Piezoelectric transducers that filter sound into constituent frequency bands, retaining the spectral and temporal features of that sound in a biphasic waveform electrical signal, operating at the resonant frequency of the original soundwave frequency, configured to deliver the biphasic waveform electrical signal in implantable prosthetic hearing devices, namely, cochlear implants

'band':9 'biphas':21,39 'cochlear':49 'configur':35 'constitu':7 'deliv':37 'devic':47 'electr':23,41 'featur':15 'filter':4 'frequenc':8,29,34 'hear':46 'implant':44,50 'name':48 'oper':25 'origin':32 'piezoelectr':1 'prosthet':45 'reson':28 'retain':10 'signal':24,42 'sound':5,18 'soundwav':33 'spectral':12 'tempor':14 'transduc':2 'waveform':22,40

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