Antenna for a radio-controlled wristwatch
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United States of America Patent
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Oct 17, 2000
Grant Date -
N/A
app pub date -
Aug 10, 1998
filing date -
Aug 8, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radio-controlled wristwatch includes a casing, a printed circuit board disposed in the casing, and an antenna disposed in the casing. The antenna includes a core and a coil carried by the core. The core comprises a stack of soft-iron strips stacked in a direction parallel to a plane of the circuit board. The stack is arranged in a curved shape extending along and adjacent to an outer peripheral edge of the circuit board. The core is bonded to a surface of the circuit board and supports the coil within a pocket formed in the circuit board.
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