Paras Samsukha

US Patent:

20220401025, Dec 22, 2022

Filed:

Aug 22, 2022

Appl. No.:

17/821433

Inventors:

- Cupertino CA, US
Thomas J. SULLIVAN - San Jose CA, US
Xiaoyu GUO - Santa Clara CA, US
Paras SAMSUKHA - San Jose CA, US
Anirban CHATTERJEE - San Jose CA, US

International Classification:

A61B 5/00
A61B 5/24

Abstract:

Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.

US Patent:

20210290159, Sep 23, 2021

Filed:

Jun 7, 2021

Appl. No.:

17/340257

Inventors:

- Cupertino CA, US
Erno H. Klaassen - Los Altos CA, US
Paras Samsukha - San Jose CA, US
Xiaoyu Guo - Santa Clara CA, US

International Classification:

A61B 5/00
A61B 5/282
A61B 5/304
A61B 5/316
A61B 5/332

Abstract:

Disclosed herein are devices and methods of using a mobile or wearable device for the acquisition and spatial filtering of ECG signals from an electrode array. One variation of a mobile or wearable device comprises an array of electrodes, one or more reference electrodes, and a controller in communication with the electrodes. In one example, the one or more reference electrodes are located on a wrist-worn device (e.g., a watch), and the electrode array is located on an accessory device that may be contacted with a fingertip. One variation of a spatial filtering method comprises identifying the electrodes that have high levels of noise and excluding the ECG signals from those electrodes from further analyses. In another variation, a method of spatial filtering comprises identifying electrodes with low levels of noise and including only the ECG signals from those electrodes in further analyses.

US Patent:

20200077954, Mar 12, 2020

Filed:

Sep 9, 2019

Appl. No.:

16/565090

Inventors:

- Cupertino CA, US
Thomas J. SULLIVAN - San Jose CA, US
Xiaoyu GUO - Santa Clara CA, US
Paras SAMSUKHA - San Jose CA, US
Anirban CHATTERJEE - San Jose CA, US

International Classification:

A61B 5/00

Abstract:

Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.