Computing device and method for removing noise from electroencephalogram signals

The invention discloses a computing device and a method for removing noise from electroencephalogram signals. The computing device comprises a cache module, which is used for caching electroencephalogram signals; a classification module, which is coupled with a buffer and used for determining classification of the electroencephalogram signals, and the classification of the electroencephalogram signals represents noise types of the electroencephalogram signals; a decoder, which is coupled with the classification module and is used for generating instruction codes according to the classification of the electroencephalogram signals and transmitting the instruction codes to a state machine; a plurality of noise removing modules, which are respectively used for removing corresponding noise types so as to obtain electroencephalogram signals subjected to noise removing; and a state machine, which is coupled with the decoder and the plurality of noise removing modules and is used for starting at least one noise remov