The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2019
Filed:
Mar. 31, 2016
Applicant:
Tata Consultancy Services Limited, Mumbai, IN;
Inventors:
Sourjya Sarkar, Kolkata, IN;
Avik Ghose, Kolkata, IN;
Assignee:
Tata Consultancy Services Limited, Mumbai, IN;
Primary Examiner:
Int. Cl.
CPC ...
G01S 3/02 (2006.01); G01S 5/02 (2010.01); G01C 21/20 (2006.01); H04W 4/02 (2018.01); H04W 4/029 (2018.01);
U.S. Cl.
CPC ...
G01S 5/0252 (2013.01); G01C 21/206 (2013.01); G01S 5/0278 (2013.01); H04W 4/025 (2013.01); H04W 4/029 (2018.02); G01S 5/0263 (2013.01);
Abstract
The present subject matter relates to a computing device () and method intended to provide fine-grained continuous location tracking for non-real time uses (e.g., for retracing the movement of office employees). As per the subject matter, the knowledge of an office layout is combined with the application of particle filters (PFs) over inertial tracking (using compass, accelerometer and gyroscope sensors) data. Viterbi-based path-likelihood maximization is integrated with PF framework to progressively reduce the uncertainty in the movement track of an individual computing device ().