Patents by Inventor Stephen M. Ludwig

Stephen M. Ludwig 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: 12354468
    Abstract: Provided herein are examples of a remote control device that provides a retrofit solution for an existing switched control system. The remote control device may comprise a control circuit, a rotatable portion, a magnetic ring coupled to the rotatable portion, and first and second Hall-effect sensor circuits configured to generate respective first and second sensor control signals in response to magnetic fields generated by the magnetic elements. The control circuit may operate in a normal mode when the rotatable portion is being rotated, and in a reduced-power mode when the rotatable portion is not being rotated. The control circuit may disable the second Hall-effect sensor circuit in the reduced-power mode. The control circuit may detect movement of the rotatable portion in response to the first sensor control signal in the reduced-power mode and enable the second Hall-effect sensor circuit in response to detecting movement of the rotatable portion.
    Type: Grant
    Filed: October 5, 2023
    Date of Patent: July 8, 2025
    Assignee: Lutron Technology Company LLC
    Inventors: Matthew V. Harte, Jeffrey S. Hayes, Stephen M. Ludwig, Jr., Robert C. Newman, Jr., Jaykrishna A. Shukla
  • Publication number: 20250166878
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Application
    Filed: January 16, 2025
    Publication date: May 22, 2025
    Applicant: Lutron Technology Company LLC
    Inventors: Alexander Wade Gage, Stephen M. Ludwig, JR., Robert C. Newman, JR., William Taylor Shivell
  • Patent number: 12301378
    Abstract: A load control system may include control devices for controlling power provided to an electrical load. The control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. The control devices may include a load control discovery device capable of sending discovery messages configured to discover control devices within a location. The discovered control devices may be organized by signal strength and may be provided to a network device to enable association of the discovered control devices within a location. The discovery messages may be transmitted within an established discovery range. The discovery range may be adjusted to discover different control devices. Different control devices may be identified as the load control discovery device for discovering different control devices.
    Type: Grant
    Filed: May 30, 2023
    Date of Patent: May 13, 2025
    Assignee: Lutron Technology Company LLC
    Inventors: Kyle Thomas Barco, Bryan Robert Barnes, Erica L Clymer, Brian Michael Courtney, Jordan H. Crafts, William Bryce Fricke, Galen Edgar Knode, Sanjeev Kumar, Jonathan T. Lenz, Stephen M. Ludwig, Jr., Sandeep Mudabail Raghuram, Richard M. Walsh, III
  • Patent number: 12237106
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Grant
    Filed: December 6, 2023
    Date of Patent: February 25, 2025
    Assignee: Lutron Technology Company LLC
    Inventors: Alexander Wade Gage, Stephen M. Ludwig, Jr., Robert C. Newman, Jr., William Taylor Shivell
  • Publication number: 20250063647
    Abstract: A load control system may include load control devices for controlling power provided to an electrical load. The load control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. A user device may discover load control devices when the load control devices are within an established range associated with the user device. The user device and the load control devices may communicate via a wireless communications module. The established range may be adjusted based on the configurable transmit power of the user device or the wireless communications module associated with the user device. A discovered control-target device may be associated with a control-source device to enable the control-target device to control the power provided to the electrical load based on digital messages received from the control-source device.
    Type: Application
    Filed: November 7, 2024
    Publication date: February 20, 2025
    Applicant: Lutron Technology Company LLC
    Inventors: Jordan H. Crafts, William Bryce Fricke, Stephen M. Ludwig, JR., Jonathan T. Lenz, Bryan Robert Barnes, Kyle Thomas Barco
  • Patent number: 12144081
    Abstract: A load control system may include load control devices for controlling power provided to an electrical load. The load control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. A user device may discover load control devices when the load control devices are within an established range associated with the user device. The user device and the load control devices may communicate via a wireless communications module. The established range may be adjusted based on the configurable transmit power of the user device or the wireless communications module associated with the user device. A discovered control-target device may be associated with a control-source device to enable the control-target device to control the power provided to the electrical load based on digital messages received from the control-source device.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: November 12, 2024
    Assignee: Lutron Technology Company LLC
    Inventors: Jordan H. Crafts, William Bryce Fricke, Stephen M. Ludwig, Jr., Jonathan T. Lenz, Bryan Robert Barnes, Kyle Thomas Barco
  • Publication number: 20240105371
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: Lutron Technology Company LLC
    Inventors: Alexander Wade Gage, Stephen M. Ludwig, JR., Robert C. Newman, JR., William Taylor Shivell
  • Publication number: 20240029551
