TREA

Electrostatic transducers

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Industry

  • CPC
  • H04R19/00
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Parent Industries

HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS

Current Industry

H04R19/00Electrostatic transducers

Sub Industries

H04R19/005using semiconductor materials H04R19/01characterised by the use of electrets H04R19/013for loudspeakers H04R19/016for microphones H04R19/02Loudspeakers H04R19/04Microphones H04R19/06Gramophone pick-ups using a stylus Recorders using a stylus H04R19/08comprising two or more styli or transducers H04R19/10signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
Industries