Patent ID: 9076320
Filing Date: 2015-07-07
Classification: G08B

Abstract:
1. A sensor signal processing apparatus that detects an object using a sensor, the sensor signal processing apparatus comprising: a signal receiving unit that receives a sensor signal from the sensor; a detection unit that determines whether an object exists using the sensor signal and that generates an alarm signal if an object exists; and a false alarm signal removing unit that removes an alarm signal corresponding to a false alarm signal from the alarm signal, wherein the false alarm signal removing unit sets a threshold value from a length of a first alarm signal that is generated using a sensor signal that it receives from the sensor in an initial condition for an initialization period, compares a length of a second alarm signal that is generated using a sensor signal that it receives from the sensor with a threshold value after the initialization period, and determines a second alarm signal having a shorter length than the threshold value as the false alarm signal.