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Lars Risbo
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Copenhagen O, 2100, DK
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Patents Grants
last 30 patents
Information
Patent Grant
Loudspeaker with a non-uniform suspension and an enforcement element
Patent number
12,003,935
Issue date
Jun 4, 2024
Purifi APS
Bruno Putzeys
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker motor with improved linearity
Patent number
11,956,612
Issue date
Apr 9, 2024
Purifi APS
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Amplifier circuit
Patent number
11,405,007
Issue date
Aug 2, 2022
Purifi APS
Bruno Putzeys
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Double voice coil loudspeaker transducer unit
Patent number
11,290,823
Issue date
Mar 29, 2022
DALI A/S
Kim Kristiansen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Amplifier with an at least second order filter in the control loop
Patent number
11,258,411
Issue date
Feb 22, 2022
Purifi APS
Bruno Putzeys
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Amplifier with a compensator with a network of at least third order
Patent number
11,082,017
Issue date
Aug 3, 2021
Purifi APS
Bruno Putzeys
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Part of a loudspeaker
Patent number
D916053
Issue date
Apr 13, 2021
Lars Risbo
D14 - Recording, communication, or information retrieval equipment
Information
Patent Grant
Method of controlling loudspeaker diaphragm excursion
Patent number
10,728,659
Issue date
Jul 28, 2020
Purifi APS
Bruno Putzeys
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Direct current mode digital-to-analog converter to class D amplifier
Patent number
10,397,701
Issue date
Aug 27, 2019
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Electromechanical system with predictive back-EMF protection
Patent number
10,313,787
Issue date
Jun 4, 2019
Texas Instruments Incorporated
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Direct current mode digital-to-analog converter to class D amplifier
Patent number
10,158,942
Issue date
Dec 18, 2018
Texas Instruments Incorporated
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker protection against excessive excursion
Patent number
9,967,663
Issue date
May 8, 2018
Texas Instruments Incorporated
Anker Bjoern-Josefsen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Direct current mode digital-to-analog converter to class D amplifier
Patent number
9,930,452
Issue date
Mar 27, 2018
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of identifying passive radiator parameters
Patent number
9,661,430
Issue date
May 23, 2017
Texas Instruments Incorporated
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Thermal control of voice coils in loudspeakers
Patent number
8,774,419
Issue date
Jul 8, 2014
Texas Instruments Incorporated
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Efficient asynchronous sample rate conversion
Patent number
8,369,973
Issue date
Feb 5, 2013
Texas Instruments Incorporated
Lars Risbo
G11 - INFORMATION STORAGE
Information
Patent Grant
System for amplifiers with low distortion and low output impedance
Patent number
8,189,817
Issue date
May 29, 2012
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Shaping inter-symbol-interference in sigma delta converter
Patent number
8,144,043
Issue date
Mar 27, 2012
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method in the compensation of unlinearities in an amplifier, and us...
Patent number
8,098,091
Issue date
Jan 17, 2012
Texas Instruments Denmark
Niels Anderskouv
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Cascaded DAC architecture with pulse width modulation
Patent number
7,903,015
Issue date
Mar 8, 2011
Texas Instruments Incorporated
Rahmi Hezar
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Calibration model to mitigate data conversion errors
Patent number
7,894,536
Issue date
Feb 22, 2011
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital audio receiver with reduced AM interference
Patent number
7,809,346
Issue date
Oct 5, 2010
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Automute detection in digital audio amplifiers
Patent number
7,797,065
Issue date
Sep 14, 2010
Texas Instruments Incorporated
David Edward Zaucha
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Output current control and overload protection in digital audio amp...
Patent number
7,773,358
Issue date
Aug 10, 2010
Texas Instruments Incorporated
Claus Niels Neesgaard
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
PWM loop filter with minimum aliasing error
Patent number
7,750,731
Issue date
Jul 6, 2010
Texas Instruments Incorporated
Soeren Poulsen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Pulse-width modulation of pulse-code modulated signals at selectabl...
Patent number
7,626,519
Issue date
Dec 1, 2009
Texas Instruments Incorporated
Lars Risbo
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
On-the-fly introduction of inter-channel delay in a pulse-width-mod...
Patent number
7,492,217
Issue date
Feb 17, 2009
Texas Instruments Incorporated
Thomas Holm Hansen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Recovery from clipping events in a class D amplifier
Patent number
7,425,864
Issue date
Sep 16, 2008
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
All-digital phase-locked loop for a digital pulse-width modulator
Patent number
7,425,874
Issue date
Sep 16, 2008
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Soft transitions between muted and unmuted states in class D audio...
