Patents by Inventor Dennis Pedersen
Dennis Pedersen 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: 11684308Abstract: The invention relates to a method of determining the laxity of a joint (9, 15) of a human (5) or an animal. The method comprises providing at least one patient-specific geometrical model (1) of at least one bone and/or at least one prosthesis comprised by the joint. Known loads are applied to the joint or to a part of the body connected to the joint, and a series of actual images (16) of the joint are obtained while the loads are applied. Then the at least one patient-specific geometrical model (1) is registered onto the actual images (16). Based thereon relative displacement and/or rotation of the at least one bone and/or at least one prosthesis is calculated as a function of the applied loads, and based thereon a measure of the laxity of the joint is determined. The invention further relates to a system for performing such a method and to a computer readable medium for performing such a method.Type: GrantFiled: January 8, 2018Date of Patent: June 27, 2023Assignee: Aalborg UniversitetInventors: Michael Skipper Andersen, Jonas Stensgaard Stoltze, Dennis Pedersen
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Patent number: 10950101Abstract: An electronic theft-alerting system, including magnetometers, such as multiaxis magnetometers, arranged in respective stations and configured to output respective vector signals representing movement of respective magnetic field vectors; and a signal processor coupled to receive the first and second vector signals, and configured to detect a corresponding movement of a first magnetic field vector and a second magnetic field vector. Detecting commencement and continuance of fluctuation the first magnetic field vector, determining whether to raise or forgo to raise an alarm that warns about a possible theft-related event in response to the determining of commencement and continuance of fluctuation of the first magnetic field vector or the second magnetic field vector.Type: GrantFiled: October 5, 2018Date of Patent: March 16, 2021Assignee: Alert Systems ApSInventors: Verner Falkenberg, Dennis Pedersen
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Patent number: 10832544Abstract: A method of detecting a metal object in a detection zone between a transmitting antenna (101) and a receiving antenna (102) installed in proximity of a revolving door (110), the method comprising: in real time: demodulating a signal received via the receiving antenna (102) to provide a first signal (y; 501); filtering the first signal (y; 501) by a first adaptive notch filter (201) to suppress at least a fundamental tone or a fundamental tone and one or more harmonic tones of the fundamental tone in a filtered signal (e; 502); and processing the filtered signal (e; 502) to detect an impulse (504), and while the impulse develops, computing a feature value of the impulse and determining whether the feature value exceeds a threshold. In case the feature value exceeds the threshold, setting a first alarm detector. In this way a so-called booster bag can be reliably detected the moment it passes the detection zone.Type: GrantFiled: July 17, 2017Date of Patent: November 10, 2020Assignee: Alert Systems ApSInventor: Dennis Pedersen
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Patent number: 10796546Abstract: A method of detecting a metal object in a detection zone between a transmitting antenna (101) and a receiving antenna (102) installed in proximity of an automatic door (105; 106), the method comprising: demodulating an amplitude modulated signal received via the receiving antenna to provide a first signal; and on a recurring basis: detecting a first base level of the first signal at a point in time when the first signal is settled at a magnitude at or about the first base level, and following a first signal transition of the first signal, detecting a second base level of the first signal at a point in time when the first signal is settled at a magnitude at or about the second base level; predicting a lower base level to be the lowest of the first base level and the second base level and setting a first threshold value, which is set relative to and lower than the lower base level predicted; and evaluating whether the first signal falls below the first threshold value and setting a first alarm detector at a poiType: GrantFiled: July 17, 2017Date of Patent: October 6, 2020Assignee: ALERT SYSTEMS ApSInventor: Dennis Pedersen
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Publication number: 20200294374Abstract: An electronic theft-alerting system, including magnetometers, such as multiaxis magnetometers, arranged in respective stations and configured to output respective vector signals representing movement of respective magnetic field vectors; and a signal processor coupled to receive the first and second vector signals, and configured to detect a corresponding movement of a first magnetic field vector and a second magnetic field vector. Detecting commencement and continuance of fluctuation the first magnetic field vector, determining whether to raise or forgo to raise an alarm that warns about a possible theft-related event in response to the determining of commencement and continuance of fluctuation of the first magnetic field vector or the second magnetic field vector.Type: ApplicationFiled: October 5, 2018Publication date: September 17, 2020Applicant: ALERT SYSTEMS APSInventors: Verner FALKENBERG, Dennis PEDERSEN
