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US 9,665,071 B2Granted
Electronic timepiece with internal antenna
AssigneeSeiko Epson Corporation
InventorTeruhiko Fujisawa
Life of this patent
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Abstract
An electronic timepiece has a tubular outside case of which at least part is a conductive material, a transparent crystal, a dial housed in the outside case, an annular antenna body disposed around the dial, a feed part that feeds the antenna body, and a dial ring made of a non-conductive material covering the antenna body. The antenna body includes an annular dielectric base, and an arc-shaped fed element feed by the feed part, an annular parasitic element disposed between the dial ring and crystal, and receives circularly polarized waves.
Claims10
An electronic timepiece with internal antenna, comprising:
- a tubular outside case, at least a part of the tubular outside case being made from a conductive material;
- a cover member that covers one of two openings in the case;
- a time display unit housed inside the case;
- an annular antenna body disposed around the time display unit;
- a feed part that feeds the antenna body;
- wherein the antenna body includes a dielectric base and a fed element that is fed by the feed part,
- the outside case has a bezel;
- and
- a parasitic element is disposed between the bezel and the cover member, and the parasitic element is configured to receive circularly polarized waves.
6 more elements
Dependencies are inferred from the claim text.