H04B 2210/254
Before the transmission line, i.e. pre-compensation
Official title: before the transmission line, i.e. pre-compensation
H04B2210/254 (Before the transmission line, i.e. pre-compensation) appears on 150 US grants and 111 published applications in this corpus.
Search patents in H04B- Granted patents
- 150
- Published applications
- 111
- Assignees
- 75
- Inventors
- 281
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 5 |
| 2002 | 8 | 1 |
| 2003 | 3 | 6 |
| 2004 | 4 | 8 |
| 2005 | 3 | 3 |
| 2006 | 2 | 7 |
| 2007 | 3 | 4 |
| 2008 | 8 | 0 |
| 2009 | 5 | 6 |
| 2010 | 6 | 4 |
| 2011 | 0 | 5 |
| 2012 | 4 | 6 |
| 2013 | 5 | 3 |
| 2014 | 7 | 7 |
| 2015 | 10 | 4 |
| 2016 | 6 | 6 |
| 2017 | 2 | 7 |
| 2018 | 6 | 6 |
| 2019 | 7 | 4 |
| 2020 | 2 | 5 |
| 2021 | 5 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 4 |
| 2024 | 3 | 3 |
| 2025 | 2 | 0 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical signal transmission device and method based on digital predistortion in symbol domain26 May 2026US 12,640,761 B21FINITY Inc.
- Optical transmission system, transmission apparatus, receiving apparatus and method for device characteristic estimation19 May 2026US 12,634,015 B2NTT, Inc.
- Apparatus and method for optical communication using organic photoelectric conversion device27 Jan 2026US 12,537,605 B2Incheon National University Research & Business Foundation
- Driver amplifier1 Jul 2025US 12,348,204 B2Huawei Technologies Co., Ltd.
- Efficient nonlinear equalizer for transmitter predistortion22 Apr 2025US 12,283,996 B1Cisco Technology, Inc.
- Apparatus and method for optical communication using organic photoelectric conversion device14 May 2026US 2026/0135621 A1Incheon National University Research & Business Foundation
- Optical Transmission System, Optical Transmission Method, Transmitter, and Receiver14 Nov 2024US 2024/0380491 A1Nippon Telegraph and Telephone Corporation
- Optical transmission system, transmission apparatus, receiving apparatus and method for device characteristic estimation22 Aug 2024US 2024/0283544 A1Nippon Telegraph and Telephone Corporation
- Optical signal transmission device and method based on digital predistortion in symbol domain15 Feb 2024US 2024/0056109 A1Fujitsu Limited
- Optical transmission system, control apparatus, optical transmission method and program14 Sep 2023US 2023/0291482 A1Nippon Telegraph and Telephone Corporation
Most cited
By later US patents
- Apparatus and method for delivery of dispersion-compensated ultrashort optical pulses with high peak power220US 6,249,630 B1Imra America, Inc. · 2001
- Optimized optical transmission system for high capacity transmission129US 5,717,510 AFujitsu Limited · 1998
- Apparatus and method for delivery of dispersion compensated ultrashort optical pulses with high peak power127US 5,862,287 AImra America, Inc. · 1999
- Multiple wavelength division multiplexing signal compensation system and method using same120US 5,224,183 AAlcatel Network Systems, Inc. · 1993
- Optical systems and methods based upon temporal stretching, modulation and recompression of ultrashort pulses110US 4,928,316 ABell Communications Research, Inc. · 1990