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:
Jan. 29, 2013
Filed:
Jun. 28, 2010
Christian Sgraja, Nu-Ulm, DE;
Christoph a Joetten, Wadern, DE;
Marc W Werner, Nuremberg, DE;
Christian Pietsch, Nuremberg, DE;
Christian Sgraja, Nu-Ulm, DE;
Christoph A Joetten, Wadern, DE;
Marc W Werner, Nuremberg, DE;
Christian Pietsch, Nuremberg, DE;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A system and method is provided for obtaining a message type identifier embedded in a vocoder packet via a speech codec (in-band) such as found in a wireless communication network. The vocoder packet is received and decoded. The decoded vocoder packet is filtered until a synchronization signal is detected, with the filtering comprising correlating the decoded vocoder packet with a predetermined sequence to generate the synchronization signal. The polarity of the synchronization signal is determined, and the message type identifier is derived based on the polarity of the detected synchronization signal. A first polarity identifies a first message type, and a second polarity identifies a second message type.