Title:
APPARATUS FOR INACTIVATING ELECTRONIC ARTICLE MONITORING TAG
Document Type and Number:
Japanese Patent JP3678800
Kind Code:
B2
Abstract:
PURPOSE: To eliminate unnecessary leakage of flux to the outside by disposing a coil for generating the field from the first and second side faces thereof, and a shield unit comprising a plurality of magnetizable members in parallel with the second side face of the coil in a housing.
CONSTITUTION: An inactivation coil 18 arranged in a transmitting/receiving coil structure 16 is conducted through conductors 22, 24 to generate a required field on the upper side face thereof thus inactivating a tag arranged closely to the outer surface of a cover 12. A shield unit 34 has upper side face extending in parallel with the lower side face of the inactivation coil 18. An assembling/holding member 36 for the base 14 passes through a hole 38 of the shield unit 34 and a hole 40 of the transmitting/receiving coil structure 16 and secures each component of an inactivation unit 10, including the inactivation coil 18, in place.
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Inventors:
Jogue W. Zuzine
Application Number:
JP17144095A
Publication Date:
August 03, 2005
Filing Date:
June 14, 1995
Export Citation:
Assignee:
SENSORMATIC ELECTORONICS CORPORATION
International Classes:
G08B13/24; H01F13/00; H05K9/00; (IPC1-7): H01F13/00; G08B13/24; H05K9/00
Domestic Patent References:
| JP4336396A |
Attorney, Agent or Firm:
Yuzo Yamazaki