Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9432224 | Method and apparatus for low-complexity ISI estimation using sparse discontinuous time-domain pilots | Jeebak Mitra | 2016-08-30 |
| 9419719 | Transmitter apparatus and method | Zhiping Jiang, Chen-An Chen, Chuandong Li | 2016-08-16 |
| 9385896 | Method and apparatus for low-complexity quasi-reduced state soft-output equalizer | Jeebak Mitra | 2016-07-05 |
| 9350450 | Bit loading for optical discrete multi-tone transmission | Chen Chen, Mahdi Zamani, Chuandong Li | 2016-05-24 |
| 9300407 | Channel estimation for optical orthogonal frequency division multiplexing systems | Mahdi Zamani, Chuandong Li | 2016-03-29 |
| 9236973 | Linear dispersion polarization-time codes and equalization in polarization multiplexed coherent optical system | Mahdi Zamani, Chuandong Li | 2016-01-12 |
| 9231787 | Method and apparatus with improved estimation accuracy and robustness for fine frequency offset estimation in coherent receivers | Mahdi Zamani, Chuandong Li | 2016-01-05 |
| 9225432 | System and method for a multi-wavelength coherent receiver | Chen-An Chen, Chuandong Li | 2015-12-29 |
| 9112742 | Low-complexity, adaptive, fractionally spaced equalizer with non-integer sampling | Syed Faisal Ali Shah, Chuandong Li | 2015-08-18 |
| 9106503 | Method and apparatus for recovering time-domain hybrid modulated QAM signals | Chuandong Li | 2015-08-11 |
| 9025969 | Method with improved phase robustness in coherent detected optical system | Chuandong Li, Yuanjie Chen, Yi Cai, Fei Zhu | 2015-05-05 |
| 8837957 | Method and apparatus of using digital equalizer for cascaded wavelength selective switch compensation | Yanming Li, Chuandong Li, Fei Zhu | 2014-09-16 |
| 8767575 | Method and apparatus for broadband carrier frequency and phase recovery in coherent optical system | Chuandong Li, Fei Zhu, Yusheng Bai | 2014-07-01 |
| 8737847 | Method and apparatus of using joint timing recovery for a coherent optical system | Chuandong Li, Fei Zhu, Yu Sheng Bai | 2014-05-27 |
| 8738956 | Method and apparatus for updating a fractional time interval using time-domain interpolators in optical communications | Yuanjie Chen, Chuandong Li, Fei Zhu, Yu Sheng Bai | 2014-05-27 |
| 8538279 | Method and apparatus for carrier phase estimation and correction in a coherent optical system | Chuandong Li, Fei Zhu, Yu Sheng Bai | 2013-09-17 |
| 8391726 | Method and apparatus for frame detection and polarization separation | Yuanjie Chen, Chuandong Li, Fei Zhu, Yu Sheng Bai | 2013-03-05 |
| 8340534 | Side band pilot tone for digital signal processing in polarization multiplexed coherent optical communication system | Chuandong Li, Fei Zhu, Yusheng Bai | 2012-12-25 |
| 8331803 | Clock recovery method for polarization multiplexed coherent optical communications | Chuandong Li | 2012-12-11 |
| 6697187 | Method and apparatus for Raman amplifier gain control | Saeid Seydnejad | 2004-02-24 |