Patent · US Active

Time-of-flight head movement measurement for wearable device

US10845870B2 · kind B2 · utility

0Cited by

1References

18Claims

0Family size

Assignee

STMICROELECTRONICS, INC. · US

Inventors

Xiaoyong Yang · San Jose, US
Rui Xiao · Tangxia, CN

Key dates

Filing date	Aug 10, 2018
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Aug 10, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0187
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present disclosure is directed to a system and method of determining a movement of a user's head with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's shoulder and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's head and the user's shoulder or to determine the reflectivity of the user's shoulder. With the distance or the reflectivity, a processor can be used to determine movement of the user's head. Furthermore, a multiple zone ranging sensor or multiple ranging sensors can be used to detect the user's shoulder in different spatial zones.

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