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US 7,548,627 B2Granted
Speaker, and module, electronic apparatus, and device that use the speaker
AssigneePanasonic Corporation
InventorsTomoyasu Takase, Masanori Nakano, Masahide Sumiyama, Hiroshi Yano, Kazutaka Kubo, Koji Sano, Takanori Fukuyama, Shigeru Tomoeda, Kazuki Honda, Toshiyuki Koike, Masashi Kawabe, Takeshi Shimokawatoko
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Abstract
A net made of material containing at least metal is bonded to a protector of a loud speaker, and hence shields electromagnetic waves. Electromagnetic interference can be prevented in an electronic apparatus such as a portable phone employing the loud speaker.
Claims9
A loud speaker comprising:
- a frame bonded to a magnetic circuit;
- a diaphragm bonded to an outer periphery of the frame;
- a voice coil that is bonded to the diaphragm and is partly disposed in a magnetic gap of the magnetic circuit;
- and
- a protector bonded to the frame so as to cover the diaphragm,
- wherein a net made of material containing at least metal is bonded to the protector, and
- wherein the net is bonded to the magnetic circuit.
4 more elements
Dependencies are inferred from the claim text.