Patents by Inventor Joseph R. Bokelman

Joseph R. Bokelman 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).

  • Dimmable light emitting diode lighting system
    Patent number: 9253842
    Abstract: An LED lighting system including a first group of LEDs, a second group of LEDs, and a controller. The first group of LEDs and the second group of LEDs are configured to be independently driven by a first LED drive signal and a second LED drive signal, respectively. The controller is configured receive a dimming signal from a dimmer having a preheat function. The controller is also configured to compensate the dimming signal for the preheat function of the dimmer to generate a compensated dimming signal, generate the first LED drive signal based on the compensated dimming, and generate the second LED drive signal based on the compensated dimming signal. The first LED drive signal is then transmitted the first group of LEDs and the second LED drive signal is transmitted to the second group of LEDs.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: February 2, 2016
    Assignee: Electronic Theatre Controls, Inc.
    Inventors: David J. Cahalane, Joseph R. Bokelman
  • DIMMABLE LIGHT EMITTING DIODE LIGHTING SYSTEM
    Publication number: 20140375210
    Abstract: An LED lighting system including a first group of LEDs, a second group of LEDs, and a controller. The first group of LEDs and the second group of LEDs are configured to be independently driven by a first LED drive signal and a second LED drive signal, respectively. The controller is configured receive a dimming signal from a dimmer having a preheat function. The controller is also configured to compensate the dimming signal for the preheat function of the dimmer to generate a compensated dimming signal, generate the first LED drive signal based on the compensated dimming, and generate the second LED drive signal based on the compensated dimming signal. The first LED drive signal is then transmitted the first group of LEDs and the second LED drive signal is transmitted to the second group of LEDs.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Inventors: David J. Cahalane, Joseph R. Bokelman
  • Dimmable light emitting diode lighting system
    Patent number: 8860326
    Abstract: An LED lighting system including a first group of LEDs, a second group of LEDs, and a controller. The first group of LEDs and the second group of LEDs are configured to be independently driven by a first LED drive signal and a second LED drive signal, respectively. The controller is configured receive a dimming signal from a dimmer having a preheat function. The controller is also configured to compensate the dimming signal for the preheat function of the dimmer to generate a compensated dimming signal, generate the first LED drive signal based on the compensated dimming, and generate the second LED drive signal based on the compensated dimming signal. The first LED drive signal is then transmitted the first group of LEDs and the second LED drive signal is transmitted to the second group of LEDs.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 14, 2014
    Assignee: Electronic Theatre Controls, Inc.
    Inventors: David J. Cahalane, Joseph R. Bokelman
  • DIMMABLE LIGHT EMITTING DIODE LIGHTING SYSTEM
    Publication number: 20130249405
    Abstract: An LED lighting system including a first group of LEDs, a second group of LEDs, and a controller. The first group of LEDs and the second group of LEDs are configured to be independently driven by a first LED drive signal and a second LED drive signal, respectively. The controller is configured receive a dimming signal from a dimmer having a preheat function. The controller is also configured to compensate the dimming signal for the preheat function of the dimmer to generate a compensated dimming signal, generate the first LED drive signal based on the compensated dimming, and generate the second LED drive signal based on the compensated dimming signal. The first LED drive signal is then transmitted the first group of LEDs and the second LED drive signal is transmitted to the second group of LEDs.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 26, 2013
    Applicant: Electronic Theatre Controls, Inc.
    Inventors: David J. Cahalane, Joseph R. Bokelman
  • Lighting fixture
    Patent number: D654207
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: February 14, 2012
    Assignee: Electronic Theatre Controls, Inc.
    Inventors: Robert Kenneth Yasuji Fletcher, Colin M. Gravning, Joseph R. Bokelman, Thomas A. Littrell