Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10771152 | System and method for optical system margin allocation | — | 2020-09-08 |
| 10355779 | Virtual optical network service with guaranteed availability | Inwoong Kim, Xi Wang, Olga Vassilieva, Qiong Zhang, Paparao Palacharla +1 more | 2019-07-16 |
| 10044440 | Noise margin monitor and control method | — | 2018-08-07 |
| 9780907 | Memory-efficient matrix-based optical path computation | — | 2017-10-03 |
| 9680596 | Span-wise spectrum management system and method | Paparao Palacharla, Motoyoshi Sekiya | 2017-06-13 |
| 9628879 | Hierarchical guided search for N-tuple disjoint optical paths | — | 2017-04-18 |
| 9614751 | Optical path computation based on a reachability matrix | Motoyoshi Sekiya, Xi Wang, Qiong Zhang, Chengyi Gao | 2017-04-04 |
| 9596761 | Different thermal zones in an opto-electronic module | — | 2017-03-14 |
| 8948598 | System and method for increasing upstream capacity in an optical network | — | 2015-02-03 |
| 8644704 | Method and system for an adaptive channel grid of an optical network | Olga Vassilieva, Motoyoshi Sekiya | 2014-02-04 |
| 8571419 | Method and system for flexible optical signal aggregation and transmission | — | 2013-10-29 |
| 8565599 | System and method for transmitting optical markers in a passive optical network system | — | 2013-10-22 |
| 8447182 | Multi-wavelength transponder with wavelength division multiplexing modules | Inwoong Kim, Takao Naito | 2013-05-21 |
| 8381042 | Method and apparatus for logging system characteristic data | — | 2013-02-19 |
| 8180223 | System and method for extending reach in a passive optical network | Stephen A. Smith | 2012-05-15 |
| 8041217 | System and method for managing wavelength drift in an optical network | — | 2011-10-18 |
| 8023823 | System and method for transmitting upstream traffic in an optical network | — | 2011-09-20 |
| 7970281 | System and method for managing different transmission architectures in a passive optical network | — | 2011-06-28 |
| 7949256 | Method and system for increasing downstream bandwidth in an optical network | Takao Naito | 2011-05-24 |
| 7920792 | System and method for managing communication in a hybrid passive optical network | Paparao Palacharla, Takao Naito | 2011-04-05 |
| 7715719 | System and method for transmitting traffic in a plurality of passive optical networks | Takao Naito | 2010-05-11 |
| 7684706 | System and method for traffic distribution in an optical network | Yoichi Akasaka, Takao Naito | 2010-03-23 |
| 7684705 | Distribution node for a wavelength-sharing network | — | 2010-03-23 |
| 7653309 | System and method for distributing traffic in an optical network | Stephen J. Brolin | 2010-01-26 |
| 7639946 | Distribution node for an optical network | — | 2009-12-29 |