Patents by Inventor David Hasler
David Hasler 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: 20160256066Abstract: Body electrode system including a set of standalone electrodes units for measuring physiological signals of a body part and/or electrically stimulate a body part. A connecting garment provides electrical connection between each standalone unit of the set. Each unit of the set is individually positionable at a specific chosen position onto the body to be sensed and/or stimulated. The garment is electrically connectable to said units, preferably after placement of said set onto the body.Type: ApplicationFiled: October 21, 2013Publication date: September 8, 2016Inventors: Olivier Chetelat, Damien Ferrario, Thomas Parkel, David Hasler
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Patent number: 9430733Abstract: A security device for the identification or authentication of valuable goods is described, including a thin material layer (22, 26) presenting a stochastic pattern including micro/submicrostructures, where the latter are arranged in blobs (2) each of which presents a complexity factor Cx = L 2 4 ? ? · A , where L is the perimeter of the blob and A its area, and wherein blobs having a Cx value greater than or equal to 2 cover at least 5%, preferably at least 15%, of the device surface. According to a preferred embodiment, the material layer may include a film including at least a first and a second polymers arranged respectively within a first and a second phases defining the micro/submicrostructures. Preferred processes of fabrication are also disclosed, as well as a method for securing a valuable good based on such a security device.Type: GrantFiled: May 7, 2008Date of Patent: August 30, 2016Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA—RECHERCHE ET DEVELOPPEMENTInventors: Nicolas Blondiaux, David Hasler, Raphael Pugin, Edoardo Franzi
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Publication number: 20160209248Abstract: A positioning system, in particular, positioning in six dimensions of a sensor with respect to an assembly composed of a multitude of LEDs, is provided. The sensor is a shadow sensor and has a mask and a 2D imager. By recording the shadow of the mask cast by each LED on the imager, and by properly multiplexing the LEDs, the system can compute the 6D position of the LED assembly with respect to the shadow sensor. This computation is based, in part, on treating the shadow of the mask cast on the imager as the equivalent of the projection of light in a pinhole camera.Type: ApplicationFiled: January 15, 2015Publication date: July 21, 2016Inventor: David Hasler
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Publication number: 20160209203Abstract: A positioning system, in particular, six-dimensions positioning system of a shadow sensor with respect to a constellation of light sources is provided. The sensor can be a shadow sensor and has a mask and a 2D imager. By recording the shadow of the mask cast by each light source on the imager, and by properly multiplexing the light sources, the system can compute the 6D position of the shadow sensor with respect to the constellation of light sources. This computation is based, in part, on treating the shadow of the mask cast on the imager as the equivalent of the projection of light in a pinhole or projective camera. In one embodiment, the system is applied in a surgical domain. In another embodiment, the system is rapidly deployed.Type: ApplicationFiled: January 14, 2016Publication date: July 21, 2016Inventors: Charles BAUR, Amina CHEBIRA, Edoardo FRANZI, Eric GRENET, David HASLER
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Patent number: 9243898Abstract: A position measurement system for determining 2D displacement or position of a mobile element with respect to a reference frame, including: a point light; an optical mask having transparent and opaque areas defining a repetitive pattern on at least one side of its surfaces; an imager, fixed to a mobile element, including integrated electronic circuits allowing detection, computing and analyzing of a shadow projected by the optical mask. The position measurement system includes an optical diffuser plate between the light source and the mask. The imager, mask and diffuser plate form an assembly so as to produce a light spot created by the scattering of the incident light beam emitted by the light source on the diffuser plate. The mask positioned between the diffuser plate and imager, produces a shadow on the imager, allowing to compute and provide 2D position of the mobile element relative to the fixed reference frame.Type: GrantFiled: April 14, 2014Date of Patent: January 26, 2016Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA RECHERCHE ET DEVELOPPEMENTInventors: Peter Masa, David Hasler, Eric Grenet, Ross Stanley
