Title:
タグ状態情報を磁気的に格納するように構成される無線周波識別タグ
Document Type and Number:
Japanese Patent JP4180123
Kind Code:
B2
Abstract:
A radio frequency identification tag system (10) utilizes a radio frequency identification tag (16) that includes stored tag information. The tag includes an antenna element (30) and a common electrode (28). The antenna element electrostatically receives an exciter signal (34) from a proximately-located electrostatic exciter (12). Upon receiving the exciter signal, the tag becomes energized, thereby causing it to generate a read signal (36) based on the stored tag information. The antenna element then electrostatically sends the read signal to a proximately-located reader (14), which detects the stored tag information. In addition, exactly one of the tag common electrode and the tag antenna element is arranged to magnetically store tag state information. The tag state information represents exactly one state of two possible states and is read by a proximately-located magnetic reader (18).
Inventors:
Vega, Victor Allen
Nobel H. Eberhardt
Nobel H. Eberhardt
Application Number:
JP54578399A
Publication Date:
November 12, 2008
Filing Date:
December 18, 1998
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
G06K19/07; G06K7/00; G06K7/08; G06K19/077; G08B13/24; H02J17/00
Domestic Patent References:
| JP60100295A | ||||
| JP1182782A | ||||
| JP63151495A |
Attorney, Agent or Firm:
Mamoru Kuwagaki
Masanori Honjo
Naoki Fujimura
Masanori Honjo
Naoki Fujimura