Abstract:
Methods of operation for data reader and security tag deactivation system whereby a data reader is equipped with EAS deactivation coils/modules disposed in the vicinity of the read volume or generally proximate thereto. System is operable to permit reading of the ID tag on an item, and upon a successful read, the deactivation unit is operable to (1) sense presence of an EAS tag; (2) if presence of EAS tag is sensed, energize the deactivation coil/module to deactivate the EAS tag; (3) sense if EAS tag is deactivated. If EAS tag is sensed to have been deactivated, the system signals and next item is scanned. Also, it may be operable to urge the operator to return an item to the read volume to enhance EAS tag deactivation, one method being by delaying good read acknowledgment until determining that the EAS tag which may have been previously detected has subsequently been deactivated.
Abstract:
Methods of operation for data reader and security tag deactivation system whereby a data reader is equipped with EAS deactivation coils/modules disposed in the vicinity of the read volume or generally proximate thereto. System is operable to permit reading of the ID tag on an item, and upon a successful read, the deactivation unit is operable to (1) sense presence of an EAS tag; (2) if presence of EAS tag is sensed, energize the deactivation coil/module to deactivate the EAS tag; (3) sense if EAS tag is deactivated. If EAS tag is sensed to have been deactivated, the system signals and next item is scanned. Also, it may be operable to urge the operator to return an item to the read volume to enhance EAS tag deactivation, one method being by delaying good read acknowledgment until determining that the EAS tag which may have been previously detected has subsequently been deactivated.
Abstract:
Methods of operation for data reader and security tag deactivation system (10) whereby a data reader is equipped with EAS deactivation coils/modules (14) disposed in the vicinity of the read volume or generally proximate thereto. System (10) is operable to permit reading of the ID tag (5) on an item, and upon a successful read, the deactivation unit (12) is operable to (1) sense presence of an EAS tag (5); (2) if presence of EAS tag (5) is sensed, energize the deactivation coil/module (14) to deactivate the EAS tag (5); (3) sense if EAS tag (5) is deactivated. If EAS tag (5) is sensed to have been deactivated, the system signals and next item is scanned. Also, it may be operable to urge the operator to return an item to the read volume to enhance EAS tag deactivation, one method being by delaying good read acknowledgment until determining that the EAS tag (5) which may have been previously detected has subsequently been deactivated.
Abstract:
PROBLEM TO BE SOLVED: To improve an EAS system in connecting an EAS device installed in the vicinity of an interrogation zone to a monitoring system. SOLUTION: This EAS system is provided with: a first receiver 114 for receiving a response signal at a first frequency from a marker in an interrogation zone 110 for an electronic article monitoring system 100; and a first transmitter 114 connected to the receiver for transmitting the response signal at a second frequency. The first transmitter is equipped with: an amplifier for receiving the response signal as input to output an amplified signal; a local oscillator for supplying an oscillation signal; and a mixer connected to the amplifier and the local oscillator for receiving the amplified signal and the oscillation signal to output a response signal at the second frequency. The EAS system is further provided with a processor connected to the first receiver and the first transmitter for receiving the response signal and certifying the response signal to output a data signal representing the response signal; and the first transmitter transmits the data signal at the second frequency. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
Methods of operation for data reader and security tag deactivation system whereby a data reader is equipped with EAS deactivation coils/modules disposed in the vicinity of the read volume or generally proximate thereto. System is operable to permit reading of the ID tag on an item, and upon a successful read, the deactivation unit is operable to (1) sense presence of an EAS tag; (2) if presence of EAS tag is sensed, energize the deactivation coil/module to deactivate the EAS tag; (3) sense if EAS tag is deactivated. If EAS tag is sensed to have been deactivated, the system signals and next item is scanned. Also, it may be operable to urge the operator to return an item to the read volume to enhance EAS tag deactivation, one method being by delaying good read acknowledgment until determining that the EAS tag which may have been previously detected has subsequently been deactivated.
Abstract:
A system and method for providing synchronized transmission in an electronic article surveillance (EAS) system is provided. The method includes determining a transmission timing difference between a plurality of units of the EAS system using a communication link of the EAS system and synchronizing transmissions for each of the plurality of units based on the transmission timing difference.
Abstract:
A method and apparatus to perform resonant recharge transfers energy from an AC power source (e.g., a power line) or from a DC power source or from bulk capacitors to a deactivation capacitor. The resonant recharge occurs faster than conventional techniques without the need for dissipative current limiting control elements. Through the employment of a resonant approach, the natural impedance of the resonant circuit limits the current without high resistive losses of a limiting resistor or other current limiting regulator. This may increase the efficiency of the recharge circuit and may charge the deactivation capacitor to a voltage that is higher than the voltage of the power source.
Abstract:
Methods of operation for data reader and security tag deactivation system (10) whereby a data reader is equipped with EAS deactivation coils/modules (14) disposed in the vicinity of the read volume or generally proximate thereto. System (10) is operable to permit reading of the ID tag (5) on an item, and upon a successful read, the deactivation unit (12) is operable to (1) sense presence of an EAS tag (5); (2) if presence of EAS tag (5) is sensed, energize the deactivation coil/module (14) to deactivate the EAS tag (5); (3) sense if EAS tag (5) is deactivated. If EAS tag (5) is sensed to have been deactivated, the system signals and next item is scanned. Also, it may be operable to urge the operator to return an item to the read volume to enhance EAS tag deactivation, one method being by delaying good read acknowledgment until determining that the EAS tag (5) which may have been previously detected has subsequently been deactivated.