Issued Patents All Time
Showing 1–25 of 102 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308882 | Nonlinearity compensation circuit, and optical transceiver | Naoya Okada | 2025-05-20 |
| 12047115 | Polarization variation monitoring system and polarization variation monitoring method | Ichiro YOKOKURA, Junichi Sugiyama, Makoto Shimizu, Toshihiro Suzuki, Takeshi Noma +1 more | 2024-07-23 |
| 11956018 | Quantizer and optical transmitter | GUOXIU HUANG | 2024-04-09 |
| 11476946 | Signal processing device and transmission device | Yoshitaka Nomura, Nobukazu Koizumi, Daisuke Sasaki, Yasuo Ohtomo | 2022-10-18 |
| 11460750 | Optical modulator and control method of optical modulator | GUOXIU HUANG | 2022-10-04 |
| 11349632 | Transmission reception device and distortion compensation method | Yoshitaka Nomura | 2022-05-31 |
| 11309968 | Optical transmission device and optical transmission method | Anh Ha Ngo, Takafumi Terahara, Naoki AINAKA | 2022-04-19 |
| 11303483 | Transmission device and transmission method | GUOXIU HUANG | 2022-04-12 |
| 11159352 | Adaptive equalizer, optical receiver, and optical transmission system | Daisuke Sasaki, Nobukazu Koizumi | 2021-10-26 |
| 11146428 | Adaptive equalizer, optical receiver, and adaptive equalization method | Daisuke Sasaki, Nobukazu Koizumi | 2021-10-12 |
| 10873410 | Reception device and method of detecting supervisory control signal | Yi Ge, Takeshi Hoshida, Tomofumi Oyama, Yuichi Akiyama | 2020-12-22 |
| 10862592 | Optical receiver, optical transmission system, and reception processing method | Takeshi Hoshida | 2020-12-08 |
| 10708035 | Signal processing device and signal processing method | Tomofumi Oyama | 2020-07-07 |
| 10698228 | Transmission device, reception device, and transmission method | Tomofumi Oyama | 2020-06-30 |
| 10567077 | Imbalance compensation device, transmission device, and imbalance compensation method | Tomofumi Oyama, Takeshi Hoshida, Yoshitaka Nomura | 2020-02-18 |
| 10498459 | Optical transmitter and skew compensation method | Yoshitaka Nomura, Tomofumi Oyama, Yuichi Akiyama, Takeshi Hoshida | 2019-12-03 |
| 10439732 | Receiving device and phase-error compensation method | Tomofumi Oyama, Takeshi Hoshida | 2019-10-08 |
| 10419263 | Transmission system and method | Yi Ge, Takeshi Hoshida, Yuichi Akiyama | 2019-09-17 |
| 10396900 | Communication apparatus and method of controlling transmission signal | GUOXIU HUANG, Setsuo Yoshida, Takeshi Hoshida, Shoichiro Oda | 2019-08-27 |
| 10374703 | Transmission device and signal monitoring method | Shoichiro Oda, Takeshi Hoshida, Yi Ge | 2019-08-06 |
| 10348407 | Receiving device and receiving method | Takeshi Hoshida | 2019-07-09 |
| 10341027 | Optical transmitter and control method for optical transmitter | GUOXIU HUANG, Yuichi Akiyama, Takeshi Hoshida | 2019-07-02 |
| 10277328 | Signal processing device used in optical receiver and signal processing method | Tomofumi Oyama, Yoshitaka Nomura, Takeshi Hoshida, Takahito Tanimura | 2019-04-30 |
| 10277313 | Transmission apparatus, transmission system, and transmission control method | Takeshi Hoshida | 2019-04-30 |
| 10256903 | Network controller and signal quality estimating method | Shoichiro Oda, Yasuhiko Aoki, Takeshi Hoshida, Hiroki Oi | 2019-04-09 |