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:
Dec. 08, 1998
Filed:
Jun. 17, 1997
David Moon Yee, Scottsdale, AZ (US);
Robert Henry Bickley, Scottsdale, AZ (US);
Charles Herbert Brenner, Scottsdale, AZ (US);
Philip John Zucarelli, Glendale, AZ (US);
Theodore Wolley Keller, Scottsdale, AZ (US);
Christopher Kent Moyer, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A GPS based search and rescue system utilizes an airborne interrogation unit for extending the range of a second interrogation unit. The airborne unit relays communication between a survival radio and the second interrogation unit. The second interrogation unit is typically a ground based unit and is arranged to provide GPS correction information to the survival radio. The normal line of sight communication between a survival radio and an interrogation unit is extended to an over the horizon communication path by utilizing the airborne interrogation unit as a relay for communications.