| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound collector which is based on a new bone conduction system which uses both a headphone and an earplug. SOLUTION: The earplugs are selected one of twelve kinds by a user individually (namely, self-responsibility). In particular, by securely setting outside parts, good feeling of use can be obtained thereafter, and the purpose can be achieved. This invention aims to reduce cost and research and develop earplugs. The mechanism for transmitting sounds(words) is provided by earplugs. When 100 persons need this means, 200 kinds of earplugs (for right and left) are needed, which is an issue in the future. In addition to the twelve kinds of the earplugs, inexpensive, easy to use, and safe earplugs are to be newly developed. Earplugs using a new material are under development, and costless and safe earplugs are to be developed by means of mass production using metal molds. COPYRIGHT: (C)2009,JPO&INPIT
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