公开(公告)号：US3715710A

公开(公告)日：1973-02-06

申请号：US3715710D

申请日：1970-11-25

申请人： BERNSTEIN J ,  MULLER J ,  SCHILDKRAUT S

发明人： BERNSTEIN J ,  SCHILDKRAUT S ,  MULLER J

IPC分类号： B06B1/02 ,  G06G7/28 ,  G10K11/34 ,  H03K4/02 ,  H04B11/00

CPC分类号： G10K11/341 ,  B06B1/0215 ,  G06G7/28 ,  H03K4/026

摘要： Unipolar acoustic pulses of relatively large amplitude and short duration are formed by driving an electroacoustical transducer with a generally staircase-shaped waveform, advantageously through a low pass filter. The applied waveform is formed by linearly summing constituent electrical pulses of preselected amplitude, duration, polarity, and relative time of occurrence. The transducer driving signal acts to reinforce the transducer output in the desired direction, while opposing its output in the reverse direction.