Signal processing device and signal processing method
AssigneeSocionext Inc.
InventorShuji Miyasaka
Life of this patent
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Abstract
A signal processing device includes: a resonant band-pass filter which extracts a frequency component which causes resonance of a housing from an input signal; a harmonic generating unit configured to generate a harmonic signal for an output signal of the resonant band-pass filter; an adding unit configured to add an output signal of the harmonic generating unit and at least a portion of a frequency component of the input signal; and a resonant band-stop filter which removes the frequency component which causes the resonance of the housing from an output signal of the adding unit.
Claims6
A signal processing device comprising:
- a resonant band-pass filter which extracts a frequency component which causes resonance of a housing from an input signal;
- a harmonic generating unit configured to generate a harmonic signal for an output signal of the resonant band-pass filter;
- an adding unit configured to add an output signal of the harmonic generating unit and at least a portion of a frequency component of the input signal;
- and
- a resonant band-stop filter which removes the frequency component which causes the resonance of the housing from an output signal of the adding unit.
A signal processing device comprising:
- a housing;
- a resonant band-pass filter which extracts a frequency component which causes resonance of the housing from an input signal;
- a harmonic generating unit configured to generate a harmonic signal for an output signal of the resonant band-pass filter;
- an adding unit configured to add an output signal of the harmonic generating unit and at least a portion of a frequency component of the input signal;
- and
- a resonant band-stop filter which removes the frequency component which causes the resonance of the housing from an output signal of the adding unit.
A signal processing method performed by a signal processing device, the method comprising:
- extracting a frequency component which causes resonance of a housing from an input signal;
- generating a harmonic signal for the frequency component extracted in the extracting;
- adding the harmonic signal generated in the generating and at least a portion of a frequency component of the input signal;
- and
- removing the frequency component which causes the resonance of the housing from a signal obtained by the adding.
A signal processing method performed by a signal processing device which includes a housing, the method comprising:
- extracting a frequency component which causes resonance of the housing from an input signal;
- generating a harmonic signal for the frequency component extracted in the extracting;
- adding the harmonic signal generated in the generating and at least a portion of a frequency component of the input signal;
- and
- removing the frequency component which causes the resonance of the housing from a signal obtained by the adding.
Dependencies are inferred from the claim text.