HEARING AID
A hearing aid is disclosed in which outside sound collected by a microphone (3) is amplified and radiated from an earphone unit (2) so as to be conducted to the user's external auditory meatus (A). An acoustic tube (1) is of an inside diameter (W) approximately equal to that (Wo) of the user�...
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| Main Authors | , , , |
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| Format | Patent |
| Language | English |
| Published |
13.07.1991
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| Edition | 5 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | A hearing aid is disclosed in which outside sound collected by a microphone (3) is amplified and radiated from an earphone unit (2) so as to be conducted to the user's external auditory meatus (A). An acoustic tube (1) is of an inside diameter (W) approximately equal to that (Wo) of the user's external auditory meatus (A) and has one end (1a) provided as a section for attachment to the user's auricle (D) and the other end (1b) arranged as a reflectionless terminal. The earphone unit (2) is mounted on the peripheral surface of the acoustic tube (1) with the sound radiating surface facing the inside of the tube (1). |
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| AbstractList | A hearing aid is disclosed in which outside sound collected by a microphone (3) is amplified and radiated from an earphone unit (2) so as to be conducted to the user's external auditory meatus (A). An acoustic tube (1) is of an inside diameter (W) approximately equal to that (Wo) of the user's external auditory meatus (A) and has one end (1a) provided as a section for attachment to the user's auricle (D) and the other end (1b) arranged as a reflectionless terminal. The earphone unit (2) is mounted on the peripheral surface of the acoustic tube (1) with the sound radiating surface facing the inside of the tube (1). |
| Author | INANAGA, KIYOFUMI IIDA, YASUHIRO MIURA, MASAYOSHI SOGAWA, HIROYUKI |
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| Notes | Application Number: CA19912033580 |
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| PublicationYear | 1991 |
| RelatedCompanies | SONY CORPORATION |
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| Snippet | A hearing aid is disclosed in which outside sound collected by a microphone (3) is amplified and radiated from an earphone unit (2) so as to be conducted to... |
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| SubjectTerms | DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS |
| Title | HEARING AID |
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