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Publication number: 20200000399Abstract: The invention relates to a method of determining the laxity of a joint (9, 15) of a human (5) or an animal. The method comprises providing at least one patient-specific geometrical model (1) of at least one bone and/or at least one prosthesis comprised by the joint. Known loads are applied to the joint or to a part of the body connected to the joint, and a series of actual images (16) of the joint are obtained while the loads are applied. Then the at least one patient-specific geometrical model (1) is registered onto the actual images (16). Based thereon relative displacement and/or rotation of the at least one bone and/or at least one prosthesis is calculated as a function of the applied loads, and based thereon a measure of the laxity of the joint is determined. The invention further relates to a system for performing such a method and to a computer readable medium for performing such a method.Type: ApplicationFiled: January 8, 2018Publication date: January 2, 2020Applicant: Aalborg UniversitetInventors: Michael Skipper Andersen, Jonas Stensgaard Stoltze, Dennis Pedersen
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Publication number: 20190366158Abstract: An exercise training system is provided having a system controller and a plurality of stimulant target units connected via a wireless network to the system controller. Each stimulant target unit has a light source providing light to stimulate a user, a proximity sensor providing an output of a distance between the proximity sensor and an object external to the unit, and means for providing feedback to the user to signal that the unit has been actuated by the user. The system controller includes a program for activating the stimulant target units in a sequence. The reaction by the user to the illumination is registered when the user brings a body part or other object to within a selected distance of the proximity sensor, this distance being programmable by the user.Type: ApplicationFiled: May 7, 2019Publication date: December 5, 2019Inventors: Derek D'ANDRADE, Dennis PEDERSEN, Erik Vege RASMUSSEN
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Publication number: 20190244502Abstract: A method of detecting a metal object in a detection zone between a transmitting antenna (101) and a receiving antenna (102) installed in proximity of a revolving door (110), the method comprising: in real time: demodulating a signal received via the receiving antenna (102) to provide a first signal (y; 501); filtering the first signal (y; 501) by a first adaptive notch filter (201) to suppress at least a fundamental tone or a fundamental tone and one or more harmonic tones of the fundamental tone in a filtered signal (e; 502); and processing the filtered signal (e; 502) to detect an impulse (504), and while the impulse develops, computing a feature value of the impulse and determining whether the feature value exceeds a threshold. In case the feature value exceeds the threshold, setting a first alarm detector. In this way a so-called booster bag can be reliably detected the moment it passes the detection zone.Type: ApplicationFiled: July 17, 2017Publication date: August 8, 2019Inventor: Dennis PEDERSEN
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Publication number: 20190164397Abstract: A method of detecting a metal object in a detection zone between a transmitting antenna (101) and a receiving antenna (102) installed in proximity of an automatic door (105; 106), the method comprising: demodulating an amplitude modulated signal received via the receiving antenna to provide a first signal; and on a recurring basis: detecting a first base level of the first signal at a point in time when the first signal is settled at a magnitude at or about the first base level, and following a first signal transition of the first signal, detecting a second base level of the first signal at a point in time when the first signal is settled at a magnitude at or about the second base level; predicting a lower base level to be the lowest of the first base level and the second base level and setting a first threshold value, which is set relative to and lower than the lower base level predicted; and evaluating whether the first signal falls below the first threshold value and setting a first alarm detector at a poiType: ApplicationFiled: July 17, 2017Publication date: May 30, 2019Inventor: Dennis PEDERSEN
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Patent number: 10279216Abstract: An exercise training system is provided having a system controller and a plurality of stimulant target units connected via a wireless network to the system controller. Each stimulant target unit has a light source providing light to stimulate a user, a proximity sensor providing an output of a distance between the proximity sensor and an object external to the unit, and means for providing feedback to the user to signal that the unit has been actuated by the user. The system controller includes a program for activating the stimulant target units in a sequence. The reaction by the user to the illumination is registered when the user brings a body part or other object to within a selected distance of the proximity sensor, this distance being programmable by the user.Type: GrantFiled: November 7, 2017Date of Patent: May 7, 2019Assignee: FITLIGHT SPORTS CORP.Inventors: Derek D'Andrade, Dennis Pedersen, Erik Vege Rasmussen
