Electronic timepiece with internal antenna

An electronic clock, built-in technology, used in clocks, antenna supports/installation devices, electronic timers, etc., can solve the problems of easy breakage, enlargement, and large-scale watches of amorphous films, and achieves easy antenna tuning frequency. Effect
CN101504535AInactive Publication Date: 2009-08-12SEIKO EPSON CORP
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
SEIKO EPSON CORP
Publication Date
2009-08-12
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The present invention provides an electronic timepiece with an internal antenna, which can increase the characteristic of antenna without causing the large size of timepiece. An electric wave correcting clock (1) comprises the following components: the antenna which is provided with an elongated magnet core (211) formed by magnet and a coil (212) coiled on the magnetic core (211); a module (10) for containing the antenna (21); and a dial plate (14) which is formed by non-conductive material. Furthermore, an amorphous foil (140) which has a magnetic conductivity larger than that of the dial plate (14) is installed between the dial plate (14) and a module (10) of the electric wave correcting clock (1) in a vertical view for observing the surface orthogonal with the direction from the dial plate (14) to the module (10) at the position that is not overlapped with the coil overlapping area (104) overlapped with the coil winding part (211A) and is overlapped with the guiding overlapping area (105) overlapped with the guiding part (211B).
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Description

technical field

[0001] The present invention relates to an antenna built-in electronic timepiece capable of receiving external wireless information through an antenna. Background technique

[0002] Conventionally, antenna built-in electronic timepieces, such as radio-controlled timepieces, are known, which receive external wireless information including time information from the outside with an antenna and perform processing such as time adjustment. In such electronic timepieces with built-in antennas, in order to improve antenna characteristics, various structures for improving the magnetic concentration effect in the antenna have been studied (for example, refer to Patent Documents 1 and 2).

[0003] The wristwatch described in Patent Document 1 employs a built-in antenna including a laminated core, a winding portion for winding a winding wire around the laminated core, and end caps fixed to both ends of the laminated core.

[0004] In addition, the wristwatch described i...

Claims

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