Patents by Inventor Nicolai W. Christie
Nicolai W. Christie 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: 10095906Abstract: An electronic sensor forms a grid to detect surface features of a proximally located object, such as a fingerprint. The grid includes a plurality of parallel drive lines connectable to a drive source and a plurality of parallel pickup lines oriented substantially perpendicular to the drive lines and overlapping the drive lines. The drive lines are separated from the pickup lines by an insulating dielectric layer. The overlaps where the drive lines and pickup lines cross define impedance-sensitive electrode pairs which act as pixels at which surface features of the proximally located object are detected. One or more conductive probes extend from one or more corresponding impedance-sensitive electrode pairs, through an overlay layer of insulating material, to the sensing surface.Type: GrantFiled: February 19, 2015Date of Patent: October 9, 2018Assignee: IDEX ASAInventors: Fred G. Benkley, III, Ralph W. Bernstein, Nicolai W. Christie, Geir Ivar Bredholt, Øyvind Sløgedal
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Patent number: 9881196Abstract: A fingerprint sensor and fingerprint sensor system especially for integration in a device having an overlay made of an insulating material comprises a plurality of sensing elements positioned on a first side of the overlay; a plurality of probes positioned in a predetermined pattern defining a fingerprint sensing area on a second side of the overlay, the plurality of probes extending from the first side of the overlay at least partially through the overlay; a plurality of conductor leads on the first side of the overlay interconnecting the plurality of probes with the plurality of sensing elements; a plurality of amplifiers connected to the plurality of sensing elements, the number of amplifiers being less than the number of sensing elements; and an activation circuit connected to the plurality of sensing elements, the activation circuit being adapted to output at least one activation signal.Type: GrantFiled: November 18, 2016Date of Patent: January 30, 2018Assignee: IDEX ASAInventors: Ralph W. Bernstein, Nicolai W. Christie, Geir Ivar Bredholt, Øyvind Sløgedal
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Patent number: 9864896Abstract: A biometric sensor device for measuring structures and properties of an object of organic tissue, especially a fingerprint sensor, includes a plurality of linear sensing arrays adapted to generate a respective plurality of measurement data at a predetermined sampling rate for a predetermined time period, based upon a sliding movement of the organic tissue over the plurality of linear sensing arrays, and a processor adapted to generate a partial image of the organic tissue from each of the respective plurality of measurement data. The processor is further adapted to generate a complete image of the organic tissue by combining the partial image generated from each of the plurality of measurement data, wherein the complete image is larger than each of the partial images, and the predetermined time period is defined so as to measure a section of said organic tissue given by the distance between two linear arrays.Type: GrantFiled: May 26, 2015Date of Patent: January 9, 2018Assignee: IDEX ASAInventor: Nicolai W. Christie
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Patent number: 9625408Abstract: A method and apparatus for electrical detection of a finger print has a reduced number of interconnect signals between a sensor area and a substrate and an electronic circuit for excitation and detection of the finger print compared to a single-chip finger print sensor. The individual signals are connected internally at the sensor substrate in such a way that the response from the individual sensor elements can be separated from each other. Cross-talk is reduced by keeping the sensor outputs at a constant potential, thus eliminating the effect of capacitive coupling between different sensor outputs and also between sensor outputs and a ground or reference potential.Type: GrantFiled: October 10, 2014Date of Patent: April 18, 2017Assignee: IDEX ASAInventors: Nicolai W. Christie, Geir Ivar Bredholt
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Publication number: 20170068836Abstract: A fingerprint sensor and fingerprint sensor system especially for integration in a device having an overlay made of an insulating material comprises a plurality of sensing elements positioned on a first side of the overlay; a plurality of probes positioned in a predetermined pattern defining a fingerprint sensing area on a second side of the overlay, the plurality of probes extending from the first side of the overlay at least partially through the overlay; a plurality of conductor leads on the first side of the overlay interconnecting the plurality of probes with the plurality of sensing elements; a plurality of amplifiers connected to the plurality of sensing elements, the number of amplifiers being less than the number of sensing elements; and an activation circuit connected to the plurality of sensing elements, the activation circuit being adapted to output at least one activation signal.Type: ApplicationFiled: November 18, 2016Publication date: March 9, 2017Applicant: IDEX ASAInventors: Ralph W. BERNSTEIN, Nicolai W. CHRISTIE, Geir Ivar BREDHOLT, Øyvind SLØGEDAL
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Patent number: 9501685Abstract: A fingerprint sensor and fingerprint sensor system especially for integration in a device having an overlay made of an insulating material comprises a plurality of sensing elements positioned on a first side of the overlay; a plurality of probes positioned in a predetermined pattern defining a fingerprint sensing area on a second side of the overlay, the plurality of probes extending from the first side of the overlay at least partially through the overlay; a plurality of conductor leads on the first side of the overlay interconnecting the plurality of probes with the plurality of sensing elements; a plurality of amplifiers connected to the plurality of sensing elements, the number of amplifiers being less than the number of sensing elements; and an activation circuit connected to the plurality of sensing elements, the activation circuit being adapted to output at least one activation signal.Type: GrantFiled: February 19, 2014Date of Patent: November 22, 2016Assignee: IDEX ASAInventors: Ralph W. Bernstein, Nicolai W. Christie, Geir Ivar Bredholt, Øyvind Sløgedal
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Publication number: 20150347809Abstract: A biometric sensor device for measuring structures and properties of an object of organic tissue, especially a fingerprint sensor, includes a plurality of linear sensing arrays adapted to generate a respective plurality of measurement data at a predetermined sampling rate for a predetermined time period, based upon a sliding movement of the organic tissue over the plurality of linear sensing arrays, and a processor adapted to generate a partial image of the organic tissue from each of the respective plurality of measurement data. The processor is further adapted to generate a complete image of the organic tissue by combining the partial image generated from each of the plurality of measurement data, wherein the complete image is larger than each of the partial images, and the predetermined time period is defined so as to measure a section of said organic tissue given by the distance between two linear arrays.Type: ApplicationFiled: May 26, 2015Publication date: December 3, 2015Applicant: IDEX ASAInventor: NICOLAI W. CHRISTIE
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Patent number: 9122901Abstract: The invention relates to a sensor for detection of properties and structures of an organic tissue and its surface, e.g.Type: GrantFiled: December 28, 2010Date of Patent: September 1, 2015Assignee: IDEX ASAInventors: Øyvind Sløgedal, Geir Ivar Bredholt, Nicolai W. Christie, Anders Nåtas, Ralph W. Bernstein
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Publication number: 20150242672Abstract: An electronic sensor forms a grid to detect surface features of a proximally located object, such as a fingerprint. The grid includes a plurality of parallel drive lines connectable to a drive source and a plurality of parallel pickup lines oriented substantially perpendicular to the drive lines and overlapping the drive lines. The drive lines are separated from the pickup lines by an insulating dielectric layer. The overlaps where the drive lines and pickup lines cross define impedance-sensitive electrode pairs which act as pixels at which surface features of the proximally located object are detected. One or more conductive probes extend from one or more corresponding impedance-sensitive electrode pairs, through an overlay layer of insulating material, to the sensing surface.Type: ApplicationFiled: February 19, 2015Publication date: August 27, 2015Applicant: IDEX ASAInventors: FRED G. BENKLEY, III, RALPH W. BERNSTEIN, NICOLAI W. CHRISTIE, GEIR IVAR BREDHOLT, ØYVIND SLØGEDAL
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Publication number: 20150136860Abstract: The invention relates to a sensor for detection of properties and structures of an organic tissue and its surface, e.g.Type: ApplicationFiled: January 29, 2015Publication date: May 21, 2015Applicant: IDEX ASAInventors: Øyvind SLØGEDAL, Geir Ivar BREDHOLT, Nicolai W. CHRISTIE, Anders NATÅS, Ralph W. BERNSTEIN
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Publication number: 20150115981Abstract: A method and apparatus for electrical detection of a finger print has a reduced number of interconnect signals between a sensor area and a substrate and an electronic circuit for excitation and detection of the finger print compared to a single—chip finger print sensor. The individual signals are connected internally at the sensor substrate in such a way that the response from the individual sensor elements can be separated from each other. Cross-talk is reduced by keeping the sensor outputs at a constant potential, thus eliminating the effect of capacitive coupling between different sensor outputs and also between sensor outputs and a ground or reference potential.Type: ApplicationFiled: October 10, 2014Publication date: April 30, 2015Applicant: IDEX ASAInventors: NICOLAI W. CHRISTIE, GEIR IVAR BREDHOLT
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Publication number: 20140241595Abstract: A fingerprint sensor and fingerprint sensor system especially for integration in a device having an overlay made of an insulating material comprises a plurality of sensing elements positioned on a first side of the overlay; a plurality of probes positioned in a predetermined pattern defining a fingerprint sensing area on a second side of the overlay, the plurality of probes extending from the first side of the overlay at least partially through the overlay; a plurality of conductor leads on the first side of the overlay interconnecting the plurality of probes with the plurality of sensing elements; a plurality of amplifiers connected to the plurality of sensing elements, the number of amplifiers being less than the number of sensing elements; and an activation circuit connected to the plurality of sensing elements, the activation circuit being adapted to output at least one activation signal.Type: ApplicationFiled: February 19, 2014Publication date: August 28, 2014Applicant: IDEX ASAInventors: Ralph W. BERNSTEIN, Nicolai W. CHRISTIE, Geir Ivar BREDHOLT, Øyvind SLØGEDAL
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Publication number: 20130194071Abstract: The invention relates to a sensor for detection of properties and structures of an organic tissue and its surface, e.g.Type: ApplicationFiled: December 28, 2010Publication date: August 1, 2013Applicant: Idex ASAInventors: Øyvind Sløgedal, Geir Ivar Bredholt, Nicolai W. Christie, Anders Nåtas, Ralph W. Bernstein
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Patent number: 8487624Abstract: The invention relates to a sensor for measuring structures in a surface, e.g. a fingerprint sensor comprising a chosen number of sensor elements at chosen positions for coupling to a finger surface having a size less or comparable to the size of the structures in the finger surface, and a processing unit including interrogation electrodes coupled to said sensor elements for providing impedance measurements at said finger surface, the processing unit being mounted on one side of a substrate and the sensor elements being positioned on the opposite side of said substrate, the substrate including through going first conducting leads between said sensor elements and said interrogation electrodes. The substrate is made from a semiconductor material such as silicon and said first conducting leads are constituted by through going substrate sections of a chosen size surrounded by an insulating dielectric separating them from the substrate.Type: GrantFiled: September 1, 2009Date of Patent: July 16, 2013Assignee: IDEX ASAInventors: Geir Ivar Bredholt, Ralph W. Bernstein, Nicolai W. Christie, Anders Natas, Oyvind Slogedal
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Patent number: 8195285Abstract: A method and sensor assembly for determining the condition of a structure, especially for confirming if a measured fingerprint is on a live finger, measures characteristics of close to the structure surface. The sensor includes a first pair of current supply electrodes coupled to a current source, providing an electrical current to the skin, at least two pickup electrodes at chosen and different positions relative to the current supply electrodes, at least a first of the pickup electrodes being coupled to an instrument for measuring the voltage between the first pickup electrode and at least one of the pickup or current supply electrodes, storage for a predetermined set of values characterizing a certain condition of the surface, and means for comparing the characteristics from each pickup electrode with the measurements of the other pickup electrodes and with the predetermined set of characteristics for determining the surface condition.Type: GrantFiled: December 6, 2010Date of Patent: June 5, 2012Assignee: Idex ASAInventors: Orjan G. Martinsen, Jon Nysaether, Knut Riisnaes, Ingvild Juvkam Dyve, legal representative, Geir Mostad, Rune Pedersen, Nicolai W. Christie, Sigmund Clausen
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Publication number: 20110182488Abstract: The invention relates to a sensor for measuring structures in a surface, e.g. a fingerprint sensor comprising a chosen number of sensor elements at chosen positions for coupling to a finger surface having a size less or comparable to the size of the structures in the finger surface, and a processing unit including interrogation electrodes coupled to said sensor elements for providing impedance measurements at said finger surface, the processing unit being mounted on one side of a substrate and the sensor elements being positioned on the opposite side of said substrate, the substrate including through going first conducting leads between said sensor elements and said interrogation electrodes. The substrate is made from a semiconductor material such as silicon and said first conducting leads are constituted by through going substrate sections of a chosen size surrounded by an insulating dielectric separating them from the substrate.Type: ApplicationFiled: September 1, 2009Publication date: July 28, 2011Inventors: Geir Ivar Bredholt, Ralph W. Bernstein, Nicolai W. Christie, Anders Natas, Oyvind Slogedal
