Patent · US Active

Radiofrequency based virtual motion model for localization using particle filter

US10871547B1 · kind B1 · utility

1Cited by

2References

12Claims

0Family size

Assignee

FUJI XEROX CO., LTD. · JP

Inventors

Miteshkumar Ishwarbhai Patel · San Jose, US
Jacob Biehl · San Jose, US
Andreas Girgensohn · Menlo Park, US

Key dates

Filing date	Dec 23, 2019
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Dec 23, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04W4/80
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

System is built using the particle filter (PF) framework which utilizes data from round trip time (RTT) ranging or BLE signal strength to perform both (1) sensing the environment by using the scan data during measurement phase and (2) detect motion state of the user which it utilized during the motion update phase of PF. To detect the motion state of the user the temporal difference of the received ranging scans is used over which is utilized within the PF framework. The primary advantage of the described technique is that the velocity parameter of the PF can dynamically be updated based on the motion state as estimated using ranging scans.

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