Patents by Inventor William H. Watts

William H. Watts 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).

  • LED matrix current control system
    Patent number: 6160354
    Abstract: A system for controlling the current supplied to an LED array includes an LED register which sends out individual signals to enable respective LED's. A plurality of drivers are provided, whose outputs are tied together and supply the power to the LED array. A plurality of logic blocks controls the enablement of the plurality of drivers. Each logic block is in communication with the LED register to determine a number of LED's enabled. Each logic block enables a respective driver depending on a number of the LED's enabled.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: December 12, 2000
    Assignee: 3COM Corporation
    Inventors: Boris Ruvinskiy, William H. Watts