H04B 10/2937
Systems with a repeater placed only at the beginning or the end
Official title: {Systems with a repeater placed only at the beginning or the end of the system, i.e. repeaterless systems, e.g. systems with only post and pre-amplification}
H04B10/2937 (Systems with a repeater placed only at the beginning or the end) appears on 15 US grants and 14 published applications in this corpus.
Search patents in H04B- Granted patents
- 15
- Published applications
- 14
- Assignees
- 10
- Inventors
- 40
- Latest grant
- 9 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 3 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Raman amplifier pumped with residual power in an optical communication system9 Apr 2019US 10,256,593 B2Facebook, Inc.
- Optical amplification apparatus, method for controlling same, optical receiver station, and optical transmission system20 Oct 2015US 9,166,679 B2Fujitsu Limited
- Unrepeatered long haul optical fiber transmission systems17 Sep 2013US 8,538,218 B2Corning Incorporated
- System and method for implementing a boosterless optical communication system22 Jun 2010US 7,742,223 B2Xtera Communications, Inc.
- System and method for implementing a high capacity unrepeatered optical communication system23 Feb 2010US 7,665,909 B2Xtera Communications, Inc.
- Raman amplifier pumped with residual power in an optical communication system29 Nov 2018US 2018/0342846 A1Facebook, Inc.
- Optical amplification apparatus, method for controlling same, optical receiver station, and optical transmission system4 Oct 2012US 2012/0248287 A1Fujitsu Limited
- Unrepeatered long haul optical fiber transmission systems15 Sep 2011US 2011/0222863 A1Corning Incorporated
- System and method for implementing a high capacity unrepeatered optical communication system19 Jun 2008US 2008/0145055 A1Xtera Communications, Inc.
- System and method for implementing a high capacity unrepeatered optical communication system29 Nov 2007US 2007/0274625 A1Xtera Communications, Inc.
Most cited
By later US patents
- Booster amplifier with spectral control for optical communications systems15US 6,633,430 B1Onetta, Inc. · 2003
- Optical intermediate amplifier for a communication system12US 3,949,315 A1976
- System for transmission over a repeaterless optical fiber line, with remote and local amplification11US 5,561,553 AAlcatel Submarcom · 1996
- Optical transmission system including repeatered and unrepeatered segments7US 7,574,140 B2Tyco Telecommunications (US) Inc. · 2009
- Optical transmission system6US 7,251,072 B2Fujitsu Limited · 2007