Chang Yi

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for generating CNM
- Patent number 9,860,147
- Issue date Jan 2, 2018
- Huawei Technologies Co., Ltd.
- Hua Yang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for processing calls
- Patent number 7,899,453
- Issue date Mar 1, 2011
- Huawei Technologies Co., Ltd.
- Zhifeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR GENERATING CNM
- Publication number 20150350049
- Publication date Dec 3, 2015
- Huawei Technologies Co., Ltd
- Hua YANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for processing calls
- Publication number 20080020777
- Publication date Jan 24, 2008
- Zhifeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE