Wrist watch containing internal tag, radio watch, and antenna for wrist watch
First Claim
1. A wrist watch with internal tag, comprising:
- a watch case comprising a ring shaped case, a glass lid configured to seal a front side of said ring shaped case, and a rear lid configured to seal a rear side of said ring shaped case;
a drive section housed in said watch case;
a display section housed in said watch case, the display section being configured to be driven by said drive section and to display a time instant; and
an RFID tag housed in said watch case and comprises an antenna and an IC chip;
wherein said antenna comprises a rod shaped magnetic core member provided between said ring shaped case and said drive section and along the inner surface of said rear lid, and a coil is wound in a helical shape around said magnetic core member.
1 Assignment
0 Petitions
Accused Products
Abstract
The wrist watch with internal tag according to the present invention includes a watch case 12 which includes a ring shaped case 12a and a rear lid 12c, a drive section 13 which is housed in the watch case, a display section 14 which is housed in the watch case 12, is driven by the drive section 13, and displays a time instant, and an RFID tag (18) which is housed in the watch case 12 and includes an antenna 16 and an IC chip 17. The antenna includes a rod shaped magnetic core member 16a which is provided to follow around the inner surface of the rear lid 12c between the ring shaped case 12a and the drive section 13, and a coil 16b which is wound in a helical shape around the magnetic core member 16a. And the magnetic core member 16a is shaped so as to bend around following the inner surface of the ring shaped case (12a), and is made from a layered amorphous foil material or a composite material so as to have a certain flexibility.
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Citations
31 Claims
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1. A wrist watch with internal tag, comprising:
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a watch case comprising a ring shaped case, a glass lid configured to seal a front side of said ring shaped case, and a rear lid configured to seal a rear side of said ring shaped case; a drive section housed in said watch case; a display section housed in said watch case, the display section being configured to be driven by said drive section and to display a time instant; and an RFID tag housed in said watch case and comprises an antenna and an IC chip; wherein said antenna comprises a rod shaped magnetic core member provided between said ring shaped case and said drive section and along the inner surface of said rear lid, and a coil is wound in a helical shape around said magnetic core member. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wrist watch with internal tag, comprising:
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a watch case comprising a ring shaped case, a glass lid configured to seal a front side of said ring shaped case, and a rear lid configured to seal a rear side of said ring shaped case; a drive section housed in said watch case; a display section housed in said watch case, the display section being configured to be driven by said drive section and to display a time instant; and an RFID tag which is housed in said watch case and comprises an antenna and an IC chip; wherein said antenna comprises a magnetic backing provided to follow around an inner surface of said rear lid, a pair of magnetic core members configured to project from said magnetic backing on opposite sides of said drive section, and a series coil which is wound in a helical shape upon said pair of magnetic core members. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A radio watch, comprising:
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a watch case comprising a ring shaped case, a glass lid configured to seal a front side of said ring shaped case, and a rear lid configured to seal a rear side of said ring shaped case; a drive section housed in said watch case; a display section housed in said watch case, the display section being configured to be driven by said drive section and to display a time instant; an antenna configured to receive a radio signal including time instant information; and a controller housed in said watch case and configured to control said drive section based upon the detected an output from said antenna; wherein said antenna is configured to be between said ring shaped case and said drive section and to follow around an inner surface of said ring shaped case; and said ring shaped case is formed from a metallic material, and said ring shaped case comprises a first slit configured to cut completely through said ring shaped case in at least one place. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An antenna for a wrist watch which comprises a watch case comprising a ring shaped case, a glass lid which seals a front side of said ring shaped case, and a rear lid which seals a rear side of said ring shaped case, and a drive section which is housed in said watch case, wherein:
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said antenna is housed within said watch case, and comprises a magnetic core member and a coil assembly; said magnetic core member has a hole in which said drive section can be inserted, and is formed in a ring shape which can be inserted between said drive section and said ring shaped case; and said coil assembly comprises a first coil which is wound around the outer peripheral surface of said ring shaped magnetic core member so as to have a magnetic core axis which coincides with the central axis of said ring shaped magnetic core member, and a second coil which is wound in a helical shape upon said ring shaped magnetic core member so as to have said ring shaped magnetic core member as its magnetic core axis. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification