Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE41063 | Optical layer multicasting using a multiple sub-carrier header and multicast switch with active header insertion via reflective single sideband optical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2009-12-29 |
| 7039316 | Optical layer multicasting using a multiple sub-carrier header and a multicast switch with active header insertion via reflective single sideband optical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2006-05-02 |
| 6934472 | Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion | Gee-Kung Chang, Arshad M. Chowdhury | 2005-08-23 |
| 6873797 | Optical layer multicasting | Gee-Kung Chang, Arshad M. Chowdhury | 2005-03-29 |
| 6850707 | Secure optical layer multicasting to effect survivability | Gee-Kung Chang, Arshad M. Chowdhury | 2005-02-01 |
| 6850515 | Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion via light circulation | Gee-Kung Chang, Arshad M. Chowdhury | 2005-02-01 |
| 6819666 | Optical layer multicasting using multiple sub-carrier headers with header detection, deletion, and insertion via reflective single sideband optical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2004-11-16 |
| 6813276 | Optical layer multicasting using a single sub-carrier header with active header detection, deletion, and re-insertion via a circulating optical path | Gee-Kung Chang, Arshad M. Chowdhury | 2004-11-02 |
| 6768871 | Optical layer multicasting using a multicast switch to effect survivability and security | Gee-Kung Chang, Arshad M. Chowdhury | 2004-07-27 |
| 6766114 | Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion via single sideband optical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2004-07-20 |
| 6760549 | Optical layer multicasting using a multiple sub-carrier header and multicasting switch | Gee-Kung Chang, Arshad M. Chowdhury | 2004-07-06 |
| 6757496 | Optical layer multicasting using a single sub-carrier header and an optical multicasting switch | Gee-Kung Chang, Arshad M. Chowdhury | 2004-06-29 |
| 6757497 | Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion via reflective single sideband optical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2004-06-29 |
| 6757495 | Optical layer multicasting using a multiple sub-carrier header and a multicast switch with active header insertion via single sideband optical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2004-06-29 |
| 6754450 | Optical layer multicasting using a single sub-carrier header with active header detection, deletion, and new header insertion via opto-electrical processing | Gee-Kung Chang, Arshad M. Chowdhury | 2004-06-22 |
| 6754449 | Optical layer multicasting switch | Gee-Kung Chang, Arshad M. Chowdhury | 2004-06-22 |
| 6331905 | Network switch failure restoration | Thomas Stern | 2001-12-18 |
| 6271946 | Optical layer survivability and security system using optical label switching and high-speed optical header generation and detection | Gee-Kung Chang, Richard Graveman, Clyde Monma | 2001-08-07 |
| 6233075 | Optical layer survivability and security system | Gee-Kung Chang, Richard Graveman, Clyde Monma | 2001-05-15 |
| 6226111 | Inter-ring cross-connect for survivable multi-wavelength optical communication networks | Gee-Kung Chang, John Gamelin, Muhammed Iqbal, Mamun R. Rashid Khandker | 2001-05-01 |
| 6219161 | Optical layer survivability and security system | Gee-Kung Chang, Richard Graveman, Clyde Monma | 2001-04-17 |
| 6160651 | Optical layer survivability and security system using optical label switching and high-speed optical header reinsertion | Gee-Kung Chang, Richard Graveman, Clyde Monma | 2000-12-12 |
| 6075631 | Hitless reconfiguration of a wavelength division multiplexed optical communication network | Krishna Bala, Gee-Kung Chang, Michael Post, Chien-Chung Shen, John Yee-Keung Wei | 2000-06-13 |
| 5999288 | Connection set-up and path assignment in wavelength division multiplexed ring networks | Krishna Bala, Gee-Kung Chang | 1999-12-07 |
| 5825517 | Parametric wavelength interchanging cross-connect | Neophytos Antoniades, Krishna Bala, Sung-Joo Ben Yoo | 1998-10-20 |