Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9025467 | Hitless protection for traffic received from 1+1 protecting line cards in high-speed switching systems | Junqiang Hu, Philip Nan Ji, Ting Wang | 2015-05-05 |
| 9002195 | Solution for hitless protection in high-speed OTN framer and front-end | Junqiang Hu, Philip Nan Ji, Ting Wang | 2015-04-07 |
| 8995832 | Transponder Aggregator-based optical loopback in a MD-ROADM | Philip Nan Ji, Ting Wang | 2015-03-31 |
| 8977123 | 2-step-optimization procedure for routing and wavelength assignment with combined dedicated shared protections in multi-cable multi-fiber optical WDM networks | Ankitkumar Patel, Philip Nan Ji, Daisuke Taniguchi | 2015-03-10 |
| 8879906 | Optimal combined 2R/3R regenerators placement method for line network topologies in optical WDM networks | Ankitkumar Patel, Philip Nan Ji, Ting Wang | 2014-11-04 |
| 8873962 | Method for traffic grooming, wavelength assignment and spectrum allocation | Ankitkumar Patel, Philip Nan Ji, Jason P. Jue, Ting Wang | 2014-10-28 |
| 8787762 | Optical-layer traffic grooming at an OFDM subcarrier level with photodetection conversion of an input optical OFDM to an electrical signal | Philip Nan Ji, Dayou Qian, Ankitkumar Patel, Ting Wang | 2014-07-22 |
| 8725006 | Digital signal-to-signal beat noise reduction for filter-less coherent receiving system | Yue-Kai Huang, Ezra Ip, Dayou Qian, Philip Nan Ji, Tsutomu Tajima | 2014-05-13 |
| 8718474 | Chromatic dispersion compensation using sign operations and lookup tables | Dayou Qian, Junqiang Hu, Ting Wang, Tsutomu Tajima | 2014-05-06 |
| 8611743 | Optical-layer traffic grooming in flexible optical networks | Philip Nan Ji, Dayou Qian, Ankitkumar Patel, Ting Wang | 2013-12-17 |
| 8600242 | Power optimization of optical receivers | Philip Nan Ji, Kouichi Suzuki, Ezra Ip, Ting Wang | 2013-12-03 |
| 8538267 | ROADM transponder aggregator systems and methods of operation | Philip Nan Ji, Ting Wang | 2013-09-17 |
| 8290373 | Wavelength division multiplexer and regenerative repeating method in wavelength division multiplexing network | — | 2012-10-16 |
| 8285145 | Modular colorless and directionless multi-degree reconfigurable optical add/drop multiplexer node with in-service upgradeability | Philip Nan Ji, Hiromitsu Sugahara, Ting Wang | 2012-10-09 |
| 7280761 | Device and method for setting add signal level for OADM system | — | 2007-10-09 |
| 6574017 | Wavelength division multiplex transmitter | — | 2003-06-03 |