Patents by Inventor Paul W. Brazis, Jr.

Paul W. Brazis, Jr. 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: 9869719
    Abstract: A high speed controllable load uses a voltage waveform synthesizer and a driver circuit to dynamically control an electronically variable load to generate a current though an arc fault circuit interrupter (AFCI) device under test. Sensors may be used to monitor a source voltage and the output current to generate an arbitrary waveform have a range of voltage and current phase shifts. An optical isolation circuit allows separation of grounds between a control stage and the AFCI device under test.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 16, 2018
    Assignee: UL LLC
    Inventor: Paul W. Brazis, Jr.
  • Publication number: 20170097391
    Abstract: A high speed controllable load uses a voltage waveform synthesizer and a driver circuit to dynamically control an electronically variable load to generate a current though an arc fault circuit interrupter (AFCI) device under test. Sensors may be used to monitor a source voltage and the output current to generate an arbitrary waveform have a range of voltage and current phase shifts. An optical isolation circuit allows separation of grounds between a control stage and the AFCI device under test.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventor: Paul W. Brazis, JR.
  • Patent number: 9551751
    Abstract: A high speed controllable load uses a voltage waveform synthesizer and a driver circuit to dynamically control an electronically variable load to generate a current though an arc fault circuit interrupter (AFCI) device under test. Sensors may be used to monitor a source voltage and the output current to generate an arbitrary waveform have a range of voltage and current phase shifts. An optical isolation circuit allows separation of grounds between a control stage and the AFCI device under test.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: January 24, 2017
    Assignee: UL LLC
    Inventor: Paul W. Brazis, Jr.
  • Patent number: 9451247
    Abstract: A camera testing apparatus includes a frame assembly, a control unit, and a plurality of first light sources and second light sources coupled to the frame assembly and in communication with the control unit. Each of the first and second light sources is in one of an illuminated first state or a non-illuminated second state, and each of the plurality of first and second light sources is adapted to be within a field of vision of a camera disposed remote from the first and second light sources. The control unit sends a first command to each of the first light sources to change a first operational parameter. The control unit sends a second command to a first one of the second light sources to illuminate at a first brightness and a third command to a second one of the second light sources to illuminate at a second brightness.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: September 20, 2016
    Assignee: UL LLC
    Inventors: Fan He, Paul W. Brazis, Jr.
  • Publication number: 20150146016
    Abstract: A camera testing apparatus includes a frame assembly, a control unit, and a plurality of first light sources and second light sources coupled to the frame assembly and in communication with the control unit. Each of the first and second light sources is in one of an illuminated first state or a non-illuminated second state, and each of the plurality of first and second light sources is adapted to be within a field of vision of a camera disposed remote from the first and second light sources. The control unit sends a first command to each of the first light sources to change a first operational parameter. The control unit sends a second command to a first one of the second light sources to illuminate at a first brightness and a third command to a second one of the second light sources to illuminate at a second brightness.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventors: Fan He, Paul W. Brazis, JR.
  • Publication number: 20120319709
    Abstract: A high speed controllable load uses a voltage waveform synthesizer and a driver circuit to dynamically control an electronically variable load to generate a current though an arc fault circuit interrupter (AFCI) device under test. Sensors may be used to monitor a source voltage and the output current to generate an arbitrary waveform have a range of voltage and current phase shifts. An optical isolation circuit allows separation of grounds between a control stage and the AFCI device under test.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 20, 2012
    Applicant: UNDERWRITERS LABORATORIES INC.
    Inventor: Paul W. Brazis, JR.
  • Publication number: 20100163861
    Abstract: A method and apparatus for an optically transparent field effect transistor on a substrate. The gate electrode, the dielectric, the semiconducting layer, the source electrode, and the drain electrode are optically transparent layers of nanoparticles that are formed using one or more graphic arts printing processes. The dielectric layer is in contact with the gate electrode, the semiconducting layer is in contact with the dielectric layer, and the source and drain electrodes are in contact with the semiconducting layer.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 1, 2010
    Applicant: Motorola, Inc.
    Inventor: Paul W. Brazis, JR.
  • Patent number: 6677607
    Abstract: A semiconductor device having a flexible or rigid substrate (11) having a gate electrode (21), a source electrode (61 and 101), and a drain electrode (62 and 102) formed thereon and organic semiconductor material (51, 81, and 91) disposed at least partially thereover. The gate electrode (21) has a thin dielectric layer 41 formed thereabout through oxidation. In many of the embodiments, any of the above elements can be formed through contact or non-contact printing. Sizing of the resultant device can be readily scaled to suit various needs.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: January 13, 2004
    Assignee: Motorola, Inc.
    Inventors: Steven M. Scheifers, Daniel R. Gamota, Paul W. Brazis, Jr., Jie Zhang, Lawrence E. Lach
  • Patent number: 6603141
    Abstract: A semiconductor device formed of a flexible or rigid substrate (10) having a gate electrode (11), a source electrode (12), and a drain electrode (13) formed thereon and organic semiconductor material (14) disposed at least partially thereover. With appropriate selection of material, the gate electrode (11) will form a Schottky junction and an ohmic contact will form between the organic semiconductor material (14) and each of the source electrode (12) and drain electrode (13). In many of the embodiments, any of the above elements can be formed through contact or non-contact printing. Sizing of the resultant device can be readily scaled to suit various needs.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: August 5, 2003
    Assignee: Motorola, Inc.
    Inventors: Lawrence E. Lach, Steven M. Scheifers, Jie Zhang, Daniel R. Gamota, Paul W. Brazis, Jr.