AUTOMATIC REWIND DETECTION FOR MAGNETIC TAPE CASSETTES
    1.
    发明申请
    AUTOMATIC REWIND DETECTION FOR MAGNETIC TAPE CASSETTES 审中-公开
    磁带盒自动检测

    公开(公告)号:WO0163612A3

    公开(公告)日:2002-04-04

    申请号:PCT/US0105511

    申请日:2001-02-22

    CPC classification number: G11B15/16

    Abstract: An apparatus and method for determining the position of magnetic tape within a magnetic tape cassette to ascertain whether the magnetic tape is in a rewound position within the cassette is provided. In a first aspect of the present invention, the magnetic tape cassette has two internal magnetic tape take-up reels. The magnetic tape stored on the tape-up reels is detected. The rewound status of the tape is determined by whether the magnetic tape is detected on only one reel or on both reels. In a second aspect of the present invention, a preselected amount of magnetic tape is detected within the magnetic tape cassette. The magnetic tape cassette is oriented and the position of the detected magnetic tape is determined relative to the orientation of the magnetic tape cassette. In a third aspect of the present invention, an electronically detectable member positioned in a known location of the cassette is detected. A preselected amount of magnetic tape within the cassette is detected. The time difference between the detection of the magnetic tape and the detection of the electronically detectable member is used to determine the position of the magnetic tape relative to the cassette. The electronically detectable member can be an electronic article surveillance marker.

    Abstract translation: 提供一种用于确定磁带盒内的磁带的位置以确定磁带是否处于盒内的重绕位置的装置和方法。 在本发明的第一方面中,磁带盒具有两个内部磁带卷取卷轴。 检测存储在磁带卷轴上的磁带。 磁带的倒带状态是通过仅在一个卷轴上还是在两个卷轴上检测磁带来确定的。 在本发明的第二方面中,在磁带盒内检测预选量的磁带。 磁带盒被取向,并且检测到的磁带的位置是相对于磁带盒的取向来确定的。 在本发明的第三方面中,检测位于盒的已知位置的电子可检测部件。 检测到盒内的预选量的磁带。 使用磁带的检测与电子可检测部件的检测之间的时间差来确定磁带相对于盒的位置。 电子可检测构件可以是电子物品监视标记。

    DEACTIVATABLE RADIO FREQUENCY SECURITY LABEL
    2.
    发明申请
    DEACTIVATABLE RADIO FREQUENCY SECURITY LABEL 审中-公开
    无效无线电频率安全标签

    公开(公告)号:WO2004023416A3

    公开(公告)日:2004-11-25

    申请号:PCT/US0327865

    申请日:2003-09-05

    CPC classification number: G08B13/242

    Abstract: A deactivation apparatus for an electronic article surveillance tag having a plurality of layers and an equivalent resonant circuit containing an inductor and a capacitor is provided. The apparatus includes: a capacitor formed by a pair of conductive capacitor plates separated apart by a dielectric layer; an inductor connected to each of the pair of capacitor plates where an electromagnetic field of a preselected frequency at a first magnitude impinging upon the tag causes the equivalent resonant circuit to resonate and produce a detectable response from the tag; and, an electrically weakened area in the dielectric layer between the pair of conductive capacitor plates where the electromagnetic field at a second magnitude higher than the first magnitude impinging upon the tag causes a conductive path through the weakened area electrically connecting the pair of capacitor plates together and deactivating the tag.

