METHOD AND DEVICE FOR CONVERTING ELECTRIC SIGNALS INTO SOUND WAVES Russian patent published in 1998 - IPC

FIELD: loudspeakers in which acoustic waves are produced from electric oscillations and acoustic power is radiated into environment. SUBSTANCE: audio-range electric signal is submitted as digital signal in parallel N-bit code, square-pulse trains synchronous with binary trains of respective digital-signal bits are shaped from each of N bits of digital signal, and acoustic waves radiating N trains of acoustic pulse signals are excited by shaped signals of N acoustic emitters. Acoustic-signal pulse power for length equal to digital-signal sampling frequency period is calculated for each acoustic radiator using definite dependence. EFFECT: characteristics of reproduced sound frequencies throughout entire audio-frequency range. 11 cl, 9 dwg