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A Method for Changing the Direction of a Pointer Depending on the Motion

IP.com Disclosure Number: IPCOM000123369D
Original Publication Date: 1998-Oct-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 3 page(s) / 54K

Publishing Venue

IBM

Related People

Furui, Y: AUTHOR

Abstract

Disclosed is a new method related to the display and operation of a pointing cursor (or "pointer") on the screen of a computer system. The basic concept of this method includes (1) switching the operation mode of the pointer, not by means of an independent operation such as selecting an item from a window menu or clicking a mouse button, but according to the motion of the pointer, and (2) controlling the direction indicated by the pointer. This method allows a user of a computer system to move the pointer while maintaining a constant angle between the direction in which it is pointing and the direction of motion.

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A Method for Changing the Direction of a Pointer Depending on the
Motion

   Disclosed is a new method related to the display and
operation of a pointing cursor (or "pointer") on the screen of a
computer system.  The basic concept of this method includes (1)
switching the operation mode of the pointer, not by means of an
independent operation such as selecting an item from a window menu or
clicking a mouse button, but according to the motion of the pointer,
and (2) controlling the direction indicated by the pointer.  This
method allows a user of a computer system to move the pointer while
maintaining a constant angle between the direction in which it is
pointing and the direction of motion.

   First, this method categorizes the direction of motion as
either "forward," "backward," or "sideways" by comparing the
direction in which the pointer is currently pointing and the
direction of motion.  For example, when the pointer begins to move,
"forward" is any direction within 45 degrees of the direction in
which it is pointing; while the pointer is moving forward or
backward, "forward" is any direction within 60 degrees of the
direction in which it is pointing, as in Figure 1; and while the
pointer is moving sideways, "forward" is any direction within 30
degrees of the direction in which it is pointing, as in Figure 2; in
each case, "backward" is the opposite of "forward," and "sideways"
covers all the remaining directions.  The range of each category can
be variable, depen...