Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...
Surface acoustic wave (SAW) devices and resonators harness acoustic waves propagating along the surfaces of piezoelectric materials to perform signal filtering, sensing and frequency control. These ...
Sandia National Laboratories has taken steps to realize the development of acoustic wave amplifiers, a technology that could one day pave the way towards long-awaited tiny RF signal processors.
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