H04B 3/40
Artificial lines
Official title: Artificial lines; Networks simulating a line of certain length
H04B3/40 (Artificial lines) appears on 31 US grants and 12 published applications in this corpus.
Search patents in H04B- Granted patents
- 31
- Published applications
- 12
- Assignees
- 27
- Inventors
- 51
- Latest grant
- 11 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 3 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Simulation device, simulation method, and recording medium11 Jun 2024US 12,009,882 B2Socionext Inc.
- Transducer built-in self-test27 Feb 2024US 11,913,988 B2QUALCOMM Technologies, Inc.
- Multi-slope equalizers for a cable network10 Oct 2023US 11,784,679 B2ARRIS Enterprises LLC
- Circuits and methods for non-reciprocal circulators and transceivers using same3 Mar 2020US 10,581,135 B2The Trustees of Columbia University in the City of New York
- Valid lane training29 Oct 2019US 10,461,805 B2Intel Corporation
- Transducer Built-In Self-Test17 Nov 2022US 2022/0365128 A1Vesper Technologies Inc.
- Multi-slope equalizers for a cable network22 Sep 2022US 2022/0302955 A1ARRIS Enterprises LLC
- Simulation device, simulation method, and recording medium11 Aug 2022US 2022/0255584 A1Socionext Inc.
- Valid lane training1 Aug 2019US 2019/0238179 A1Intel Corporation
- Circuits and methods for non-reciprocal circulators and transceivers using same15 Nov 2018US 2018/0331408 A1The Trustees of Columbia University in the City of New York
Most cited
By later US patents
- Balancing impedance circuit47US 4,181,824 ABell Telephone Laboratories, Incorporated · 1980
- Circuits and methods for performing self-interference cancelation in full-duplex transceivers29US 9,887,862 B2The Trustees of Columbia University in the City of New York · 2018
- Method of harmonizing the impedances of an audio amplifier and loudspeaker interconnected therewith20US 4,387,270 ATokyo Shibaura Denki Kabushiki Kaisha · 1983
- Low power transmission line terminator19US 4,015,147 AInternational Business Machines Corporation · 1977
- Automatic impedance modification of transmission lines16US 4,004,102 ABell Telephone Laboratories, Incorporated · 1977