Patent ID: 6529605
Filing Date: 2003-03-04
Classification: H03G

Abstract:
A device for the noise-dependent adjustment of a desired acoustic signal radiated at a monitoring point, said device comprising:a signal source comprising an output comprising a desired electrical signal; a signal processor comprising an input comprising said desired electrical signal; a sound pickup located at said monitoring point, said sound pickup comprising an input and an output, said input comprising said desired acoustic signal and an acoustic noise signal, and said output comprising a monitoring signal derived from said desired acoustic signal and said acoustic noise signal; an extractor comprising an input and an output, said input comprising said monitoring signal, and said output comprising a noise-signal component of said monitoring signal; a controller comprising an input and an output, said input comprising said noise-signal component of said monitoring signal and at least one additional signal derived from said monitoring signal, and said output comprising a control signal; said input of said signal processor further comprising said control signal; said signal processor further comprising an output comprising a processed desired electrical signal; and a sound converter comprising an input and an output, said input comprising said processed desired electrical signal, and said output comprising said desired acoustic signal.