Notch filters

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H03H21/0021

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Parent Industries

HELECTRICITY H03Electronic circuits H03HIMPEDANCE NETWORKS H03H21/00Adaptive networks

Current Industry

H03H21/0021Notch filters

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Patents Grantslast 30 patents

Information Patent Grant
Motor control apparatus
- Patent number 10,734,933
- Issue date Aug 4, 2020
- Mitsubishi Electric Corporation
- Masaya Kimura
- G05 - CONTROLLING REGULATING
Information Patent Grant
Systems and methods for providing compensation of analog filter ban...
- Patent number 10,340,893
- Issue date Jul 2, 2019
- Marvell International Ltd.
- Vijay Ahirwar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital filter and vehicle driving force control apparatus
- Patent number 10,308,250
- Issue date Jun 4, 2019
- Toyota Jidosha Kabushiki Kaisha
- Tomohiro Naruse
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Frequency-adaptive notch filter
- Patent number 9,503,056
- Issue date Nov 22, 2016
- Welch Allyn, Inc.
- Yaolong Lou
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Signal processing device and signal processing method
- Patent number 9,438,204
- Issue date Sep 6, 2016
- Mediatek Inc.
- Chien-Hua Hsu
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Frequency-adaptive notch filter
- Patent number 9,198,588
- Issue date Dec 1, 2015
- Welch Allyn, Inc.
- Yaolong Lou
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Howling suppression device and adaptive notch filter
- Patent number 9,197,191
- Issue date Nov 24, 2015
- Oki Electric Industry Co., Ltd.
- Naoya Kawabata
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Programmable RF notch filter for envelope tracking
- Patent number 9,020,451
- Issue date Apr 28, 2015
- RF Micro Devices, Inc.
- Nadim Khlat
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive spectral enhancement and harmonic separation
- Patent number 8,964,890
- Issue date Feb 24, 2015
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive narrowband interference prediction circuit and method
- Patent number 8,638,892
- Issue date Jan 28, 2014
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Receiver having an adaptive filter and method of optimizing the filter
- Patent number 8,634,507
- Issue date Jan 21, 2014
- ST-Ericsson SA
- Robert Fifield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus of adaptively canceling a fundamental frequenc...
- Patent number 8,577,945
- Issue date Nov 5, 2013
- Eaton Corporation
- Michael P. Nowak
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Blind adaptive filter for narrowband interference cancellation
- Patent number 8,509,365
- Issue date Aug 13, 2013
- Montage Technology (Shanghai) Co. Ltd.
- Gang Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive spectral enhancement and harmonic separation
- Patent number 8,472,514
- Issue date Jun 25, 2013
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive notch filter
- Patent number 8,392,000
- Issue date Mar 5, 2013
- University of Southern California
- Jason Levin
- G05 - CONTROLLING REGULATING
Information Patent Grant
Narrowband interference cancellation method and circuit
- Patent number 8,331,508
- Issue date Dec 11, 2012
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Receiver having an adaptive filter and method of optimising the filter
- Patent number 8,085,838
- Issue date Dec 27, 2011
- ST-Ericsson SA
- Robert Fifield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-channel digital feedback reducer system
- Patent number 7,227,959
- Issue date Jun 5, 2007
- Shure Incorporated
- Mathew T. Abraham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Realtime adaptive notch compensator
- Patent number 6,867,642
- Issue date Mar 15, 2005
- Lockheed Martin Corporation
- Benigno Maqueira
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive frequency correction burst detector for GSM handset system
- Patent number 5,724,657
- Issue date Mar 3, 1998
- Rockwell International Corporation
- Jingdong Lin
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Receiver and adaptive digital notch filter
- Patent number 5,226,057
- Issue date Jul 6, 1993
- Rockwell International Corporation
- Thomas A. Boren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adaptive stop-notch filter
- Patent number 4,679,001
- Issue date Jul 7, 1987
- International Business Machines Corporation
- Lynn P. West
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adaptive sinusoidal interference filter
- Patent number 4,589,083
- Issue date May 13, 1986
- Centre de Recherche Industrielle du Quebec
- Chon T. Le Dinh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Self-adjusting digital notch filter
- Patent number 3,967,102
- Issue date Jun 29, 1976
- The United States of America as represented by the Secretary of the Air Force
- Rainer F. McCown
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3867712
- Patent number 3,867,712
- Issue date Feb 18, 1975
- G01 - MEASURING TESTING
Information Patent Grant
3614398
- Patent number 3,614,398
- Issue date Oct 19, 1971
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
ADAPTIVE FILTER DEVICE AND METHOD FOR PROVIDING AN OUTPUT SIGNAL
- Publication number 20240213960
- Publication date Jun 27, 2024
- U-BLOX AG
- Nikolaos Katsaros
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MICROMIRROR RESONANCE SUPRESSION USING CONFIGURABLE FILTER
- Publication number 20230384582
- Publication date Nov 30, 2023
- Microsoft Technology Licensing, LLC
- Wenjun LIAO
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Application
MOTOR CONTROL APPARATUS
- Publication number 20190123672
- Publication date Apr 25, 2019
- MITSUBISHI ELECTRIC CORPORATION
- Masaya KIMURA
- G05 - CONTROLLING REGULATING
Information Patent Application
FREQUENCY-ADAPTIVE NOTCH FILTER
- Publication number 20160043704
- Publication date Feb 11, 2016
- Welch Allyn, Inc.
- Yaolong Lou
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
NOTCH FILTER, EXTERNAL FORCE ESTIMATOR, MOTOR CONTROL APPARATUS, AN...
- Publication number 20160016310
- Publication date Jan 21, 2016
- KABUSHIKI KAISHA YASKAWA DENKI
- Fei ZHAO
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
- Publication number 20150061758
- Publication date Mar 5, 2015
- MEDIATEK INC.
- Chien-Hua Hsu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
FREQUENCY-ADAPTIVE NOTCH FILTER
- Publication number 20140121548
- Publication date May 1, 2014
- Welch Allyn, Inc.
- Yaolong Lou
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
HOWLING SUPPRESSION DEVICE AND ADAPTIVE NOTCH FILTER
- Publication number 20140059103
- Publication date Feb 27, 2014
- Oki Electric Industry Co., Ltd.
- Naoya KAWABATA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PROGRAMMABLE RF NOTCH FILTER FOR ENVELOPE TRACKING
- Publication number 20140028368
- Publication date Jan 30, 2014
- RF Micro Devices, Inc.
- Nadim Khlat
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ADAPTIVE SPECTRAL ENHANCEMENT AND HARMONIC SEPARATION
- Publication number 20130272447
- Publication date Oct 17, 2013
- Dariush DABIRI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
NARROWBAND INTERFERENCE CANCELLATION METHOD AND CIRCUIT
- Publication number 20130072143
- Publication date Mar 21, 2013
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Receiver Having an Adaptive Filter and Method of Optimizing the Filter
- Publication number 20120150934
- Publication date Jun 14, 2012
- ST-ERICSSON SA
- Robert Fifield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Adaptive Spectral Enhancement and Harmonic Separation
- Publication number 20120013398
- Publication date Jan 19, 2012
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Narrowband Interference Cancellation Method and Circuit
- Publication number 20120014416
- Publication date Jan 19, 2012
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Adaptive Narrowband Interference Prediction Circuit and Method
- Publication number 20120014487
- Publication date Jan 19, 2012
- Applied Micro Circuits Corporation
- Dariush Dabiri
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHOD AND APPARATUS OF ADAPTIVELY CANCELING A FUNDAMENTAL FREQUENC...
- Publication number 20120011183
- Publication date Jan 12, 2012
- Michael P. Nowak
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
BLIND ADAPTIVE FILTER FOR NARROWBAND INTERFERENCE CANCELLATION
- Publication number 20110305306
- Publication date Dec 15, 2011
- MONTAGE TECHNOLOGY (SHANGHAI) CO. LTD.
- Gang Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ADAPTIVE NOTCH FILTER
- Publication number 20100312365
- Publication date Dec 9, 2010
- University of Southern California
- JASON LEVIN
- G05 - CONTROLLING REGULATING
Information Patent Application
Multi-channel digital feedback reducer system
- Publication number 20040179387
- Publication date Sep 16, 2004
- Shure Incorporated
- Mathew T. Abraham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Receiver having an adaptive filter and method of optimising the filter
- Publication number 20030007553
- Publication date Jan 9, 2003
- Koninklijke Philips Electronics N.V.
- Robert Fifield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Notch filters

