NOVELTY - The control apparatus (10) has an acoustic transducer (200) that receives the learning signal generated in a study module (110) of a noise eliminator (100). An acoustic sensor (300) receives the noise signal transmitted from a noise source and learning signal transmitted from the acoustic transducer. A noise elimination module (120) of noise eliminator removes noise signal from the study module by estimating the unknown impulse response from the study module.
USE - Apparatus for controlling active noise from vehicle e.g. car or outdoor application.
ADVANTAGE - The operating efficiency of control apparatus can be improved effectively. The learning time of study module in control apparatus can be reduced. The astriction-speed of noise removing filter can be improved. The operating time of noise removing filter can be reduced.
DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for active noise control method.
DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of the active noise control apparatus. (Drawing includes non-English language text)
Active noise control apparatus (10)
Noise eliminator (100)
Study module (110)
Noise elimination module (120)
Acoustic transducer (200)
Acoustic sensor (300)
