Issued Patents All Time
Showing 26–50 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8447182 | Multi-wavelength transponder with wavelength division multiplexing modules | Martin Bouda, Inwoong Kim | 2013-05-21 |
| 8437273 | Allocating demand according to demand weight | Xi Wang, Paparao Palacharla | 2013-05-07 |
| 8369442 | Communicating a signal according to ASK modulation and PSK modulation | Olga Vassilieva | 2013-02-05 |
| 8347006 | Minimizing interconnections in a multi-shelf switching system | Qiong Zhang, Paparao Palacharla, Xi Wang | 2013-01-01 |
| 8340515 | Method and system for monitoring optical dispersion in an optical signal | Alexander Umnov, Niranjan Hanumanna | 2012-12-25 |
| 8335438 | Estimating frequency offset using a feedback loop | Inwoong Kim | 2012-12-18 |
| 8299816 | Data processing apparatus | Kazuo Yamada | 2012-10-30 |
| 8284479 | Optical amplifier card with pluggable pump laser modules | Youichi Akasaka | 2012-10-09 |
| 8218975 | Free-space DQPSK demodulator | Cechan Tian | 2012-07-10 |
| 8144626 | Determining disjoint paths with an optimized number of regenerators | Qiong Zhang, Xi Wang, Paparao Palacharla | 2012-03-27 |
| 8107815 | System and method for communicating wireless data utilizing a passive optical network | Youichi Akasaka, Satoshi Mizutani | 2012-01-31 |
| 8041229 | System and method for optoelectrical communication | Alexander Umnov, Dung Q. Tran | 2011-10-18 |
| 8041230 | System and method for optoelectrical communication | Alexander Umnov, Dung Q. Tran | 2011-10-18 |
| 7949256 | Method and system for increasing downstream bandwidth in an optical network | Martin Bouda | 2011-05-24 |
| 7936749 | Node device for transfering supervisory control information in photonic network | Toru Katagiri | 2011-05-03 |
| 7920792 | System and method for managing communication in a hybrid passive optical network | Paparao Palacharla, Martin Bouda | 2011-04-05 |
| 7912378 | Modulating a signal using a fractional phase modulator | Cechan Tian | 2011-03-22 |
| 7897805 | Polyisocyanate production method and polyisocyanate production system | Masaaki Sasaki, Fumiaki Hirata, Masato Saruwatari, Hirofumi Takahashi, Kouji Maeba +4 more | 2011-03-01 |
| 7860402 | Modulating a signal according to 2n-PSK modulation | Cechan Tian | 2010-12-28 |
| 7853147 | Information processing system, calculation node, and control method of information processing system | Toshiki Tanaka, Yasuhiko Aoki, Hideyuki Miyata, Kouichiro Amemiya | 2010-12-14 |
| 7813640 | Optical connection switching apparatus and management control unit thereof | Kouichirou Amemiya, Toru Katagiri, Toshiki Tanaka | 2010-10-12 |
| 7801393 | Monitoring modulator bias using photon absorption | Cechan Tian | 2010-09-21 |
| 7718145 | Polyisocyanate production system and gas treatment apparatus | Masaaki Sasaki, Hirofumi Takahashi, Kouji Maeba, Kouichirou Terada, Takashi Yamaguchi +1 more | 2010-05-18 |
| 7715709 | Optical switch and network system including the same | Kouichirou Amemiya, Toshiki Tanaka | 2010-05-11 |
| 7715719 | System and method for transmitting traffic in a plurality of passive optical networks | Martin Bouda | 2010-05-11 |