Title:
時計および時計の制御方法
Document Type and Number:
Japanese Patent JP7314689
Kind Code:
B2
Abstract:
A watch includes an hour hand having a first conductive portion and rotating about an hour hand shaft, a seconds hand having a second conductive portion and rotating at a rotational speed faster than that of the hour hand about a seconds hand shaft, which is coaxial with the hour hand shaft, and a planar inverted-F antenna disposed, in plan view viewed from a direction parallel to the hour hand shaft, at a position overlapping a rotation range of the first conductive portion and a rotation range of the second conductive portion, and receiving a radio wave, and when the planar inverted-F antenna receives a radio wave, a controller, after rotating the seconds hand and then stopping the seconds hand at a reception indication position, rotates the hour hand such that the first conductive portion and the second conductive portion overlap each other in the plan view.
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Inventors:
Tomotoshi Tezuka
Application Number:
JP2019138616A
Publication Date:
July 26, 2023
Filing Date:
July 29, 2019
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G04R60/10; G04C9/00; G04G5/00; G04R20/02
Domestic Patent References:
| JP2011208952A | ||||
| JP2011053159A | ||||
| JP2016164531A | ||||
| JP2010096523A | ||||
| JP2017161338A | ||||
| JP2018054634A |
Attorney, Agent or Firm:
Satoshi Nakai
Hiroki Matsuoka
Masayuki Imamura
Hiroki Matsuoka
Masayuki Imamura