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Distance Measurements Using a Two-Tone Wireless Signal and a Digital Receiver

IP.com Disclosure Number: IPCOM000008850D
Publication Date: 2002-Jul-17

Publishing Venue

The IP.com Prior Art Database


Disclosed is a method that uses a wireless transmitter and receiver to measure the physical distance between the transmitter and the receiver. Benefits include inexpensive RF hardware that measures distance or relative location more accurately than existing technologies (such as GPS).