Patents by Inventor Alexandre Schmid
Alexandre Schmid 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: 10362225Abstract: An omnidirectional sensor array system, for example a panoptic camera, comprising a plurality of sensors arranged on a support of predetermined shape to acquire data, wherein said sensors are directional and wherein each sensor is attached to a processing node which comprises integrated electronics that carries out at least a portion of the signal processing algorithms locally in order to reduce the computational load of a central hardware unit.Type: GrantFiled: January 23, 2018Date of Patent: July 23, 2019Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Luigi Bagnato, Laurent Jacques, Pierre Vandergheynst, Hossein Afshari, Alexandre Schmid, Yusuf Leblebici
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Publication number: 20180220070Abstract: An omnidirectional sensor array system, for example a panoptic camera, comprising a plurality of sensors arranged on a support of predetermined shape to acquire data, wherein said sensors are directional and wherein each sensor is attached to a processing node which comprises integrated electronics that carries out at least a portion of the signal processing algorithms locally in order to reduce the computational load of a central hardware unit.Type: ApplicationFiled: January 23, 2018Publication date: August 2, 2018Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Luigi BAGNATO, Laurent JACQUES, Pierre VANDERGHEYNST, Hossein AFSHARI, Alexandre SCHMID, Yusuf LEBLEBICI
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Patent number: 9876953Abstract: An omnidirectional sensor array system, for example a panoptic camera, comprising a plurality of sensors arranged on a support of predetermined shape to acquire data, wherein said sensors are directional and wherein each sensor is attached to a processing node which comprises integrated electronics that carries out at least a portion of the signal processing algorithms locally in order to reduce the computational load of a central hardware unit.Type: GrantFiled: October 31, 2011Date of Patent: January 23, 2018Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Luigi Bagnato, Laurent Jacques, Pierre Vandergheynst, Hossein Afshari, Alexandre Schmid, Yusuf Leblebici
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Patent number: 9800094Abstract: Disclosed are low power electronic devices configured to exploit the sub-threshold swing, unidirectional tunneling, and low-voltage operation of steep slope-tunnel tunnel field-effect transistors (TFET) to improve power-conversion efficiency and power-efficiency of electrical systems incorporating the TFET as an electrical component to perform energy harvesting, signal processing, and related operations. The devices include a HTFET-based rectifier having various topologies, a HTFET-based DC-DC charge pump converter, a HTFET-based amplifier having an amplifier circuit including a telescopic operational transconductance amplifier, and a HTFET-based SAR A/D converter having a HTFET-based transmission gate DFF. Any one of the devices may be used to generate a RF-powered system with improved power conversion efficiencies of power harvesters and power efficiencies of processing components within the system.Type: GrantFiled: May 14, 2015Date of Patent: October 24, 2017Assignee: The Penn State Research FoundationInventors: Huichu Liu, Ramesh Vaddi, Vijaykrishnan Narayanan, Suman Datta, Moon Seok Kim, Xueqing Li, Alexandre Schmid, Mahsa Shoaran, Unsuk Heo
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Patent number: 9756312Abstract: A real-time stereo camera disparity estimation device comprises input means arranged to input measured data corresponding to rows of left and right images; a plurality of on-chip memories arranged to buffer the input measured data; a vertical rotator hardware module configured to align the rows of left and right images in a same column; a reconfigurable data allocation hardware module; a reconfigurable computation of metrics hardware module; and an adaptive disparity selection hardware module configured to select disparity values with the minimum matching costs.Type: GrantFiled: May 1, 2014Date of Patent: September 5, 2017Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)Inventors: Abdulkadir Akin, Yusuf Leblebici, Alexandre Schmid, Ipek Baz, Irem Boybat, Huseyin Baris Atakan
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Publication number: 20160278713Abstract: The present invention relates to a method for compressing signal data of a plurality of biological signals captured by a plurality of implanted measurement devices. The present invention further relates to an implantable sensor configured to carry out said method of compression. The present invention also concerns a method for recovering the plurality of biological signals from the compressed data as well as a system including a plurality of implantable sensors, a transmitter, a receiver and a processor configured to recover the plurality of biological signals from the compressed data.Type: ApplicationFiled: March 25, 2015Publication date: September 29, 2016Inventors: Mahsa SHOARAN, Mahdad HOSSEINI KAMAL, Alexandre SCHMID
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Patent number: 9203422Abstract: An event-driven tracking analog to digital converter (ADC) architecture is proposed. The proposed architecture has less sensitivity to amplifier and DAC non-linearity, reduces the swing and dynamic common-mode range requirement of the operational transconductance amplifier (OTA) and comparators, respectively.Type: GrantFiled: September 28, 2012Date of Patent: December 1, 2015Assignee: ECOLE POLYTECHIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Vahid Majidzadeh Bafar, Alexandre Schmid, Yusuf Leblebici
