Patents by Inventor Arthur Perry Berkhoff
Arthur Perry Berkhoff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220193723Abstract: An acoustic device (100) comprises an array of acoustic transducers (10a,10b) formed by a patterned stack (12-15) on a flexible substrate (11). The stack comprises a piezoelectric layer (13) sandwiched between respective bottom and top electrode layers (12,15), and a patterned insulation layer (14) formed by a pattern of insulation material (14m). The pattern comprises insulated areas (A14) where the insulation material (14m) is disposed between one of the electrodes (12,15) and the piezoelectric layer (13), and contact areas (A10) without the insulation material (14m) where both electrodes (12,15) contact the piezoelectric layer (13).Type: ApplicationFiled: April 29, 2020Publication date: June 23, 2022Inventors: Hylke Broer AKKERMAN, Albert Jos Jan Marie VAN BREEMEN, Gerwin Hermanus GELINCK, Arthur Perry BERKHOFF, Paul Louis Maria Joseph VAN NEER, Arno Willem Frederik VOLKER
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Publication number: 20220192633Abstract: A device (100) and method for adhering by suction to a target surface (200). The device has a substrate (20) with a contact surface (20a) for contacting the device (100) to the target surface (200). A plurality of pocket (10) are formed by respective pocket surfaces (10a) concavely extending into the contact surface (20a). The pockets (10) have an open side (10b) facing and being closed off by the target surface (200). A flexible membrane (15) forms at least part of the pocket surface (10a). An actuator (40) is configured to actuate the flexible membrane (15). A one-way valve (30) through the pocket surface (10a) is configured to direct a contents of the pocket (10) via the one-way valve (30) to an environment (300).Type: ApplicationFiled: April 6, 2020Publication date: June 23, 2022Inventors: Paul Louis Maria Joseph VAN NEER, Arno Willem Frederik VOLKER, Hylke Broer AKKERMAN, Gerwin Hermanus GELINCK, Antonius Maria Bernardus VAN MOL, Arthur Perry BERKHOFF
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Patent number: 11223911Abstract: The present invention is in the field of an intra ear canal hearing aid, a pair of said hearing aids and use of said hearing aids. Such a hearing aid is designed to improve or support hearing. It typically relates to an electroacoustic device that is capable of transforming sound, thereby reducing noise and typically amplifying certain parts of the audio frequency spectrum. In addition such as hearing aid may improve directional perception of sound.Type: GrantFiled: March 30, 2018Date of Patent: January 11, 2022Assignees: AXIGN B.V., NOVIOSOUND B.V.Inventors: Jeroen Langevoort, Arthur Perry Berkhoff, Arnoldus Johannes Maria Baltussen, Reinier van 'T Hooft, David George Bradford
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Publication number: 20210092532Abstract: The present invention is in the field of an intra ear canal hearing aid, a pair of said hearing aids and use of said hearing aids. Such a hearing aid is designed to improve or support hearing. It typically relates to an electroacoustic device that is capable of transforming sound, thereby reducing noise and typically amplifying certain parts of the audio frequency spectrum. In addition such as hearing aid may improve directional perception of sound.Type: ApplicationFiled: March 30, 2018Publication date: March 25, 2021Inventors: Jeroen Langevoort, Arthur Perry Berkhoff, Arnoldus Johannes Maria Baltussen, Reinier van 'T Hooft, David George Bradford
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Patent number: 9154882Abstract: A sound generator, particularly a loudspeaker, configured to emit sound, comprising a rigid element (2) enclosing a plurality of air compartments (3), wherein the rigid element (2) has a back side (B) comprising apertures (4), and a front side (F) that is closed, wherein the generator is provided with at least one actuator (6), for instance one or more electromagnetic actuators and/or piezoelectric elements, configured to actuate the rigid element (2) for the generation of the sound.Type: GrantFiled: April 29, 2008Date of Patent: October 6, 2015Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNOInventor: Arthur Perry Berkhoff
