Yunfeng Xu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ethernet communication system and method based on MMC/SD interface
- Patent number 9,503,309
- Issue date Nov 22, 2016
- China Unionpay Co., Ltd.
- Hongfeng Chai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ETHERNET COMMUNICATION SYSTEM AND METHOD BASED ON MMC/SD INTERFACE
- Publication number 20130325994
- Publication date Dec 5, 2013
- Hongfeng Chai
- G06 - COMPUTING CALCULATING COUNTING