| 摘要 |
PROBLEM TO BE SOLVED: To provide a film-shape light-weight hearing aid capable of coping with hearing difficulties and ages in a wide range by directly transmitting sound waves to the external auditory canal, withstanding use for a long period of time and being manufactured at an extremely low cost. SOLUTION: The hearing aid is turned to a film shape and the shape is turned to a cut hollow cylindrical shape matched with the external ear. Since it tightly fits and sweat can be diffused, it is clean and the fault of the hearing aid is prevented as well. From the positions of a microphone and a vibration layer and a sound processing circuit, howling is also prevented. When a film print technique is used, mass production is enabled and the extremely inexpensive hearing aid is provided. Since the energy of radio waves is utilized, the need of battery exchange is eliminated. Since the vibration layer directly transmits sound to the external auditory canal, it is used for the hearing difficulties and the ages in the wide range. Radio reception is usable, too. COPYRIGHT: (C)2003,JPO
|
