Portable telephone using bone conduction device
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United States of America Patent
Stats
-
Mar 31, 2009
Grant Date -
Dec 21, 2006
app pub date -
Jan 14, 2005
filing date -
Jan 16, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A portable telephone using a bone conduction speaker, enabling production of high output without any increase in thickness of a housing of a telephone body and having no problem in use in a noisy environment. In the telephone: a bone conduction speaker (1) is used as a speaker; a concave portion (3) having a diameter larger than that of the bone conduction speaker (1) is provided in a housing (2) of a telephone body; a cushioning material (4) is installed between the inner surface of the concave portion (3) and the outer surface of the bone conduction speaker (1); the bone conduction speaker (1) is supported on the cushioning material (4) to provide a gap between the speaker and the bottom of the depression (3); and, the vibration surface of the speaker is flush with or slightly extended outward from the surface of the housing (2).
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Family
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