioned around an external surface of the lower light guide portion, and a conductive upper light guide portion connected to the lower light guide portion and configured to protrude from an upper surface of the housing and be in contact with a surface of a body of the user.

公开(公告)号：US11903676B2

公开(公告)日：2024-02-20

申请号：US17202668

申请日：2021-03-16

Applicant: HI LLC

Inventor： Sebastian Sorgenfrei ,  Ryan Field ,  Bruno Do Valle ,  Isai Olvera ,  Jacob Dahle ,  Husam Katnani

IPC: A61B5/00

CPC classification number: A61B5/0082 ,  A61B5/4064 ,  A61B5/6803 ,  A61B5/7217 ,  A61B2560/0223 ,  A61B2560/0443 ,  A61B2562/046

Abstract: An illustrative optical measurement system includes a light source configured to emit light directed at a target, an array of photodetectors configured to detect photons of the light after the light is scattered by the target, and a processing unit. The processing unit is configured to measure a noise level of a photodetector included in the array of photodetectors and determine that the noise level meets a predetermined threshold. The processing unit is further configured to prevent, based on the determining that the noise level meets the predetermined threshold, an output of the photodetector from being used in generating a histogram based on a temporal distribution of photons detected by the array of photodetectors.

公开(公告)号：US11883181B2

公开(公告)日：2024-01-30

申请号：US17176309

申请日：2021-02-16

Applicant: HI LLC

Inventor： Alejandro Ojeda ,  Ryan Field ,  Husam Katnani ,  Bruno Do Valle ,  Isai Olvera

IPC: A61B5/291 ,  A61B5/369 ,  A61B5/00

CPC classification number: A61B5/369 ,  A61B5/0075 ,  A61B5/291 ,  A61B5/6803

Abstract: An illustrative multimodal measurement system includes a wearable assembly configured to be worn by a user and comprising a plurality of light sources each configured to emit light directed at a target within the user, a plurality of detectors configured to detect arrival times for photons of the light after the light is scattered by the target, and a plurality of electrodes configured to be external to the user and detect electrical activity of the target.

公开(公告)号：US11877825B2

公开(公告)日：2024-01-23

申请号：US17202548

申请日：2021-03-16

Applicant: HI LLC

Inventor： Benjamin Siepser ,  Sangyong Park ,  Sebastian Sorgenfrei ,  Jacob Dahle ,  Ryan Field ,  Alex Borisevich ,  Milin J. Patel

IPC: A61B5/00 ,  G01J1/42 ,  G01J1/44

CPC classification number: A61B5/0075 ,  G01J1/4228 ,  G01J1/44 ,  A61B5/0042 ,  A61B2562/0238 ,  G01J2001/442 ,  G01J2001/448 ,  G01J2001/4466

Abstract: An exemplary system includes a processor, a wearable device comprising a plurality of slots, and a first module including a plurality of detectors and a module control circuit. The processor is configured to successively transmit, to each slot of the plurality of slots, a command to enable a respective module located in each slot. The processor is further configured to determine, based on an acknowledgment received from the module control circuit, that the first module is enabled and located in a first slot, and to successively transmit, based on the determining that the first module is enabled and located in the first slot, a plurality of detector address identifiers. The module control circuit is configured to successively place the plurality of detectors into an enumeration mode in which each detector of the plurality of detectors is assigned a different detector address identifier of the plurality of detector address identifiers.

公开(公告)号：US11867911B2

公开(公告)日：2024-01-09

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

IPC: G02B27/01 ,  G01S17/04 ,  G01S17/88 ,  G06F1/16 ,  G06F3/03 ,  A61B5/00

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.

