H03H 11/1269
Filters using the operational amplifier pole
Official title: {Filters using the operational amplifier pole}
H03H11/1269 (Filters using the operational amplifier pole) appears on 8 US grants and 5 published applications in this corpus.
Search patents in H03H- Granted patents
- 8
- Published applications
- 5
- Assignees
- 6
- Inventors
- 10
- Latest grant
- 2 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
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| 1981 | 0 | 0 |
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| 1983 | 0 | 0 |
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| 1987 | 0 | 0 |
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| 1990 | 0 | 0 |
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| 1992 | 0 | 0 |
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| 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Filter networks for driving capacitive loads2 Aug 2022US 11,405,022 B2MediaTek Singapore Pte. Ltd.
- Feed-forward filtering device and associated method25 Aug 2020US 10,756,933 B2Mediatek Inc.
- Differential elliptic filter with a single op-amp2 Jul 2019US 10,340,891 B1Quantenna Communications, Inc.
- Feed-forward filtering device and associated method19 Feb 2019US 10,212,006 B2Mediatek Inc.
- Adjustable pole and zero location for a second order low pass filter used in a phase lock loop circuit29 Jul 2014US 8,791,736 B2
- Filter networks for driving capacitive loads27 Jun 2019US 2019/0199327 A1MediaTek Singapore Pte. Ltd.
- Feed-forward filtering device and associated method3 May 2018US 2018/0123838 A1Mediatek Inc.
- Feed-forward filtering device and associated method7 Sep 2017US 2017/0257235 A1Mediatek Inc.
- Adjustable pole and zero location for a second order low pass path filter used in a phase lock loop circuit3 Jul 2014US 2014/0184287 A1
- Transfer-function control in an active filter20 Jan 2011US 2011/0012678 A1Texas Instruments Incorporated
Most cited
By later US patents
- Adjustable pole and zero location for a second order low pass filter used in a phase lock loop circuit8US 8,723,567 B12014
- Active-R filter5US 3,955,150 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Transfer-function control in an active filter5US 8,120,417 B2Texas Instruments Incorporated · 2012
- Feed-forward filtering device and associated method1US 10,212,006 B2Mediatek Inc. · 2019
- Adjustable pole and zero location for a second order low pass filter used in a phase lock loop circuit1US 8,791,736 B22014