Patents by Inventor Shuji Murayama

Shuji Murayama 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).

  • 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
  • NETWORK PROJECTOR AND PROJECTOR SYSTEM
    Publication number: 20100083388
    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: Application
    Filed: October 26, 2007
    Publication date: April 1, 2010
    Applicant: NEC DISPLAY SOULUTIONS, INC.
    Inventor: Shuji Murayama