Patent ID: 6935956
Filing Date: 2005-08-30
Classification: A63F

Abstract:
1. A control apparatus, comprising: a controller; a detecting device for providing analog signals in response to pressures applied to the controller during normal operation of the controller; a calibration voltage circuit for providing predetermined maximum and minimum calibration voltages; and an output unit including a level segmenting unit for monitoring voltage fluctuations in the predetermined maximum and minimum calibration voltages, segmenting an output level of the analog signals into discrete calibration levels based on the predetermined maximum and minimum calibration voltages after the occurrence of any voltage fluctuations in the predetermined maximum and minimum calibration voltages and segmenting output levels of the analog signals into the calibration levels during normal operation, and an analog-to-digital (A/D) converting unit for converting the analog output levels into digital signals each having a plurality of bits.