Patents by Inventor Mitchell Henman

Mitchell Henman 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).

  • Light-emitting diode (LED) hysteretic current controller
    Publication number: 20060197720
    Abstract: An LED current control device (100) includes a set of one or more LEDs (10) connected to a current-sensing element (20) and an external voltage source (VEXT). A sense signal produced by the current-sensing element may be amplified by a sense signal amplifier (30) and sent to a switching controller (40 and 50). The switching controller may perform hysteretic control on the amplified sense signal by controlling a switching element 70 to turn on and off. The on and off states of the switching element respectively enables and disables power from the external voltage source to the LEDs. As such, hysteretic control may be performed on the current in the LEDs.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 7, 2006
    Inventors: Leonard De Oto, Mitchell Henman