Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10020907 | Transport functions virtualization for wavelength division multiplexing (WDM)-based optical networks | Wei Wei, Lei Lan | 2018-07-10 |
| 9794192 | Method and device for allocating packet switching resource | Zhiyong Huang | 2017-10-17 |
| 9350481 | Transport functions virtualization for wavelength division multiplexing (WDM)-based optical networks | Wei Wei, Lei Lan | 2016-05-24 |
| 9184860 | Time synchronization method and system, and node device | Xinyu Shen, Jianmei Zhang | 2015-11-10 |
| 8891968 | Method and apparatus for loading, detecting, and monitoring channel-associated optical signals | — | 2014-11-18 |
| 8817823 | Method and device for time synchronization | Xinyu Shen, Jianmei Zhang, Tianhai Chang, Hao Liu, Zhiguo Liu | 2014-08-26 |
| 8380070 | Upgrading method, system and apparatus of low-density wavelength division multiplexing system | Zhiyong Huang, Zhiwen Chang, Yuzhi Jin, Da He, Jianmei Zhang +4 more | 2013-02-19 |
| 8280248 | Method and apparatus for loading, detecting, and monitoring channel-associated optical signals | — | 2012-10-02 |
| 8254778 | Method, apparatus and system for handling fiber line fault | Hao Wang, Yiquan Lu | 2012-08-28 |
| 8103161 | Method, device and system for group optical channel shared protection | — | 2012-01-24 |
| 8045851 | Method and apparatus for automatic restoration detection and automatic restoration of optical communication system | Yiquan Lu, Hao Wang, Juan Chen | 2011-10-25 |
| 8036538 | Method and optical amplifier for laser safety protection and method for loading identification signal | Hao Wang, Yiquan Lu | 2011-10-11 |
| 7796502 | Method and device for implementing Och-Spring in wavelength division multiplexing systems | — | 2010-09-14 |
| 7656910 | Add drop multiplexing method, apparatus and system based on GFP | — | 2010-02-02 |
| 7603034 | Optical identification demodulation method and system | Shuqiang Shen | 2009-10-13 |