Electronic Watch
AssigneeSeiko Epson Corporation
InventorYasuo NAKAJIMA
Life of this patent
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Abstract
An electronic watch includes a case, a hand, a dial, a drive mechanism for driving the hand, a main plate to which the drive mechanism is attached, an antenna disposed between the dial and the main plate in side view when viewed from a direction parallel to a front surface of the dial, and a printed wired board, where the antenna includes a radiation electrode having a plate shape, a ground electrode having a plate shape, and a dielectric disposed between the radiation electrode and the ground electrode in the side view, the printed wired board is conducted to the radiation electrode via a power feed member, and the radiation electrode includes a portion that protrudes closer to the outside than the main plate in plan view when viewed from a direction orthogonal to the front surface of the dial.
Claims8
An electronic watch, comprising:
- a case;
- a hand;
- a dial;
- a drive mechanism configured to drive the hand;
- a main plate to which the drive mechanism is attached;
- an antenna disposed between the dial and the main plate in side view when viewed from a direction parallel to a front surface of the dial;
- and
- a printed wired board, wherein
- the antenna includes
- a radiation electrode having a plate shape,
- a ground electrode having a plate shape, and
- a dielectric disposed between the radiation electrode and the ground electrode in the side view,
- the printed wired board is conducted to the radiation electrode via a power feed member, and
- the radiation electrode includes a portion that protrudes outward from the main plate in plan view when viewed from a direction orthogonal to the front surface of the dial.
An electronic watch, comprising:
- a case;
- a hand;
- a dial;
- a drive mechanism configured to drive the hand;
- a main plate to which the drive mechanism is attached;
- an antenna disposed between the dial and the main plate in side view when viewed from a direction parallel to a front surface of the dial;
- and
- a printed wired board, wherein
- the main plate includes a first region to which the drive mechanism is attached, and a second region that is provided on an outer circumferential side of the first region and abuts on the case,
- the antenna includes
- a radiation electrode having a plate shape,
- a ground electrode having a plate shape, and
- a dielectric disposed between the radiation electrode and the ground electrode in the side view,
- the printed wired board is conducted to the radiation electrode via a power feed member,
- the dial is formed in a size corresponding to the case, and
- the radiation electrode includes a portion that overlaps the second region in plan view when viewed from a direction orthogonal to the front surface of the dial.
Dependencies are inferred from the claim text.