SE460809B - Resonant etikettkrets innefattande medel foer att foerstoera dess resonanta egenskaper samt saekerhetssystem avsett foer saadan etikettkrets - Google Patents

Resonant etikettkrets innefattande medel foer att foerstoera dess resonanta egenskaper samt saekerhetssystem avsett foer saadan etikettkrets

Info

Publication number
SE460809B
SE460809B SE8505999A SE8505999A SE460809B SE 460809 B SE460809 B SE 460809B SE 8505999 A SE8505999 A SE 8505999A SE 8505999 A SE8505999 A SE 8505999A SE 460809 B SE460809 B SE 460809B
Authority
SE
Sweden
Prior art keywords
resonant
circuit
label
frequency
conductive
Prior art date
Application number
SE8505999A
Other languages
English (en)
Swedish (sv)
Other versions
SE8505999D0 (sv
SE8505999L (sv
Inventor
George Jay Lichtblau
Original Assignee
Lichtblau G J
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27374678&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE460809(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lichtblau G J filed Critical Lichtblau G J
Publication of SE8505999D0 publication Critical patent/SE8505999D0/xx
Publication of SE8505999L publication Critical patent/SE8505999L/xx
Publication of SE460809B publication Critical patent/SE460809B/sv

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • G08B13/242—Tag deactivation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2431—Tag circuit details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2519/00—Labels, badges
    • B32B2519/02—RFID tags

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
SE8505999A 1982-05-10 1985-12-18 Resonant etikettkrets innefattande medel foer att foerstoera dess resonanta egenskaper samt saekerhetssystem avsett foer saadan etikettkrets SE460809B (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/376,777 US4498076A (en) 1982-05-10 1982-05-10 Resonant tag and deactivator for use in an electronic security system
PCT/US1984/000613 WO1985004975A1 (en) 1982-05-10 1984-04-23 Resonant tag and deactivator for use in an electronic security system
US06/673,265 US4567473A (en) 1982-05-10 1984-11-20 Resonant tag and deactivator for use in an electronic security system

Publications (3)

Publication Number Publication Date
SE8505999D0 SE8505999D0 (sv) 1985-12-18
SE8505999L SE8505999L (sv) 1985-12-18
SE460809B true SE460809B (sv) 1989-11-20

Family

ID=27374678

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8505999A SE460809B (sv) 1982-05-10 1985-12-18 Resonant etikettkrets innefattande medel foer att foerstoera dess resonanta egenskaper samt saekerhetssystem avsett foer saadan etikettkrets

Country Status (7)

Country Link
US (2) US4498076A (el)
EP (1) EP0181327B2 (el)
CH (1) CH669858C2 (el)
GB (1) GB2173073B (el)
NL (1) NL193507C (el)
SE (1) SE460809B (el)
WO (1) WO1985004975A1 (el)

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Also Published As

Publication number Publication date
NL8420106A (nl) 1986-03-03
SE8505999D0 (sv) 1985-12-18
US4567473A (en) 1986-01-28
NL193507B (nl) 1999-08-02
CH669858A5 (el) 1989-04-14
NL193507C (nl) 1999-12-03
EP0181327B1 (en) 1990-09-05
EP0181327A1 (en) 1986-05-21
US4498076A (en) 1985-02-05
WO1985004975A1 (en) 1985-11-07
SE8505999L (sv) 1985-12-18
GB2173073A (en) 1986-10-01
GB8531530D0 (en) 1986-02-05
CH669858C2 (el) 1995-05-22
EP0181327A4 (en) 1986-09-22
GB2173073B (en) 1988-01-13
EP0181327B2 (en) 1997-07-23

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