Patent ID: 9684022
Date: 2017-06-20
CPC Classifications: A61B,G01R,H03M

Claim:
1. A sensor device comprising: a sensing voltage generating unit receiving an input voltage and generating a sensed voltage that is a function of an external environment; a pulse generating unit generating a first pulse having a first period, wherein the first period includes a first component that is proportional to the sensed voltage and a second component that is caused by a switching error of the pulse generating unit; a first AND gate receiving the first pulse, receiving a processed clock signal, and outputting a second pulse; a 2 a second AND gate receiving the third pulse, receiving a clock signal, and generating a fourth pulse; a 2 an inverter receiving the third pulse and generating a sixth pulse; a reset-set (RS) flip-flop receiving the fifth pulse into a Set input, receiving the sixth pulse into a Reset input, and outputting a seventh pulse, wherein the seventh pulse is not proportional to the switching error; and a counter receiving the seventh pulse and outputting an N-bit value of the seventh pulse.