H04B 10/50593
To control the modulating signal amplitude including amplitude distortion
Official title: {to control the modulating signal amplitude including amplitude distortion}
H04B10/50593 (To control the modulating signal amplitude including amplitude distortion) appears on 53 US grants and 39 published applications in this corpus.
Search patents in H04B- Granted patents
- 53
- Published applications
- 39
- Assignees
- 45
- Inventors
- 83
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 6 |
| 2005 | 2 | 3 |
| 2006 | 4 | 0 |
| 2007 | 2 | 4 |
| 2008 | 2 | 3 |
| 2009 | 0 | 1 |
| 2010 | 4 | 1 |
| 2011 | 3 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 3 |
| 2019 | 2 | 4 |
| 2020 | 6 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical transmission system, transmission apparatus, receiving apparatus and method for device characteristic estimation19 May 2026US 12,634,015 B2NTT, Inc.
- Phase response measurement method and apparatus24 Jan 2023US 11,563,496 B2Fujitsu Limited
- Pluggable optical module and optical communication system8 Feb 2022US 11,245,474 B2NEC Corporation
- Optical transceiver and method for setting same1 Feb 2022US 11,239,910 B2NEC Corporation
- PAM-4 transmitter precoder for 1+0.5D PR channels21 Jul 2020US 10,720,994 B2International Business Machines Corporation
- Optical transmission system, transmission apparatus, receiving apparatus and method for device characteristic estimation22 Aug 2024US 2024/0283544 A1Nippon Telegraph and Telephone Corporation
- Phase response measurement method and apparatus5 May 2022US 2022/0140912 A1Fujitsu Limited
- Optical transceiver and method for setting same25 Feb 2021US 2021/0058152 A1NEC Corporation
- Pluggable optical module and optical communication system4 Jun 2020US 2020/0177283 A1NEC Corporation
- Electro-absorption modulator with integrated control loop for linearization and temperature compensation16 Apr 2020US 2020/0116932 A1ElectroPhotonic-IC Inc.
Most cited
By later US patents
- Method of and device for driving optical modulator, and optical communications system118US 5,917,637 AFujitsu Limited · 1999
- Adaptive predistortion control for optical external modulation71US 5,850,305 AScientific-Atlanta, Inc. · 1998
- Apparatus for linearization of optic modulators using a feed-forward predistortion circuit53US 5,327,279 AUnited Technologies Corporation · 1994
- Wavelength division multiplexed system employing optimal channel modulation40US 5,946,119 ATyco Submarine Systems Ltd. · 1999
- Optical transmitter and optical communication system using the same36US 6,583,910 B1Oki Electric Industry Co., Ltd. · 2003