Issued Patents 2018
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10090961 | Multi-channel optical cross-phase modulation compensator | Inwoong Kim, Olga Vassilieva, Paparao Palacharla, Tadashi Ikeuchi | 2018-10-02 |
| 10090927 | Digital signal processing circuit and signal processing device that includes a plurality of digital signal processing circuits | Hisao Nakashima, Yoshitaka Nomura, Tomofumi Oyama, Yi Ge, Yuichi Akiyama +1 more | 2018-10-02 |
| 10057012 | Error correction circuit and optical transmission system | Yi Ge, Hisao Nakashima | 2018-08-21 |
| 10050738 | Low noise colorless, directionless, contentionless reconfigurable optical add/drop multiplexer | Youichi Akasaka, Tadashi Ikeuchi | 2018-08-14 |
| 9906296 | Network controller and signal quality estimating method | Shoichiro Oda, Yasuhiko Aoki, Hisao Nakashima, Hiroki Oi | 2018-02-27 |
| 9887798 | Transmission apparatus, reception apparatus and modulation method | Yoshitaka Nomura, Hisao Nakashima, Yuichi Akiyama | 2018-02-06 |
| 9882642 | Optical remodulator that remodulates modulated optical signal and optical remodulation method | — | 2018-01-30 |
| 9871596 | Optical receiver and signal processing method | Daijiro Tanaka, Hideyuki Matsuura, Osamu Takeuchi | 2018-01-16 |
| 9857662 | Optical frequency shift device and method | Tomoyuki Kato, Shigeki Watanabe | 2018-01-02 |