Patents by Inventor Fouad Kiamilev
Fouad Kiamilev 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).
-
Patent number: 12062303Abstract: A circuit for driving a light emitting diode (LED) comprises a plurality of current supply level circuits wherein each current supply level circuit is configured to control a different amount of electric current flowing through the LED. Each current supply level circuit includes a circuit enable transistor, a drive current transistor, and a gain control transistor. The circuit enable transistor is configured to enable current flow through the current supply level circuit. The drive current transistor is configured to control an amount of electric current flowing through the current supply level circuit. The gain control transistor is configured to control a range of the amount of electric current flowing through the current supply level circuit.Type: GrantFiled: May 31, 2022Date of Patent: August 13, 2024Assignee: CHIP DESIGN SYSTEMS INC.Inventor: Fouad Kiamilev
-
Publication number: 20230386372Abstract: A circuit for driving a light emitting diode (LED) comprises a plurality of current supply level circuits wherein each current supply level circuit is configured to control a different amount of electric current flowing through the LED. Each current supply level circuit includes a circuit enable transistor, a drive current transistor, and a gain control transistor. The circuit enable transistor is configured to enable current flow through the current supply level circuit. The drive current transistor is configured to control an amount of electric current flowing through the current supply level circuit. The gain control transistor is configured to control a range of the amount of electric current flowing through the current supply level circuit.Type: ApplicationFiled: May 31, 2022Publication date: November 30, 2023Applicant: CHIP DESIGN SYSTEMS INC.Inventor: Fouad Kiamilev
-
Patent number: 10511816Abstract: The present invention relates to a calibration system and method including a pixelated display including pixels for projecting an image, an imager positioned to capture the image produced by the pixelated display, and a processor. The processor is configured to determine and measure non-uniformity in the image produced by the pixelated display by repeatedly selecting and illuminating a subset of the pixels in the pixelated display with respective driving currents, controlling the imager to capture the image projected by the subset pixels, determining and storing, for each pixel in the subset, an intensity value produced in response to the respective driving current, and updating, for each pixel in the subset, the respective driving currents based on the determined intensity value and previously stored intensity values corresponding with previously stored driving currents.Type: GrantFiled: March 1, 2017Date of Patent: December 17, 2019Assignee: UNIVERSITY OF DELAWAREInventors: Fouad Kiamilev, Andrea Waite
-
Publication number: 20170257607Abstract: The present invention relates to a calibration system and method including a pixelated display including pixels for projecting an image, an imager positioned to capture the image produced by the pixelated display, and a processor. The processor is configured to determine and measure non-uniformity in the image produced by the pixelated display by repeatedly selecting and illuminating a subset of the pixels in the pixelated display with respective driving currents, controlling the imager to capture the image projected by the subset pixels, determining and storing, for each pixel in the subset, an intensity value produced in response to the respective driving current, and updating, for each pixel in the subset, the respective driving currents based on the determined intensity value and previously stored intensity values corresponding with previously stored driving currents.Type: ApplicationFiled: March 1, 2017Publication date: September 7, 2017Applicant: UNIVERSITY OF DELAWAREInventors: Fouad Kiamilev, Andrea Waite
-
Patent number: 9754300Abstract: Methods, systems, and apparatus transferring power between the grid and an electric vehicle are disclosed. The apparatus may include at least one vehicle communication port for interfacing with electric vehicle equipment (EVE) and a processor coupled to the at least one vehicle communication port to establish communication with the EVE, receive EVE attributes from the EVE, and transmit electric vehicle station equipment (EVSE) attributes to the EVE. Power may be transferred between the grid and the electric vehicle by maintaining EVSE attributes, establishing communication with the EVE, and transmitting the EVSE maintained attributes to the EVE.Type: GrantFiled: September 21, 2010Date of Patent: September 5, 2017Assignee: University of DelawareInventors: Willett Kempton, Fouad Kiamilev, Rodney McGee, Nick Waite
-
Patent number: 9078333Abstract: Drive circuit (100, 200, 300, 400) for LED thermal emitters in pixel elements of an infrared scene projector (IRSP). At least two current sources (Q1, Q2, Q5) provide output currents (I1, I2, I3) which may be summed and provided to a single LED (150), or provided independently to two or more LEDs (450A, 450B). The current sources may have different gains (G1, G2, G3), and different turn-on voltages (Voffset). This allows for different resolutions for different ranges of apparent temperatures, such as high resolution in a low range and low resolution in a high range, thereby facilitating a digital implementation of the drive circuit(s).Type: GrantFiled: June 7, 2014Date of Patent: July 7, 2015Inventors: Joseph D LaVeigne, Fouad Kiamilev, Rodney McGee, Nicholas Waite
