H04B 10/5167
Duo-binary
Official title: {Duo-binary; Alternative mark inversion; Phase shaped binary transmission}
H04B10/5167 (Duo-binary) appears on 72 US grants and 80 published applications in this corpus.
Search patents in H04B- Granted patents
- 72
- Published applications
- 80
- Assignees
- 47
- Inventors
- 137
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 6 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 11 |
| 2005 | 2 | 12 |
| 2006 | 2 | 7 |
| 2007 | 7 | 4 |
| 2008 | 6 | 7 |
| 2009 | 6 | 7 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 5 | 4 |
| 2013 | 4 | 1 |
| 2014 | 2 | 2 |
| 2015 | 1 | 4 |
| 2016 | 3 | 3 |
| 2017 | 3 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 2 | 3 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical duobinary soft information receiver for NRZ modulation fiber transmission18 Nov 2025US 12,476,714 B2MaxLinear, Inc.
- Optical transmission device based on direct-sequence-spread-spectrum time-division-multiple-access and method thereof16 Jul 2024US 12,040,887 B2Hunan University of Technology and Business
- Electrical duobinary soft information receiver for NRZ modulation fiber transmission13 Feb 2024US 11,901,954 B2MaxLinear, Inc.
- Encoding and decoding communications traffic in a pulse amplitude modulation format and optical apparatus for same13 Jun 2023US 11,677,475 B2Telefonaktiebolaget LM Ericsson (publ)
- RoI-based optical wireless communication method and device7 Feb 2023US 11,575,445 B2Kookmin University Industry Academy Cooperation Foundation
- Electrical duobinary soft information receiver for nrz modulation fiber transmission12 Mar 2026US 2026/0074797 A1MaxLinear, Inc.
- Light source multiplexing for modulated optical communication24 Oct 2024US 2024/0356652 A1Signify Holding B. V.
- Electrical duobinary soft information receiver for nrz modulation fiber transmission6 Jun 2024US 2024/0187108 A1MaxLinear, Inc.
- Optical transmission device based on direct-sequence-spread-spectrum time-division-multiple-access and method thereof6 Jun 2024US 2024/0187119 A1Hunan University of Technology and Business
- Electrical duobinary soft information receiver for nrz modulation fiber transmission16 Jun 2022US 2022/0190931 A1MaxLinear, Inc.
Most cited
By later US patents
- Optical transmission system132US 5,543,952 ANippon Telegraph and Telephone Corporation · 1996
- Duo-binary signal encoding67US 5,917,638 ALucent Technologies Inc. · 1999
- Optical data transmitting apparatus and method58US 6,421,155 B1NEC Corporation · 2002
- Method for generating duobinary signal and optical transmitter using the same method55US 6,097,525 ANEC Corporation · 2000
- Transmission and reception of duobinary multilevel pulse-amplitude-modulated optical signals using subsequence-based encoder55US 6,445,476 B1StrataLight Communications, Inc. · 2002