公开(公告)号：US11819311B2

公开(公告)日：2023-11-21

申请号：US17202563

申请日：2021-03-16

Applicant: HI LLC

Inventor： Rong Jin ,  Sebastian Sorgenfrei ,  Ryan Field ,  Bruno Do Valle ,  Jacob Dahle

IPC: A61B5/00

CPC classification number: A61B5/0082 ,  A61B5/0073 ,  A61B5/0075 ,  A61B5/4064 ,  A61B5/6803 ,  A61B2560/0214

Abstract: An exemplary optical measurement system includes a light source configured to emit light directed at a target. The optical measurement system further includes a photodetector configured to detect a photon of the light after the light is scattered by the target. The optical measurement system further includes a control circuit configured to receive a first input voltage that is a temperature-dependent voltage. The control circuit is further configured to receive a second input voltage that is a temperature-invariant voltage. The control circuit is further configured to output, based on a combination of the first input voltage and the second input voltage, a bias voltage for the photodetector, wherein the combination of the first and second input voltages is configured to cause the bias voltage to vary based on temperature.

公开(公告)号：US11735681B2

公开(公告)日：2023-08-22

申请号：US17725703

申请日：2022-04-21

Applicant: HI LLC

Inventor： Sebastian Sorgenfrei ,  Jacob Dahle ,  Ryan Field ,  Bruno Do Valle ,  Rong Jin

IPC: A61B5/00 ,  H01L31/107 ,  H01L31/02

CPC classification number: H01L31/107 ,  H01L31/02027

Abstract: An illustrative system may include a component configured to be worn on a body of a user, the component comprising a time-to-digital converter (TDC) configured to: receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target within the body, a signal triggered by an event in which a photodetector detects a photon of the light pulse after the light pulse reflects from the target; and measure, based on the receiving the signal, a time interval between when the event occurred and an end of the predetermined event detection time window. The system may further include a processor configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.

公开(公告)号：US11612808B2

公开(公告)日：2023-03-28

申请号：US17668691

申请日：2022-02-10

Applicant: HI LLC

Inventor： Bryan Johnson ,  Ryan Field ,  Katherine Perdue

IPC: A63F13/212 ,  A63F13/213 ,  A63F13/25 ,  A63F13/30 ,  A63F13/67 ,  A63F13/69 ,  A61B5/16 ,  A61B5/024 ,  A61B5/053 ,  A61B5/00 ,  G01R33/26 ,  G06F3/01 ,  H01L31/107

Abstract: An illustrative system includes a brain interface system configured to be worn by a user and to output brain activity data representative of brain activity of the user while the user concurrently plays an electronic game and a computing device configured to obtain the brain activity data and modify, based on the brain activity data, an attribute of the electronic game.

公开(公告)号：US11607132B2

公开(公告)日：2023-03-21

申请号：US17202598

申请日：2021-03-16

Applicant: HI LLC

Inventor： Bruno Do Valle ,  Ryan Field ,  Rong Jin ,  Jacob Dahle

IPC: A61B5/00 ,  G01R31/317 ,  G01R31/30 ,  G01R31/319

Abstract: An exemplary system includes a photodetector configured to generate a plurality of photodetector output pulses over time as a plurality of light pulses are applied to and scattered by a target, a TPSF generation circuit configured to generate, based on the photodetector output pulses, a TPSF representative of a light pulse response of the target, and a control circuit configured to direct the TPSF generation circuit to selectively operate in different resolution modes.

公开(公告)号：US20230035935A1

公开(公告)日：2023-02-02

申请号：US17729593

申请日：2022-04-26

Applicant: HI LLC

Inventor： Michael Henninger ,  Isai Olvera ,  Han Yong Ban ,  Ryan Field

IPC: G01J1/04

Abstract: An illustrative calibration member made from a material that scatters light may be used to perform a calibration operation with respect to an optical measurement device having a plurality of light sources and a plurality of detectors distributed among a plurality of modules. The calibration member may form an exterior surface configured to support the optical measurement device and scatter photons of light emitted by the optical measurement device. The calibration operation may be performed based on arrival times of the scattered photons detected by the optical measurement device.