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Apparatus for and method of designating a point on displayed image, and readable recording medium storing program for designating a point on displayed image

  • US 6,120,374 A
  • Filed: 08/04/1997
  • Issued: 09/19/2000
  • Est. Priority Date: 08/05/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for designating a position in an area on a displayed image, comprising:

  • image display means for displaying an image on a display screen;

    designating means for designating a point in a predetermined area having different vertical and horizontal dimensions on the image displayed on the display screen;

    said designating means including a joystick tiltable in a two-dimensional direction for generating a positional signal corresponding to a tilted position thereof; and

    a coordinate transforming unit for converting first and second two-dimensional coordinates of said tilted position based on said positional signal respectively into third and fourth two-dimensional coordinates of an image position with respect to a predetermined reference position on said displayed image, with a first conversion constant for converting the first coordinate into the third coordinate and a second conversion constant, which is different from said first conversion constant, for converting the second coordinate into the fourth coordinate.

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