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Wireless tagRelated Patent Categories: Registers, Records, ConductiveWireless tag description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070145156, Wireless tag. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATION [0001] This is a division of copending application Ser. No. 11/206,850, filed on Aug. 19, 2005, which is a continuation application of PCT/JP2004/001766 filed on Feb. 18, 2004, which claims priority from a Japanese Patent Application No. 2003-041407 filed on Feb. 19, 2003, the contents of which are incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a wireless tag. More particularly, the present invention relates to a wireless tag for preventing illicit use of entrance tickets at an event hall and the like. [0004] 2. Description of Related Art [0005] A visitor can enter an event hall such as a concert hall, an exhibition ground, etc. by presenting a ticket previously bought to a receptionist of the event. There is a wireless tag used as this kind of ticket as disclosed, for example, at page 15 of Nihon Keizai newspaper dated on Dec. 16, 2002. Depending on an event of which term reaches several days, sometimes, a user can enter the event hall as often as he/she can by using one ticket during the term of the event. In case of this kind of event, a receptionist of the event confirms whether or not a ticket is regular or a retrieving apparatus provided at an entrance gate retrieves information of a wireless tag when a visitor enters the even hall and allow the visitor to re-enter. [0006] However, since the receptionist of the event determines to allow a visitor to re-enter by confirming only a ticket presented by the visitor, there is a problem that he/she admits the visitor to re-enter even in case the ticket is a theft or the ticket has been transferred to the visitor. There is also the same problem in case of using a wireless tag. SUMMARY OF THE INVENTION [0007] Accordingly, it is an object of the present invention to provide a wireless tag, which is capable of overcoming the above drawbacks accompanying the conventional art. The above object can be achieved by combinations described in the independent claims. The dependent claims define further advantageous and exemplary combinations of the present invention. [0008] According to the first aspect of the present invention, a wireless tag includes: a circuit module having an electromagnetic induction unit for generating an electromotive force by an electromagnetic wave of the outside and an information storing unit for storing information and outputting the information by the electromotive force; a base part on which the circuit module is disposed and which is foldable; and a locking member provided in the base part which electrically cuts off the electromagnetic induction unit in case that the base part is folded and locks the base part in the folded state. [0009] The wireless tag further includes a belt for attaching the circuit module to an object. The base part is folded with the belt disposed between its both sides and thus the belt becomes a ring shape. Further, the locking member is disposed near the information storing unit and has a projection part projecting from the base part and a base side insertion part into which the projection unit is inserted, and the belt has a hole into which the locking member is inserted in case of being disposed between both sides of the base part. [0010] According to the second aspect of the present invention, a wireless tag includes: a main and a subsidiary electromagnetic induction units each of which generates an electromotive force by an electromagnetic wave of the outside; and an information storing unit for storing information and outputting the information by the electromotive force, wherein the subsidiary electromagnetic induction unit can be bent from its initial position where it is coplanar with the main electromagnetic induction unit to its layered position where it is layered on the main electromagnetic induction unit. In the initial position, the direction of an electromotive force generated by the subsidiary electromagnetic induction unit of the wireless tag with respect to the information storing unit is the same as that of an electromotive force of the main electromagnetic induction unit, and, in the layered position, the direction of an electromotive force generated by the subsidiary electromagnetic induction unit with respect to the information storing unit is the inverse of that of an electromotive force of the main electromagnetic induction unit. [0011] The information storing unit of the wireless tag has a threshold voltage which makes the information output. The threshold voltage is lower than voltage generated at both ends of the information storing unit by the main electromagnetic induction unit for an electromagnetic wave of a predetermined intensity of the outside and higher than voltage generated at both ends of the information storing unit by the main and subsidiary electromagnetic induction units for an electromagnetic wave of the predetermined intensity in the layered position. The subsidiary electromagnetic induction unit of the wireless tag is electrically connected with the main electromagnetic induction unit in series, and the wireless tag further includes a cut part for electrically cutting off the subsidiary electromagnetic induction unit in case the subsidiary electromagnetic induction unit moves to the layered position. Further, in the initial position, the direction of an electromotive force generated by the subsidiary electromagnetic induction unit with respect to the information storing unit may be the inverse of that of an electromotive force of the main electromagnetic induction unit, and, in the layered position, the direction of an electromotive force generated by the subsidiary electromagnetic induction unit with respect to the information storing unit may be the same as that of an electromotive force of the main electromagnetic induction unit. [0012] According to the third aspect of the present invention, a wireless tag which is attached to an object and sends information on the object wirelessly, includes: a circuit module having an electromagnetic induction unit for generating an electromotive force by an electromagnetic wave of the outside and an information storing unit for storing information and outputting the information by the electromotive force; an attachment part for attaching the circuit module to the object; and a conducting wire part disposed on the attachment part which constitutes a closed circuit with at least the information storing unit, wherein the conducting wire part is electrically cut off in case the circuit module is separated from the object, and thus, the information storing unit is inhibited from operating. Further, the attachment part of the wireless tag has a belt for attaching the circuit module to the object by its ring shape and the conducting wire part has a ring shape substantially in accordance with the ring shape of the belt. In addition, the conducting wire part of the wireless tag is electrically connected with the electromagnetic induction unit and the information storing unit in series. [0013] According to the fourth aspect of the present invention, a wireless tag includes: a circuit module having an electromagnetic induction unit for generating an electromotive force by an electromagnetic wave of the outside and an information storing unit for storing information and outputting the information by the electromotive force; a base part on which the circuit module is disposed and which is foldable; a locking member for locking the base part in its folded state; and an open cut part for electrically cutting off at least a part of the circuit module in case the base is open from its folded state. [0014] The locking member of the wireless tag is disposed near the information storing unit and has a projection part projecting from the base part and a base side insertion part into which the projection unit is inserted, the open cut part has a cut part with a cut adapted to surround the projection part and the information storing unit, and the cut part is separated from the base part by a force smaller than a force required to pull out the projection part from the base side insertion part in case the base part is open from the folded state and thus the circuit module is electrically cut off. The wireless tag further includes a belt for attaching the circuit module to an object. Further, the base part is folded with the belt disposed between its both sides and thus the belt becomes a ring shape. In addition, the belt of the wireless tag has a hole into which the locking member is inserted in case of being disposed between both sides of the base part. [0015] The wireless tag further includes a conducting wire part disposed on the attachment part which constitutes a closed circuit with at least the information storing unit. The conducting wire part has substantially a ring shape in accordance with the ring shape of the belt, the electromagnetic induction unit has a main and a subsidiary electromagnetic induction units, the subsidiary electromagnetic induction unit is electrically connected with the main electromagnetic induction unit in parallel and can be bent from its initial position where it is coplanar with the main electromagnetic induction unit to its layered position where it is layered on the main electromagnetic induction unit, and the locking member electrically cuts off the subsidiary electromagnetic induction unit in case the subsidiary electromagnetic induction unit moves from the initial position to the layered position. [0016] The summary of the invention does not necessarily describe all necessary features of the present invention. The present invention may also be a sub-combination of the features described above. BRIEF DESCRIPTION OF THE DRAWINGS [0017] FIG. 1 is a partial perspective view of a wireless tag 10 according to a first embodiment of the present invention. [0018] FIG. 2 is a top view of a circuit module 20 according to the first embodiment. [0019] FIG. 3 is a drawing of an equivalent circuit of the circuit module 20 in the initial position of the first embodiment. [0020] FIG. 4 is a drawing of an equivalent circuit of the circuit module 20 in the layered position of the first embodiment. Continue reading about Wireless tag... Full patent description for Wireless tag Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Wireless tag patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Wireless tag or other areas of interest. ### Previous Patent Application: Structure and method for packaging flash memory cards Next Patent Application: Method and apparatus for passively controlling airflow Industry Class: Registers ### FreshPatents.com Support Thank you for viewing the Wireless tag patent info. IP-related news and info Results in 0.16273 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m 174 |
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