Branislav M Ivanic, Age 70131 Frederick Ct, Mountain View, CA 94043

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131 Frederick Ct, Mountain View, CA 94043 (650) 964-3264 (650) 391-4387

1721 California St #22, Mountain View, CA 94041 (650) 964-3264

Nashville, TN

Santa Clara, CA

Sunnyvale, CA

131 Frederick Ct, Mountain View, CA 94043 (650) 248-0422

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Position: Professional/Technical

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Degree: Associate degree or higher

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Us Patents

Apparatus And Method For Quantitative Measurement Of Voice Quality In Packet Network Environments

US Patent:
2004005, Mar 25, 2004
Filed:
Sep 25, 2002
Appl. No.:
10/255309
Inventors:
Branislav Ivanic - Mountain View CA, US
Eli Jacobi - Tel Aviv, IL
Peter Kozdon - Santa Clara CA, US
Noboru Nishiya - San Jose CA, US
Christoph Aktas - Augsburg, DE
International Classification:
G10L015/12
US Classification:
704/236000
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.

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