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. 19, 1997
Filed:
Feb. 26, 1996
Barbara Brooks, Tempe, AZ (US);
David Terris, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A satellite communication system for delivering simplex messages to subscribers comprises multiple Message Origination Controllers (MOCs), one or more Message Termination Controllers (MTCs), satellites, and geographically-diverse communication units. Messages destined for particular communication units are transmitted to the one or more MTCs. The one or more MTCs then schedule delivery of the messages to communication units by employing a blocked timing structure for delivery of the messages. The one or more MTCs transmit the scheduled messages to satellites which broadcast the messages to communication units at the scheduled time. Communication units are assigned specific timing blocks during which they monitor radio signals for messages directed to them. During non-assigned timing blocks, communication units remain in a low-power state.