| 摘要 |
An apparatus (100) for filtering noises in a signal is disclosed. The apparatus comprises a hysteresis filter circuit (110) configured to filter hysteresis noises in an input signal to obtain a first signal;an impulse noise filter circuit (120) comprising a negative noise filter circuit (130) configured to filter negative impulse noises in the first signal to obtain a second signal,and a positive noise filter circuit (140) coupled with the negative noise filter circuit (130) in parallel, and configured to filter positive impulse noises in the first signal to obtain a third signal;and a combiner circuit (150)configured to combine the second signal and the third signal to obtain an output signal. With the apparatus and the method of this disclosure,different types of noises such as hysteresis noises,positive impulse noises as well as negative impulse noises can be filtered by using common electronic components which significantly improves cost effectiveness. |
