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:
Aug. 15, 2006
Filed:
Sep. 25, 2002
Branislav Ivanic, Mountain View, CA (US);
Eli Jacobi, Tel Aviv, IL;
Peter Kozdon, Santa Clara, CA (US);
Noboru Nishiya, San Jose, CA (US);
Christoph A. Aktas, Augsburg, DE;
Branislav Ivanic, Mountain View, CA (US);
Eli Jacobi, Tel Aviv, IL;
Peter Kozdon, Santa Clara, CA (US);
Noboru Nishiya, San Jose, CA (US);
Christoph A. Aktas, Augsburg, DE;
Siemens Communications, Inc., Boca Raton, FL (US);
Abstract
A system and a method for quantitatively measuring voice transmission quality within a voice-over-data-network such as a telephony-enabled LAN utilize speech recognition to measure the quality of voice transmission. A first aspect of the invention involves determining the suitability of the LAN for voice communications. A voice sample is selected by a first terminal and is transmitted to a second terminal on the LAN a number of times. The first terminal introduces an incrementally larger quantity of noise into each transmission of the voice packet. The second terminal performs speech recognition for each successively received voice sample and determines the accuracy for each speech recognition session. The amount of noise which drops the speech recognition accuracy below a threshold level provides a measure of the suitability of the LAN for voice communications. During normal operation of the LAN, speech recognition accuracy tests are performed between various endpoints to monitor voice transmission quality.