HEARING AID HAVING CIRCUMFERENTIAL NOISE SUPPRESSING FUNCTION

PURPOSE:To amplify excellently only voice, and to suppress an amplification degree of fussy noise or noise to low by providing an stretching circuit, making a ratio of an input and output characteristics of the stretching circuit comparatively abrupt, and setting the ratio near to 1:2. CONSTITUTION:...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	OWADA KENJIRO
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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