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:
Mar. 30, 2004
Filed:
Jun. 26, 2000
Earle G. Long, Chesterfield, MO (US);
Michael H. Retzer, Palatine, IL (US);
Nuruddin Ladhani, Chicago, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A one-to-many dispatch method for use in a TDMA or other wireless telephone system. The one-to-many dispatch call is placed by sending a Request message from a Personal Station PS to a Control Center Station (CS) which assigns a channel with an Assignment message . The PS sends a call setup message over the control channel resulting in a channel assign message being broadcast repeatedly. Call connect messages over the Assigned Channel AC are also repeated from the CS to indicate the open connection. A hang timer is started when the PS ceases transmission of voice and the connection is torn down upon expiry of the hang timer unless another PS transmits a call setup message on the Assigned Channel AC before the expiry of the hang timer.