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Patent number: 9103661Abstract: A system measures the position of a light source in space using an imager and transparent surface with a pattern on top. The pattern consists of a repetitive pattern and a distinctive element. The system achieves sub-micron precision. It also handles the measurement of several light sources simultaneously, and the measurement of the position of a retroreflector instead of the light.Type: GrantFiled: July 14, 2011Date of Patent: August 11, 2015Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA—RECHERCHE ET DEVELOPPMENTInventors: Eric Grenet, Peter Masa, Edoardo Franzi, David Hasler
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Publication number: 20140368836Abstract: A position measurement system for determining 2D displacement or position of a mobile element with respect to a reference frame, including: a point light; an optical mask having transparent and opaque areas defining a repetitive pattern on at least one side of its surfaces; an imager, fixed to a mobile element, including integrated electronic circuits allowing detection, computing and analyzing of a shadow projected by the optical mask. The position measurement system includes an optical diffuser plate between the light source and the mask. The imager, mask and diffuser plate form an assembly so as to produce a light spot created by the scattering of the incident light beam emitted by the light source on the diffuser plate. The mask positioned between the diffuser plate and imager, produces a shadow on the imager, allowing to compute and provide 2D position of the mobile element relative to the fixed reference frame.Type: ApplicationFiled: April 14, 2014Publication date: December 18, 2014Inventors: Peter MASA, David HASLER, Eric GRENET, Ross STANLEY
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Patent number: 8698892Abstract: A one-dimension position measurement system includes: a first ruler having a first one-dimension binary code si applied thereon, a camera for acquiring a picture of a portion of the code si, the portion having a length of I bits, and some processing elements. Each codeword of length I of the one-dimension code si is unique within the whole code si. A codeword ai is read from the acquired picture, and the processing elements are implemented for computing an absolute position p of the codeword ai of the code si from: (I). An ad-hoc interpolation method is used to obtain a precision way below the distance between two bits of the codewords. The code si may be applied on the ruler by using some geometric primitives, a geometric primitive for encoding a “1” being different from a geometric primitive for encoding a “0”, both having the same horizontal projection. The horizontal projection is then used for fine interpolation, achieving nanometer-scale resolution.Type: GrantFiled: April 3, 2009Date of Patent: April 15, 2014Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et DeveloppementInventors: David Hasler, Peter Masa, Pascal Heim, Edoardo Franzi
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Publication number: 20130120763Abstract: A system measures the position of a light source in space using an imager and transparent surface with a pattern on top. The pattern consists of a repetitive pattern and a distinctive element. The system achieves sub-micron precision. It also handles the measurement of several light sources simultaneously, and the measurement of the position of a retroreflector instead of the light.Type: ApplicationFiled: July 14, 2011Publication date: May 16, 2013Inventors: Eric Grenet, Peter Masa, Edoardo Franzi, David Hasler
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Publication number: 20120026321Abstract: A one-dimension position measurement system includes: a first ruler having a first one-dimension binary code si applied thereon, a camera for acquiring a picture of a portion of the code si, the portion having a length of I bits, and some processing elements. Each codeword of length I of the one-dimension code si is unique within the whole code si A codeword ai is read from the acquired picture, and the processing elements are implemented for computing an absolute position p of the codeword ai of the code si from: (I). An adhoc interpolation method is used to obtain a precision way below the distance between two bits of the codewords. The code si may be applied on the ruler by using some geometric primitives, a geometric primitive for encoding a “1” being different from a geometric primitive for encoding a “0”, both having the same horizontal projection. The horizontal projection is then used for fine interpolation, achieving nanometre-scale resolution.Type: ApplicationFiled: April 3, 2009Publication date: February 2, 2012Applicant: CSEM CENTRE SUISSE D'ELECTONIQUE ET DE MIROTECHNIQUE-CHINQUE SA RECHERCHE ET DEVELInventors: David Hasler, Peter Masa, Pascal Heim, Edoardo Franzi
