Communications: radio wave antennas – Antennas – Including magnetic material
Reexamination Certificate
2009-04-01
2011-10-18
Nguyen, Hoang V (Department: 2821)
Communications: radio wave antennas
Antennas
Including magnetic material
C343S718000, C343S702000
Reexamination Certificate
active
08040287
ABSTRACT:
A radio wave receiving device includes at least one magnetic drive unit and an antenna structure having a narrow core formed of magnetic material and a coil wound around the central part of the core. The device further includes two external magnetic members, each having a connecting part connected magnetically to one end part of the core. One magnetic member has a magnetism collecting part expanded in one side of the antenna structure from the connecting part to exclude the antenna structure, and the other magnetic member has a magnetism collecting part expanded in the other side of the antenna structure from the connecting part to exclude the antenna structure. These external magnetic members cover the drive unit in the both sides and shut off magnetic flux of external magnetic field from the both sides and collect magnetic flux of radio wave on the one end part of the core.
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Casio Computer Co. Ltd.
Holtz, Holtz, Goodman & Chick, P.C.
Nguyen Hoang V
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