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Publication number: 20150333534Abstract: Disclosed are low power electronic devices configured to exploit the sub-threshold swing, unidirectional tunneling, and low-voltage operation of steep slope-tunnel tunnel field-effect transistors (TFET) to improve power-conversion efficiency and power-efficiency of electrical systems incorporating the TFET as an electrical component to perform energy harvesting, signal processing, and related operations. The devices include a HTFET-based rectifier having various topologies, a HTFET-based DC-DC charge pump converter, a HTFET-based amplifier having an amplifier circuit including a telescopic operational transconductance amplifier, and a HTFET-based SAR A/D converter having a HTFET-based transmission gate DFF. Any one of the devices may be used to generate a RF-powered system with improved power conversion efficiencies of power harvesters and power efficiencies of processing components within the system.Type: ApplicationFiled: May 14, 2015Publication date: November 19, 2015Inventors: Huichu Liu, Ramesh Vaddi, Vijaykrishnan Narayanan, Suman Datta, Moon Seok Kim, Xueqing Li, Alexandre Schmid, Mahsa Shoaran, Unsuk Heo
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Publication number: 20150319419Abstract: A real-time stereo camera disparity estimation device comprises input means arranged to input measured data corresponding to rows of left and right images; a plurality of on-chip memories arranged to buffer the input measured data; a vertical rotator hardware module configured to align the rows of left and right images in a same column; a reconfigurable data allocation hardware module; a reconfigurable computation of metrics hardware module; and an adaptive disparity selection hardware module configured to select disparity values with the minimum matching costs.Type: ApplicationFiled: May 1, 2014Publication date: November 5, 2015Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Abdulkadir AKIN, Yusuf LEBLEBICI, Alexandre SCHMID, Ipek BAZ, Irem BOYBAT, Huseyin Baris ATAKAN
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Publication number: 20140146132Abstract: An omnidirectional sensor array system, for example a panoptic camera, comprising a plurality of sensors arranged on a support of predetermined shape to acquire data, wherein said sensors are directional and wherein each sensor is attached to a processing node which comprises integrated electronics that carries out at least a portion of the signal processing algorithms locally in order to reduce the computational load of a central hardware unit.Type: ApplicationFiled: October 31, 2011Publication date: May 29, 2014Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Luigi Bagnato, Laurent Jacques, Pierre Vandergheynst, Hossein Afshari, Alexandre Schmid, Yusuf Leblebici
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Publication number: 20130083951Abstract: An event-driven tracking analog to digital converter (ADC) architecture is proposed. The proposed architecture has less sensitivity to amplifier and DAC non-linearity, reduces the swing and dynamic common-mode range requirement of the operational transconductance amplifier (OTA) and comparators, respectively.Type: ApplicationFiled: September 28, 2012Publication date: April 4, 2013Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Vahid MAJIDZADEH BAFAR, Alexandre SCHMID, Yusuf LEBLEBICI
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Publication number: 20080034768Abstract: A refrigeration control system in combined refrigeration appliances of the type comprising: a refrigerating compartment; a freezing compartment; a compressor; an evaporator; a refrigerating compartment fan and a freezing compartment fan; and a control means to activate and deactivate the compressor and both the refrigerating compartment fan and the freezing compartment fan as a function of the activation and deactivation temperatures detected by the refrigerating compartment temperature sensor and the freezing compartment temperature sensor. The control means is operatively associated with the refrigerating compartment fan to selectively and periodically adjust the speed of the latter, so that the temperature of the refrigerating compartment reaches a deactivation value of the refrigerating compartment fan at the same time in which the temperature of the freezing compartment reaches a deactivation value of both the freezing compartment fan and the compressor.Type: ApplicationFiled: April 29, 2005Publication date: February 14, 2008Applicant: WHIRLPOOL S.A.Inventors: Fabio Pimentel, Moacyr Mezavila, Alexandre Schmid, Rogerio Rodrigues, Alexandre Rebello Rucker, Marco Marques
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Publication number: 20050229624Abstract: An air distribution system for combined refrigerators of the type that comprises: a freezing compartment (10) and a refrigerating compartment (20); an air-cooling compartment (40) lodging at least one evaporator (45); a distributing duct (60) having a rear window (62) opened to the air-cooling compartment (40), at least one front opening (65) communicating with the freezing compartment (10) and one end opening (64) maintained in communication with the refrigerating compartment (20); and at least one fan (46, 47) producing a forced airflow from the air-cooling compartment (40) to the freezing compartment (10) and to the refrigerating compartment (20), said distributing duct (60) carrying a conduct (63), having a first end coupled to the end opening (64) of the distributing duct (60), and a second end selectively placed in fluid communication with one of the parts defined by the distributing duct (60) and by the air-cooling compartment (40).Type: ApplicationFiled: July 1, 2003Publication date: October 20, 2005Applicant: Multibras S.A. EletrodomesticosInventors: Alexandre Schmid, Adriano Cargnin, Marco Marques, Rogerio Junior
