Zhihong Qian

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Transcoders and mixers for voice-over-IP conferencing
- Patent number 8,077,636
- Issue date Dec 13, 2011
- Nortel Networks Limited
- Mohamed Samy El-Hennaway
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transcoders and mixers for voice-over-IP conferencing
- Patent number 7,619,995
- Issue date Nov 17, 2009
- Nortel Networks Limited
- Mohamed Samy El-Hennawey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
TRANSCODERS AND MIXERS FOR VOICE-OVER-IP CONFERENCING
- Publication number 20120076054
- Publication date Mar 29, 2012
- Mohamed Samy El-Hennawey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transcoders and mixers for Voice-over-IP conferencing
- Publication number 20100111074
- Publication date May 6, 2010
- Nortel Networks Limited
- Mohamed Samy El-Hennawey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE