Patents by Inventor Viet Hoang Nguyen
Viet Hoang Nguyen 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: 20190165923Abstract: A new method to transmit data of IP applications over half-duplex channel. More precisely, this method makes it possible to run IP applications (such as e-mail, web . . . ) based on low speed, half-duplex channel (VHF, HF . . . ).Type: ApplicationFiled: November 22, 2018Publication date: May 30, 2019Applicant: VIETTEL GROUPInventors: Hoang Anh Nguyen, Viet Hoang Nguyen, Thai Binh Nguyen
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Patent number: 9891183Abstract: One example discloses a breach sensor, comprising: a substrate including an integrated circuit; a passivation layer coupled to the substrate; a breach sensing element coupled to the circuit; wherein the breach sensing element is on a first side of the passivation layer and the substrate is on a second side of the passivation layer; a barrier configured to separate the breach sensing element from an ambient environment; wherein the breach sensing element is responsive to barrier damage.Type: GrantFiled: July 7, 2015Date of Patent: February 13, 2018Assignee: NXP B.V.Inventors: Roel Daamen, Viet Hoang Nguyen, Nebojsa Nenadovic, Pascal Bancken
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Patent number: 9739774Abstract: One example discloses a substance detection device, including: a substrate configured to carry a substance; wherein the substrate has a length and a substance loss along the length of the substrate; a test region coupled to the substrate and configured to bond to at least a portion of the substance; a sensor coupled to the substrate at a fixed location along the length and having a sensing signal output; an integration circuit coupled to the sensor and configured to integrate, over a time interval, a signal from the sensing signal output; and a detection circuit coupled to the integration circuit and configured to output a substance detected signal if the integrated sensing signal output signal deviates from the substance loss corresponding to the fixed sensor location.Type: GrantFiled: September 3, 2015Date of Patent: August 22, 2017Assignee: NXP B.V.Inventors: Axel Nackaerts, Viet Hoang Nguyen
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Patent number: 9606115Abstract: There is provided a lateral flow immunoassay test device. The test device comprises a test strip. The test strip comprises a test membrane having a translucent section including a control zone and a test zone. The device is adapted to house the test strip such that at least the translucent section is exposable to ambient light. The device comprises a backing structure for backing the test strip which comprises a first optical detector for detecting ambient light which has passed through the test zone, and a second optical detector for detecting ambient light which has passed through the translucent section in a further zone outside of the test and control zones. Using the detector outputs an amount of analyte in a test liquid may be calculated.Type: GrantFiled: February 6, 2015Date of Patent: March 28, 2017Assignee: NXP B.V.Inventors: Viet Hoang Nguyen, Filip Frederix, Axel Nackaerts, Youri Victorovitch Ponomarev
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Publication number: 20170067891Abstract: One example discloses a substance detection device, including: a substrate configured to carry a substance; wherein the substrate has a length and a substance loss along the length of the substrate; a test region coupled to the substrate and configured to bond to at least a portion of the substance; a sensor coupled to the substrate at a fixed location along the length and having a sensing signal output; an integration circuit coupled to the sensor and configured to integrate, over a time interval, a signal from the sensing signal output; and a detection circuit coupled to the integration circuit and configured to output a substance detected signal if the integrated sensing signal output signal deviates from the substance loss corresponding to the fixed sensor location.Type: ApplicationFiled: September 3, 2015Publication date: March 9, 2017Inventors: Axel Nackaerts, Viet Hoang Nguyen
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Publication number: 20170010232Abstract: One example discloses a breach sensor, comprising: a substrate including an integrated circuit; a passivation layer coupled to the substrate; a breach sensing element coupled to the circuit; wherein the breach sensing element is on a first side of the passivation layer and the substrate is on a second side of the passivation layer; a barrier configured to separate the breach sensing element from an ambient environment; wherein the breach sensing element is responsive to barrier damage.Type: ApplicationFiled: July 7, 2015Publication date: January 12, 2017Inventors: Roel Daamen, Viet Hoang Nguyen, Nebojsa Nenadovic, Pascal Bancken
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Publication number: 20160163766Abstract: An integrated circuit and a method of making the same. The integrated circuit includes a semiconductor substrate having a major surface. The integrated circuit also includes a thermal conductivity based gas sensor having an electrically resistive sensor element located on the major surface for exposure to a gas to be sensed. The integrated circuit further includes a barrier located on the major surface for inhibiting a flow of the gas across the sensor element.Type: ApplicationFiled: February 11, 2016Publication date: June 9, 2016Inventors: Aurelie HUMBERT, Roel DAAMEN, Viet Hoang NGUYEN
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Patent number: 9271370Abstract: A method of characterizing an LED, as well as an integrated circuit using this method, based on a so-called characteristic resistance, in which the LED is operated at a first, relatively low, operating current and then at a second, relatively high, operating current. From the ratio between the difference between the forward voltages at these two operating currents, and the difference between the operating current, the characteristic resistance is determined. The characteristic resistance is measured at two or more moments during the operational lifetime of the device, and a prediction or estimate is made in relation to the total operational lifetime of the devices, from the evolution or change of the characteristic resistance.Type: GrantFiled: May 7, 2012Date of Patent: February 23, 2016Assignee: NXP B.V.Inventors: Viet Hoang Nguyen, Pascal Bancken
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Patent number: 9263500Abstract: An integrated circuit and a method of making the same. The integrated circuit includes a semiconductor substrate having a major surface. The integrated circuit also includes a thermal conductivity based gas sensor having an electrically resistive sensor element located on the major surface for exposure to a gas to be sensed. The integrated circuit further includes a barrier located on the major surface for inhibiting a flow of the gas across the sensor element.Type: GrantFiled: March 28, 2013Date of Patent: February 16, 2016Assignee: ams International AGInventors: Aurelie Humbert, Roel Daamen, Viet Hoang Nguyen
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Patent number: 9210761Abstract: A lighting system uses interior and exterior light sensors for detecting lighting level and color. A lighting unit has a controlled color and intensity so that a color match zone can be defined where the interior space lighting has color temperature based on the exterior lighting conditions.Type: GrantFiled: August 30, 2012Date of Patent: December 8, 2015Assignee: NXP, B.V.Inventors: Axel Nackaerts, Viet Hoang Nguyen
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Patent number: 9171810Abstract: An electronic device incorporating a randomized interconnection layer. In one example, the device includes a randomized interconnection layer having a randomized conductive pattern formed by etching of a heterogeneous layer; and a sensing circuit, electrically coupled to the randomized interconnection layer to detect the randomized conductive pattern. In another example, a method of fabricating the device includes forming a set of electrodes proximate to a silicon substrate; depositing a heterogeneous layer of elements onto the substrate; etching the heterogeneous layer to form a randomized conductive pattern; and electrically coupling the electrodes to a sensing circuit and the randomized conductive pattern.Type: GrantFiled: November 21, 2013Date of Patent: October 27, 2015Assignee: NXP B.V.Inventors: Michael Antoine Armand in't Zandt, Viet Hoang Nguyen
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Patent number: 9161414Abstract: Disclosed herein is a method of detecting an LED failure in a series-connected string of LEDs using a parameter indicative of a voltage difference between a voltage across the string at a predetermined relatively high current and a voltage across the string at a predetermined relatively low current. The disclosure extends to controllers configured to detect an LED failure in a string of LEDs, to LED lighting units comprising such controllers, and to lighting subsystems, for instance automobile lighting subsystems.Type: GrantFiled: September 13, 2013Date of Patent: October 13, 2015Assignee: NXP, B.V.Inventors: Pascal Brancken, Viet Hoang Nguyen, Radu Surdeanu
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Publication number: 20150226736Abstract: There is provided a lateral flow immunoassay test device. The test device comprises a test strip. The test strip comprises a test membrane having a translucent section including a control zone and a test zone. The device is adapted to house the test strip such that at least the translucent section is exposable to ambient light. The device comprises a backing structure for backing the test strip which comprises a first optical detector for detecting ambient light which has passed through the test zone, and a second optical detector for detecting ambient light which has passed through the translucent section in a further zone outside of the test and control zones. Using the detector outputs an amount of analyte in a test liquid may be calculated.Type: ApplicationFiled: February 6, 2015Publication date: August 13, 2015Inventors: Viet Hoang Nguyen, Filip Frederix, Axel Nackaerts, Youri Victorovitch Ponomarev
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Publication number: 20150137380Abstract: An electronic device incorporating a randomized interconnection layer. In one example, the device includes a randomized interconnection layer having a randomized conductive pattern formed by etching of a heterogeneous layer; and a sensing circuit, electrically coupled to the randomized interconnection layer to detect the randomized conductive pattern. In another example, a method of fabricating the device includes forming a set of electrodes proximate to a silicon substrate; depositing a heterogeneous layer of elements onto the substrate; etching the heterogeneous layer to form a randomized conductive pattern; and electrically coupling the electrodes to a sensing circuit and the randomized conductive pattern.Type: ApplicationFiled: November 21, 2013Publication date: May 21, 2015Applicant: NXP B.V.Inventors: Michael Antoine Armand in 't Zandt, Viet Hoang Nguyen
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Patent number: 8994194Abstract: A method of manufacturing a biosensor semiconductor device in which copper electrodes at a major surface of the device are modified to form Au—Cu alloy electrodes. Such modification is effected by depositing a gold layer over the device, and then thermally treating the device to promote interdiffusion between the gold and the electrode copper. Alloyed gold-copper is removed from the surface of the device, leaving the exposed electrodes. The electrodes are better compatible with further processing into a biosensor device than is the case with conventional copper electrodes, and the process windows are wider than for gold capped copper electrodes. A biosensor semiconductor device having Au—Cu alloy electrodes is also disclosed.Type: GrantFiled: February 4, 2014Date of Patent: March 31, 2015Assignee: NXP, B.V.Inventors: David van Steenwinckel, Thomas Merelle, Franciscus Petrus Widdershoven, Viet Hoang Nguyen, Dimitri Soccol, Jan Leo Dominique Fransaer
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Patent number: 8779781Abstract: A sensor for sensing an analyte includes capacitive elements, each having a pair of electrodes separated by a dielectric wherein the dielectric constant of the dielectric of at least one of the capacitive elements is sensitive to the analyte, the sensor further including a comparator adapted to compare a selected set of capacitive elements against a reference signal and to generate a comparison result signal, and a controller for iteratively selecting the set in response to the comparison result signal, wherein the sensor is arranged to produce a digitized output signal indicative of the sensed level of the analyte of interest. An IC comprising such a sensor, an electronic device comprising such an IC and a method of determining a level of an analyte of interest using such a sensor are also disclosed.Type: GrantFiled: April 3, 2012Date of Patent: July 15, 2014Assignee: NXP, B.V.Inventors: Viet Hoang Nguyen, Roel Daamen, Axel Nackaerts, Pascal Bancken
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Publication number: 20140159173Abstract: A method of manufacturing a biosensor semiconductor device in which copper electrodes at a major surface of the device are modified to form Au—Cu alloy electrodes. Such modification is effected by depositing a gold layer over the device, and then thermally treating the device to promote interdiffusion between the gold and the electrode copper. Alloyed gold-copper is removed from the surface of the device, leaving the exposed electrodes. The electrodes are better compatible with further processing into a biosensor device than is the case with conventional copper electrodes, and the process windows are wider than for gold capped copper electrodes. A biosensor semiconductor device having Au—Cu alloy electrodes is also disclosed.Type: ApplicationFiled: February 4, 2014Publication date: June 12, 2014Applicant: NXP B.V.Inventors: David van Steenwinckel, Thomas Merelle, Franciscus Petrus Widdershoven, Viet Hoang Nguyen, Dimitri Soccoi, Jan Leo Dominique Fransaer
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Patent number: 8749142Abstract: A lighting system for exterior lights of an automobile comprises a first lighting unit (10,12,14,16) primarily for outputting a first automotive light signal and a failure detection system (26) for detecting a failure of the first lighting unit (10,12,14,16). A second lighting unit is primarily for outputting a second automotive light signal. The second lighting unit comprises an LED light unit. A controller (30) is adapted to determine if there is failure of the first lighting unit, and if there is failure of the first lighting unit, to use the second lighting unit to generate the first automotive light signal. This is in response to an output request from the first lighting unit (10,12,14,16).Type: GrantFiled: June 9, 2010Date of Patent: June 10, 2014Assignee: NXP B.V.Inventors: Viet Hoang Nguyen, Pascal Bancken, Radu Surdeanu
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Publication number: 20140151221Abstract: A method of manufacturing a module for a biosensor is disclosed. The method includes providing a substrate. The substrate includes a trench and a bond pad. The trench is filled with an electrically conductive material and the bond pad is arranged within the substrate. The method also includes removing a part of the electrically conductive material from the trench such that a recess is formed in a surface of the substrate, forming a biocompatible electrode in the recess, and removing a part of the substrate such that the bond pad is accessible through the surface of the substrate.Type: ApplicationFiled: October 31, 2013Publication date: June 5, 2014Applicant: NXP B.V.Inventors: Roel Daamen, Viet Hoang Nguyen
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Publication number: 20140097849Abstract: Disclosed herein is a method of detecting an LED failure in a series-connected string of LEDs using a parameter indicative of a voltage difference between a voltage across the string at a predetermined relatively high current and a voltage across the string at a predetermined relatively low current. The disclosure extends to controllers configured to detect an LED failure in a string of LEDs, to LED lighting units comprising such controllers, and to lighting subsystems, for instance automobile lighting subsystems.Type: ApplicationFiled: September 13, 2013Publication date: April 10, 2014Applicant: NXP B. V.Inventors: Pascal Brancken, Viet Hoang Nguyen, Radu Surdeanu