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15 条记录 (耗时 0.026 秒)

    Active RF tag with wake-up circuit to prolong battery life
    11.
    发明授权
    Active RF tag with wake-up circuit to prolong battery life 有权
    主动RF标签具有唤醒电路，延长电池寿命

    公开(公告)号：US06593845B1

    公开(公告)日：2003-07-15

    申请号：US09407919

    申请日：1999-09-29

    申请人： Daniel J. Friedman ,  Thomas Anthony Cofino ,  Trieu C. Chieu

    发明人： Daniel J. Friedman ,  Thomas Anthony Cofino ,  Trieu C. Chieu

    IPC分类号： H04Q522

    CPC分类号： G06K19/0705 ,  G06K19/0701 ,  G06K19/0723 ,  G07C2009/00793

    摘要： An active RF transponder is provided with a wake-up circuit that wakes the RF transponder from a sleep state upon detection of an RF interrogating signal. The active RF transponder includes a battery, an antenna adapted to receive RF signals from an interrogator, and electronic circuitry providing the various RF transponder functions of sending/receiving signals and storing data. A first embodiment of the invention includes a wake-up circuit that periodically checks for the presence of an RF signal at the antenna. The wake-up circuit is coupled to the antenna and includes a switch adapted to selectively couple the battery to the electronic circuitry and provide electrical power thereto upon detection of the RF signals by the antenna. The wake-up circuit further comprises an oscillator providing a clock signal having a low duty cycle that defines intervals during which the antenna is sampled for presence of the RF signals (e.g., approximately 20 ns every 100 &mgr;s). A second embodiment of the RF transponder includes a wake-up circuit as in the first embodiment that is further adapted to detect a code sequence modulated in the RF signals. The code sequence is unique for a class of RF transponder, so the wake-up circuit can discriminate between interrogating signals. A third embodiment of the RF transponder includes a wake-up circuit that wakes the RF transponder upon detection of an RF signal that contains data within a desired band of frequencies. This embodiment enables the RF transponder to discriminate between RF signals that likely contain valid data and other RF noise. After the RF transponder has been waked, the wake-up circuit returns the RF transponder to a sleep state if valid data is not detected within a predetermined period of time.

    摘要翻译： 主动RF转发器具有唤醒电路，该唤醒电路在检测到RF询问信号时将RF应答器从睡眠状态唤醒。 主动RF转发器包括电池，适于从询问器接收RF信号的天线以及提供发送/接收信号和存储数据的各种RF应答器功能的电子电路。 本发明的第一实施例包括周期性地检查天线处的RF信号的存在的唤醒电路。 唤醒电路耦合到天线，并且包括开关，其适于在通过天线检测到RF信号时选择性地将电池耦合到电子电路并提供电力。 唤醒电路还包括振荡器，其提供具有低占空比的时钟信号，该时钟信号限定天线被采样以在RF信号的存在期间的间隔（例如，每100微秒大约20ns）。 RF转发器的第二实施例包括如第一实施例中的唤醒电路，其进一步适于检测在RF信号中调制的码序列。 代码序列对于一类RF转发器是唯一的，因此唤醒电路可以区分询问信号。 RF转发器的第三实施例包括唤醒电路，其在检测到包含期望频带中的数据的RF信号时唤醒RF应答器。 该实施例使得RF应答器能够区分可能包含有效数据的RF信号和其他RF噪声。 在RF应答器已经被唤醒之后，如果在预定时间段内没有检测到有效数据，则唤醒电路将RF应答器返回到睡眠状态。

    System and method for visually analyzing clickstream data with a parallel coordinate system
    12.
    发明授权
    System and method for visually analyzing clickstream data with a parallel coordinate system 失效
    用平行坐标系视觉分析点击流数据的系统和方法

    公开(公告)号：US06996536B1

    公开(公告)日：2006-02-07

    申请号：US09654202

    申请日：2000-09-01

    申请人： Thomas Anthony Cofino ,  Stephen H. Gomory ,  Juhnyoung Lee ,  Mark Edward Podlaseck

    发明人： Thomas Anthony Cofino ,  Stephen H. Gomory ,  Juhnyoung Lee ,  Mark Edward Podlaseck

    IPC分类号： G06F17/60

    CPC分类号： G06Q30/06 ,  G06Q30/0633 ,  G06Q30/0641 ,  Y10S707/99943

    摘要： A computer system and method that provides one or more visualizations to one or more users of a network application. The computer executes a sessionization process that receives one or more Web server logs from one or more online stores, and generates one session table for each session found from requests recorded in Web server logs. A shopping step finder process then receives one or more session tables and generates one micro-conversion table for each given session table. Finally, a visualization process receives one or more of the micro-conversion tables and generates one or more micro-conversion visualizations of one or more micro-conversions.

    摘要翻译： 一种为网络应用的一个或多个用户提供一个或多个可视化的计算机系统和方法。 计算机执行从一个或多个在线商店接收一个或多个Web服务器日志的会话过程，并且根据记录在Web服务器日志中的请求，为每个会话生成一个会话表。 然后，购物步骤查找器进程接收一个或多个会话表，并为每个给定的会话表生成一个微转换表。 最后，可视化过程接收一个或多个微转换表，并生成一个或多个微转换的一个或多个微转换可视化。

    Business method for comparison shopping with dynamic pricing over a network
    13.
    发明授权
    Business method for comparison shopping with dynamic pricing over a network 有权
    通过网络与动态定价进行比较购物的商业方法

    公开(公告)号：US07376613B1

    公开(公告)日：2008-05-20

    申请号：US09556725

    申请日：2000-04-21

    申请人： Thomas Anthony Cofino ,  Juhnyoung Lee ,  Mark Edward Podlaseck

    发明人： Thomas Anthony Cofino ,  Juhnyoung Lee ,  Mark Edward Podlaseck

    IPC分类号： G06Q30/00

    CPC分类号： G06Q30/02 ,  G06Q20/10 ,  G06Q30/08 ,  G06Q40/025 ,  G06Q40/04 ,  G06Q50/188

    摘要： A user is provided with access to a preferred online store through one or more networks. The online store has one or more products each with a product description and a price. The product description and price are provided to the user. A computer receives one or more selection requests for one or more of the products (selected products) from the user. The user is provided with one or more bid conditions for the selected product which the user selects from. The user is then provided one or more second bids. Each of the second bids originates from one or more other stores that participated in an auction and each of the second bids conforms to the bid conditions selected by the user.

    摘要翻译： 通过一个或多个网络向用户提供对首选在线商店的访问。 网上商店有一个或多个产品，每个都有产品描述和价格。 产品描述和价格提供给用户。 计算机从用户接收一个或多个产品（所选产品）的选择请求。 向用户提供用户从中选择的所选产品的一个或多个出价条件。 然后，向用户提供一个或多个第二投标。 每个第二投标来自参与拍卖的一个或多个其他商店，并且每个第二投标符合用户选择的投标条件。