Patents by Inventor Joseph Alexander Carr

Joseph Alexander Carr 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: 10916110
    Abstract: Systems, apparatus, and methods are disclosed for emergency lighting and evacuation. A building may include several emergency lighting stations in which at least some, if not all, of the lighting station includes a lighting device, a motion sensor, a speaker, a video camera, and a wireless access point. A controller adapter may provide power to and communicate with the lighting stations via Power-over-Ethernet (PoE) connections. A central controller may communicate with the controller adapter to control the emergency lighting stations through the PoE connections.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 9, 2021
    Assignee: ABB Schweiz AG
    Inventors: Joseph Alexander Carr, Zhenyuan Wang
  • Publication number: 20200020213
    Abstract: Systems, apparatus, and methods are disclosed for emergency lighting and evacuation. A building may include several emergency lighting stations in which at least some, if not all, of the lighting station includes a lighting device, a motion sensor, a speaker, a video camera, and a wireless access point. A controller adapter may provide power to and communicate with the lighting stations via Power-over-Ethernet (PoE) connections. A central controller may communicate with the controller adapter to control the emergency lighting stations through the PoE connections.
    Type: Application
    Filed: February 28, 2018
    Publication date: January 16, 2020
    Inventors: Joseph Alexander Carr, Zhenyuan Wang
  • Patent number: 8995159
    Abstract: A device for producing an alternating current output voltage from a high-frequency, square-wave input voltage comprising, high-frequency, square-wave input a matrix converter and a control system. The matrix converter comprises a plurality of electrical switches. The high-frequency input and the matrix converter are electrically connected to each other. The control system is connected to each switch of the matrix converter. The control system is electrically connected to the input of the matrix converter. The control system is configured to operate each electrical switch of the matrix converter converting a high-frequency, square-wave input voltage across the first input port of the matrix converter and the second input port of the matrix converter to an alternating current output voltage at the output of the matrix converter.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: March 31, 2015
    Assignee: U.S. Department of Energy
    Inventors: Joseph Alexander Carr, Juan Carlos Balda