-
Publication number: 20140367593Abstract: Drive circuit (100, 200, 300, 400) for LED thermal emitters in pixel elements of an infrared scene projector (IRSP). At least two current sources (Q1, Q2, Q5) provide output currents (I1, I2, I3) which may be summed and provided to a single LED (150), or provided independently to two or more LEDs (450A, 450B). The current sources may have different gains (G1, G2, G3), and different turn-on voltages (Voffset). This allows for different resolutions for different ranges of apparent temperatures, such as high resolution in a low range and low resolution in a high range, thereby facilitating a digital implementation of the drive circuit(s).Type: ApplicationFiled: June 7, 2014Publication date: December 18, 2014Inventors: Joseph D. LaVeigne, Fouad Kiamilev, Rodney McGee, Nicholas Waite
-
Patent number: 8093873Abstract: This invention relates to a method for Maximum Power Point Tracking (MPPT) a photovoltaic cell by a power converter that provides an output current at voltages useful to operate electronics or charge batteries. This invention also relates to a method for Maximum Power Point Tracking (MPPT) multiple photovoltaic cells by a power combiner that combines the output of the multiple photovoltaic cells into a single output. The power combiner is comprised of multiple power converters, one for each photovoltaic cell. Each power converter used in these methods has an input-regulating element that has an output wave form with a characteristic that is related to the photovoltaic cell voltage and current. As a result only the photovoltaic cell voltage is directly measured in these methods and the photovoltaic cell current is determined indirectly.Type: GrantFiled: December 3, 2010Date of Patent: January 10, 2012Assignee: University of DelawareInventors: Fouad Kiamilev, Nicholas Andrew Waite
-
Patent number: 8093872Abstract: This invention relates to a method for Maximum Power Point Tracking (MPPT) a photovoltaic cell by a power converter that provides an output current at voltages useful to operate electronics or charge batteries. This invention also relates to a method for Maximum Power Point Tracking (MPPT) multiple photovoltaic cells by a power combiner that combines the output of the multiple photovoltaic cells into a single output. The power combiner is comprised of multiple power converters, one for each photovoltaic cell. Each power converter used in these methods has an input-regulating element that has an output wave form with a characteristic that is related to the photovoltaic cell voltage and current. As a result only the photovoltaic cell voltage is directly measured in these methods and the photovoltaic cell current is determined indirectly.Type: GrantFiled: July 2, 2009Date of Patent: January 10, 2012Assignee: University of DelawareInventors: Fouad Kiamilev, Nicholas Andrew Waite
-
Publication number: 20110202418Abstract: Methods, systems, and apparatus transferring power between the grid and an electric vehicle are disclosed. The apparatus may include at least one vehicle communication port for interfacing with electric vehicle equipment (EVE) and a processor coupled to the at least one vehicle communication port to establish communication with the EVE, receive EVE attributes from the EVE, and transmit electric vehicle station equipment (EVSE) attributes to the EVE. Power may be transferred between the grid and the electric vehicle by maintaining EVSE attributes, establishing communication with the EVE, and transmitting the EVSE maintained attributes to the EVE.Type: ApplicationFiled: September 21, 2010Publication date: August 18, 2011Applicant: University of DelawareInventors: Willett Kempton, Fouad Kiamilev, Rodney McGee, Nick Waite
-
Publication number: 20110068637Abstract: This invention relates to a method for Maximum Power Point Tracking (MPPT) a photovoltaic cell by a power converter that provides an output current at voltages useful to operate electronics or charge batteries. This invention also relates to a method for Maximum Power Point Tracking (MPPT) multiple photovoltaic cells by a power combiner that combines the output of the multiple photovoltaic cells into a single output. The power combiner is comprised of multiple power converters, one for each photovoltaic cell. Each power converter used in these methods has an input-regulating element that has an output wave form with a characteristic that is related to the photovoltaic cell voltage and current. As a result only the photovoltaic cell voltage is directly measured in these methods and the photovoltaic cell current is determined indirectly.Type: ApplicationFiled: December 3, 2010Publication date: March 24, 2011Inventors: Fouad Kiamilev, Nicholas Andrew Waite
-
Publication number: 20100002470Abstract: This invention relates to a method for Maximum Power Point Tracking (MPPT) a photovoltaic cell by a power converter that provides an output current at voltages useful to operate electronics or charge batteries. This invention also relates to a method for Maximum Power Point Tracking (MPPT) multiple photovoltaic cells by a power combiner that combines the output of the multiple photovoltaic cells into a single output. The power combiner is comprised of multiple power converters, one for each photovoltaic cell. Each power converter used in these methods has an input-regulating element that has an output wave form with a characteristic that is related to the photovoltaic cell voltage and current. As a result only the photovoltaic cell voltage is directly measured in these methods and the photovoltaic cell current is determined indirectly.Type: ApplicationFiled: July 2, 2009Publication date: January 7, 2010Inventors: Fouad Kiamilev, Nicholas Andrew Waite
