Multi-reader coordination in RFID system
    2.
    发明申请
    Multi-reader coordination in RFID system 有权
    RFID系统中多读卡器协调

    公开(公告)号:US20070001813A1

    公开(公告)日:2007-01-04

    申请号:US11171443

    申请日:2005-07-01

    IPC分类号: H04Q5/22

    CPC分类号: G06K7/0008 G06K7/10356

    摘要: A method of operating a plurality of Radio Frequency Identification (RFID) readers includes operating the readers according to a spatial-division and time-division synchronization schedule. Each reader may be associated with a reader group, and the schedule may specify a duration of time that all of the readers in a group may be active. Readers in different reader groups may be scheduled independent of readers in other reader groups.

    摘要翻译: 一种操作多个射频识别(RFID)读取器的方法包括根据空间划分和时分同步调度操作读取器。 每个读取器可以与读取器组相关联,并且调度可以指定组中的所有读取器可能处于活动状态的持续时间。 不同阅读器组中的读者可能会安排与其他阅读器组中的读者无关。

    Dynamic holographic video with haptic interaction
    3.
    发明授权
    Dynamic holographic video with haptic interaction 有权
    具有触觉相互作用的动态全息影像

    公开(公告)号:US06211848B1

    公开(公告)日:2001-04-03

    申请号:US09252591

    申请日:1999-02-09

    IPC分类号: G09G500

    摘要: A user is able to interact with and modify an electronic holographic image using a force-feedback (or haptic) device, which is capable of sensing and reporting the 3D position of its hand-held stylus and “displaying” appropriate forces to the user. Thus, a user can feel and modify specified shapes in the haptic workspace. The haptic workspace is precisely registered with the free-standing, spatial image displayed by a holographic video (holovideo) system. In the coincident visuo-haptic workspace, a user can see, feel, and interact with synthetic objects that exhibit many of the properties one expects of real ones, and the spatial display enables synthetic objects to become a part of the user's manipulatory space.

    摘要翻译: 用户能够使用能够感测和报告其手持式笔的3D位置并且向用户“显示”适当的力的力 - 反馈(或触觉)装置来与电子全息图像进行交互和修改。 因此,用户可以感觉和修改触觉工作空间中的指定形状。 触觉工作空间与由全息视频(holovideo)系统显示的独立的空间图像精确地对齐。 在巧合的视觉触觉工作空间中,用户可以看到,感觉和与表现出实际需要的许多属性的合成对象交互,并且空间显示使合成对象成为用户操纵空间的一部分。

    METHODS AND APPARATUS FOR ENHANCING PRIVACY OF OBJECTS ASSOCIATED WITH RADIO-FREQUENCY IDENTIFICATION TAGS
    4.
    发明申请
    METHODS AND APPARATUS FOR ENHANCING PRIVACY OF OBJECTS ASSOCIATED WITH RADIO-FREQUENCY IDENTIFICATION TAGS 审中-公开
    用于增强与无线电频率识别标签相关的对象隐私的方法和装置

    公开(公告)号:US20080181398A1

    公开(公告)日:2008-07-31

    申请号:US11627781

    申请日:2007-01-26

    申请人: Ravikanth Pappu

    发明人: Ravikanth Pappu

    IPC分类号: H04L9/28 H04L9/00

    CPC分类号: H04L9/085 H04L2209/805

    摘要: Encoding radio-frequency identification (RFID) tags, each of the RFID tags having an tag identifier, t, and associated with a corresponding item, in a manner that preserves privacy of information associated with the item includes the steps of: generating a key, k; encrypting each of a plurality of tag identifiers, t, using the key, k to produce a plurality of encrypted tag identifiers; selecting a threshold value, T; dividing the key, k, into a plurality of key shares, n, such that retrieval of T or more key shares allows the key, k, to be reconstituted; and encoding each of a plurality of RFID tags with a concatenation of the encrypted tag identifier and one of the key shares, and any other data useful to reconstitute the key k.

