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RF powered release mechanism for hard tag

A technology of radio frequency energy, energy, applied in the field of security labels

Inactive Publication Date: 2009-06-24
CHECKPOINT SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem is that store personnel who cannot be trusted act as co-conspirators of the customer and can remove the tag without requiring the customer to pay for the merchandise

Method used

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  • RF powered release mechanism for hard tag
  • RF powered release mechanism for hard tag
  • RF powered release mechanism for hard tag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Referring to Fig. 1, a typical prior art hard tag includes an electronic device housing H and a locking pin member 5, wherein the pin 6 is inserted into the garment A product. Figure 2 is a cross-sectional view of a prior art hard tag and latch assembly. Pins 6 are inserted into openings 7 of the housing. A plurality of balls 40 are provided in the ball housing 70, and a space exists in the middle of the balls when the pins 6 are inserted between the balls. The inner wall 75 of the spherical housing 70 is slightly tapered so that the inner diameter of the housing at the open end 7 is smaller than the diameter at the opposite end. The plunger 50 is urged towards the open end of the ball housing by the spring 60 , forcing the ball 40 towards the pin 6 . The size of the balls and the size of the ball housing are such that the balls grip the pin tightly when the plunger and spring are pressurized toward the opening, and do not grip the pin when the plunger is disengaged f...

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PUM

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Abstract

A releasable security tag for attachment to an article of merchandise is disclosed. Features of the security tag include: a locking mechanism with a release for attaching the tag to the article of merchandise; an EAS resonant circuit or an RFID circuit for responding to a first RF signal at a predetermined frequency corresponding to the resonant circuit or to the RFID circuit; an ambient RF energy harvesting circuit; a release signal detection circuit coupled to and powered by the ambient RF energy harvesting circuit and an electro-mechanical actuator electrically coupled to the release signal detection circuit. The electro-mechanical actuator releases the locking mechanism whenever the release signal detection circuit receives a release signal.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of Provisional Application No. 60 / 778,646, filed March 2006, under 35 U.S.C. § 119(e), entitled "Radio Frequency Energy Release Mechanism for Hard Tags." Its entire contents are hereby incorporated by reference. technical field [0003] The present invention relates to security tags, and more particularly discloses a tag which enables a security tag / a security tag to be removed from the item to which it is attached by transmitting a wireless (eg, radio frequency) signal to the tag. Background technique [0004] Electronic Product Surveillance (EAS) security tags typically include resonant circuits that operate with at least one coil and at least one capacitor that operate to resonate when the EAS tag is exposed to a predetermined electromagnetic field (eg, 8.2 MHz). The scanning device transmits the signal at the tag frequency and detects the signal produced by the resonant circuit. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V15/00E05B73/00G08B13/24
CPCE05B73/0017G01V15/00G08B13/2434
Inventor 安德烈·科特法洛克·阿巴迪
Owner CHECKPOINT SYST INC
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