Patent ID: 9115991
Filing Date: 2015-08-25
Classification: G01C

Abstract:
1. An apparatus for detecting a gyro sensor signal, the apparatus comprising: a preamplifier unit outputting sensing voltage and inverse phase sensing voltage that are in proportion to a charge amount of a gyro sensor; a sample and hold unit holding the sensing voltage and the inverse phase sensing voltage of the preamplifier unit for a predetermined period at a predetermined point in time; an averaging unit synthesizing the sensing voltage and the inverse phase sensing voltage held in the sample and hold unit to remove offset; a current passing unit providing a current path of output voltage of the averaging unit; a comparing unit comparing a signal output from the averaging unit and reference voltage with each other to output a comparison signal; and a pulse counter unit counting the number of counting pulses up to before a state transistor of the comparison signal output from the comparing unit is generated to generate and output a count signal.