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Your search returned 172 patents.
( 342/458 in Current US Classification )
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Patent IDTitleDate Filed
5751244 Method and apparatus for calibration of a GPS receiver June 7, 1995
5696705 System and method for reconstruction of the position of objects utilizing a signal transmitting and receiving distance determining device August 29, 1995
5680143 Method and apparatus for a low complexity satellite ranging system using Gaussian noise overlay May 29, 1996
5675518 Inter-vehicle distance measuring apparatus and method for automotive May 3, 1996
5664948 Delivery of data including preloaded advertising data October 11, 1994
5652593 Method and apparatus for guiding a machine September 29, 1994
5652578 Home base directional indicator June 9, 1995
5633593 Apparatus for sensing proximity of a moving target May 31, 1995
5515056 Burst tone range processing system and method August 11, 1993
5499199 Distance measuring system October 5, 1993
5469175 System and method for measuring distance between two objects on a golf course March 29, 1993
5459405 Method and apparatus for sensing proximity of an object using near-field effects May 22, 1991
5422828 Method and system for image-sequence-based target tracking and range estimation December 18, 1991
5343512 Call setup method for use with a network having mobile end users March 27, 1992
5343212 (AOA/LBI) emitter ranging method and apparatus December 11, 1992
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