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:
Sep. 02, 2003
Filed:
Jun. 01, 1999
John Richard Erlick, Scottsdale, AZ (US);
Duke Edward Hanson, Queen Creek, AZ (US);
Shawn Hogberg, Chandler, AZ (US);
Isaac Eteminan, Chandler, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A communications unit determines that a wireless link between itself and a first communications network has degraded beyond acceptable limits (FIG. 2, ). The communications unit signals a second, unsynchronized, communications network during a pause in outgoing voice ( ) in order to acquire a channel and continue the call using the second network. When the second communications network indicates that sufficient resources are available, the communications unit transmits a Handover Trigger to the second network (FIG. 4, ). In response to the Handover Trigger, the first and second communications network establish a connection between each other ( ). When the connection has been established, the communications unit receives a channel assignment ( ) and continues the call using the resources of the second communications network.