Qinghong He

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
IMS budget control for a media change during an IMS session
- Patent number 8,295,456
- Issue date Oct 23, 2012
- Alcatel Lucent
- Yigang Cai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
IMS gateway systems and methods
- Patent number 8,139,735
- Issue date Mar 20, 2012
- Alcatel Lucent
- Yigang Cai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
IMS GATEWAY SYSTEMS AND METHODS
- Publication number 20070280447
- Publication date Dec 6, 2007
- Yigang Cai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMS budget control for a media change during an IMS session
- Publication number 20070174400
- Publication date Jul 26, 2007
- LUCENT TECHNOLOGIES INC.
- Yigang Cai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE