Patents by Inventor Magnus Christian Bjerkeng
Magnus Christian Bjerkeng 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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Patent number: 11809654Abstract: An input device comprises a plurality of optical vibration sensors mounted in a common housing. Each optical vibration sensor comprises a diffractive optical element; a light source arranged to illuminate the diffractive optical element such that a first portion of light passes through the diffractive optical element and a second portion of light is reflected from the diffractive optical element; and a photo detector arranged to detect an interference pattern generated by said first and second portions of light. The optical vibration sensor is configured so that in use, after the first portion of light passes through the diffractive optical element, the first portion of light is reflected from a reflective surface onto the photo detector. The input device is placed in contact with a surface of a solid body, and an object is brought into physical contact with the surface of the solid body, thereby causing vibrations in the solid body.Type: GrantFiled: December 1, 2022Date of Patent: November 7, 2023Assignee: SINTEF TTO ASInventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl, Odd Kristen Østem Pettersen
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Publication number: 20230085902Abstract: An input device comprises a plurality of optical vibration sensors mounted in a common housing. Each optical vibration sensor comprises a diffractive optical element; a light source arranged to illuminate the diffractive optical element such that a first portion of light passes through the diffractive optical element and a second portion of light is reflected from the diffractive optical element; and a photo detector arranged to detect an interference pattern generated by said first and second portions of light. The optical vibration sensor is configured so that in use, after the first portion of light passes through the diffractive optical element, the first portion of light is reflected from a reflective surface onto the photo detector. The input device is placed in contact with a surface of a solid body, and an object is brought into physical contact with the surface of the solid body, thereby causing vibrations in the solid body.Type: ApplicationFiled: December 1, 2022Publication date: March 23, 2023Inventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl, Odd Kristen Østern Pettersen
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Patent number: 11550419Abstract: An input device comprises a plurality of optical vibration sensors mounted in a common housing. Each optical vibration sensor comprises a diffractive optical element; a light source arranged to illuminate the diffractive optical element such that a first portion of light passes through the diffractive optical element and a second portion of light is reflected from the diffractive optical element; and a photo detector arranged to detect an interference pattern generated by said first and second portions of light. The optical vibration sensor is configured so that in use, after the first portion of light passes through the diffractive optical element, the first portion of light is reflected from a reflective surface onto the photo detector. The input device is placed in contact with a surface of a solid body, and an object is brought into physical contact with the surface of the solid body, thereby causing vibrations in the solid body.Type: GrantFiled: February 16, 2022Date of Patent: January 10, 2023Assignee: SINTEF TTO ASInventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl, Odd Kristen Østern Pettersen
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Publication number: 20220171491Abstract: An input device comprises a plurality of optical vibration sensors mounted in a common housing. Each optical vibration sensor comprises a diffractive optical element; a light source arranged to illuminate the diffractive optical element such that a first portion of light passes through the diffractive optical element and a second portion of light is reflected from the diffractive optical element; and a photo detector arranged to detect an interference pattern generated by said first and second portions of light. The optical vibration sensor is configured so that in use, after the first portion of light passes through the diffractive optical element, the first portion of light is reflected from a reflective surface onto the photo detector. The input device is placed in contact with a surface of a solid body, and an object is brought into physical contact with the surface of the solid body, thereby causing vibrations in the solid body.Type: ApplicationFiled: February 16, 2022Publication date: June 2, 2022Inventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl, Odd Kristen Østern Pettersen
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Patent number: 11287917Abstract: An input device comprises a plurality of optical vibration sensors mounted in a common housing. Each optical vibration sensor comprises a diffractive optical element; a light source arranged to illuminate the diffractive optical element such that a first portion of light passes through the diffractive optical element and a second portion of light is reflected from the diffractive optical element; and a photo detector arranged to detect an interference pattern generated by said first and second portions of light. The optical vibration sensor is configured so that in use, after the first portion of light passes through the diffractive optical element, the first portion of light is reflected from a reflective surface onto the photo detector. The input device is placed in contact with a surface of a solid body, and an object is brought into physical contact with the surface of the solid body, thereby causing vibrations in the solid body.Type: GrantFiled: May 17, 2018Date of Patent: March 29, 2022Assignee: SINTEF TTO ASInventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl, Odd Kristen Østern Pettersen
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Publication number: 20210271338Abstract: An input device comprises a plurality of optical vibration sensors mounted in a common housing. Each optical vibration sensor comprises a diffractive optical element; a light source arranged to illuminate the diffractive optical element such that a first portion of light passes through the diffractive optical element and a second portion of light is reflected from the diffractive optical element; and a photo detector arranged to detect an interference pattern generated by said first and second portions of light. The optical vibration sensor is configured so that in use, after the first portion of light passes through the diffractive optical element, the first portion of light is reflected from a reflective surface onto the photo detector. The input device is placed in contact with a surface of a solid body, and an object is brought into physical contact with the surface of the solid body, thereby causing vibrations in the solid body.Type: ApplicationFiled: May 17, 2018Publication date: September 2, 2021Inventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl, Odd Kristen Østern Pettersen
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Publication number: 20200049731Abstract: An optical accelerometer arrangement (20) comprises an array of optical accelerometers (26) attached to a common structure (22). Each of the optical accelerometers (26) provides a signal indicative of displacement of a measurement mass (6) as a result of an acceleration along a given axis applied to the common structure (22). The arrangement (20) also comprises a processor (31a) configured to determine an estimate of the acceleration using the signals provided by the accelerometers (26). The arrangement (20) may be attached to an object (40; 46; 0; 52) which also comprises a gyroscope (44) and/or a camera (48).Type: ApplicationFiled: May 26, 2017Publication date: February 13, 2020Inventors: Tobias Gulden Dahl, Magnus Christian Bjerkeng, Andreas Vogl