EARPHONE

PURPOSE: A vibration earphone unit is provided to transmit a sound with high quality to a user by reducing a high sound and a low sound generated in an inner center of a sound transmission plate through a high sound offset plate. CONSTITUTION: One side of a lower housing is opened. The lower housing...

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Bibliographic Details
Main Author KANG, SIN WON
Format Patent
LanguageEnglish
Published 10.12.2009
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:PURPOSE: A vibration earphone unit is provided to transmit a sound with high quality to a user by reducing a high sound and a low sound generated in an inner center of a sound transmission plate through a high sound offset plate. CONSTITUTION: One side of a lower housing is opened. The lower housing forms a receiving unit inside. An upper housing is combined in the outer side of the lower housing by a forcible fit. The upper side and the lower side of the upper housing are opened. The vibration is formed in the receiving unit of the lower housing and includes a yoke, an outer magnet, an inner magnet, and a rivet. An elastic unit(40) is comprised of a flat spring and an insert gasket. A sound transmission unit(50) is comprised of a thin film sound transmission plate(51) and a high sound offset plate(52). The sound transmission plate is combined in the upper opened side of the upper housing. A high sound offset plate offsets the high sound to the upper side of the sound transmission plate.
Bibliography:Application Number: KR20090086277