Original Publication Date: 1992-Sep-01
Included in the Prior Art Database: 2005-Mar-24
Disclosed is a device which has the same capability as a mouse functionally but it can be used without desk space. It is designed to be used by a standing person. Fig. 1 shows its appearance.
a device which has the same capability as a
mouse functionally but it can be used without desk space. It is
designed to be used by a standing person. Fig. 1 shows its
Fig. 2 shows
the internal structure of the device.
is connected to a mouse port of a personal computer, and it is used
as a pointing device.
holds the device by hand, and uses it by pushing
buttons and changing the angle of the device horizontally and
vertically. Changes of the horizontal angle and the vertical angle
are detected by two angle detectors in the device. Each angle
detector has the same function as the detector in a mouse. When a
user changes the horizontal or the vertical angle of the device by
hand, the ball in the device is not moved so the relative angle
between the device and the ball is changed. The angle detectors
detect this change. Button 1 has the same function as the left
button of a mouse. Button 2 has the same function as the right
button of a mouse. Button 3 is a power switch. Angle detectors
become active when button 3 is pressed. Button 3 (power switch) is
necessary in order to protect movement of the mouse cursor when a
user moves his or her hand. Buttons 1 and 2 are always active
regardless when the button 3 is pressed or not.
In order to
stabilize the ball, there is a weight in the ball,
as shown in Fig. 3.