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:
Aug. 20, 1996
Filed:
Aug. 25, 1992
James G Sawyer, Cedar Rapids, IA (US);
Bruce S Kloster, Cedar Rapids, IA (US);
Ralph L Kitson, Cedar Rapids, IA (US);
Randall M Kovatch, Marion, IA (US);
Daniel C Roepke, Cedar Rapids, IA (US);
M Frank Wilson, Cedar Rapids, IA (US);
Rockwell International, Seal Beach, CA (US);
Abstract
A method and system for radio communications between mobile units and base stations geographically distributed through a substantial geographic area described. The system automatically finds and engages broadcast frequency for each geographic region. The engagement is confirmed at both the mobile unit and network so that both can begin data transmission and reception between each other as well as keep track of the status of one another. The system also verifies the correct base station has been engaged as well as automatically terminates communications once the mobile unit passes out of coverage for that base station.