    Abstract translation: 提供一种具有多个层的电子物品监视标签的停用装置和包含电感器和电容器的等效谐振电路。 该装置包括:由电介质层隔开的一对导电电容器板形成的电容器; 连接到所述一对电容器板中的每一个的电感器,其中第一幅度的预选频率的电磁场照射在所述标签上,使所述等效谐振电路谐振并产生来自所述标签的可检测响应; 并且在一对导电电容器板之间的电介质层中的电弱化区域,其中第二幅度的第二幅度的电磁场照射在标签上,导致通过弱电区域的导电路径,将弱电区域电连接在一对电容器板上 并停用标签。

    PULSED POWER METHOD FOR INCREASED READ RANGE FOR A RADIO FREQUENCY IDENTIFICATION READER
    3.
    发明申请
    PULSED POWER METHOD FOR INCREASED READ RANGE FOR A RADIO FREQUENCY IDENTIFICATION READER 审中-公开
    脉冲功率法增加射频识别读取器的读取范围

    公开(公告)号:WO2004015613A3

    公开(公告)日:2004-07-08

    申请号:PCT/US0325112

    申请日:2003-08-11

    CPC classification number: G06K7/10217 G06K7/0008 G06K7/10019

    Abstract: A method to power a radio frequency identification (RFID) reader to increase multi­tag reading capability and increase the reading range of a passive tag without maximizing the continuous transmitted power level is provided. The RFID reader transmits a pulsed interrogation signal until an RFID tag response is received, and then switches to a continuous and pulsed power scheme. The continuous power emitted maintains the power supplied to the RFID tags so the tags will not reset due to loss of power. The pulsed signal permits reading the tags at longer ranges, especially when there is a plurality of tags in the area.

    Abstract translation: 提供了一种给射频识别(RFID)阅读器供电以增加多标签读取能力并增加无源标签的读取范围而不使连续发射功率水平最大化的方法。 RFID读取器发送脉冲询问信号,直到接收到RFID标签响应,然后切换到连续脉冲功率方案。 发射的连续功率保持提供给RFID标签的功率,使得标签不会由于功率损失而复位。 脉冲信号允许在较长范围读取标签,尤其是当该区域中存在多个标签时。

    BIAS CONFIGURATION FOR A MAGNETOMECHANICAL EAS MARKER
    4.
    发明申请
    BIAS CONFIGURATION FOR A MAGNETOMECHANICAL EAS MARKER 审中-公开
    用于磁铁矿物标记的偏置配置

    公开(公告)号:WO0193221A3

    公开(公告)日:2002-03-28

    申请号:PCT/US0117413

    申请日:2001-05-30

    CPC classification number: G08B13/2408 G08B13/2437 G08B13/244 G08B13/2482

    Abstract: A flat magnetomechanical electronic article surveillance marker is provided having a magnetostrictive resonator and a pair of bias magnets disposed on opposite sides and adjacent the resonator to bias the resonator with a magnetic field of a preselected field strength. The pair of bias magnets and the resonator are maintained substantially parallel and coplanar with each other to form a thin, flat EAS marker. During assembly of the marker, the bias magnets can be laterally adjustable to fine-tune the resonant frequency of the marker, and to compensate for material variability. Alternately, during assembly of the marker, the bias magnets can be adjustable in length to fine-tune the resonant frequency of the marker, and to compensate for material variability.

    Abstract translation: 提供了具有磁致伸缩共振器和设置在相对侧并且与谐振器相邻的一对偏置磁体的扁平磁力机电式电子物品监视标记,以用预选场强的磁场偏置谐振器。 该对偏置磁体和谐振器保持基本上平行并且彼此共面以形成薄的平坦的EAS标记。 在组装标记期间,偏置磁体可以横向调节,以微调标记的共振频率,并补偿材料的变异性。 或者,在组装标记期间,偏置磁体的长度可以是可调节的,以微调标记的谐振频率,并补偿材料的变化。

    ELECTRONIC ARTICLE SURVEILLANCE AND IDENTIFICATION DEVICE, SYSTEM, AND METHOD
    5.
    发明申请
    ELECTRONIC ARTICLE SURVEILLANCE AND IDENTIFICATION DEVICE, SYSTEM, AND METHOD 审中-公开
    电子文章监督和识别装置,系统和方法

    公开(公告)号:WO0175785A3

    公开(公告)日:2002-03-14

    申请号:PCT/US0110967

    申请日:2001-04-03

    CPC classification number: G06K19/0723 G06K7/0008

    Abstract: An electronic article surveillance and identification tag (1) and system is provided. The tag couples energy from a radiated energy source, which comprises first and second radiated signals. A mixing member (4) in the tag mixes the first and second signals to produce a sideband of the first signal, which is re-radiated by the tag. The mixing member is activated by a controller (6) that switches the mixing member into and out of the circuit according to a code stored within the controller that is associated with an article to be identified. As the mixing member is activated and deactivated, the sideband is radiated in a sequential manner according to the stored code. A receiver detects the sideband, and a decoder recovers the stored code according to the sequence of received sideband emissions from the tag.

