SPEAKER

PROBLEM TO BE SOLVED: To provide a loud speaker used for various acoustic instruments, which improves distortion of sounds by amplitude controlling while reproducing rich low-pitched sounds. SOLUTION: The speaker comprises: a magnetic circuit fixed to a frame; a voice coil which is inserted into a m...

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Bibliographische Detailangaben
1. Verfasser:	YAMAGISHI KIYOSHI
Format:	Patent
Sprache:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a loud speaker used for various acoustic instruments, which improves distortion of sounds by amplitude controlling while reproducing rich low-pitched sounds. SOLUTION: The speaker comprises: a magnetic circuit fixed to a frame; a voice coil which is inserted into a magnetic gap of the magnetic circuit; a damper which is fixed to the voice coil and the frame; and a diaphragm which is fixed to the frame and the voice coil. A plurality of openings are formed on a corrugation on the inner circumference side of the damper and are covered by elastic bodies. In this manner, rich low-pitched sounds are reproduced and distortion and abnormal sounds is improved. COPYRIGHT: (C)2011,JPO&INPIT