Photodetector comprising a single photon avalanche diode and a capacitor

B Do Valle, R Jin, J Dahle, H Katnani - US Patent 10,424,683, 2019 - Google Patents
An exemplary photodetector includes a SPAD and a capaci tor. The capacitor is configured
to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage …

Stacked photodetector assemblies

R Field, H Katnani, B Do Valle, R Jin… - US Patent 10,515,993, 2019 - Google Patents
An exemplary stacked photodetector assembly includes a first wafer and a second wafer
bonded to the first wafer. The first wafer includes a SPAD and has a thickness T1 config ured …

Spatial and temporal-based diffusive correlation spectroscopy systems and methods

R Horstmeyer, H Zhou, Y Shen, H Ruan - US Patent 11,213,245, 2022 - Google Patents
US11213245B2 - Spatial and temporal-based diffusive correlation spectroscopy systems
and methods - Google Patents US11213245B2 - Spatial and temporal-based diffusive …

Wearable systems with stacked photodetector assemblies

R Field, H Katnani, B Do Valle, R Jin… - US Patent 10,847,563, 2020 - Google Patents
HOIL 27/146(2006.01) HOIL 31/107(2006.01) A61B 5/04(2006.01)(52) US CI. CPC.. HOIL
27/14634 (2013.01); HOIL 27/14623 (2013.01); HOIL 27/14629 (2013.01); HOIL 31/107 …

Biofeedback for awareness and modulation of mental state using a non-invasive brain interface system and method

B Johnson, H Katnani - US Patent 11,006,876, 2021 - Google Patents
A mental state awareness system comprises a non-invasive brain interface assembly
configured for detecting brain activity of a user, a processor configured for determining a …

Time-dependent filtering for lidar signals

L Irish, WH Von Novak - US Patent 10,422,865, 2019 - Google Patents
Methods, computer-readable media, and apparatuses for estimating a distance of an object
from a Light Detection and Ranging (LIDAR) system is disclosed. In one embodiment, the …

Wearable devices and wearable assemblies with adjustable positioning for use in an optical measurement system

SJ Seidman, J Rines, R Field, I Olvera… - US Patent …, 2023 - Google Patents
An optical measurement system includes a wearable device including a support assembly
configured to be worn on a body of a user and a wearable assembly supported by the …

Wearable module assemblies for an optical measurement system

SJ Seidman, R Field, H Katnani, K Perdue… - US Patent …, 2021 - Google Patents
An optical measurement system includes a wearable module assembly configured to be
worn on a body of a user. The wearable module assembly includes a plurality of wearable …

Non-invasive measurement systems with single-photon counting camera

H Ruan, H Zhou, Y Shen, R Horstmeyer - US Patent 11,213,206, 2022 - Google Patents
An exemplary non-invasive measurement system includes a single-photon counting camera
and a processor. The single photon counting camera includes an array of SPAD detectors …

Phase lock loop circuit based signal generation in an optical measurement system

J Dahle, B Do Valle, R Jin, R Field… - US Patent …, 2022 - Google Patents
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 …