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公开(公告)号：EP1846984A2
公开(公告)日：2007-10-24
申请号：EP06769749.0
申请日：2006-02-01
IPC分类号： H01Q7/08
CPC分类号： H01Q7/08 , G06K7/10336 , H01Q19/104 , H01Q21/24
摘要： A core antenna system for use in electronic article surveillance (EAS) and radio frequency identification (RFID) systems. The core antenna system may include a core antenna. The core antenna may include a core, a first resonant winding disposed around at least a portion of the core, the first resonant winding having a first number of winding turns Nl, and a second non-resonant winding disposed around at least a portion of the core, the second non-resonant winding having a second number of winding turns N2, the second number of turns greater than or equal to the first number of turns. The core antenna may be mounted on a shield plate and tuned to an operating frequency on the shield plate such that when the shielded core antenna is further mounted on a mounting surface, e.g., of a checkstand, no significant de-tuning of the antenna takes lace.
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公开(公告)号：EP2033312A1
公开(公告)日：2009-03-11
申请号：EP06785681.5
申请日：2006-06-27
IPC分类号： H03J3/20
CPC分类号： H03J3/20
摘要： A resonant circuit tuning system and a method for tuning are provided. The resonant circuit tuning system may include a resonant circuit having a first capacitive element in series between a transmitter and an antenna coil and a second capacitive element in parallel with the transmitter and the antenna coil. At least one of the first capacitive element and second capacitive element may be configured to be varied. The resonant circuit tuning system also may include a controller for controlling a variable value of at least one of the first and second capacitive elements.
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公开(公告)号：EP1766593A2
公开(公告)日：2007-03-28
申请号：EP05756630.9
申请日：2005-06-07
IPC分类号： G08B25/00
CPC分类号： G08B13/2411
摘要： Method and apparatus to perform resonant recharge for a deactivator are described.
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4.发明公开RESONANT CIRCUIT TUNING SYSTEM USING MAGNETIC FIELD COUPLED REACTIVE ELEMENTS 审中-公开谐振电路调谐系统性磁耦合电抗元件
公开(公告)号：EP2033311A1
公开(公告)日：2009-03-11
申请号：EP06774134.8
申请日：2006-06-27
IPC分类号： H03J3/20
CPC分类号： H03J3/20
摘要： A resonant circuit tuning system and a method for tuning are provided. The resonant circuit tuning system may include an LCR circuit and a reactive element magnetically coupled to the LCR circuit.
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公开(公告)号：EP2033312B1
公开(公告)日：2011-02-16
申请号：EP06785681.5
申请日：2006-06-27
IPC分类号： H03J3/20
CPC分类号： H03J3/20
摘要： A resonant circuit tuning system and a method for tuning are provided. The resonant circuit tuning system may include a resonant circuit having a first capacitive element in series between a transmitter and an antenna coil and a second capacitive element in parallel with the transmitter and the antenna coil. At least one of the first capacitive element and second capacitive element may be configured to be varied. The resonant circuit tuning system also may include a controller for controlling a variable value of at least one of the first and second capacitive elements.
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公开(公告)号：EP1776680A1
公开(公告)日：2007-04-25
申请号：EP05783827.8
申请日：2005-08-05
IPC分类号： G08B13/24
CPC分类号： G08B13/2411
摘要： Method and apparatus for a deactivator using an inductive charging technique are described.
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公开(公告)号：EP1776680B1
公开(公告)日：2010-10-06
申请号：EP05783827.8
申请日：2005-08-05
IPC分类号： G08B13/24
CPC分类号： G08B13/2411
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公开(公告)号：EP2050162A1
公开(公告)日：2009-04-22
申请号：EP07811213.3
申请日：2007-08-08
摘要： An antenna assembly is capable of being installed in a structure wherein the structure includes a covering and a substructure and the antenna assembly is configured with thin film materials to have a total thickness such that the antenna assembly can be disposed between the substructure and the covering. The antenna assembly may have a total thickness not greater than about 15 millimeters (mm), and may include at least one of a transmitter antenna, a transceiver antenna, and a receiver antenna. The receiver antenna may be configured as an air core antenna or a non-air core antenna. The receiver antenna may be configured as a non-air core receiver antenna in an internal compartment over or within a base insulating layer. The antenna assembly may be at least partially housed within a housing assembly of thin film materials so that both can be disposed between the substructure and the covering.
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公开(公告)号：EP1987497A1
公开(公告)日：2008-11-05
申请号：EP06735852.3
申请日：2006-02-21
CPC分类号： H01Q1/2208 , G08B13/2474 , H01Q1/007 , H01Q7/00 , H01Q7/06
摘要： An electronic article surveillance antenna system with wide interrogation zones has a number of core transceiver antennas with each connectable to a transmitter. The core transceiver antennas are adapted to be installed adjacent a ceiling of the wide interrogation zone and generate an interrogation signal into the wide interrogation zone. The core transceiver antennas each are connectable to a receiver to receive and detect a response signal from an electronic surveillance marker disposed in the wide interrogation zone. The system also has transceiver antenna coils with each connectable to the transmitter and adapted to be installed adjacent a floor of the wide interrogation zone. The transceiver antenna coils generate the interrogation signal into the wide interrogation zone and each is also connectable to the receiver to receive and detect the response signal from the electronic surveillance marker disposed in the wide interrogation zone.
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10.发明公开
公开(公告)号：EP1456906A2
公开(公告)日：2004-09-15
申请号：EP02796003.8
申请日：2002-12-18
发明人： COPELAND, Richard, L. , BALCH, Brent, F. , EMBLING, Steven, W. , FARRELL, William, M. , HALL, Stewart, E.
IPC分类号： H01Q7/08
CPC分类号： H01Q7/08 , G08B13/2402 , Y10T428/294 , Y10T428/32
摘要： A magnetic core transceiver antenna (2) for EAS marker detection is provided. The core (4) includes a stack of amorphous alloy ribbons insulated from each other and laminated together. A coil winding of wire (6), also insulted from the ribbons, and connected to an electronic controller provides the transmitter and receiver modes. The transceiver antenna is optimized for the dual mode operation, and is smaller and uses less power than conventional air-core EAS antennas with equivalent performance. Complex core geometries, such as a sandwiched stack of different sized ribbons, can be implemented to vary the effective permeability of the core to customize antenna performance. Multiple transceiver antennas can be combined to increase the size of the generated EAS interrogation zone.
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