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:
Apr. 01, 2008
Filed:
May. 10, 2004
Mark R. Lemke, Mundelein, IL (US);
Jerome O. Vogedes, Wind Lake, WI (US);
Robert Patzer, Utica, MI (US);
Mark R. Lemke, Mundelein, IL (US);
Jerome O. Vogedes, Wind Lake, WI (US);
Robert Patzer, Utica, MI (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A push-to-talk (PTT) radio resource controller () establishes a 'reverse' channel using a forward channel resource request module (), a reverse channel resource request module (), an allocation rules module () that is coupled to the forward channel resource request module () and the reverse channel resource request module (), and a channel resource availability module () that is coupled to the allocation rules module (). A method () for establishing a reverse channel in a PTT system initiates a forward PTT circuit () between an originating device and at least a first called device, initiates a first reverse PTT circuit () between the first called device and the originating device before releasing () the forward PTT circuit, and then releases () the first reverse PTT circuit.