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:
Mar. 22, 2022
Filed:
Jan. 04, 2019
International Business Machines Corporation, Armonk, NY (US);
Yan Nan Hu, Beijing, CN;
You Jing, Beijing, CN;
Hui Wang, Beijing, CN;
Jun Li Wang, Beijing, CN;
Zhao Fei, Beijing, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A navigation method that includes building a virtual map database of maps for structures that block GPS signals, wherein the virtual maps are created from speed and direction measurements taken from motion sensors of the mobile devices of users of a geographic information system (GIS) map server; and starting a navigation session by a user employing a navigation application that employs the GIS map server. The GIS map server includes GIS map data, and virtual map data from the virtual map database. The virtual map data is for navigation instructions without a GPS signal. A start location is set using the GIS map data to provide the initial start location; and directions are provided to the start location using a virtual map data from the virtual map database.