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Display control apparatus and display control system for switching control of two position indication marks

  • US 6,538,675 B2
  • Filed: 04/15/1999
  • Issued: 03/25/2003
  • Est. Priority Date: 04/17/1998
  • Status: Active Grant
First Claim
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1. A display control apparatus having user information input means and connected via communications means to at least one image source apparatus for outputting image information, the display control apparatus comprising:

  • image receiving means for receiving image information output from the at least one image source apparatus, the image information including a second position indication mark;

    a display device for displaying the received image information;

    display control means for displaying a first position indication mark on said display device;

    first receiving means for receiving data for instructing movement of the first position indication mark or the second position indication mark output from said user information input means;

    selection means for selecting one image source apparatus corresponding to the image information in which the first position indication mark is positioned;

    transmitting means for transmitting the data for instructing movement of the second position mark to the one image source apparatus via said communication means;

    second receiving means for receiving data for instructing movement of the first position mark via said communication means output from the one image source apparatus; and

    mark control means for moving the first position indication mark in accordance with the data for instructing movement of the first position indication mark received by said first receiving means or said second receiving means.

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