| 摘要 |
PROBLEM TO BE SOLVED: To reduce distortion without adding unnecessary distortion to a signal for speaker reproduction. SOLUTION: An acceleration displacement conversion part 1 integrates in second order an input signal proportional to diaphragm acceleration of a speaker, and converts it to a displacement information signal proportional to diaphragm displacement. A displacement adjustment part 2 nonlinearly processes the displacement information signal to generate an adjusted displacement signal having a linear characteristic with respect to diaphragm displacement. A displacement acceleration conversion part 3 differentiates in second order the adjusted displacement signal to restore it to a signal proportional to the diaphragm acceleration of the speaker. COPYRIGHT: (C)2011,JPO&INPIT |
