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:
Nov. 10, 2009
Filed:
Jul. 25, 2005
Michael F. Coulas, Buffalo Grove, IL (US);
Michael F. Coulas, Buffalo Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
In the various embodiments of the present invention, a method of floor control in a PTX communications system comprises transmitting a floor control message via a floor control channel () wherein the floor control message consists of media designation fields () for any possible requested media type. The media types preferred for the given requested PTX session are designated by populating the corresponding media type designators () within the floor control message. The Real Time Control Protocol (RTCP) may be used for the floor control messaging channel and is independent from the requested media streams () which are typically Real-time Transport Protocol (RTP) media streams. Support may be provided for older mobiles that do not support each type of RTP media stream, but will still receive and interpret the RTCP floor control messaging, which in the embodiments of the present invention, is common for all media types.
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