Patents Assigned to ECHOVISTA GMBH
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Publication number: 20240024929Abstract: A method of keeping a viewing area through a transparent element (10) of an optical monitoring device (100) clear, comprising the steps of: Forming a closed film (50) of a liquid on the transparent element (10); Coupling ultrasonic waves (64) into the transparent element (10), wherein loosening of contaminations (70) and/or adhesions to the transparent element (10) is promoted by the ultrasonic waves (64) coupled into the liquid film (50) and/or the transparent element (10).Type: ApplicationFiled: September 17, 2021Publication date: January 25, 2024Applicant: EchoVista GmbHInventors: Mincheol SHIN, Oliver Simon MATTHEWS, Steffen WALTER
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Patent number: 11820337Abstract: An optical monitoring system serves to monitor surroundings, having a monitoring apparatus, the visual or scanning field of which is captured by a lens, and a protection panel (112) which protects the lens from precipitation and covers at least the visual or scanning field of the monitoring apparatus. In order to avoid the signal quality of the monitoring apparatus being impaired by precipitation on the protection panel, it is proposed that the protection panel (12; 112; 218; 318) is acoustically coupled to at least one ultrasonic transducer (10). The optical monitoring system can be included into the control system of a vehicle for autonomous driving, wherein, overall, it is possible to obtain increased safety of the control system.Type: GrantFiled: September 14, 2018Date of Patent: November 21, 2023Assignee: EchoVista GmbHInventors: Lars Najorka, Steffen Walter, Ole Gustav Johannessen, Oliver Simon Matthews, Mincheol Shin
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Publication number: 20230356696Abstract: An optical monitoring system serves to monitor surroundings, having a monitoring apparatus, the visual or scanning field of which is captured by a lens, and a protection panel (112) which protects the lens from precipitation and covers at least the visual or scanning field of the monitoring apparatus. In order to avoid the signal quality of the monitoring apparatus being impaired by precipitation on the protection panel, it is proposed that the protection panel (12; 112; 218; 318) is acoustically coupled to at least one ultrasonic transducer (10). The optical monitoring system can be included into the control system of a vehicle for autonomous driving, wherein, overall, it is possible to obtain increased safety of the control system.Type: ApplicationFiled: May 8, 2023Publication date: November 9, 2023Applicant: EchoVista GmbHInventors: Lars NAJORKA, Steffen WALTER, Ole Gustav JOHANNESSEN, Oliver Simon MATTHEWS, Mincheol SHIN
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Patent number: 11660645Abstract: A device (1) for eliminating deposits and/or precipitation on a substrate (10, 110) comprises at least one transducer (20, 120) captively connected to the substrate (10, 110) by a connection layer (30), wherein the connection layer (30) is arranged between the substrate (10, 110) and the transducer (20, 120). The invention provides for the connection layer (30) to comprise a connection material (31) and a filling material (32). Furthermore, an optical system for environment monitoring comprising an optical monitoring device comprising a lens and/or an observation window and the above device is provided, wherein the lens or the observation window is formed by the substrate.Type: GrantFiled: September 11, 2019Date of Patent: May 30, 2023Assignee: EchoVista GmbHInventors: Steffen Walter, Ole Gustav Johannessen, Oliver Simon Matthews, Mincheol Shin
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Publication number: 20220080471Abstract: A device (1) for eliminating deposits and/or precipitation on a substrate (10, 110) comprises at least one transducer (20, 120) captively connected to the substrate (10, 110) by a connection layer (30), wherein the connection layer (30) is arranged between the substrate (10, 110) and the transducer (20, 120). The invention provides for the connection layer (30) to comprise a connection material (31) and a filling material (32). Furthermore, an optical system for environment monitoring comprising an optical monitoring device comprising a lens and/or an observation window and the above device is provided, wherein the lens or the observation window is formed by the substrate.Type: ApplicationFiled: September 11, 2019Publication date: March 17, 2022Applicant: EchoVista GmbHInventors: Steffen WALTER, Ole Gustav JOHANNESSEN, Oliver Simon MATTHEWS, Mincheol SHIN
