Patents Examined by Edward Lee
  • Network projector including a display signal control unit, and projector system including the network projector
    Patent number: 8286259
    Abstract: The present invention aims to provide a network projector which has a simple security function via a network. The network projector comprises a power source unit which supplies power to the network projector and a display signal control unit which, when confirming that a connection confirmation signal which is transmitted at a fixed period from a host computer via a network is not inputted for more than a predetermined time, outputs a supply stop signal to the power source unit indicating that the supply of power should be stopped.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: October 9, 2012
    Assignee: NEC Display Solutions, Ltd.
    Inventors: Shuji Murayama, Masaki Kitagawa