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48 条记录 (耗时 0.038 秒)

    METAL OXIDE SEMICONDUCTOR DEVICE FOR USE IN UHF ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS
    42.
    发明申请
    METAL OXIDE SEMICONDUCTOR DEVICE FOR USE IN UHF ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS 有权
    用于UHF电子文章监控系统的金属氧化物半导体器件

    公开(公告)号：US20100141451A1

    公开(公告)日：2010-06-10

    申请号：US12331604

    申请日：2008-12-10

    申请人： Ming-Ren Lian ,  Richard Loyd Copeland

    发明人： Ming-Ren Lian ,  Richard Loyd Copeland

    IPC分类号： G08B13/14

    CPC分类号： G08B13/2431 ,  G08B13/242

    摘要： An Electronic Article Surveillance (“EAS”) tag and method and system for deactivating EAS tags without the need to physically contact the tag with a deactivation device. The EAS tag replaces the conventional diode with a non-linear device such as a metal-oxide-semiconductor (“MOS”) capacitor with a given breakdown voltage threshold. Inducing a predetermined voltage across the MOS capacitor results in destruction of the MOS capacitor rendering the EAS tag undetectable in the EAS interrogation system.

    摘要翻译： 一种用于停用EAS标签的电子文件监控（“EAS”）标签和方法和系统，而不需要使用停用设备物理接触标签。 EAS标签用诸如具有给定击穿电压阈值的金属氧化物半导体（“MOS”）电容器的非线性器件代替常规二极管。 在MOS电容两端产生一个预定的电压导致MOS电容器的破坏，导致在EAS询问系统中EAS标签不可检测。

    Integrated Eas/Rfid Device and Disabling Devices Therefor
    44.
    发明申请
    Integrated Eas/Rfid Device and Disabling Devices Therefor 审中-公开
    集成Eas / Rfid设备及其禁用设备

    公开(公告)号：US20080204247A1

    公开(公告)日：2008-08-28

    申请号：US11791089

    申请日：2005-11-18

    申请人： Ming-Ren Lian ,  Gary Mark Shafer

    发明人： Ming-Ren Lian ,  Gary Mark Shafer

    IPC分类号： G08B13/14

    CPC分类号： G08B13/2417 ,  G06K7/0008 ,  G06K19/0723 ,  G06K19/07749 ,  G08B13/2448

    摘要： An integrated electronic article surveillance (EAS) and radiofrequency identification (RFID) marker is provided which a semiconductor device which may he coupled to an antenna for receiving and retransmitting energy and signals to the antenna. A current receiving front end section of the semiconductor device communicates with at least one other section of the device so more than one function can be implemented upon receiving and retransmitting energy and signals. A first switch is operatively coupled to the front end section such that the functions are entirely but reversibly disabled upon closure of the first switch thereby effecting a reversible EAS function. A second switch is operatively coupled to the front end section such that at least one of the functions is at least partially disabled upon closure of the second switch. RFID functions of the marker am retained upon EAS deactivation.

    摘要翻译： 提供了一种集成的电子物品监视（EAS）和射频识别（RFID）标记，其可以耦合到天线的半导体器件，用于接收和重发能量和信号到天线。 半导体器件的电流接收前端部分与器件的至少一个其他部分通信，因此在接收和重发能量和信号时可以实现多于一个功能。 第一开关可操作地耦合到前端部分，使得在第一开关闭合时功能完全可逆地被禁用，从而实现可逆的EAS功能。 第二开关可操作地联接到前端部分，使得至少一个功能在第二开关闭合时至少部分地被禁用。 标记的RFID功能在EAS停用时保留。

    Pulsed magnetic EAS system incorporating single antenna with independent phasing
    47.
    发明授权
    Pulsed magnetic EAS system incorporating single antenna with independent phasing 失效
    具有单独天线的脉冲磁性EAS系统，具有独立定相

    公开(公告)号：US6118378A

    公开(公告)日：2000-09-12

    申请号：US969928

    申请日：1997-11-28

    申请人： Brent F. Balch ,  Stephen W. Embling ,  Ming-Ren Lian

    发明人： Brent F. Balch ,  Stephen W. Embling ,  Ming-Ren Lian

    IPC分类号： G01V3/10 ,  G08B13/24 ,  H04Q1/00

    CPC分类号： G01V3/105 ,  G08B13/2474

    摘要： A single antenna transmits and receives signals. The single antenna has first and second antenna loops substantially lying in a common plane and partially overlapping. First and second transceiver circuits are coupled to the first and second antenna loops respectively, for respectively generating in a first mode of operation first and second pulsed magnetic fields together defining an interrogation zone for a marker generating a characteristic response to the magnetic fields in the interrogation zone, and for receiving signals from the interrogation zone in a second mode of operation. The first and second transceiver circuits alternately generate the first and second magnetic fields substantially in phase with one another and substantially out of phase with one another. The partially overlapping antenna loops prevent detuning of the transceivers otherwise resulting from the phase alternating. Each of the first and second transceiver circuits has a phase controllable transmitter section and a phase controllable receiver section. A controller independently phase controls the transmitter and receiver sections. Each receiver section is coupled across the tuned circuit of its respective transceiver circuit.

    摘要翻译： 单个天线发射和接收信号。 单个天线具有基本上位于公共平面中并且部分重叠的第一和第二天线回路。 第一和第二收发器电路分别耦合到第一和第二天线回路，用于分别在第一和第二脉冲磁场中产生第一和第二脉冲磁场，这一定义了用于产生对询问中的磁场的特征响应的标记的询问区 并且用于在第二操作模式中从询问区接收信号。 第一和第二收发器电路交替地产生彼此基本上同相并且基本上彼此不同相的第一和第二磁场。 部分重叠的天线环路防止收发器失谐，否则由相位交替产生。 第一和第二收发器电路中的每一个具有相位可控发射器部分和相位可控的接收器部分。 控制器独立地控制发射器和接收器部分。 每个接收器部分耦合在其各自的收发器电路的调谐电路上。