H04B 10/077
Using a supervisory or additional signal
Official title: using a supervisory or additional signal
H04B10/077 (Using a supervisory or additional signal) appears on 1,857 US grants and 1,743 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,857
- Published applications
- 1,743
- Assignees
- 536
- Inventors
- 3,323
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 16 | 0 |
| 1995 | 14 | 0 |
| 1996 | 26 | 0 |
| 1997 | 15 | 0 |
| 1998 | 32 | 0 |
| 1999 | 35 | 0 |
| 2000 | 25 | 0 |
| 2001 | 41 | 15 |
| 2002 | 45 | 74 |
| 2003 | 49 | 79 |
| 2004 | 49 | 93 |
| 2005 | 49 | 53 |
| 2006 | 60 | 44 |
| 2007 | 60 | 37 |
| 2008 | 49 | 38 |
| 2009 | 28 | 46 |
| 2010 | 45 | 31 |
| 2011 | 30 | 31 |
| 2012 | 33 | 54 |
| 2013 | 44 | 48 |
| 2014 | 68 | 83 |
| 2015 | 69 | 72 |
| 2016 | 73 | 93 |
| 2017 | 99 | 89 |
| 2018 | 99 | 96 |
| 2019 | 120 | 92 |
| 2020 | 95 | 103 |
| 2021 | 88 | 83 |
| 2022 | 93 | 105 |
| 2023 | 80 | 86 |
| 2024 | 66 | 85 |
| 2025 | 74 | 69 |
| 2026 | 45 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 10/0775Performance monitoring and measurement of transmission parameters705
- H04B 10/0773Network aspects315
- H04B 10/0771Fault location on the transmission path239
- H04B 10/0777Monitoring line amplifier or line repeater equipment235
- H04B 10/0779Monitoring line transmitter or line receiver equipment165
Recent patents
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- Method and system for monitoring non-linear effects along an optical communication line22 Sep 2026US 12,744,599 B2Huawei Technologies Co., Ltd.
- Automated validation for standalone line-site deployment15 Sep 2026US 12,739,030 B2Ciena Corporation
- Pump modulation for optical amplifier link communication8 Sep 2026US 12,731,953 B2II-Vi Delaware, Inc.
- Simulated light source generation device, simulated light source generation method, and recording medium1 Oct 2026US 2026/0303207 A1NEC Corporation
- Detection of anomalous events in optical networks1 Oct 2026US 2026/0303208 A1Nokia Solutions and Networks Oy
- Optical transmission device, optical transmission system, optical module, and optical controller1 Oct 2026US 2026/0303220 A11FINITY Inc.
- Optical Communication System And Reset Method24 Sep 2026US 2026/0291622 A1Nippon Telegraph and Telephone Corporation
- Hollow core fiber-based optical network line system with multiple multiplexed optical supervisory channels17 Sep 2026US 2026/0280695 A1Microsoft Technology Licensing, LLC
Most cited
By later US patents
- Method and system for detecting optical faults within the optical domain of a fiber communication network248US 6,005,694 AMCI WorldCom, Inc. · 1999
- Method and system for transporting ancillary network data160US 6,108,113 AMCI Communications Corporation · 2000
- Method and apparatus for monitoring performance of optical transmission systems159US 5,513,029 ANorthern Telecom Limited · 1996
- Adaptive power supply for avalanche photodiode143US 6,222,660 B1Tektronix, Inc. · 2001
- Fault detection for all-optical add-drop multiplexer125US 5,867,289 AInternational Business Machines Corporation · 1999