Patents by Inventor Henrik Jonsson
Henrik Jonsson 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: 20140320688Abstract: An image sensing apparatus has a light sensitive area and a control unit. The light sensitive area registers image data in response to an incoming amount of light, and is operable in an active mode wherein image data can be read out there from as well as in a standby mode wherein image data cannot be read out. The control unit produces a control signal setting the light sensitive area to operate in the active mode and the standby mode respectively in a cyclic manner during an operation period, which preferably encompasses multiple data frame read-outs of image data from the light sensitive area.Type: ApplicationFiled: April 10, 2014Publication date: October 30, 2014Applicant: Tobii Technology ABInventors: Marten Skogo, Henrik Jonsson, Mattias O. Karlsson, Mattias Kuldkepp, John Elvesjo, Ingemar Mattias Karlsson
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Publication number: 20140268055Abstract: An eye/gaze tracker with first and second light sources each configured to illuminate an eye of a subject and controlled to selectively emit light towards the eye in such a manner that within an operation sequence the eye is illuminated by the first light source during at least one first interval and by the second light source during at least one second interval. An image sensor has a plurality of photodiodes each of which is associated with first and second charge storages configured to store electric charges based on an amount of light reaching the photodiode. At least one switch of the image sensor is controlled such that the electric charges are stored in the first charge storage as a result of the illumination during the at least one first interval and in the second charge storage as a result of the illumination during the at least one second interval.Type: ApplicationFiled: March 7, 2014Publication date: September 18, 2014Applicant: Tobii Technology ABInventors: Marten Skogo, Henrik Jonsson, John Elvesjo
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Patent number: 8823803Abstract: An IR camera includes a thermal radiation capturing arrangement for capturing thermal radiation of an imaged view in response to input control unit(s) receiving user inputs from a user of the IR camera; a processing unit arranged to process the thermal radiation data in order for the thermal radiation data to be displayed by an IR camera display as thermal images; and an IR camera display arranged to display thermal images to a user of the IR camera. The processing unit is further arranged to determine at least one temperature reference value representing the temperature of the surrounding environment of the imaged view; and calculate at least one output power value indicative of an amount of energy dissipated in a part of the imaged view by using the temperature value of the thermal radiation data corresponding to said part of the imaged view and the at least one determined temperature reference value.Type: GrantFiled: February 22, 2013Date of Patent: September 2, 2014Assignee: FLIR Systems ABInventors: Katrin Strandemar, Henrik Jönsson, Torbjörn Hamrelius, Gunnar Palm
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Patent number: 8803093Abstract: An IR camera is disclosed, comprising two IR detectors for detecting a first and a second image of the imaged area. A beamsplitter is operable to split the incoming radiation into a first beam comprising a first wavelength spectrum and a second beam comprising a second wavelength spectrum different from the first wavelength spectrum. The first beam is received at the first IR detector and the second beam is received at the second IR detector. A processor is operable to calculate properties of the imaged area based on the first and the second image in relationship to each other. The information obtained may be used, for example, to detect the presence or identity of a gas or to determine the material properties of an imaged object.Type: GrantFiled: June 2, 2009Date of Patent: August 12, 2014Assignee: FLIR Systems ABInventor: Henrik Jönsson
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Publication number: 20130300875Abstract: There is disclosed a method, arrangement, and computer program product for correcting distortion present in an image captured using an infrared (IR) arrangement, the method for an embodiment comprising: capturing a first image using a first imaging system comprised in said IR arrangement; and correcting image distortion of the first image based on a pre-determined distortion relationship. According to embodiments, the method may further comprise capturing a second image using a second imaging system comprised in said IR arrangement, wherein: said distortion relationship represents distortion caused by said first and/or second imaging systems of said IR arrangement; and said correcting of image distortion of the first image comprises correcting image distortion with relation to the second image based on said pre-determined distortion relationship, wherein the distortion relationship represents distortion caused by said first and/or second imaging systems.Type: ApplicationFiled: July 15, 2013Publication date: November 14, 2013Inventors: Katrin Strandemar, Henrik Jönsson
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Patent number: 8384783Abstract: An IR camera includes a thermal radiation capturing arrangement for capturing thermal radiation of an imaged view in response to input control unit(s) receiving user inputs from a user of the IR camera; a processing unit arranged to process the thermal radiation data in order for the thermal radiation data to be displayed by an IR camera display as thermal images; and an IR camera display arranged to display thermal images to a user of the IR camera. The processing unit is further arranged to determine at least one temperature reference value representing the temperature of the surrounding environment of the imaged view; and calculate at least one output power value indicative of an amount of energy dissipated in a part of the imaged view by using the temperature value of the thermal radiation data corresponding to said part of the imaged view and the at least one determined temperature reference value.Type: GrantFiled: September 29, 2009Date of Patent: February 26, 2013Assignee: Flir Systems ABInventors: Katrin Strandemar, Henrik Jönsson, Torbjörn Hamrelius, Gunnar Palm