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Publication number: 20110074443Abstract: A method and sensor assembly for determining the condition of a structure, especially for confirming if a measured fingerprint is on a live finger, measures characteristics of close to the structure surface. The sensor includes a first pair of current supply electrodes coupled to a current source, providing an electrical current to the skin, at least two pickup electrodes at chosen and different positions relative to the current supply electrodes, at least a first of the pickup electrodes being coupled to an instrument for measuring the voltage between the first pickup electrode and at least one of the pickup or current supply electrodes, storage for a predetermined set of values characterizing a certain condition of the surface, and means for comparing the characteristics from each pickup electrode with the measurements of the other pickup electrodes and with the predetermined set of characteristics for determining the surface condition.Type: ApplicationFiled: December 6, 2010Publication date: March 31, 2011Applicant: IDEX ASAInventors: Ørjan G. MARTINSEN, Jon NYSÆTHER, Knut RIISNÆS, Ingvild Juvkam DYVE, Geir MOSTAD, Rune PEDERSEN, Nicolai W. CHRISTIE, Sigmund CLAUSEN
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Patent number: 7848798Abstract: Method and sensor assembly determining the condition of a structure, especially for confirming if a measured fingerprint is on a live finger, by measuring characteristics of close to the structure surface, the sensor comprising a first pair of current supply electrodes coupled to a current source, providing an electrical current to the skin, at least two pickup electrodes at chosen and different positions relative to the current supply electrodes, at least a first of said pickup electrodes being coupled to an instrument for measuring the voltage between said first pickup electrode and at least one of the pickup or current supply electrodes, storage means for a predetermined set of values characterizing a certain condition of the surface, and means for comparing the characteristics from each pickup electrode with the measurements of the other pickup electrodes and with the predetermined set of characteristics for determining the surface condition.Type: GrantFiled: December 3, 2003Date of Patent: December 7, 2010Assignee: Idex ASAInventors: Ørjan G. Martinsen, Jon Nysæther, Knut Riisnæs, Ingvild Juvkam Dyve, legal representative, Geir Mostad, Rune Pedersen, Nicolai W. Christie, Sigmund Clausen
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Patent number: 7606398Abstract: A sensor device for performing measurements on an at least partially conductive surface includes a number of conductive structures at or directly below the sensor surface. The conductive structures consist of at least one stimulation or current sink electrode and a number of sensor elements coupled to interrogation electrodes in an electronic circuit for measuring impedance between the electrodes and the stimulation electrode. The sensor device also includes at least one additional clamping electrode positioned in the vicinity of the sensor elements and coupled to a chosen voltage.Type: GrantFiled: December 6, 2002Date of Patent: October 20, 2009Assignee: IDEX ASAInventors: Jon Nysæther, Knut Riisnæs, Ingvild Juvkam Dyve, legal representative, Ørjan G. Martinsen, Geir Mostad, Nicolai W. Christie, Rune Pedersen
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Patent number: 6111725Abstract: A pivotable door for a tape cartridge minimizes door opening space to be allocated within a tape drive and maximizes useable space within a tape cartridge closed by the door. The door may be an articulated two panel door having a top panel to be slid backward on a top cover of a cartridge with a lower panel which can be pivoted and drawn upwardly through arcuate channel guides to open a front and a top of the cartridge. A bottom panel can be slid into a retracted position on a bottom cover of the cartridge to expose a bottom opening of the cartridge. Alternatively, a one-piece pivotable door may be provided which is slid and pivoted along an axle on the top of the one-piece door on a top cover of the cartridge and guided by an arcuate edge guiding surface within the cartridge.Type: GrantFiled: October 31, 1997Date of Patent: August 29, 2000Assignee: Tandberg Data ASAInventor: Nicolai W. Christie