Horology: time measuring systems or devices – Combined with disparate device
Patent
1989-04-14
1989-11-28
Miska, Vit W.
Horology: time measuring systems or devices
Combined with disparate device
368281, 455344, G04B 4700
Patent
active
048842524
ABSTRACT:
A timepiece (4), adapted to be worn on a part of the body, for example on the wrist, is provided with an antenna capable of capturing an electromagnetic field bearing radio-diffused messages. Measurements have shown that when close to the wrist the radial electric component (E.sub.r) and the azimuthal or tangential magnetic component (H.sub..phi.) were predominant. Consequently, in order to capture the first, a capacitive antenna the electrodes of which are parallel to the back cover (2) of the timepiece will be provided and, to capture the second, an inductive antenna including a winding the axis of which is parallel to the longitudinal direction of the bracelet (3) will be provided.
REFERENCES:
patent: 3631500 (1971-12-01), Itoh
patent: 4419770 (1983-12-01), Yagi et al.
patent: 4482255 (1984-11-01), Gygax et al.
Joss Bernard
Teodoridis Viron
Eta SA Fabriques d'Ebauches
Miska Vit W.
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