Patents by Inventor Hans Thörnblad

Hans Thörnblad 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).

  • Video display unit with switchable mode power supply responsive to active sync signals
    Patent number: 6515655
    Abstract: A video display unit includes a built-in switched mode power supply and control means, responsive to the presence of one or more active sync signals (Hsync, Vsync), to switch on the display unit from the DPMS OFF mode, in which it consumes a minimum amount of power and to which it is switched in the absence of any active sync signal. Peak sensing circuitry detects that at least one sync signal is active, when switch is closed. A switch disconnects the SMPS controller from the start-up power source until the optocoupler is driven.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: February 4, 2003
    Assignee: ICL Systems AB
    Inventor: Hans Thörnblad