    摘要翻译: 编码射频识别(RFID)标签,每个RFID标签具有标签标识符t并且与对应的项目相关联,以保持与该项目相关联的信息的隐私的方式包括以下步骤:产生密钥, k; 使用密钥k加密多个标签标识符t中的每一个,以产生多个加密的标签标识符; 选择一个阈值T; 将密钥k划分为多个密钥共享,n,使得T或更多个密钥共享的检索允许密钥k被重构; 并且利用加密的标签标识符与密钥共享之一的级联以及用于重构密钥k的任何其他数据来编码多个RFID标签中的每一个。

    CO-LOCATED RADIO-FREQUENCY IDENTIFICATION FIELDS
    6.
    发明申请
    CO-LOCATED RADIO-FREQUENCY IDENTIFICATION FIELDS 审中-公开
    协调无线电频率识别领域

    公开(公告)号:US20120075072A1

    公开(公告)日:2012-03-29

    申请号:US13240173

    申请日:2011-09-22

    申请人: Ravikanth Pappu

    发明人: Ravikanth Pappu

    IPC分类号: G06K7/01

    摘要: The present disclosure is directed to methods and systems for co-locating an Radio Frequency Identification (RFID) signal field with a representation perceptible by one or more human senses. A user interface may accessing a representation of a signal field stored in a memory element. The representation may include a plurality of data points each recording a value of a characteristic of the signal field at a respective physical position. Based on the accessed data points, the user interface may provide a human-perceptible representation of the signal field to a user. The human-perceptible representation may facilitate user interactions with the signal field using a RFID device. An interactivity engine may detect an interaction between the RFID device and the signal field. In some embodiments, the interactivity engine may generate an action based on the detected interaction.

    摘要翻译: 本公开涉及用于将射频识别(RFID)信号字段与用一种或多种人类感觉可察觉的表示共同定位的方法和系统。 用户界面可以访问存储在存储器元件中的信号字段的表示。 该表示可以包括多个数据点,每个数据点在相应的物理位置处记录信号场的特性的值。 基于访问的数据点,用户界面可以向用户提供信号字段的人类可感知的表示。 人类可感知的表示可以利用RFID设备来促进用户与信号场的交互。 交互引擎可以检测RFID设备和信号场之间的交互。 在一些实施例中,交互引擎可以基于检测到的相互作用生成动作。

    RADIO-FREQUENCY IDENTIFICATION TILES
    7.
    发明申请
    RADIO-FREQUENCY IDENTIFICATION TILES 审中-公开
    无线电频率识别台

    公开(公告)号:US20120062366A1

    公开(公告)日:2012-03-15

    申请号:US13228005

    申请日:2011-09-08

    IPC分类号: G06K7/01

    CPC分类号: G06K7/10009

    摘要: The present disclosure is directed to methods and systems for a modular, configurable radio frequency identification (RFID) system receiving RFID communications and packaged in a casing for incorporation into a host object. The RFID system may interact with other systems based on the received RFID communications, and may include an antenna. An RFID receiver may receive RFID communications from an RFID tag via the antenna. A memory element may store a configuration for the system, which may be specific to a context of the host object and specify interactions with a second system in response to the received RFID communications. A processor may retrieve from the memory element the configuration responsive to receiving the RFID communications. A transmitter may transmit, via a second communications protocol, a request to the second system based on the interactions specified by the retrieved configuration.

    摘要翻译: 本公开涉及用于接收RFID通信并被封装在壳体中以结合到主机对象中的模块化可配置射频识别(RFID)系统的方法和系统。 RFID系统可以基于所接收的RFID通信与其他系统交互,并且可以包括天线。 RFID接收器可以经由天线从RFID标签接收RFID通信。 存储器元件可以存储用于系统的配置,其可以是主机对象的上下文特定的,并且响应于所接收的RFID通信指定与第二系统的交互。 处理器可以从存储器元件检索响应于接收RFID通信的配置。 发射机可以经由第二通信协议将基于所检索配置指定的交互的请求发送到第二系统。