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Patent number: 8354639Abstract: The invention relates to an IR camera for capturing thermal images of an imaged view, the IR camera comprising an IR camera display arranged to display the captured thermal images to a user of the IR camera according to a view parameter setting. The IR camera is characterized in that it further comprises a display control unit arranged to automatically adjust the view parameter setting in the IR camera display based on a temperature reference area in the captured thermal images, wherein the temperature reference area is obtained using an indication means when a manual indication is performed by the user of the IR camera. The invention further relates to a method for adjusting view parameter settings in an IR camera and a computer program product.Type: GrantFiled: November 25, 2008Date of Patent: January 15, 2013Assignee: FLIR Systems ABInventors: Henrik Jönsson, Erland George-Svahn
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Publication number: 20110074959Abstract: An IR camera comprises: a thermal radiation capturing arrangement for capturing thermal radiation of an imaged view in response to input control unit(s) receiving user inputs from a user of the IR camera; a processing unit arranged to process the thermal radiation data in order for the thermal radiation data to be displayed by an IR camera display as thermal images; and a IR camera display arranged to display thermal images to a user of the IR camera. The IR camera is characterized in that the processing unit is further arranged to: determine at least one temperature reference value representing the temperature of the surrounding environment of the imaged view; and calculate at least one output power value indicative of an amount of energy dissipated in a part of the imaged view by using the temperature value of the thermal radiation data corresponding to said part of the imaged view and the at least one determined temperature reference value.Type: ApplicationFiled: September 29, 2009Publication date: March 31, 2011Applicant: FLIR Systems ABInventors: Katrin STRANDEMAR, Henrik JÖNSSON, Torbjörn HAMRELIUS, Gunnar PALM
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Publication number: 20100301214Abstract: An IR camera is disclosed, comprising two IR detectors for detecting a first and a second image of the imaged area. A beamsplitter is operable to split the incoming radiation into a first beam comprising a first wavelength spectrum and a second beam comprising a second wavelength spectrum different from the first wavelength spectrum. The first beam is received at the first IR detector and the second beam is received at the second IR detector. A processor is operable to calculate properties of the imaged area based on the first and the second image in relationship to each other. The information obtained may be used, for example, to detect the presence or identity of a gas or to determine the material properties of an imaged object.Type: ApplicationFiled: June 2, 2009Publication date: December 2, 2010Applicant: FLIR Systems ABInventor: Henrik Jõnsson
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Publication number: 20100127171Abstract: The invention relates to an IR camera for capturing thermal images of an imaged view, the IR camera comprising an IR camera display arranged to display the captured thermal images to a user of the IR camera according to a view parameter setting. The IR camera is characterized in that it further comprises a display control unit arranged to automatically adjust the view parameter setting in the IR camera display based on a temperature reference area in the captured thermal images, wherein the temperature reference area is obtained using an indication means when a manual indication is performed by the user of the IR camera. The invention further relates to a method for adjusting view parameter settings in an IR camera and a computer program product.Type: ApplicationFiled: November 25, 2008Publication date: May 27, 2010Applicant: FLIR Systems ABInventors: Henrik Jonsson, Erland George-Svahn
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Publication number: 20090273675Abstract: An infrared camera is arranged to compensate for temperature variations of the camera by Recording the output signal of each pixel of the detector during a shutter operation Using the recorded signal from each pixel to update a temperature offset map stored in the camera to ensure uniform signal levels at different camera temperatures, Said code means being arranged to perform the following steps during operation of the camera: save at least a first temperature offset map during a first shutter operation at a first temperature and a second temperature offset map during a second shutter operation at a second temperature fit the data from the at least first and second offset maps to a curve using the curve to compensate for variations in signal output caused by temperature variations.Type: ApplicationFiled: May 5, 2008Publication date: November 5, 2009Applicant: FLIR SYSTEMS ABInventor: Henrik Jonsson
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Patent number: 6929750Abstract: The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprising a micro-technology channel system with an integrated branching point or branching fork, and a single ultrasound source. One of the characteristics of the invention is that the single ultrasound source, which generates the standing waves, excites the complete structure including the channel system. No special reflectors or the like are needed. Extremely thin dividers can separate the flow, thereby enhancing the effectiveness of the device. The device could be manufactured in silicon and the ultrasound energy could preferably be delivered by a piezoelectric element.Type: GrantFiled: March 11, 2002Date of Patent: August 16, 2005Assignee: Erysave ABInventors: Thomas Laurell, Mats Allers, Henrik Jönsson, Hans W. Persson, Andreas Nilsson, Filip Tobias Petersson
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Publication number: 20040069717Abstract: The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprisinga micro-technology channel system with an integrated branching point or branching fork, and a single ultrasound source. One of the characteristics of the invention is that the single ultrasound source, which generates the standing waves, excites the complete structure including the channel system. No special reflectors or the like are needed. Extremely thin dividers can separate the flow, thereby enhancing the effectiveness of the device. The device could be manufactured in silicon and the ultrasound energy could preferably be delivered by a piezoelectric element.Type: ApplicationFiled: August 13, 2003Publication date: April 15, 2004Inventors: Thomas Laurell, Mats Allers, Henrik Jonsson, Hans W Persson, Andreas Nilsson, Filip Tobias Petersson