Yi U Zheng

US Patent:

20220304631, Sep 29, 2022

Filed:

Mar 29, 2021

Appl. No.:

17/216460

Inventors:

- Oakland CA, US
- Los Angeles CA, US
Per Henrik Borgstrom - Charlestown MA, US
Aman Mahajan - Los Angeles CA, US
Kanav Saraf - Los Angeles CA, US
Michael Wasko - Los Angeles CA, US
Xu Zhang - Los Angeles CA, US
Yi Zheng - Los Angeles CA, US

Assignee:

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA - Oakland CA
SENSYDIA CORPORATION - Los Angeles CA

International Classification:

A61B 5/00
A61B 5/021
A61B 7/04
A61B 5/352
A61B 5/0205
G16H 50/30
G06N 3/08
G06N 3/04

Abstract:

Systems and methods are provided for the non-invasive computation of Pulmonary Artery Pressure (and its components of mean, systolic and diastolic) (PAP) as well as Pulmonary Capillary Wedge Pressure (and its components of mean, A-Wave and V-Wave) (PCWP) using a wearable sensor device. Cardiac acoustic and electrocardiogram sensor signals are obtained and multiple temporal, amplitude-based, and spectral features are extracted from the signals. Extracted features from a subject are used as inputs for pre-trained classification, regression, or advanced machine learning models to provide an accurate computation of PAP and PCWP and their associated component values without surgery.

US Patent:

20160104474, Apr 14, 2016

Filed:

Oct 14, 2014

Appl. No.:

14/514272

Inventors:

- Pasadena CA, US
Yi Zheng - La Crescenta CA, US
Nikhil R. Jain - Altadena CA, US

International Classification:

G10L 13/033

Abstract:

A subject voice is characterized and altered to mimic a target voice while maintaining the verbal message of the subject voice. Thus, the words and message are the same as in the original voice, but the voice that conveys the words and message in the altered voice is different. Audio signals corresponding to the altered voice are output, for example to an application for playback to a user, or to another application or device for subsequent playback by the user or someone else. In one embodiment, the altered voice is posted to a social network. In other embodiments, the altered voice is used by other software applications or consumer electronics applications, such as GPS guidance systems, ebook readers, voice-based intelligent personal assistants, chat applications, and/or others that use voice as an input or output.