Patents by Inventor Jeffrey Walling
Jeffrey Walling 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).
-
Publication number: 20230214730Abstract: Illustrative methods and systems may determine whether a rideshare is verified based on received rideshare data. A verification code may be assigned to a rideshare trip. The verification code may be provided to a rider of the rideshare trip. The verification code may be received by a vehicle device assigned to the rideshare trip via user input or communication from the rider device. Whether the rider has entered the correct vehicle for the rideshare trip may be verified based on the verification code assigned to the rideshare trip and the verification code received by the rideshare vehicle.Type: ApplicationFiled: December 27, 2022Publication date: July 6, 2023Inventors: Jeffrey Walling, Matthew James, Matthew King, Scott Nordhaus
-
Patent number: 11563078Abstract: Ultra-compact inductor devices for use in integrated circuits (e.g., RF ICs) that use 3-dimensional Dirac materials for providing the inductor. Whereas inductors currently require significant real estate on an integrated circuit, because they require use of an electrically conductive winding around an insulative core, or such metal deposited in a spiral geometry, the present devices can be far more compact, occupying significantly less space on an integrated circuit. For example, an ultra-compact inductor that could be included in an integrated circuit may include a 3-dimensional Dirac material formed into a geometric shape capable of inductance (e.g., as simple as a stripe or series of stripes of such material), deposited on a substantially non-conductive (i.e., insulative) substrate, on which the Dirac material in the selected geometric shape is positioned. Low temperature manufacturing methods compatible with CMOS manufacturing are also provided.Type: GrantFiled: March 12, 2020Date of Patent: January 24, 2023Assignee: THE UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Berardi Sensale Rodriguez, Ashish Chanana, Steven M Blair, Vikram Deshpande, Michael A Scarpulla, Hugo Orlando Condori, Jeffrey Walling
-
Patent number: 11562374Abstract: Illustrative methods and systems may determine whether a rideshare is verified based on received rideshare data. A verification code may be assigned to a rideshare trip. The verification code may be provided to a rider of the rideshare trip. The verification code may be received by a vehicle device assigned to the rideshare trip via user input or communication from the rider device. Whether the rider has entered the correct vehicle for the rideshare trip may be verified based on the verification code assigned to the rideshare trip and the verification code received by the rideshare vehicle.Type: GrantFiled: September 4, 2020Date of Patent: January 24, 2023Assignee: VERI RIDESHARE L.L.C.Inventors: Jeffrey Walling, Matthew James, Matthew King, Scott Nordhaus
-
Patent number: 11437698Abstract: A magnet-less multi-port ring combiner comprises a set of ports extending from the circumference of the magnet-less multi-port ring combiner. The set of ports are positioned at ¼ increments around the circumference of the magnet-less multi-port ring combiner. The set of ports comprise a first input port configured to receive a first input signal and a second input port configured to receive a second input signal, wherein the first input signal is 180° out-of-phase with the second input signal. The N-way magnet-less multi-port combiner comprises more than four ports.Type: GrantFiled: June 5, 2018Date of Patent: September 6, 2022Assignee: L3HARRIS TECHNOLOGIES, INC.Inventors: Kyle David Holzer, Jeffrey Walling
-
Patent number: 11258410Abstract: Embodiments of the disclosure are drawn to apparatuses a hybrid switched capacitor array power amplifier (H-SCPA). The H-SCPA may have an array of storage elements divided into sub-arrays. A first sub-array may be configured to receive a delta sigma modulated (DSM) signal. A second sub-array may be configured to receive a Nyquist-rate signal. The H-SCPA may provide an output based on the received DSM and Nyquist-rate signals. The first sub-array and second sub-array may have different architectures. The DSM signal may represent the least significant bits of the signal and the Nyquist-rate signal may represent the most significant bits of the signal.Type: GrantFiled: August 1, 2019Date of Patent: February 22, 2022Assignee: UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Jeffrey Walling, Ali Azam, Zhidong Bai
-
Patent number: 11233503Abstract: Embodiments of the disclosure are drawn to a low-voltage temperature sensor. The temperature sensor may include a waveform generator, a complementary-to-absolute-temperature (CTAT) voltage generator, a voltage reference, two comparators, and digital logic. A waveform of the waveform generator may be compared to both the CTAT voltage and the voltage reference. The output of the comparison of the CTAT and the waveform may be a pulse-width modulated signal that is temperature-dependent. The output of the comparison of the voltage reference and the waveform may be a signal with constant pulse width. The digital logic may receive the pulsed signals and take a ratio of the two signals to determine a temperature.Type: GrantFiled: March 20, 2020Date of Patent: January 25, 2022Assignee: UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Ali Azam, Jeffrey Walling
-
