Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12348093 | Three-phase asynchronous motor squirrel-cage rotor structure capable of reducing starting current and motor | Zhifeng Zhang, Hongwei Deng, Zhen Wang, Lixia Yao, Heng Wang | 2025-07-01 |
| 9826908 | Devices, systems and methods for testing cardiac exercise functions | — | 2017-11-28 |
| 7266225 | Face direction estimation using a single gray-level image | Roberto Mariani | 2007-09-04 |
| 6988201 | Method and apparatus for watermarking wavetable synthesis architectures | Changsheng Xu, Qibin Sun | 2006-01-17 |
| 6748533 | Method and apparatus for protecting the legitimacy of an article | Qibin Sun, Huijie Deng | 2004-06-08 |
| 6707933 | Face direction estimation using a single gray-level image | Roberto Mariani | 2004-03-16 |
| 6678389 | Method and apparatus for embedding digital information in digital multimedia data | Qibin Sun, Huijie Deng | 2004-01-13 |
| 6674861 | Digital audio watermarking using content-adaptive, multiple echo hopping | Changsheng Xu, Qibin Sun, Kai Xin, Haizhou Li | 2004-01-06 |
| 6397181 | Method and apparatus for voice annotation and retrieval of multimedia data | Haizhou Li, Arcot Desai Narasimhalu | 2002-05-28 |