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Motor control apparatus

Systems and methods for providing compensation of analog filter ban...

Digital filter and vehicle driving force control apparatus

Frequency-adaptive notch filter

Signal processing device and signal processing method

Frequency-adaptive notch filter

Howling suppression device and adaptive notch filter

Programmable RF notch filter for envelope tracking

Adaptive spectral enhancement and harmonic separation

Adaptive narrowband interference prediction circuit and method

Receiver having an adaptive filter and method of optimizing the filter

Method and apparatus of adaptively canceling a fundamental frequenc...

Blind adaptive filter for narrowband interference cancellation

Adaptive spectral enhancement and harmonic separation

Adaptive notch filter

Narrowband interference cancellation method and circuit

Receiver having an adaptive filter and method of optimising the filter

Multi-channel digital feedback reducer system

Realtime adaptive notch compensator

Adaptive frequency correction burst detector for GSM handset system

Receiver and adaptive digital notch filter

Adaptive stop-notch filter

Adaptive sinusoidal interference filter

Self-adjusting digital notch filter

3867712

3614398

Patents Applicationslast 30 patents

ADAPTIVE FILTER DEVICE AND METHOD FOR PROVIDING AN OUTPUT SIGNAL

MICROMIRROR RESONANCE SUPRESSION USING CONFIGURABLE FILTER

MOTOR CONTROL APPARATUS

FREQUENCY-ADAPTIVE NOTCH FILTER

NOTCH FILTER, EXTERNAL FORCE ESTIMATOR, MOTOR CONTROL APPARATUS, AN...

SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD

FREQUENCY-ADAPTIVE NOTCH FILTER

HOWLING SUPPRESSION DEVICE AND ADAPTIVE NOTCH FILTER

PROGRAMMABLE RF NOTCH FILTER FOR ENVELOPE TRACKING

ADAPTIVE SPECTRAL ENHANCEMENT AND HARMONIC SEPARATION

NARROWBAND INTERFERENCE CANCELLATION METHOD AND CIRCUIT

Receiver Having an Adaptive Filter and Method of Optimizing the Filter

Adaptive Spectral Enhancement and Harmonic Separation

Narrowband Interference Cancellation Method and Circuit

Adaptive Narrowband Interference Prediction Circuit and Method

METHOD AND APPARATUS OF ADAPTIVELY CANCELING A FUNDAMENTAL FREQUENC...

BLIND ADAPTIVE FILTER FOR NARROWBAND INTERFERENCE CANCELLATION

ADAPTIVE NOTCH FILTER

Multi-channel digital feedback reducer system

Receiver having an adaptive filter and method of optimising the filter