-
Patent number: 7522671Abstract: An apparatus and method for an interface for transmitting high speed data between circuits. A driver circuit produces first and second differential currents from a digital signal that drive first and second transmission lines. A receiver is connected through first and second terminating resistors to said transmission lines. The resistive elements are in turn connected to first and second common base amplifiers where the differential currents are converted to a differential voltage. The input impedance to the first and second common-base amplifiers is further lowered by a differential amplifier having inputs connected to the inputs of the common-base amplifiers, and an output connected to the bases of said common-base amplifiers. As a result, voltage conversion of the differential signals takes place in the common-base amplifiers and not in the terminating resistors, reducing the level of the differential currents and permitting an increase in the digital data rate.Type: GrantFiled: January 4, 2006Date of Patent: April 21, 2009Assignee: University of DelawareInventors: Fouad Kiamilev, Joshua Kramer, Yongrong Zuo
-
Publication number: 20060227896Abstract: An apparatus and method for an interface for transmitting high speed data between circuits. A driver circuit produces first and second differential currents from a digital signal that drive first and second transmission lines. A receiver is connected through first and second terminating resistors to said transmission lines. The resistive elements are in turn connected to first and second common base amplifiers where the differential currents are converted to a differential voltage. The input impedance to the first and second common-base amplifiers is further lowered by a differential amplifier having inputs connected to the inputs of the common-base amplifiers, and an output connected to the bases of said common-base amplifiers. As a result, voltage conversion of the differential signals takes place in the common-base amplifiers and not in the terminating resistors, reducing the level of the differential currents and permitting an increase in the digital data rate.Type: ApplicationFiled: January 4, 2006Publication date: October 12, 2006Applicant: UNIVERSITY OF DELAWAREInventors: Fouad Kiamilev, Joshua Kramer, Yongrong Zuo
-
Publication number: 20050242272Abstract: Methods and apparatus for generating a code-multiplexed readout value of photocurrents for a photo-detector array of cells are disclosed. Readout values are determined using a multiplexer and current amplifier for each cell and a current-to-voltage converter for each row of cells. The multiplexer multiplexes a photocurrent in an electrical domain for a respective cell using a code and generates electric currents responsive to the photocurrent. The current amplifier amplifies the electric currents. The current-to-voltage converter for each row generates the readout value for that row of the array responsive to the amplified electric currents.Type: ApplicationFiled: April 13, 2005Publication date: November 3, 2005Applicant: U.S. Army Research LaboratoryInventors: William Lawler, Barry Stann, William Ruff, Jorge Garcia, Fouad Kiamilev
-
Patent number: 6774715Abstract: An alternating current filter circuit for a BiCMOS differential amplifier has a circuit that computes a base current of the BiCMOS differential amplifier and a circuit that generates an offset current based upon the computing.Type: GrantFiled: June 26, 2002Date of Patent: August 10, 2004Assignee: Xanoptix Inc.Inventors: Ted Wyman, Fouad Kiamilev
-
Publication number: 20030213925Abstract: An activity detection system for use with an optoelectronic circuit has a pair of single ended transimpedance amplifiers, a filter, a differential amplifier; and a comparator.Type: ApplicationFiled: March 17, 2003Publication date: November 20, 2003Inventors: Fouad Kiamilev, Theodore J. (Ted) Wyman
-
Publication number: 20030173999Abstract: An activity detection system for use with a signal having a high value and a low value has a differential amplifier, a filter and a comparator configured to compare a signal to a threshold value and determine if the threshold value is above the signal, below the signal or in between the high and low values of the signal.Type: ApplicationFiled: March 17, 2003Publication date: September 18, 2003Inventors: Rien Gahlsdorf, Fouad Kiamilev
-
Publication number: 20030174747Abstract: A driver circuit having a single power source that can be used with multiple types of laser devices each having different turn-on voltages.Type: ApplicationFiled: March 17, 2003Publication date: September 18, 2003Inventors: Theodore J. Wyman, Fouad Kiamilev
-
Publication number: 20030075986Abstract: An alternating current filter circuit for a BiCMOS differential amplifier has a circuit that computes a base current of the BiCMOS differential amplifier and a circuit that generates an offset current based upon the computing.Type: ApplicationFiled: June 26, 2002Publication date: April 24, 2003Inventors: Ted Wyman, Fouad Kiamilev