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Electronic Article Surveillance (EAS)
This system uses tags that can be disabled by authorized agents. For example, when you purchase a hardback book from your local bookstore, the clerk places the book on a special plate and activates an electromagnet that disables the tag. (The tag is usually slipped into the binding of the book).
Sensors are placed at exit points; if the sensor detects a tagged object with an active tag, an alarm goes off.
(go to RFID articles)
Index of related articles:
Active Tag (Active RFID Tag)
Amplitude Modulation (AM)
Antenna (RFID Tag Antenna)
Anti-collision
Back scatter (RFID back scatter)
Bi-directional
Contactless smart card
Chipless RFID tag
Contactless Credit Cards
Closed Systems (or Closed Loop Systems)
Code plate (RFID code plate)
Continuous Wave (CM)
Electromagnetic Interference (EMI)
Electronic Article Surveillance (EAS)
Electronic Product Code (EPC)
Error Correcting Code (ECC)
Error Correcting Mode
Error Correcting Protocol
Excite
Factory Programming
Field Programming
Frequency Modulation (FM)
Frequency Shift Keyed Modulation (FSKM)
Frequency Hopping
Harvest
Inductive Coupling
Modulation
Passive RFID Tag (or Passive Tag)
Phase Modulation (PM)
Pulse Duration
RF Fibers
RFID Reader
RFID Tag Collision
RFID tag
Smart label (RFID Smart Label)
RFID Reader Collision
Smart cards
Transponder for RFID