    Abstract: Provided herein are examples of a remote control device that provides a retrofit solution for an existing switched control system. The remote control device may comprise a control circuit, a rotatable portion, a magnetic ring coupled to the rotatable portion, and first and second Hall-effect sensor circuits configured to generate respective first and second sensor control signals in response to magnetic fields generated by the magnetic elements. The control circuit may operate in a normal mode when the rotatable portion is being rotated, and in a reduced-power mode when the rotatable portion is not being rotated. The control circuit may disable the second Hall-effect sensor circuit in the reduced-power mode. The control circuit may detect movement of the rotatable portion in response to the first sensor control signal in the reduced-power mode and enable the second Hall-effect sensor circuit in response to detecting movement of the rotatable portion.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Applicant: Lutron Technology Company LLC
    Inventors: Matthew V. Harte, Jeffrey S. Hayes, Stephen M. Ludwig, Jr., Robert C. Newman, Jr., Jaykrishna A. Shukla
  • Patent number: 11869710
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: January 9, 2024
    Assignee: Lutron Technology Company LLC
    Inventors: Alexander Wade Gage, Stephen M. Ludwig, Jr., Robert C Newman, Jr., William Taylor Shivell
  • Patent number: 11816979
    Abstract: Provided herein are examples of a remote control device that provides a retrofit solution for an existing switched control system. The remote control device may comprise a control circuit, a rotatable portion, a magnetic ring coupled to the rotatable portion, and first and second Hall-effect sensor circuits configured to generate respective first and second sensor control signals in response to magnetic fields generated by the magnetic elements. The control circuit may operate in a normal mode when the rotatable portion is being rotated, and in a reduced-power mode when the rotatable portion is not being rotated. The control circuit may disable the second Hall-effect sensor circuit in the reduced-power mode. The control circuit may detect movement of the rotatable portion in response to the first sensor control signal in the reduced-power mode and enable the second Hall-effect sensor circuit in response to detecting movement of the rotatable portion.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: November 14, 2023
    Assignee: Lutron Technology Company LLC
    Inventors: Matthew V. Harte, Jeffrey S. Hayes, Stephen M. Ludwig, Jr., Robert C. Newman, Jr., Jaykrishna A. Shukla
  • Publication number: 20230308311
    Abstract: A load control system may include control devices for controlling power provided to an electrical load. The control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. The control devices may include a load control discovery device capable of sending discovery messages configured to discover control devices within a location. The discovered control devices may be organized by signal strength and may be provided to a network device to enable association of the discovered control devices within a location. The discovery messages may be transmitted within an established discovery range. The discovery range may be adjusted to discover different control devices. Different control devices may be identified as the load control discovery device for discovering different control devices.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 28, 2023
    Applicant: Lutron Technology Company LLC
    Inventors: Kyle Thomas Barco, Bryan Robert Barnes, Erica L. Clymer, Brian Michael Courtney, Jordan H. Crafts, William Bryce Fricke, Galen Edgar Knode, Sanjeev Kumar, Jonathan T. Lenz, Stephen M. Ludwig, JR., Sandeep Mudabail Raghuram, Richard M. Walsh, III
  • Patent number: 11700147
    Abstract: A load control system may include control devices for controlling power provided to an electrical load. The control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. The control devices may include a load control discovery device capable of sending discovery messages configured to discover control devices within a location. The discovered control devices may be organized by signal strength and may be provided to a network device to enable association of the discovered control devices within a location. The discovery messages may be transmitted within an established discovery range. The discovery range may be adjusted to discover different control devices. Different control devices may be identified as the load control discovery device for discovering different control devices.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: July 11, 2023
    Assignee: Lutron Technology Company LLC
    Inventors: Kyle Thomas Barco, Bryan Robert Barnes, Erica L. Clymer, Brian Michael Courtney, Jordan H. Crafts, William Bryce Fricke, Galen Edgar Knode, Sanjeev Kumar, Jonathan T. Lenz, Stephen M. Ludwig, Jr., Sandeep Mudabail Raghuram, Richard M. Walsh, III
  • Publication number: 20230131496
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Applicant: Lutron Technology Company LLC
    Inventors: Alexander Wade Gage, Stephen M. Ludwig, JR., Robert C. Newman, JR., William Taylor Shivell
  • Publication number: 20230058687
    Abstract: A load control system for controlling at least one electrical load may comprise a plurality of control devices and a sensor external to at least one of the control devices. The sensor may be configured to sense a condition of a space in which the control devices are installed. The at least one electrical load may be controlled in response to the condition sensed by the sensor. The control devices may include respective illuminated portions. The control devices may adjust the intensity of the respective illuminated portions in response to the condition sensed by the sensor. If multiple sensors are included in the load control system to sense the condition, the control devices may adjust the intensity of their respective illuminated portions by aggregating the condition sensed by each sensor.
