H04B 3/142
Using echo-equalisers
Official title: {using echo-equalisers, e.g. transversal}
H04B3/142 (Using echo-equalisers) appears on 34 US grants and 21 published applications in this corpus.
Search patents in H04B- Granted patents
- 34
- Published applications
- 21
- Assignees
- 27
- Inventors
- 60
- Latest grant
- 2 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 4 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and systems for use of common mode rejection (CMR) for echo cancellation in uplink communications2 Nov 2021US 11,165,464 B2MaxLinear, Inc.
- Hybrid fibre coaxial fault classification in cable network environments4 Jun 2019US 10,312,968 B2Cisco Technology, Inc.
- Radio frequency signal fault signature isolation in cable network environments6 Feb 2018US 9,887,737 B2Cisco Technology, Inc.
- Digital filter device, digital filtering method and control program for the digital filter device9 Sep 2014US 8,831,081 B2NEC Corporation
- Adaptive equalizer and adaptive equalizing method6 May 2014US 8,718,126 B2Fujitsu Limited
- Methods and systems for use of common mode rejection (cmr) for echo cancellation in uplink communications14 Nov 2019US 2019/0349026 A1MaxLinear, Inc.
- Network Communication Method10 Oct 2019US 2019/0312715 A1Pepperl + Fuchs GmbH
- Radio frequency signal fault signature isolation in cable network environments26 Oct 2017US 2017/0310361 A1Cisco Technology, Inc.
- Hybrid fibre coaxial fault classification in cable network environments26 Oct 2017US 2017/0310541 A1Cisco Technology, Inc.
- Digital filter device, digital filtering method and control program for the digital filter device31 Oct 2013US 2013/0287390 A1NEC Corporation
Most cited
By later US patents
- Channel equalizer and method for cancelling ghosts63US 4,359,778 AZenith Radio Corporation · 1982
- Adaptive equalizer for ISDN U-interface transceiver32US 5,517,527 AIndustrial Technology Research Institute · 1996
- Filtering device29US 3,949,206 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1976
- Non-linear signal processor26US 4,315,319 ARockwell International Corporation · 1982
- Signal processing system having impulse response detecting circuit16US 4,441,192 AHitachi, Ltd. · 1984