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Patent number: 8144888Abstract: A filter apparatus for reducing noise from a primary noise source, comprising a secondary source signal connector for generating secondary noise to reduce said primary noise and a sensor connector for connecting to a sensor for measuring said primary and secondary noise as an error signal. A first control filter is arranged to receive a reference signal and calculate a control signal for the secondary source signal. A second control filter is arranged to receive a delayed reference signal and calculate an auxiliary control signal; wherein an adaptation circuit is arranged to adapt said second control filter while receiving an error signal as a sum of the auxiliary control signal and an auxiliary noise signal. The auxiliary noise signal is constructed from a difference of the delayed filtered error signal and a delayed control signal. The first control filter is updated by a copy of said updated second control filter.Type: GrantFiled: December 4, 2006Date of Patent: March 27, 2012Assignee: Nederlandse Organisatie voor toegepastnatuurwetenschappelijk onderzoek TNOInventors: Arthur Perry Berkhoff, Gerard Nijsse
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Publication number: 20100150369Abstract: A filter apparatus for reducing noise from a primary noise source, comprising a secondary source signal connector for generating secondary noise to reduce said primary noise and a sensor connector for connecting to a sensor for measuring said primary and secondary noise as an error signal. A first control filter is arranged to receive a reference signal and calculate a control signal for the secondary source signal. A second control filter is arranged to receive a delayed reference signal and calculate an auxiliary control signal; wherein an adaptation circuit is arranged to adapt said second control filter while receiving an error signal as a sum of the auxiliary control signal and an auxiliary noise signal. The auxiliary noise signal is constructed from a difference of the delayed filtered error signal and a delayed control signal. The first control filter is updated by a copy of said updated second control filter.Type: ApplicationFiled: December 4, 2006Publication date: June 17, 2010Inventors: Arthur Perry Berkhoff, Gerard Nijsse
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Publication number: 20100111351Abstract: A sound generator, particularly a loudspeaker, configured to emit sound, comprising a rigid element (2) enclosing a plurality of air compartments (3), wherein the rigid element (2) has a back side (B) comprising apertures (4), and a front side (F) that is closed, wherein the generator is provided with at least one actuator (6), for instance one or more electromagnetic actuators and/or piezoelectric elements, configured to actuate the rigid element (2) for the generation of the sound.Type: ApplicationFiled: April 29, 2008Publication date: May 6, 2010Inventor: Arthur Perry Berkhoff
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Patent number: 7530426Abstract: A device for actively reducing sound transmission, provided with a first and second wall (3, 5) enclosing an inner space (1, 2), wherein at least the second wall (5) is provided with actuators (6), for instance eletromagnetic actuators and/or piezoeleteric elements, wherein the said inner space is provided with at least one inner wall (4) to divide this space into at least two layers of air (1, 2), which inner wall (4) is arranged such that the layers of air (1, 2) are in fluid connection with each other.Type: GrantFiled: February 11, 2004Date of Patent: May 12, 2009Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNOInventor: Arthur Perry Berkhoff
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Patent number: 6959092Abstract: Noise reduction arrangement including: a plurality of actuators (3(n)) for generating secondary noise (ps) to reduce primary noise (pp) and being located in a first surface; a plurality of errors sensors (2(m)) located in a second surface parallel to the first surface for sensing a total amount of noise resulting from the primary noise after being reduced by the secondary noise; a plurality of control elements (5(i)) for controlling the actuators (3(n)) based on the sensor outputs, wherein the distance (d) between the first and second surfaces is such that reduction in power RP of the total amount of noise relative to the primary noise within a predetermined frequency band is within the following range: 0.9×RPmax?RP?RPmax in which RPmax is the maximum obtainable reduction in power of the total amount of noise relative to the primary noise, both RP and RPmax being expressed in decibel.Type: GrantFiled: October 28, 1999Date of Patent: October 25, 2005Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Arthur Perry Berkhoff, Michiel Wilbert Rombout Maria Van Overbeek, Nicolaas Jan Doelman