    Type: Application
    Filed: November 7, 2022
    Publication date: February 23, 2023
    Applicant: Lutron Technology Company LLC
    Inventors: Stephen M. Ludwig, JR., James P. Steiner
  • Patent number: 11574754
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: February 7, 2023
    Assignee: Lutron Technology Company LLC
    Inventors: Robert C. Newman, Jr., Alexander Wade Gage, Stephen M. Ludwig, Jr., William Taylor Shivell
  • Patent number: 11497104
    Abstract: A load control system for controlling at least one electrical load may comprise a plurality of control devices and a sensor external to at least one of the control devices. The sensor may be configured to sense a condition of a space in which the control devices are installed. The at least one electrical load may be controlled in response to the condition sensed by the sensor. The control devices may include respective illuminated portions. The control devices may adjust the intensity of the respective illuminated portions in response to the condition sensed by the sensor. If multiple sensors are included in the load control system to sense the condition, the control devices may adjust the intensity of their respective illuminated portions by aggregating the condition sensed by each sensor.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: November 8, 2022
    Assignee: LUTRON TECHNOLOGY COMPANY LLC
    Inventors: Stephen M. Ludwig, Jr., James P. Steiner
  • Publication number: 20220239529
    Abstract: A load control system may include control devices for controlling power provided to an electrical load. The control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. The control devices may include a load control discovery device capable of sending discovery messages configured to discover control devices within a location. The discovered control devices may be organized by signal strength and may be provided to a network device to enable association of the discovered control devices within a location. The discovery messages may be transmitted within an established discovery range. The discovery range may be adjusted to discover different control devices. Different control devices may be identified as the load control discovery device for discovering different control devices.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Applicant: Lutron Technology Company LLC
    Inventors: Kyle Thomas Barco, Bryan Robert Barnes, Erica L. Clymer, Brian Michael Courtney, Jordan H. Crafts, William Bryce Fricke, Galen Edgar Knode, Sanjeev Kumar, Jonathan T. Lenz, Stephen M. Ludwig, JR., Sandeep Mudabail Raghuram, Richard M. Walsh, III
  • Publication number: 20220230533
    Abstract: Provided herein are examples of a remote control device that provides a retrofit solution for an existing switched control system. The remote control device may comprise a control circuit, a rotatable portion, a magnetic ring coupled to the rotatable portion, and first and second Hall-effect sensor circuits configured to generate respective first and second sensor control signals in response to magnetic fields generated by the magnetic elements. The control circuit may operate in a normal mode when the rotatable portion is being rotated, and in a reduced-power mode when the rotatable portion is not being rotated. The control circuit may disable the second Hall-effect sensor circuit in the reduced-power mode. The control circuit may detect movement of the rotatable portion in response to the first sensor control signal in the reduced-power mode and enable the second Hall-effect sensor circuit in response to detecting movement of the rotatable portion.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Applicant: Lutron Technology Company LLC
    Inventors: Matthew V. Harte, Jeffrey S. Hayes, Stephen M. Ludwig, JR., Robert C. Newman, JR., Jaykrishna A. Shukla
  • Publication number: 20220199307
    Abstract: A control device includes a moving portion, a magnetic element coupled to the moving portion, at least one magnetic sensing circuit responsive to magnetic fields, and at least one magnetic flux pipe structure. The magnetic element may comprise alternating positive and negative sections configured to generate a magnetic field. The magnetic element may be any shape, such as circular, linear, etc. The magnetic sensing circuit may be radially offset from the magnetic element, and the magnetic flux pipe structure may be configured to conduct the magnetic field generated by the magnetic element towards the magnetic sensing circuit. The magnetic element may generate the magnetic field in a first plane, and the magnetic sensing may be responsive to magnetic fields in a second direction that is angularly offset from the first plane. The magnetic flux pipe structure may redirect the magnetic field towards the magnetic sensing circuit in the second direction.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Applicant: Lutron Technology Company LLC
    Inventors: Robert C. Newman, JR., Alexander Wade Gage, Stephen M. Ludwig, JR., William Taylor Shivell
  • Patent number: 11335185
    Abstract: Provided herein are examples of a remote control device that provides a retrofit solution for an existing switched control system. The remote control device may comprise a control circuit, a rotatable portion, a magnetic ring coupled to the rotatable portion, and first and second Hall-effect sensor circuits configured to generate respective first and second sensor control signals in response to magnetic fields generated by the magnetic elements. The control circuit may operate in a normal mode when the rotatable portion is being rotated, and in a reduced-power mode when the rotatable portion is not being rotated. The control circuit may disable the second Hall-effect sensor circuit in the reduced-power mode. The control circuit may detect movement of the rotatable portion in response to the first sensor control signal in the reduced-power mode and enable the second Hall-effect sensor circuit in response to detecting movement of the rotatable portion.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: May 17, 2022
    Assignee: Lutron Technology Company LLC
    Inventors: Matthew V. Harte, Jeffrey S. Hayes, Stephen M. Ludwig, Jr., Robert C. Newman, Jr., Jaykrishna A. Shukla