H03H 21/0014
Lattice filters
Official title: {Lattice filters}
H03H21/0014 (Lattice filters) appears on 6 US grants and 9 published applications in this corpus.
Search patents in H03H- Granted patents
- 6
- Published applications
- 9
- Assignees
- 9
- Inventors
- 19
- Latest grant
- 24 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 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 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 4 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Low power lattice wave filter systems and methods24 Nov 2020US 10,848,131 B1Synaptics Incorporated
- Audio enhancement system1 Feb 2011US 7,881,482 B2Harman Becker Automotive Systems GmbH
- Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares8 Jun 2010US 7,734,466 B2Motorola, Inc.
- Reduced complexity recursive least square lattice structure adaptive filter by means of estimating the backward and forward error prediction squares using binomial expansion20 Apr 2010US 7,702,711 B2Motorola, Inc.
- Delay lattice filter for radar doppler processing25 Mar 1986US 4,578,676 AWestinghouse Electric Corp.
- Ssh circuit and electronic device18 Jul 2024US 2024/0243717 A1Rohm Co., Ltd.
- Low power lattice wave filter systems and methods3 Dec 2020US 2020/0382104 A1Synaptics Incorporated
- Algorithm for the Adaptive Infinite Impulse Response Filter25 Nov 2010US 2010/0299381 A1Aulac Technologies Inc.
- Adaptive filter calculation method and sound field generating device7 May 2009US 2009/0116655 A1Fujitsu Ten Limited
- Reduced complexity recursive least square lattice structure adaptive filter by means of estimating the backward and forward error prediction squares using binomial expansion21 Dec 2006US 2006/0288064 A1Motorola, Inc.
Most cited
By later US patents
- Delay lattice filter for radar doppler processing20US 4,578,676 AWestinghouse Electric Corp. · 1986
- Audio enhancement system13US 7,881,482 B2Harman Becker Automotive Systems GmbH · 2011
- Adaptive predicting circuit using a lattice filter and a corresponding differential PCM coding or decoding apparatus4US 4,389,726 A1983
- Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares4US 7,734,466 B2Motorola, Inc. · 2010