De Ouyang

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Embedding and detecting hidden information
- Patent number 8,538,068
- Issue date Sep 17, 2013
- Sursen Corp.
- Donglin Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Embedding and detecting hidden information
- Patent number 8,311,265
- Issue date Nov 13, 2012
- Beijing Sursen International Information Tech Co.
- Donglin Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Embedding and Detecting Hidden Information
- Publication number 20130028466
- Publication date Jan 31, 2013
- SURSEN CORP.
- Donglin Wang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
EMBEDDING AND DETECTING HIDDEN INFORMATION
- Publication number 20080310672
- Publication date Dec 18, 2008
- Donglin Wang
- G06 - COMPUTING CALCULATING COUNTING