Appeal No. 2002-1996 Page 4
Application No. 09/086,312
move image up, move image down, move image to right, and move image
to left, said method comprising the steps of:
(a) determining whether there is an image parameter input from a
user for controlling an image parameter of the image;
(b) setting a variable range of a reference value determined when
the display was fabricated, upon it being determined that there is no
image parameter input from the user;
(c) upon the variable range being set, determining whether the user
has operated a control key for changing an image parameter of the
displayed image; and
(d) upon it being determined that the user has operated the control
key, increasing or decreasing image parameter data according to the
image parameter input by the user;
wherein all of said determining steps are carried out entirely by
software means in a programmed microcomputer; and
wherein the step (a) of determining whether there is an image
parameter input from the user comprises the steps of:
(a1) reading the reference value;
(a2) determining whether the user has operated the control
key; and
(a3) upon it being determined that the user has operated the
control key, comparing the image parameter input from the user
with predetermined minimum and maximum values for the image
parameter, and selectively increasing or decreasing the image
parameter input according to the comparison result.
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