Publication number: 20210288136Abstract: Ultra-compact inductor devices for use in integrated circuits (e.g., RF ICs) that use 3-dimensional Dirac materials for providing the inductor. Whereas inductors currently require significant real estate on an integrated circuit, because they require use of an electrically conductive winding around an insulative core, or such metal deposited in a spiral geometry, the present devices can be far more compact, occupying significantly less space on an integrated circuit. For example, an ultra-compact inductor that could be included in an integrated circuit may include a 3-dimensional Dirac material formed into a geometric shape capable of inductance (e.g., as simple as a stripe or series of stripes of such material), deposited on a substantially non-conductive (i.e., insulative) substrate, on which the Dirac material in the selected geometric shape is positioned. Low temperature manufacturing methods compatible with CMOS manufacturing are also provided.Type: ApplicationFiled: March 12, 2020Publication date: September 16, 2021Inventors: Berardi Sensale-Rodriguez, Ashish Chanana, Steven M. Blair, Vikram Deshpande, Michael A. Scarpulla, Hugo Orlando Condori, Jeffrey Walling
-
Patent number: 10965330Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for a tunable digital power amplifier (DPA). The tunable DPA may be coupled to a reconfigurable capacitor to form a frequency tunable DPA. The capacitance of the reconfigurable capacitor may be adjusted to optimize the DPA to operate at a desired frequency band. The single tunable DPA may operate over a wide range of frequencies.Type: GrantFiled: February 12, 2020Date of Patent: March 30, 2021Assignee: UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Jeffrey Walling, Zhidong Bai, Ali Azam, Wen Yuan
-
Publication number: 20210073825Abstract: Illustrative methods and systems may determine whether a rideshare is verified based on received rideshare data. A verification code may be assigned to a rideshare trip. The verification code may be provided to a rider of the rideshare trip. The verification code may be received by a vehicle device assigned to the rideshare trip via user input or communication from the rider device. Whether the rider has entered the correct vehicle for the rideshare trip may be verified based on the verification code assigned to the rideshare trip and the verification code received by the rideshare vehicle.Type: ApplicationFiled: September 4, 2020Publication date: March 11, 2021Inventors: Jeffrey Walling, Matthew James, Matthew King, Scott Nordhaus
-
Patent number: 10797773Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for transmission beamforming. A multiphase beam steering transmitter may include a transmitter array of multiple transmitters. A transmitter may include a multiphase logic decoder that directly controls a power amplifier to perform a vector addition of a beam phase and amplitude. A transmitter of the array may include a multiphase clock generator that outputs basis phases with embedded phase modulation data which are output to the multiphase logic decoder. The multiphase clock generator may receive a modulated clock signal. The PA may be a multiphase switched capacitor power amplifier. The multiphase logic decoder may output two phases adjacent to a desired phase as inputs to clocks of the SCPA. The multiphase logic decoder may further output a control signal that determines which cells in the SCPA are activated and when.Type: GrantFiled: February 12, 2020Date of Patent: October 6, 2020Assignee: UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Jeffrey Walling, Wen Yuan, Zhidong Bai, Ali Azam
-
Publication number: 20200310482Abstract: Embodiments of the disclosure are drawn to voltage reference circuits and methods of designing same. The voltage reference circuit may include a main stage and one or more auxiliary stages. The output of the main stage may be a reference voltage. The auxiliary stages may provide a feedback voltage that reduces a temperature dependence of the reference voltage. Each stage may include two or more transistors. The transistors may operate in a sub-threshold mode to provide the reference voltage.Type: ApplicationFiled: March 20, 2020Publication date: October 1, 2020Inventors: Ali Azam, Jeffrey Walling
-
Publication number: 20200313664Abstract: Embodiments of the disclosure are drawn to a low-voltage temperature sensor. The temperature sensor may include a waveform generator, a complementary-to-absolute-temperature (CTAT) voltage generator, a voltage reference, two comparators, and digital logic. A waveform of the waveform generator may be compared to both the CTAT voltage and the voltage reference. The output of the comparison of the CTAT and the waveform may be a pulse-width modulated signal that is temperature-dependent. The output of the comparison of the voltage reference and the waveform may be a signal with constant pulse width. The digital logic may receive the pulsed signals and take a ratio of the two signals to determine a temperature.Type: ApplicationFiled: March 20, 2020Publication date: October 1, 2020Inventors: Ali Azam, Jeffrey Walling
-
Publication number: 20200259512Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for a tunable digital power amplifier (DPA). The tunable DPA may be coupled to a reconfigurable capacitor to form a frequency tunable DPA. The capacitance of the reconfigurable capacitor may be adjusted to optimize the DPA to operate at a desired frequency band. The single tunable DPA may operate over a wide range of frequencies.Type: ApplicationFiled: February 12, 2020Publication date: August 13, 2020Inventors: Jeffrey Walling, Zhidong Bai, Ali Azam, Wen Yuan
-
Publication number: 20200259540Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for transmission beamforming. A multiphase beam steering transmitter may include a transmitter array of multiple transmitters. A transmitter may include a multiphase logic decoder that directly controls a power amplifier to perform a vector addition of a beam phase and amplitude. A transmitter of the array may include a multiphase clock generator that outputs basis phases with embedded phase modulation data which are output to the multiphase logic decoder. The multiphase clock generator may receive a modulated clock signal. The PA may be a multiphase switched capacitor power amplifier. The multiphase logic decoder may output two phases adjacent to a desired phase as inputs to clocks of the SCPA. The multiphase logic decoder may further output a control signal that determines which cells in the SCPA are activated and when.Type: ApplicationFiled: February 12, 2020Publication date: August 13, 2020Inventors: Jeffrey Walling, Wen Yuan, Zhidong Bai, Ali Azam
