H03H 2017/0472
Based on allpass structures
Official title: {based on allpass structures}
H03H2017/0472 (Based on allpass structures) appears on 16 US grants and 12 published applications in this corpus.
Search patents in H03H- Granted patents
- 16
- Published applications
- 12
- Assignees
- 11
- Inventors
- 18
- Latest grant
- 28 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 4 |
| 2017 | 5 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Non linear filter with group delay at pre-response frequency for high res radio28 May 2024US 11,996,816 B2Lenbrook Industries Limited
- Non linear filter with group delay at pre-response frequency for high res audio1 Sep 2020US 10,763,828 B2
- Filter characteristics changing device4 Jun 2019US 10,311,845 B2Casio Computer Co., Ltd.
- Systems and methods for calibrating power measurements in an electrosurgical generator20 Mar 2018US 9,918,775 B2Covidien LP
- Enhancing audio using a mobile device19 Dec 2017US 9,848,263 B2Caavo Inc
- Non linear filter with group delay at pre-response frequency for high res radio17 Dec 2020US 2020/0395918 A1Lenbrook Industries Limited
- Filter characteristics changing device20 Sep 2018US 2018/0268793 A1Casio Computer Co., Ltd.
- Non linear filter with group delay at pre-response frequency for high res radio30 Nov 2017US 2017/0346465 A1
- Enhancing audio using a mobile device8 Sep 2016US 2016/0259621 A1Caavo Inc
- Enhancing audio using a mobile device8 Sep 2016US 2016/0261247 A1Caavo Inc
Most cited
By later US patents
- Variable rate digital filter29US 5,325,318 AConstream Corporation · 1994
- Sample rate converter having distributed filtering16US 7,280,878 B1Creative Technology Ltd · 2007
- Interpolator/decimator filter structure and a digital filter therefor7US 4,864,526 APlessey Overseas Limited · 1989
- Enhancing audio using a mobile device5US 9,699,556 B2Caavo Inc · 2017
- Systems and methods for calibrating power measurements in an electrosurgical generator4US 8,968,293 B2Covidien LP · 2015