Patents by Inventor Steven E. Tulk

Steven E. Tulk 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: 5078039
    Abstract: The microprocessor controlled lamp flashing system includes a plurality of flash lamp assemblies for providing lighting effects in response to input control signals from a central processor. The control signals are provided in a data packet with intensity and address signals, and each flash lamp assembly includes a microprocessor which controls a flash control circuit for a flash lamp. Each microprocessor is connected to a preset address circuit which causes the microprocessor to respond to a unique address signal in the data packet and register the intensity signal associated with the unique address signal. The microprocessor controls cooldown of the flash lamp by registering intensity values and deactivating the flash control circuit for a determined cooldown time when the intensity values registered in a time period exceed a predetermined threshold value.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: January 7, 1992
    Assignee: Lightwave Research
    Inventors: Steven E. Tulk, Richard S. Belliveau
  • Patent number: 4962687
    Abstract: The variable color lighting system includes a plurality of lamps controlled by a central controller. The central controller has a number of control channels, and each lamp is preset to be responsive to a specific control channel. To accomplish this, a lamp includes an address circuit which can be varied to respond to a unique address signal from any of the control channels. When the proper address is received, intensity control circuitry within the lamp responds to a digital intensity control signal transmitted by the central controller. The central controller causes all light sources in a lamp to fade from one end intensity value to the next and to reach the next intensity value simultaneously.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: October 16, 1990
    Inventors: Richard S. Belliveau, Michael R. Floyd, Steven E. Tulk