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:
Jun. 23, 2015
Filed:
Nov. 16, 2011
Ronghui Zhu, Sunnyvale, CA (US);
Thomas G. Nourse, Half Moon Bay, CA (US);
Ronghui Zhu, Sunnyvale, CA (US);
Thomas G. Nourse, Half Moon Bay, CA (US);
GOOGLE INC., Mountain View, CA (US);
Abstract
A pre-fetching map data system and method identifies a subset of map data to corresponding to one or more points of interest to be displayed on the map. The map data is stored on a remote map database in map data tiles. The pre-fetching map data system identifies those map data tiles that correspond to the one or more points of interest, where the identified pre-fetch map data tiles are sent from the remote database to a client device for cache storage. The number of pre-fetch map data tiles are determined using a tile budget, such as a maximum number of map data tiles that may be stored on the client device or a maximum amount of map data memory that can be consumed on the client device.