Electronic display system

  • US 5,309,174 A
  • Filed: 03/05/1991
  • Issued: 05/03/1994
  • Est. Priority Date: 10/13/1987
  • Status: Expired due to Term
First Claim
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1. A display system including a display medium means having a display medium for displaying messages, and central processing means disposed at a remote location from said display medium means for initiating a message for display on said display medium, said display comprising:

  • first means for providing electronic communication over a transmission medium between the central processing means and remote display medium means, said first means being controlled to communicate a message from the central processing means to the display medium,second means disposed at the remote display medium means for receiving the message and for causing text or graphic characters representing the message to be displayed on the display medium in a manner capable of being interpreted by individuals viewing the display medium, andthird means disposed at the remote display medium means for detecting the status of at least one operational parameter of displaying a message on the display medium which parameter relates to the proper display of the message on the display medium and for providing information representative thereof;

    fourth means associated with the display medium for controlling the first means to electronically communicate the status information of the third means to the central processing means.

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