Patent ID: 7433273
Filing Date: 2008-10-07
Classification: G04C,G04G,G04R,H01Q

Abstract:
1. An electronic timepiece with wireless information function, comprising: a cylindrically-shaped case defining an interior volume connected to at least one opening, having a metal part on at least an outside surface, having the opening in at least one end along the cylindrical axis of the case, such that the metal part is formed into a ring as a single unit that surrounds the opening and the interior volume, and a gap is not formed in the metal part passing both from a top of the ring to a bottom of the ring, and from an interior portion of the ring to an exterior portion of the ring; an antenna disposed inside the interior volume of the case such that an axis of the antenna passes through the at least one opening in the case for receiving a radio signal, the antenna comprising an antenna coil, the antenna coil being placed at a distance from the inside perimeter of the ring-shaped metal part; an internal timekeeping function unit which is disposed inside the interior volume of the cylindrically shaped case; a back cover formed of a non-conductive and non-magnetic material, the back cover is closing a back side opening of the case opening, positioned in the vicinity of the interior volume of the case such that the antenna axis extends through the back cover, the back cover is positioned such that the antenna coil and the back cover overlap when seen along the cylindrical axis of the case, and the back cover being constructed to enable the magnetic field component of the received radio signal to pass through the back cover; a control unit configured to execute a control operation based on information in the radio signal received by the antenna; and a time display for presenting time.