TREA

Transducers of moving-armature or moving-core type

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Industry

  • CPC
  • H04R11/00
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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

H04R11/00Transducers of moving-armature or moving-core type

Sub Industries

H04R11/02Loudspeakers H04R11/04Microphones H04R11/06Telephone receivers H04R11/08Gramophone pick-ups using a stylus Recorders using a stylus H04R11/10comprising two or more styli or transducers H04R11/12signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously H04R11/14Resonant transducers
Industries