Patent number
7,378,904
Issue date
May 27, 2008
Texas Instruments Incorporated
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
LOUDSPEAKER MOTOR WITH INNER PERMANENT MAGNET
Publication number
20230362547
Publication date
Nov 9, 2023
Purifi APS
Lars Risbo
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
LOUDSPEAKER WITH A NON-UNIFORM SUSPENSION AND AN ENFORCEMENT ELEMENT
Publication number
20220167089
Publication date
May 26, 2022
Purifi APS
Bruno PUTZEYS
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER MOTOR WITH IMPROVED LINEARITY
Publication number
20220141592
Publication date
May 5, 2022
Purifi APS
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Double Voice Coil Loudspeaker Transducer Unit
Publication number
20210029463
Publication date
Jan 28, 2021
DALI A/S
Kim Kristiansen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AMPLIFIER CIRCUIT
Publication number
20200389135
Publication date
Dec 10, 2020
Purifi APS
Bruno PUTZEYS
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AMPLIFIER WITH AN AT LEAST SECOND ORDER FILTER IN THE CONTROL LOOP
Publication number
20200382084
Publication date
Dec 3, 2020
Purifi APS
Bruno PUTZEYS
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AN AMPLIFIER WITH A COMPENSATOR WITH A NETWORK OF AT LEAST THIRD ORDER
Publication number
20200313633
Publication date
Oct 1, 2020
Purifi APS
Bruno PUTZEYS
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
A METHOD OF CONTROLLING LOUDSPEAKER DIAPHRAGM EXCURSION
Publication number
20190149920
Publication date
May 16, 2019
Purifi APS
Bruno PUTZEYS
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Direct Current Mode Digital-to-Analog Converter to Class D Amplifier
Publication number
20190069087
Publication date
Feb 28, 2019
TEXAS INSTRUMENTS INCORPORATED
Lars RISBO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Direct Current Mode Digital-to-Analog Converter to Class D Amplifier
Publication number
20180176683
Publication date
Jun 21, 2018
TEXAS INSTRUMENTS INCORPORATED
Lars RISBO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DIRECT CURRENT MODE DIGITAL-TO-ANALOG CONVERTER TO CLASS D AMPLIFIER
Publication number
20180020288
Publication date
Jan 18, 2018
TEXAS INSTRUMENTS INCORPORATED
Lars RISBO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER PROTECTION AGAINST EXCESSIVE EXCURSION
Publication number
20160192070
Publication date
Jun 30, 2016
TEXAS INSTRUMENTS INCORPORATED
Anker Bjoern-Josefsen
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
ELECTROMECHANICAL SYSTEM WITH PREDICTIVE BACK-EMF PROTECTION
Publication number
20160057533
Publication date
Feb 25, 2016
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD OF IDENTIFYING PASSIVE RADIATOR PARAMETERS
Publication number
20160037276
Publication date
Feb 4, 2016
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Thermal Control of Voice Coils in Loudspeakers
Publication number
20130077794
Publication date
Mar 28, 2013
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Thermal Protection for Loudspeakers
Publication number
20130077796
Publication date
Mar 28, 2013
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Over-Excursion Protection for Loudspeakers
Publication number
20130077795
Publication date
Mar 28, 2013
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Shaping Inter-Symbol-Interference in Sigma Delta Converter
Publication number
20110267210
Publication date
Nov 3, 2011
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CASCADED DAC ARCHITECTURE WITH PULSE WIDTH MODULATION
Publication number
20110043398
Publication date
Feb 24, 2011
Rahmi Hezar
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Efficient Asynchronous Sample Rate Conversion
Publication number
20090319065
Publication date
Dec 24, 2009
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ON-THE-FLY INTRODUCTION OF INTER-CHANNEL DELAY IN A PULSE-WIDTH-MOD...
Publication number
20090116654
Publication date
May 7, 2009
TEXAS INSTRUMENTS INCORPORATED
Thomas H. Hansen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ASYNCHRONOUS SAMPLING RATE CONVERSION
Publication number
20090077149
Publication date
Mar 19, 2009
TEXAS INSTRUMENTS INCORPORATED
Ryo Tsutsui
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SYSTEM FOR AMPLIFIERS WITH LOW DISTORTION AND LOW OUTPUT IMPEDANCE
Publication number
20090028361
Publication date
Jan 29, 2009
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
PULSE-WIDTH MODULATION OF PULSE-CODE MODULATED SIGNALS AT SELECTABL...
Publication number
20080297382
Publication date
Dec 4, 2008
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
PWM Loop Filter with Minimum Aliasing Error
Publication number
20080297244
Publication date
Dec 4, 2008
TEXAS INSTRUMENTS INCORPORATED
Soeren Poulsen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
All-Digital Phase-Locked Loop for a Digital Pulse-Width Modulator
Publication number
20080012647
Publication date
Jan 17, 2008
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
RECOVERY FROM CLIPPING EVENTS IN A CLASS D AMPLIFIER
Publication number
20070058711
Publication date
Mar 15, 2007
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
System for amplifiers with low distortion and low output impedance
Publication number
20070057721
Publication date
Mar 15, 2007
TEXAS INSTRUMENTS INCORPORATED
Lars Risbo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Automute detection in digital audio amplifiers
Publication number
20070005160
Publication date
Jan 4, 2007
TEXAS INSTRUMENTS INCORPORATED
David Edward Zaucha
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Reduction of audible artifacts in an audio system
Publication number
20060279354
Publication date
Dec 14, 2006
Texas Instruments, Inc.
Thomas Holm Hansen
H03 - BASIC ELECTRONIC CIRCUITRY