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:
Jul. 21, 2009
Filed:
Aug. 25, 2006
Sanjay G. Desai, Lake in the Hills, IL (US);
John M. Gilbert, Hawthorn Woods, IL (US);
Daniel J. Mcdonald, Cary, IL (US);
Harish Natarahjan, Streamwood, IL (US);
Robert J Novorita, Orland Park, IL (US);
Alan L. Wilson, Long Grove, IL (US);
Sanjay G. Desai, Lake in the Hills, IL (US);
John M. Gilbert, Hawthorn Woods, IL (US);
Daniel J. McDonald, Cary, IL (US);
Harish Natarahjan, Streamwood, IL (US);
Robert J Novorita, Orland Park, IL (US);
Alan L. Wilson, Long Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A system and method for effectively and reliably terminating a voice call in any burst within a multi-burst superframe. A transmitting unit generates a termination burst upon detecting a dekey event. The termination burst includes a data synchronization pattern, a slot type field indicating an end of a call, and an information field surrounding the data synchronization pattern and the slot type field. The information field is encoded from a predetermined voice encoder frame unique to the termination burst. Once all buffered voice information is transmitted, the termination burst is transmitted prior to the end of the multi-burst superframe. A base station or other receiving unit monitors the incoming signal. Upon detecting the data synchronization pattern, the receiving unit decodes the slot type field and the information field. The receiving unit determines whether the decoded slot type field is indicative of the end of a call, and whether a specific portion of the decoded information field matches the predetermined voice encoder frame. If both are true, the receiving unit terminates the call.