| 摘要 |
<p>A magnetic sensing device (16) comprises a magnetic sensor (20) and a digital circuit (30). The magnetic sensor (20) is operable to output an analog signal as an indication of any movement of an object (1). The digital circuit can include a dynamic reference threshold generator (50) to output a reference signal in response to a detection of a signal feature of the analog signal and to a detection of a diametric signal feature of the analog signal, and further include an output format generator (60) to output a digital signal in response to a comparison of the analog signal and the reference signal. The digital circuit can include a dynamic reference threshold generator to output a reference signal in response to a detection of a first pair of quadrants of the analog signal and a detection of a second pair of quadrants of the analog signal, and further include an output format generator to output a digital signal in response to a comparison of the analog signal and the reference signal.</p> |
