InnovationQ will be updated on Sunday, September 22, from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Wireless Position Location Using Two-Tone Signal Distance Measurements and Triangulation

IP.com Disclosure Number: IPCOM000008851D
Publication Date: 2002-Jul-17
Document File: 2 page(s) / 34K

Publishing Venue

The IP.com Prior Art Database


Disclosed is a method that uses a wireless transmitter, at least 3 wireless receivers, and a central computer to measure the physical location of the transmitter relative to the receivers. Benefits include the use of inexpensive RF hardware to measure relative location more accurately than existing technologies (such as GPS).