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. 25, 2014
Filed:
Dec. 03, 2010
Tyrone D. Bekiares, Chicago, IL (US);
Peter E. Thomas, Schaumburg, IL (US);
Ryan P. Ziolko, Schaumburg, IL (US);
Tyrone D. Bekiares, Chicago, IL (US);
Peter E. Thomas, Schaumburg, IL (US);
Ryan P. Ziolko, Schaumburg, IL (US);
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for transmitting a subset voice stream associated with a subset talk group. A voice communication device receives a session identifier from an associated data communication device engaged. The voice communication device transforms the session identifier into a session key identifier, obtains an encryption algorithm implementing a subset talk group filtering feature and a voice encryption key identifier, and combines the session key identifier with the voice encryption key identifier to generate a signaling key identifier. The voice communication device associates the signaling key identifier and an encryption algorithm identifier with the subset voice stream during transmission of the subset voice stream to a receiving voice communication device.