H04B 10/671
For controlling the input optical signal
Official title: {for controlling the input optical signal}
H04B10/671 (For controlling the input optical signal) appears on 419 US grants and 372 published applications in this corpus.
Search patents in H04B- Granted patents
- 419
- Published applications
- 372
- Assignees
- 216
- Inventors
- 868
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 1 |
| 2002 | 9 | 9 |
| 2003 | 11 | 16 |
| 2004 | 9 | 14 |
| 2005 | 9 | 18 |
| 2006 | 15 | 6 |
| 2007 | 8 | 11 |
| 2008 | 7 | 17 |
| 2009 | 9 | 12 |
| 2010 | 7 | 8 |
| 2011 | 13 | 19 |
| 2012 | 9 | 11 |
| 2013 | 15 | 11 |
| 2014 | 13 | 7 |
| 2015 | 15 | 24 |
| 2016 | 13 | 15 |
| 2017 | 20 | 12 |
| 2018 | 19 | 28 |
| 2019 | 30 | 31 |
| 2020 | 22 | 18 |
| 2021 | 35 | 17 |
| 2022 | 15 | 20 |
| 2023 | 23 | 18 |
| 2024 | 15 | 12 |
| 2025 | 4 | 10 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical signal receiving apparatus, method and system, optical line terminal, computer-readable storage medium25 Aug 2026US 12,719,585 B2Zte Corporation
- Altering refractive index of an expanded beam connector lens28 Jul 2026US 12,695,506 B2International Business Machines Corporation
- System for forming a configurable optical amplifier16 Jun 2026US 12,658,663 B2Huawei Technologies Co., Ltd.
- Optical module5 May 2026US 12,621,056 B2Hisense Broadband Multimedia Technologies Co., Ltd.
- Optical transceiver24 Mar 2026US 12,587,285 B2Cig Photonics Japan Limited
- An optical wireless communication device17 Sep 2026US 2026/0280704 A1Signify Holding B. V.
- Dynamic Spectral Equalization in Ladder Protected Optical Networks16 Jul 2026US 2026/0205206 A1Ciena Corporation
- Optical transmitter, optical receiver and optical transceiver chip9 Jul 2026US 2026/0197086 A1Silith Technology Pte. Ltd.
- Communication of wavelength channels based on labeling of wavelength channels11 Jun 2026US 2026/0163649 A1Nokia Solutions and Networks Oy
- Controlling receiver local oscillator power in a coherent modem to improve snr and increase receiver dynamic range28 May 2026US 2026/0149506 A1Ciena Corporation
Most cited
By later US patents
- Optimized optical transmission system for high capacity transmission129US 5,717,510 AFujitsu Limited · 1998
- Wavelength division multiplexing optical communications systems92US 4,592,043 AAT&T Bell Laboratories · 1986
- Optical frequency modulation system86US 4,561,119 AInternational Standard Electric Corporation · 1985
- Signal level control circuitry for a fiber communications system73US 5,267,071 AScientific-Atlanta, Inc. · 1993
- Optical imaging transmitter with brightness enhancement68US 10,222,475 B2Ouster, Inc. · 2019