Antenna device and radio wave controlled timepiece
US7724199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2009 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Feb 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna device includes an antenna for receiving a time information radio wave, and an antenna support member. In the antenna, a coil is wound around a center portion of a core. In the support member, a non-magnetic portion supports two magnetic portions independently and both end portions of the core of the antenna are magnetically coupled with the magnetic portions. A radio wave controlled timepiece includes a case in an inner space of which the antenna and the support member are installed as described above. In the inner space, a time counting unit, a time display unit connected to the time counting unit, and a time updating unit configured to update the time displayed on the display unit, based on the time information radio wave received by the antenna, are installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.