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Publication number: 20050173997Abstract: A mounting arrangement for a refrigerator fan, comprising an electric motor (11) to whose shaft is affixed a propeller (12) with an axial flow passing through a refrigerated air outlet (4b) provided through an internal divisional wall (6) of the refrigerator; a support frame (20) having a marginal portion (21) and incorporating a central hub (22) in which is affixed the electric motor (11); a flexible support (30) in the form of an annular flange presenting an outer portion (31), which is peripherally and removably affixed to the contour of the refrigerated air outlet (4b), an inner portion (32) provided with a central opening (35) and with retaining means (36), which are removably locked to the marginal portion (21) of the support frame (20); and an annular membrane portion (33) interconnecting the outer portion (31) and the inner portion (32), in order to allow for small relative axial and radial displacements therebetween.Type: ApplicationFiled: April 16, 2003Publication date: August 11, 2005Inventors: Alexandre Schmid, Adriano Cargnin, Alexsandro Pereira, Rogerio Rodrigues Junior
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Publication number: 20050126205Abstract: An air duct arrangement for a refrigerator with forced air circulation of the type that comprises a refrigerating compartment (20) provided with a diffusing duct (23) receiving a refrigerated forced airflow from an air cooling compartment (40). The arrangement comprises at least one distributing duct (60) disposed in the upper portion of a space (V) defined below at least one of the shelves (22). The distributing duct (60) presents a rear end (61) opened to the inside of the diffusing duct (23) and a front end (62) opened to the front region of said space (V) adjacent to the front door (21) of the refrigerating compartment (20) and provided with a plurality of front openings (64, 65, 66) turned to the front region of said space.Type: ApplicationFiled: February 18, 2003Publication date: June 16, 2005Applicant: Multibras S.A. EletrodomesticosInventors: Alexandre Schmid, Claiton Amaral, Ignacio Santos Junior, Adriano Cargnin, Rogerio Rodrigues Junior, Edson Izui, Marco Marques
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Publication number: 20050056045Abstract: An air duct system for a combined refrigerator of the forced air circulation type and comprising a freezing compartment (1) and a refrigerating compartment (2), which are superposed and separated by an intermediate wall (3), and further having an air cooling compartment (4) lodging an evaporator (5) and a fan (6) and presenting at least one circulated air inlet (4a) and at least one refrigerated air outlet (4b). The system comprises a body (10) mounted to the inside of the intermediate wall (3) and defining a rear chamber (11), which is opened to the circulated air inlet (4a); a transversal through-duct (12) communicating the refrigerated air outlet (4b) with the refrigerating compartment (2); at least one first and one second return duct (13, 14) presenting a rear end (13b, 14b) opened to the rear chamber (11), and a front end (13a, 14a) opened to the inside of the freezing compartment (1) and of the refrigerating compartment (2), respectively.Type: ApplicationFiled: January 28, 2003Publication date: March 17, 2005Applicant: Multibras S.A. EletrodomesticosInventors: Alexandre Schmid, Rogerio Junior, Adriano Cargnin
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Publication number: 20050016203Abstract: A condenser for refrigeration systems containing a refrigerant gas and applied to refrigeration appliances of the type comprising an internally refrigerated cabinet (G) presenting external walls (20) which are at least partially defined in a metallic and comprise at least one condensation coil (S) formed by a plurality of tube extensions (10) for conducting refrigerant gas and which are generally rectilinear and mutually coplanar, each of said tube extensions (10) being seated and retained inside a respective groove (21), which is formed by bending the metallic plate of a respective external wall (20) of the cabinet (G).Type: ApplicationFiled: November 5, 2002Publication date: January 27, 2005Inventors: Estevao Espindola, Jean Ferreira, Ademar Testoni, Alexandre Schmid, Sthefan Almeida, Tadeu Bonassa
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Publication number: 20050000238Abstract: An evaporator for refrigeration systems, comprising a set of tubes (20) arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid and which are incorporated to and trespass a plurality of fins (10) arranged in multiple rows extending transversally to the direction of a forced airflow (F). The fins (10), which are incorporated to the first and second tubes (20) are spaced from each other by a larger distance (d), when they are operatively associated with a refrigerating environment, and by a smaller distance (d), when they are operatively associated with a freezing environment. Said distances (d) decrease at each two subsequent tubes (20), until reaching at least the third tube (20), said distance being then maintained at a minimum value for the other subsequent tubes (20).Type: ApplicationFiled: December 3, 2002Publication date: January 6, 2005Inventors: Alexandre Schmid, Jose Alberto Salles