A ultrasonic sensor array for directional stereo set of ultrasonic wave

The utility model provides an ultrasonic sensor array for directional stereo set of ultrasonic wave has solved the little problem of ultrasonic wave stereo set transmit power among the prior art. Thisan ultrasonic sensor array for directional stereo set of ultrasonic wave includes the PCB board, a p...

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Bibliographische Detailangaben

Hauptverfasser:	WANG NING, TANG YUNMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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