| 摘要 |
PROBLEM TO BE SOLVED: To provide a motional feedback system that minimizes nonlinear distortion of a loudspeaker. SOLUTION: The motional feedback system that minimizes nonlinear distortion of the loudspeaker includes: an audio amplifier having an output with a variable output impedance, the output supplying an amplified audio signal to drive the loudspeaker; and an impedance control module that is contained in the audio amplifier and is configured to control the variable output impedance as a function of the frequency of the audio signal. COPYRIGHT: (C)2011,JPO&INPIT
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