Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hyunkyu Ouh"'
Publikováno v:
IEEE Journal of Solid-State Circuits. 55:392-403
This article presents a fully integrated, wide linear dynamic range (DR) optical sensor array combining linear and single-photon avalanche diode (SPAD) operation within each pixel. A pulse-counting readout scheme provides in-pixel digitization in an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a94b913eed144c05384474e77c98547
https://doi.org/10.1109/jssc.2019.2944856
https://doi.org/10.1109/jssc.2019.2944856
Publikováno v:
IEEE Trans Biomed Circuits Syst
A multi-channel, CMOS-based biopotential acquisition system is presented that uses amplitude modulated, frequency division multiplexing (AM-FDM) to decrease wire count and provide resilience against motion artifacts and cable noise. Differential acti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c85104df90bbd8732558cf153856269d
https://europepmc.org/articles/PMC8942403/
https://europepmc.org/articles/PMC8942403/
Publikováno v:
MWSCAS
This paper presents a CMOS-integrated, single-photon avalanche diode (SPAD) optical sensor array with combined linear and single-photon operation to extend dynamic range. The design includes an in-pixel, dual-mode readout architecture enabling standa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7ff1d0a31fd58d33915469c5a898a28
https://doi.org/10.1109/mwscas47672.2021.9531882
https://doi.org/10.1109/mwscas47672.2021.9531882
Publikováno v:
MWSCAS
Conventional capacitively coupled low-noise amplifiers (LNA) often require a large feedback resistance (>1GΩ) to implement a sub-Hertz bandpass cut-off frequency, which is necessary for many biopotential signal acquisition applications (0.1Hz to 5kH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd72385599df24332c1502d4b95d5673
https://doi.org/10.1109/mwscas48704.2020.9184546
https://doi.org/10.1109/mwscas48704.2020.9184546
Publikováno v:
CICC
This paper presents a fully-integrated biopotential readout system using frequency division multiplexing (FDM) for general purpose, multi-channel biopotential signal acquisition. FDM reduces the number of required cables between active electrode and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9673966285270c1cd16be2cff899d56
https://doi.org/10.1109/cicc48029.2020.9075951
https://doi.org/10.1109/cicc48029.2020.9075951
Publikováno v:
IEEE Sensors Journal. 18:5291-5299
Single-photon avalanche diodes (SPADs) have emerged as the primary solid-state photodetectors for use in time-resolved imaging and very low light optical detection for their high sensitivity, fast impulse response, and CMOS process compatibility. For
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f39db3c3c3a7a89a068d9e2286ad27ef
https://doi.org/10.1109/jsen.2018.2835762
https://doi.org/10.1109/jsen.2018.2835762
Autor:
Hyunkyu Ouh, Matthew L. Johnston
Publikováno v:
IEEE Solid-State Circuits Letters. 1:118-121
This letter presents a new approach for applying orthogonal code-division multiplex encoding to current-mode sensor arrays with analog-domain encoding directly in the column readout circuitry, which enables simultaneous readout for multiple sensors.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::408771806290ee21988407a97af201ab
https://doi.org/10.1109/lssc.2018.2875827
https://doi.org/10.1109/lssc.2018.2875827
Autor:
Matthew L. Johnston, Hyunkyu Ouh
Publikováno v:
CICC
This paper presents an approach for combining linear and single-photon avalanche diode operation in a single pixel to enhance low-light dynamic range of a photodetector array. Pulse frequency modulation and avalanche pulse counting provide in-pixel d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c79beaf024371f0adae3585745ee787a
https://doi.org/10.1109/cicc.2018.8357037
https://doi.org/10.1109/cicc.2018.8357037
Publikováno v:
BioCAS
Silicon photodetectors and CMOS image sensors are widely used in biological sensing and medical imaging, where modern CMOS processes provide sufficient sensitivity and noise performance at a lower cost than traditional CCD sensors. At low light inten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e15502cbbf8ce02ce578a5bd8b47918
https://doi.org/10.1109/biocas.2017.8325065
https://doi.org/10.1109/biocas.2017.8325065
Publikováno v:
2017 IEEE SENSORS.
Ambient light sensors are increasingly used in low-power and portable devices to provide real-time response to changing light conditions, from modulating screen brightness to detecting user proximity. These sensors typically use an array of reverse-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd9d9ed9ba52df201837bd12abe04dac
https://doi.org/10.1109/icsens.2017.8234047
https://doi.org/10.1109/icsens.2017.8234047