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. 01, 2008
Filed:
Aug. 11, 2005
Applicant:
Josh Sacks, San Carlos, CA (US);
Inventor:
Josh Sacks, San Carlos, CA (US);
Assignee:
Google Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/123 (2006.01);
U.S. Cl.
CPC ...
Abstract
Techniques are disclosed that enable users to access and use digital mapping systems with constrained-resource services and/or mobile devices (e.g., cell phones and PDAs). In particular, latency of a mapping application on high-latency and low-throughput networks is minimized. One embodiment utilizes volatile and non-volatile storage of the mobile device to cache pre-computed map images (e.g., map tiles). An asynchronous cache can be used to prevent delays caused by potentially slow non-volatile storage. Meta-data about each map image and usage patterns can be stored and used by the cache to optimize hit rates.