Electronic timepiece
AssigneeSeiko Epson Corporation
InventorTeruhiko FUJISAWA
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AssigneeSeiko Epson Corporation
InventorTeruhiko FUJISAWA
Estimating the term…
An electronic timepiece has a base plate made from a non-conductive material, and a planar antenna disposed on the back side of the base plate. The planar antenna has a dielectric substrate and an antenna electrode disposed to the base plate side of the dielectric substrate. An exposed area not superimposed with the antenna electrode 42 is formed on the surface of the dielectric substrate. The base plate has a through-hole overlapping at least part of the antenna electrode in plan view, and a cover part overlapping at least part of the exposed surface in plan view.
An electronic timepiece comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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Indicating the time by visual means: clocks or watches with date or week-day indicators , i.e. calendar clocks or watches; Clockwork calendars
Characterised by the shape of the date indicator: disc-shaped
The radio signal being sent by a satellite, e.g. GPS: tuning or receiving; Circuits therefor
Constructional details
Term end not estimated
1. Technical Field
The present invention relates to an electronic timepiece, and relates more particularly to an electronic timepiece with a planar antenna.
2. Related Art
FIG. 1 illustrates an electronic timepiece according to the invention.
FIG. 2 is a plan view of the electronic timepiece.
FIG. 3 is a section view of the electronic timepiece.
A preferred embodiment of the present invention is described below with reference to the accompanying figures. Note that the crystal 31 side of the electronic timepiece 1 according to this embodiment of the invention is also referred to as the face, front, or top side, and the back cover 12 side is also referred to as the back or bottom side of the electronic timepiece 1.
As shown in FIG. 1 and FIG. 2, the electronic timepiece 1 is a wristwatch with a time display unit for displaying the time using a dial 2 and hands 3, an information display unit including a subdial 2A of the dial 2 and a hand 4, and a calendar display unit including a window 2B in the dial 2 and a date wheel 5.
The dial 2 is a disc-shaped member made of polycarbonate or other non-conductive material. The subdial 2A is located at 6:00 on the dial 2, and the window 2B is located at 3:00 on the dial 2. In addition to the subdial 2A and window 2B, the dial 2 has a through-hole 2C through which the center pivot 3A of the hands 3 passes, and a through-hole 2D through which the pivot 4A of the small hand 4 passes, as shown in FIG. 3 and FIG. 4. Note that the information display unit comprising the subdial 2A and hand 4 (small hand) may be used to indicate the current operating mode of the timepiece, the day of the week, the remaining battery capacity, or other information.