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Publication number: 20100195916Abstract: A security device for the identification or authentication of valuable goods is described, including a thin material layer (22, 26) presenting a stochastic pattern including micro/submicrostructures, where the latter are arranged in blobs (2) each of which presents a complexity factor Cx = L 2 4 ? ? · A , where L is the perimeter of the blob and A its area, and wherein blobs having a Cx value greater than or equal to 2 cover at least 5%, preferably at least 15%, of the device surface. According to a preferred embodiment, the material layer may include a film including at least a first and a second polymers arranged respectively within a first and a second phases defining the micro/submicrostructures. Preferred processes of fabrication are also disclosed, as well as a method for securing a valuable good based on such a security device.Type: ApplicationFiled: May 7, 2008Publication date: August 5, 2010Applicant: CSEM Centre Suisse d'Electronique ef de MicrotechnInventors: Nicolas Blondiaux, David Hasler, Raphael Pugin, Edoardo Franzi
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Patent number: 7417769Abstract: A color management system using distributed profiles includes a color printer adapted to print controlled color using a custom profile. The color printer system creates a custom profile by reading its initial characterization data, the profiles of the inks and the profile of the paper used in the printer. The color printing system includes a spectral measurement module adapted to generate spectral measurement of an output of the color printer. The printing system computes its initial characterization data by using the output of the color printer, measured by the spectral measurement module. The printing system updates the paper profile, the ink profile and/or the printer characterization data based on the measurement of the spectral measurement module.Type: GrantFiled: June 15, 2004Date of Patent: August 26, 2008Assignee: X-Rite Europe AGInventors: David Hasler, Roland Campa, Martin Beyer, Francis Lamy, Peter Ehbets, Bruno Zimmermann
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Patent number: 6993200Abstract: A system and method for rendering high dynamic range images includes a rendering manager that divides an original luminance image into a plurality of original subband images. The rendering manager converts the original subband images into original contrast images which are converted into original perceived contrast images. The rendering manager performs a compression procedure upon the original perceived contrast images to produce compressed perceived contrast images. The rendering manager converts the compressed perceived contrast images into compressed contrast images which are converted into compressed subband images. The rendering manager performs a subband combination procedure for combining the compressed subband images together with a lowest-frequency subband image to generate a rendered luminance image. The rendering manager may combines the rendered luminance image with corresponding chrominance information to generate a rendered composite image.Type: GrantFiled: November 20, 2001Date of Patent: January 31, 2006Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Ingeborg Tastl, David Hasler
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Publication number: 20050094209Abstract: A color management system using distributed profiles includes a color printer adapted to print controlled color using a custom profile. The color printer system creates a custom profile by reading its initial characterization data, the profiles of the inks and the profile of the paper used in the printer. The color printing system includes a spectral measurement module adapted to generate spectral measurement of an output of the color printer. The printing system computes its initial characterization data by using the output of the color printer, measured by the spectral measurement module. The printing system updates the paper profile, the ink profile and/or the printer characterization data based on the measurement of the spectral measurement module.Type: ApplicationFiled: June 15, 2004Publication date: May 5, 2005Inventors: David Hasler, Roland Campa, Martin Beyer, Francis Lamy, Peter Ehbets, Bruno Zimmermann
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Publication number: 20030103677Abstract: A system and method for effectively rendering high dynamic range images may include a rendering manager that initially divides an original luminance image into a plurality of original subband images. The rendering manager may then convert the original subband images into original contrast images which may then be converted into original perceived contrast images. The rendering manager may then perform a compression procedure upon the original perceived contrast images to produce compressed perceived contrast images. The rendering manager may next convert the compressed perceived contrast images into compressed contrast images which may then be converted into compressed subband images. The rendering manager may then perform a subband combination procedure for combining the compressed subband images together with a lowest-frequency subband image to thereby generate a rendered luminance image.Type: ApplicationFiled: November 20, 2001Publication date: June 5, 2003Inventors: Ingeborg Tastl, David Hasler