Patents by Inventor James W. Caldwell

James W. Caldwell 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: 20240112574
    Abstract: A parking enforcement device can be secured to a surface adjacent to the area designated as NO PARKING. The enforcement device can include an elongated hollow body, a window provided to the tubular body, a battery, an internal frame assembly disposed inside of the elongated hollow body, and a camera disposed inside of the elongated hollow body. The internal frame assembly defines a cavity in which the battery is located. A camera support pole extends vertically upwards from the internal frame assembly. The camera is secured to the camera support pole and located vertically along the camera support pole such that the camera views outward through the window. A solar panel can be provided atop the parking enforcement device to recharge the battery.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 4, 2024
    Inventors: Mark J. MORAN, James MARTIN, James CONLAN, Richard W. KELLEY, II, Steven B. LANE, Alexander J. PALUMBO, Marcus N. SCHMIDT, Joseph M. CALDWELL
  • Patent number: 11632080
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: April 18, 2023
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20220286086
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: November 15, 2021
    Publication date: September 8, 2022
    Applicant: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 11190134
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: November 30, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20190372523
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 5, 2019
    Applicant: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 10411647
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: September 10, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 10348242
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 9, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20180034412
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 1, 2018
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 9793855
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 17, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20160344342
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20160278588
    Abstract: A bathing aid storage device comprises a first shell, a second shell, and a drain hole. At least one of the first shell and the second shell comprises a plurality of apertures. At least one of the first shell and the second shell comprises a plurality of gullies. The first shell and the second shell define an enclosure, the enclosure being configured to accommodate a bathing aid.
    Type: Application
    Filed: March 24, 2015
    Publication date: September 29, 2016
    Inventors: James W. Caldwell, Patrick E. Caldwell
  • Patent number: 9425737
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: August 23, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 7479824
    Abstract: A dual mode voltage supply circuit (50) includes an active mode voltage supply circuit (58) and a passive mode voltage supply circuit (60). The active mode voltage supply circuit (58) is selectively operative to supply a voltage (57) based on mode control information (22). The active mode voltage supply circuit (58) is operative to provide a first current capacity. The passive mode voltage supply circuit (60) is operatively coupled to the active mode voltage supply circuit (58). The passive mode voltage supply circuit (60) is operative to supply the voltage (57) when the active mode voltage supply circuit (58) is not supplying the voltage (57). The passive mode voltage supply circuit (60) is operative to provide a second current capacity that is less than the first current capacity.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: January 20, 2009
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Michael L. Bushman, James W. Caldwell, Neal W. Hollenbeck
  • Publication number: 20080012628
    Abstract: A dual mode voltage supply circuit (50) includes an active mode voltage supply circuit (58) and a passive mode voltage supply circuit (60). The active mode voltage supply circuit (58) is selectively operative to supply a voltage (57) based on mode control information (22). The active mode voltage supply circuit (58) is operative to provide a first current capacity. The passive mode voltage supply circuit (60) is operatively coupled to the active mode voltage supply circuit (58). The passive mode voltage supply circuit (60) is operative to supply the voltage (57) when the active mode voltage supply circuit (58) is not supplying the voltage (57). The passive mode voltage supply circuit (60) is operative to provide a second current capacity that is less than the first current capacity.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 17, 2008
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Michael L. Bushman, James W. Caldwell, Neal W. Hollenbeck