-
Publication number: 20200168975Abstract: A magnet-less multi-port ring combiner comprises a set of ports extending from the circumference of the magnet-less multi-port ring combiner. The set of ports are positioned at ¼ increments around the circumference of the magnet-less multi-port ring combiner. The set of ports comprise a first input port configured to receive a first input signal and a second input port configured to receive a second input signal, wherein the first input signal is 180° out-of-phase with the second input signal. The N-way magnet-less multi-port combiner comprises more than four ports.Type: ApplicationFiled: June 5, 2018Publication date: May 28, 2020Inventors: Kyle David HOLZER, Jeffrey WALLING
-
Publication number: 20200044615Abstract: Embodiments of the disclosure are drawn to apparatuses a hybrid switched capacitor array power amplifier (H-SCPA). The H-SCPA may have an array of storage elements divided into sub-arrays. A first sub-array may be configured to receive a delta sigma modulated (DSM) signal. A second sub-array may be configured to receive a Nyquist-rate signal. The H-SCPA may provide an output based on the received DSM and Nyquist-rate signals. The first sub-array and second sub-array may have different architectures. The DSM signal may represent the least significant bits of the signal and the Nyquist-rate signal may represent the most significant bits of the signal.Type: ApplicationFiled: August 1, 2019Publication date: February 6, 2020Inventors: Jeffrey Walling, Ali Azam, Zhidong Bai
-
Publication number: 20160336909Abstract: The present disclosure includes a switched capacitor power amplifier. In one embodiment, an SCPA includes a first capacitor array for coupling charge to a common node using first component of a signal. A second capacitor array couples charge to the common node using a second component of the signal. Relatives amplitudes between the first and second signal components may set a fine phase of the signal produced at the common node. Clock signals may be generated and used to set course phases of the signal. In one embodiment, the first and second signal components are in-phase and quadrature signals. In another embodiment, multiphase clocks are generated, and particular clocks having adjacent phases are selected to produce an output signal having a desired phase.Type: ApplicationFiled: August 31, 2015Publication date: November 17, 2016Inventors: Jeffrey Walling, Wen Yuan
-
Patent number: 9078259Abstract: A communication-management method involves a recurring polling scheme, wherein network nodes are polled by a base station according to optimized and/or user-preferred polling intervals assigned to each network node. The polling interval assigned to a given node may be optimized to minimize and/or achieve user-preferred thresholds for energy consumption and latency associated with each network node in the sensor network. Optimized and/or user-preferred polling intervals may be constrained in accordance with various network performance considerations, for example, a recommended update interval for each network node, characteristics of the network nodes themselves, the duration of the timeslots at which the network nodes are polled, and/or other network performance considerations.Type: GrantFiled: August 27, 2013Date of Patent: July 7, 2015Assignee: University of Washington Through its Center for CommercializationInventors: Radha Poovendran, Sidharth Nabar, Jeffrey Walling
-
Publication number: 20130343360Abstract: A communication-management method involves a recurring polling scheme, wherein network nodes are polled by a base station according to optimized and/or user-preferred polling intervals assigned to each network node. The polling interval assigned to a given node may be optimized to minimize and/or achieve user-preferred thresholds for energy consumption and latency associated with each network node in the sensor network. Optimized and/or user-preferred polling intervals may be constrained in accordance with various network performance considerations, for example, a recommended update interval for each network node, characteristics of the network nodes themselves, the duration of the timselots at which the network nodes are polled, and/or other network performance considerations.Type: ApplicationFiled: August 27, 2013Publication date: December 26, 2013Applicant: University of Washington through its Center for CommercializationInventors: Radha Poovendran, Sidharth Nabar, Jeffrey Walling
-
Patent number: 8565109Abstract: A communication-management method involves a recurring polling scheme, wherein network nodes are polled by a base station according to optimized and/or user-preferred polling intervals assigned to each network node. The polling interval assigned to a given node may be optimized to minimize and/or achieve user-preferred thresholds for energy consumption and latency associated with each network node in the sensor network. Optimized and/or user-preferred polling intervals may be constrained in accordance with various network performance considerations, for example, a recommended update interval for each network node, characteristics of the network nodes themselves, the duration of the timselots at which the network nodes are polled, and/or other network performance considerations.Type: GrantFiled: January 26, 2011Date of Patent: October 22, 2013Assignee: University of Washington through its Center of CommercializationInventors: Radha Poovendran, Sidharth Nabar, Jeffrey Walling