Title:
【発明の名称】ウィーガンドワイヤを有するトークン
Document Type and Number:
Japanese Patent JP2001526432
Kind Code:
A
Abstract:
A Wiegand token essentially is comprised of a disk-like token body that has two substantially flat surfaces, one of the flat surface including a groove, for example, a circular groove, therein, and a Wiegand wire is embedded within the groove of the token body. The Wiegand token may have multiple concentric grooves with a Wiegand wire embedded within each groove. In general, the Wiegand token is for use in a device having a read head that responds to a magnetic field change generated from a switch in state of the Wiegand wire as the token passes by the read head. When the token includes plural Wiegand wires therein, the read head responds separately to each magnetic field change generated from a switch in state of each Wiegand wire as the respective Wiegand wire passes by the read head. Moreover, the read head separately responds to magnetic field changes that are generated from a switch in state of two different segments of the Wiegand wire as the respective segment passes by the read head. A method of producing the Wiegand token involves forming a groove within a flat surface of a token body, and embedding a Wiegand wire within the groove of the token body to produce the Wiegand token.
Inventors:
David Jay Durgos
Application Number:
JP2000524769A
Publication Date:
December 18, 2001
Filing Date:
December 03, 1998
Export Citation:
Assignee:
H-ID Corporation
International Classes:
G06K19/07; G06K19/077; G07D5/08; G07F1/06; G07F7/02; (IPC1-7): G07F7/02; G06K19/077; G06K19/07; G07F1/06
Attorney, Agent or Firm:
Shuji Watanabe (1 person outside)