H04H 20/69
Optical systems
H04H20/69 (Optical systems) appears on 210 US grants and 225 published applications in this corpus.
Search patents in H04H- Granted patents
- 210
- Published applications
- 225
- Assignees
- 86
- Inventors
- 267
- Latest grant
- 13 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 1 |
| 2002 | 9 | 13 |
| 2003 | 8 | 8 |
| 2004 | 5 | 9 |
| 2005 | 2 | 9 |
| 2006 | 4 | 6 |
| 2007 | 5 | 66 |
| 2008 | 27 | 40 |
| 2009 | 12 | 18 |
| 2010 | 17 | 5 |
| 2011 | 14 | 3 |
| 2012 | 7 | 7 |
| 2013 | 7 | 6 |
| 2014 | 6 | 4 |
| 2015 | 7 | 7 |
| 2016 | 10 | 3 |
| 2017 | 6 | 4 |
| 2018 | 6 | 5 |
| 2019 | 4 | 3 |
| 2020 | 4 | 3 |
| 2021 | 4 | 3 |
| 2022 | 3 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- High throughput network encryption using CCAP13 Aug 2024US 12,063,398 B2Time Warner Cable Enterprises LLC
- System and methods for mapping and demapping digitized signals for optical transmission5 Sep 2023US 11,750,356 B2Cable Television Laboratories, Inc.
- Digital optical transmitter for digitized narrowcast signals1 Nov 2022US 11,489,711 B2ARRIS Enterprises LLC
- Distributed scheduling in remote PHY11 Oct 2022US 11,469,938 B1Harmonic, Inc.
- System and methods for mapping and demapping digitized signals for optical transmission14 Jun 2022US 11,362,797 B2Cable Television Laboratories, Inc.
- Frequency multiplexed active taps26 Sep 2024US 2024/0323060 A1
- System and methods for mapping and demapping digitized signals for optical transmission22 Sep 2022US 2022/0303102 A1Cable Television Laboratories, Inc.
- Method of transporting digital data over coaxial cable13 May 2021US 2021/0143865 A1Technetix B.V.
- Method of segmenting an access network of a hybrid fiber coaxial network13 May 2021US 2021/0143910 A1Technetix B.V.
- System and methods for mapping and demapping digitized signals for optical transmission28 Jan 2021US 2021/0028915 A1Cable Television Laboratories, Inc.
Most cited
By later US patents
- Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith320US 6,275,990 B1ADC Telecommunications, Inc. · 2001
- Channel selection for a hybrid fiber coax network264US 6,334,219 B1ADC Telecommunications, Inc. · 2001
- Dynamic bandwidth allocation220US 7,069,577 B2SDC Telecommunications, Inc. · 2006
- Dynamic bandwidth allocation205US 6,279,158 B1ADC Telecommunications, Inc. · 2001
- Multi-point to point communication system with remote unit burst identification186US 6,330,241 B1ADC Telecommunications, Inc. · 2001