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:
Nov. 21, 2006
Filed:
Feb. 26, 2002
James W. O'toole, Jr., Somerville, MA (US);
Gang LU, Framingham, MA (US);
James W. O'Toole, Jr., Somerville, MA (US);
Gang Lu, Framingham, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Mechanisms and techniques provide a system for obtaining and providing location information related to a target device. The system transmits a location request message onto a network towards a target device. Each node in a network, possible including the target device, can respond with a location signature message containing location information associated with a plurality of different location information services. Each location information service provides location information having a different location granularity in relation to the target device. The system processes the location information for at least one of the location information services in the location signature message to derive a location of the target device in relation to at least one desired location granularity. By receiving location information of different types and different location granularities from different nodes in the network, and possibly from the target device, a location requesting application can derive an accurate location of the target device.