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:
Jan. 09, 2018
Filed:
Apr. 09, 2013
Tomtom Germany Gmbh & Co. KG, Harsum, DE;
Hannes Scharmann, Hildesheim, DE;
Hans-Ulrich Otto, Hildesheim, DE;
Volker Hiestermann, Laatzen, DE;
TOMTOM NAVIGATION B.V., Amsterdam, NL;
Abstract
A system and method are disclosed for incrementally updating an existing digital map of a client device in a digital map update system. The digital map update system comprises, for each of one or more baseline digital maps, at least one digital map update repository comprising data which may be communicated to one or more remote client devices for use by the or each remote client device in incrementally updating an existing digital map of the device. Each repository includes one or more digital map forward update journals in respect of a respective given version of the baseline map to which the digital map update repository relates. The forward update journal comprises data indicative of a set of one or more incremental updates that may be used to update the given version of the baseline map to a later version. Each repository also includes one or more digital map reverse update journals for reversing the effects of the or a forward update journal and reverting the later version of the baseline map back to an earlier version.