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Patent number: 10933451Abstract: A system comprises a plate (235) and one or more transducers (200) coupled to the plate (235). Each of the one or more transducers (200) is operable to generate ultrasonic waves which propagate through the plate (235) in a propagation direction (240), for ultrasonically clearing droplets (250) of fluid from the plate (235). The plate (235) comprises one or more structures disposed in the path of ultrasonic waves and configured to control the propagation of ultrasonic waves in the plate (235) to achieve a predetermined amount of ultrasonic wave energy propagating in a direction opposite to the propagation direction (240). The value of one or more parameters of the shape of each of the one or more structures is predetermined to achieve a predetermined effect on ultrasonic waves incident on the structure.Type: GrantFiled: September 14, 2017Date of Patent: March 2, 2021Assignee: EchoVista GmbHInventors: David Trevett, Patrick Trevett, Mincheol Shin
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Publication number: 20200384958Abstract: An optical monitoring system serves to monitor surroundings, having a monitoring apparatus, the visual or scanning field of which is captured by a lens, and a protection panel (112) which protects the lens from precipitation and covers at least the visual or scanning field of the monitoring apparatus. In order to avoid the signal quality of the monitoring apparatus being impaired by precipitation on the protection panel, it is proposed that the protection panel (12; 112; 218; 318) is acoustically coupled to at least one ultrasonic transducer (10). The optical monitoring system can be included into the control system of a vehicle for autonomous driving, wherein, overall, it is possible to obtain increased safety of the control system.Type: ApplicationFiled: September 14, 2018Publication date: December 10, 2020Applicant: EchoVista GmbHInventors: Lars NAJORKA, Steffen WALTER, Ole Gustav JOHANNESSEN, Oliver Simon MATTHEWS, Mincheol SHIN
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Publication number: 20190255577Abstract: A system comprises a plate (235) and one or more transducers (200) coupled to the plate (235). Each of the one or more transducers (200) is operable to generate ultrasonic waves which propagate through the plate (235) in a propagation direction (240), for ultrasonically clearing droplets (250) of fluid from the plate (235). The plate (235) comprises one or more structures disposed in the path of ultrasonic waves and configured to control the propagation of ultrasonic waves in the plate (235) to achieve a predetermined amount of ultrasonic wave energy propagating in a direction opposite to the propagation direction (240). The value of one or more parameters of the shape of each of the one or more structures is predetermined to achieve a predetermined effect on ultrasonic waves incident on the structure.Type: ApplicationFiled: September 14, 2017Publication date: August 22, 2019Applicant: EchoVista GmbHInventors: David TREVETT, Patrick TREVETT, Mincheol SHIN
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Patent number: 10207300Abstract: A system for clearing precipitation from a window comprises one or more transducers (1-8) fixed to the window. The transducers are driven by a generator (13) to produce surface acoustic waves that propagate through the window. The window may be a laminated window such as a windscreen (10) for a vehicle. A sensing system (122) may be used for detecting the presence of precipitation to actuate the clearing system.Type: GrantFiled: May 3, 2018Date of Patent: February 19, 2019Assignee: EchoVista GmbHInventors: David Robert Murray Trevett, Patrick Naven Trevett
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Patent number: 10150143Abstract: An apparatus for clearing water from a window comprises one or more transducers for coupling to a window. Each of the one or more transducers is operable at any selected one of a plurality of different frequencies to generate respective wave-types. A frequency generator (925) provides ultrasonic drive signals (926) to the one or more transducers for the plurality of different frequencies. A mode controller (930) controls the generator (925) and transducer configuration of electrodes (210) to apply to the window ultrasonic waves of any selected frequency and wave-type from the plurality of different frequencies and wave-types.Type: GrantFiled: January 21, 2016Date of Patent: December 11, 2018Assignee: EchoVista GmbHInventors: David Trevett, Patrick Trevett, Hendrik Faustmann
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Patent number: 9316436Abstract: A method of clearing precipitation from a surface of a window comprises ultrasonically vaporizing the precipitation. A vehicle windscreen, for example, has transducers distributed around the edge and bonded to the windscreen to insonify it. The transducers are energized by a drive system.Type: GrantFiled: July 10, 2013Date of Patent: April 19, 2016Assignee: ECHOVISTA GMBHInventors: David Robert Murray Trevett, Patrick Naven Trevett