Patent · US Active

Calibration of a chest-mounted wireless sensor device for posture and activity detection

US10719574B2 · kind B2 · utility

0Cited by

3References

5Claims

0Family size

Assignee

Vital Connect, Inc. · US

Inventors

Alexander Chan · Colorado Springs, US
Nima Ferdosi · San Jose, US
Ravi Narasimhan · Los Altos, US

Key dates

Filing date	Jan 8, 2018
Grant date	Jul 21, 2020
Priority date	—
Expiry date	May 14, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F17/40
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method and system for calibrating a wireless sensor device are disclosed. In a first aspect, the method comprises determining a vertical calibration vector and determining a rotation matrix using the vertical calibration vector to line up native axes of the wireless sensor device with body axes. In a second aspect, a wireless sensor device comprises a processor and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to determine a vertical calibration vector and to determine a rotation matrix using the vertical calibration vector to line up native axes of the wireless sensor device with body axes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.