Antenna for a radio-controlled wristwatch

Details Antenna for a radio-controlled wristwatch Antenna for a radio-controlled wristwatch

1998-08-10

2000-10-17

Miska, Vit

Horology: time measuring systems or devices

Plural timepiece system or system device

With wireless synchronization

368 88, 368278, 368281, 343718, G04C 1102, G04B 3700, A44C 500, H01Q 112

Patent

active

061341886

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.

REFERENCES:
patent: 4645357 (1987-02-01), Allgaier et al.
patent: 4650344 (1987-03-01), Allgaier et al.
patent: 4947179 (1990-08-01), Ganter et al.
patent: 5430693 (1995-07-01), Ganter et al.
patent: 5625366 (1997-04-01), D'Hont
patent: 5742564 (1998-04-01), Kuschel et al.

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