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Publication number: 20180214744Abstract: An exercise training system is provided having a system controller and a plurality of stimulant target units connected via a wireless network to the system controller. Each stimulant target unit has a light source providing light to stimulate a user, a proximity sensor providing an output of a distance between the proximity sensor and an object external to the unit, and means for providing feedback to the user to signal that the unit has been actuated by the user. The system controller includes a program for activating the stimulant target units in a sequence. The reaction by the user to the illumination is registered when the user brings a body part or other object to within a selected distance of the proximity sensor, this distance being programmable by the user.Type: ApplicationFiled: November 7, 2017Publication date: August 2, 2018Inventors: Derek D'ANDRADE, Dennis PEDERSEN, Erik Vege RASMUSSEN
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Patent number: 9808671Abstract: An exercise training system is provided having a system controller and a plurality of stimulant target units connected via a wireless network to the system controller. Each stimulant target unit has a light source providing light to stimulate a user, a proximity sensor providing an output of a distance between the proximity sensor and an object external to the unit, and means for providing feedback to the user to signal that the unit has been actuated by the user. The system controller includes a program for activating the stimulant target units in a sequence. The reaction by the user to the illumination is registered when the user brings a body part or other object to within a selected distance of the proximity sensor, this distance being programmable by the user.Type: GrantFiled: November 15, 2012Date of Patent: November 7, 2017Assignee: FITLIGHT SPORTS CORP.Inventors: Derek D'Andrade, Dennis Pedersen, Erik Veje Rasmussen
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Patent number: 9652956Abstract: A tag-based electronic theft-preventing system further comprises a first and second multi-axis magnetometer arranged at the two sides of an entrance to a shopping area and configured to output a first and second vector signal representing movement of a first and second magnetic field vector, respectively. A signal processor estimates a first rotation of the first magnetic field vector and a second rotation of the second magnetic field vector, and generates an indicator signal comprising indication of a counter-direction rotation or a same-direction rotation. The system computes therefrom if an unlock magnet for an anti-shoplifting tag is entering the shopping area and determines whether to warn about a possible theft-related event. Other indicators contemplated in the processing are for instance vector magnitude, continuity of detection, duration of detection, change in electric field.Type: GrantFiled: May 13, 2014Date of Patent: May 16, 2017Assignee: Alert Systems ApSInventors: Verner Falkenberg, Dennis Pedersen
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Publication number: 20160093183Abstract: A tag-based electronic theft-preventing system further comprises a first and second multi-axis magnetometer arranged at the two sides of an entrance to a shopping area and configured to output a first and second vector signal representing movement of a first and second magnetic field vector, respectively. A signal processor estimates a first rotation of the first magnetic field vector and a second rotation of the second magnetic field vector, and generates an indicator signal comprising indication of a counter-direction rotation or a same-direction rotation. The system computes therefrom if an unlock magnet for an anti-shoplifting tag is entering the shopping area and determines whether to warn about a possible theft-related event. Other indicators contemplated in the processing are for instance vector magnitude, continuity of detection, duration of detection, change in electric field.Type: ApplicationFiled: May 13, 2014Publication date: March 31, 2016Inventors: Verner Falkenberg, Dennis Pedersen
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Publication number: 20140369695Abstract: An exercise training system is provided having a system controller and a plurality of stimulant target units connected via a wireless network to the system controller. Each stimulant target unit has a light source providing light to stimulate a user, a proximity sensor providing an output of a distance between the proximity sensor and an object external to the unit, and means for providing feedback to the user to signal that the unit has been actuated by the user. The system controller includes a program for activating the stimulant target units in a sequence. The reaction by the user to the illumination is registered when the user brings a body part or other object to within a selected distance of the proximity sensor, this distance being programmable by the user.Type: ApplicationFiled: November 15, 2012Publication date: December 18, 2014Inventors: Derek D'Andrade, Dennis Pedersen, Erik Veje Rasmussen
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Patent number: 3948000Abstract: A hydraulic door opener comprising a closed hydraulic circuit including a motor for actuating a door operating spring surrounded by a housing which forms a component part of the hydraulic circuit and serves as a reservoir for the hydraulic liquid.Type: GrantFiled: July 25, 1974Date of Patent: April 6, 1976Assignee: Ingenjorsfirman Besam AktiebolagInventor: Pauli Dennis Pedersen