    Abstract translation: 提供电子物品监控和识别标签(1)和系统。 该标签耦合来自辐射能量源的能量,其包括第一和第二辐射信号。 标签中的混合部件(4)混合第一和第二信号以产生被标签重新辐射的第一信号的边带。 混合构件由控制器(6)激活,控制器(6)根据存储在控制器内的与要识别的物品相关联的代码将混合构件切换到电路中并从电路切换。 当混合构件被激活和去激活时,边带按照存储的代码以顺序的方式被辐射。 接收机检测边带,并且解码器根据从标签接收的边带发射的顺序恢复存储的码。

    MULTI-BIT EAS MARKER POWERED BY INTERROGATION SIGNAL IN THE EIGHT Mhz BAND
    6.
    发明公开
    MULTI-BIT EAS MARKER POWERED BY INTERROGATION SIGNAL IN THE EIGHT Mhz BAND 失效
    DURCH ABFRAGESIGNAL IM 8-MHZ-BAND BETRIEBENES ELEKTRONISCHES MULTIBIT-ARTIKELÜBERWACHUNGSETIKETT

    公开(公告)号:EP0847569A4

    公开(公告)日:1998-12-09

    申请号:EP96929083

    申请日:1996-08-29

    CPC classification number: G08B13/2431

    Abstract: A multi-bit electronic article surveillance marker (10'') includes an antenna circuit (22) and is powered by an interrogation field generated by EAS detection equipment (8) and received by the marker's antenna circuit (22). The marker generates a multi-bit signal by selectively disturbing the interrogation field. The disturbances may be created by selectively short circuiting the marker's antenna circuit (22). All of the marker circuitry, including a coil (14'') that is part of the antenna circuitry (22), may be provided as circuit elements formed on a semiconductor integrated circuit substrate (20).

    Abstract translation: 多位电子物品监视标记(10“)包括天线电路(22),并由EAS检测设备(8)产生并由标记天线电路(22)接收的询问场供电。 该标记通过选择性地干扰询问场来产生多比特信号。 干扰可以通过选择性地短路标记器的天线电路(22)而产生。 包括作为天线电路(22)的一部分的线圈(14“)的所有标记电路可以被提供为形成在半导体集成电路衬底(20)上的电路元件。

    DEACTIVATABLE RADIO FREQUENCY SECURITY LABEL
    7.
    发明公开
    DEACTIVATABLE RADIO FREQUENCY SECURITY LABEL 审中-公开
    失活HIGH FREQUENCY安全标签

    公开(公告)号:EP1540614A4

    公开(公告)日:2005-10-12

    申请号:EP03794631

    申请日:2003-09-05

    CPC classification number: G08B13/242

    Abstract: A deactivation apparatus for an electronic article surveillance tag having a plurality of layers and an equivalent resonant circuit containing an inductor and a capacitor is provided. The apparatus includes: a capacitor formed by a pair of conductive capacitor plates separated apart by a dielectric layer; an inductor connected to each of the pair of capacitor plates where an electromagnetic field of a preselected frequency at a first magnitude impinging upon the tag causes the equivalent resonant circuit to resonate and produce a detectable response from the tag; and, an electrically weakened area in the dielectric layer between the pair of conductive capacitor plates where the electromagnetic field at a second magnitude higher than the first magnitude impinging upon the tag causes a conductive path through the weakened area electrically connecting the pair of capacitor plates together and deactivating the tag.

Patent Agency Ranking