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:
Aug. 06, 2024
Filed:
Sep. 07, 2023
Grabtaxi Holdings Pte. Ltd., Singapore, SG;
Simon Lim Hao Wooi, Singapore, SG;
Minbo Qiu, Beijing, CN;
Xiaocheng Huang, Singapore, SG;
Zhengmin Xu, Singapore, SG;
Guanfeng Wang, Singapore, SG;
GRABTAXI HOLDINGS PTE. LTD., Singapore, SG;
Abstract
Aspects concern a method for correcting position estimates of a movable object. According to various embodiments, the method comprises establishing () a hidden Markov model HMM, instance for a movable object and, for positioning times of a sequence of positioning times, receiving () a position estimate from a positioning device of the movable object for a respective positioning time, determining () a set of candidate path segments for the positioning time, determining () likelihoods for the candidate path segments to correspond to the position estimate by application of the Viterbi algorithm to the HMM instance, expanding () the HMM instance by the determined likelihoods for the candidate path segments for the positioning time and determining () a corrected position estimate from a candidate path segment of the set of candidate path segments with the highest likelihood.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile