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US 6,411,569 B1Granted
Antenna arrangement in radio-controlled wristwatch
AssigneeJunghans Uhren GmbH
InventorsGünter Megner, Rüdiger Daut
Life of this patent
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Abstract
A radio-controlled wristwatch includes a casing. A central portion of the casing disposed generally centrally with reference to a longitudinal center axis of the casing is formed of metal at least on the exterior thereof. An antenna core is disposed within a chamber defined by the casing. The antenna core lies on a plane oriented transversely with respect to the longitudinal axis. A spacer ring is disposed in the chamber between the central portion and the antenna core, the spacer ring formed of electrically non-conductive material.
Claims15
A radio-controlled wristwatch comprising:
- a casing defining a longitudinal center axis, and including front and rear ends spaced along the axis, at least an exterior surface of the casing formed of metal;
- a bottom member formed of electrically non-conductive material and attached to the rear end of the casing;
- a glass top attached to the front end of the casing and defining an interior chamber together with the casing and the bottom member;
- a spacer ring of electrically non-conductive material arranged within the chamber coaxially with the casing;
- and
- an antenna core arranged in the chamber at a location spaced axially from the glass top and the bottom member and radially inwardly from the spacer member.
3 more elements
Dependencies are inferred from the claim text.