Pointing device

Abstract

Abstract PURPOSE:To eliminate a special pad without being affected by friction of a desk by including accelerometers for detecting accelerations separately in the X axis and the Y axis, a first integrator for integrating output thereof and a second integrator for integrating output the first integrator. CONSTITUTION:Current flowing through a voice coil 4 runs in proportion to acceleration moving a mouse 50 to balance the force so that the voice coil 4 itself little moves with respect to a yoke 2. When the mouse 50 stops, the output of a light receiving element increases in the negative direction. Current flowing through the voice coil 4 is taken out as voltage cross an acceleration detection resistance 14 and inputted into a first integrator 12, whose output is inputted into a second integrator 13. As a result, the first integrator 12 integrates the voltage proportional to acceleration to output a signal proportional to the speed and the second integrator 13 integrates the voltage proportional to the speed to output the results as a signal of distance. The output signal is outputted from either of accelerometers when the mouse 50 moves only in the X axis and Y axis.

Inventors

• 👤 Takeshi Yoshida
• 👤 豪 吉田

Bibliographic Details