SYSTEM AND METHOD FOR PROVIDING PRIVACY PROTECTED NAVIGATION BETWEEN MOBILE TERMINALS

• US 20120157036A1
• Filed: 02/23/2012
• Published: 06/21/2012
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Waris, Heikki
• Granted Patent: US 9,464,904 B2
• Time in Patent Office: Days
• US Class Current: 455/404.2
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/362 received from an external device or application, e.g. PDA, mobile phone or calendar application
• CPC Class Codes: G06F 21/6245 Protecting personal data, e.g. for financial or medical purposes

Abstract

A system of providing location and routing information to a target mobile terminal while still maintaining a specified level of privacy. A target mobile terminal includes a profile having an inaccuracy level contained therein. When a querying terminal desires routing information to the target terminal, a portion of a route to the target terminal is provided, with the portion of the provided route being based upon the level of inaccuracy in the target terminal profile.

Claims

1. A method of providing location information of a target terminal to a querying terminal, comprising:

receiving a request for location information for the target terminal from the querying terminal; and

decreasing the granularity of the location information of the target terminal, the granularity based in part upon the distance between the querying terminal and the target terminal and dependent upon the querying terminal; and

making the target terminal'"'"'s location information with decreased granularity available to the querying terminal.

2-27. -27. (canceled)