Title:
無線識別タグによる電子影を用いる物体の識別および追跡方法
Document Type and Number:
Japanese Patent JP2007504571
Kind Code:
A
Abstract:
A tracking system uses RFID (radio frequency identification) tag technology to facilitate the identification and tracking of items in an environment through a technique known as shadowing. As an object or target moves within a pre-described detection zone with communicating antenna and RFID sensors, the object or target blocks the line of sight between respective antenna and sensors, preventing electromagnetic coupling between the sensor and the antenna and thus casting an electromagnetic shadow along the line of sight. One approach of this invention uses this shadow technique to perform functions such as theft (shrink) deterrence/detection; tracking the motion of objects through an environment by monitoring the shadow; and correlation analysis of people shadows to tagged items (e.g., merchandise, articles) to foster marketing and merchandizing effectiveness.
Inventors:
Eric Eckstine
Gary Ti Mazoki
William S Richie Jr.
Gary Ti Mazoki
William S Richie Jr.
Application Number:
JP2006533243A
Publication Date:
March 01, 2007
Filing Date:
May 18, 2004
Export Citation:
Assignee:
Checkpoint Systems, Incorporated
International Classes:
G08B13/24; G06K7/00; G06K7/08; G06K17/00; G07C9/00
Attorney, Agent or Firm:
Masahiro Ishino
Kazuhisa Inaba
Kazuhisa Inaba