Method of scrambling and descrambling data in a communication system
    2.
    发明授权
    Method of scrambling and descrambling data in a communication system 有权
    在通信系统中对数据进行加扰和解扰的方法

    公开(公告)号:US07099469B2

    公开(公告)日:2006-08-29

    申请号:US09978890

    申请日:2001-10-17

    CPC classification number: H04L1/0001 H04L9/0618 H04L2209/08 H04L2209/12

    Abstract: A scrambling method (510) divides a set of data (200) into a first portion and a second portion. A first scrambling method is performed on the first portion of the set of data to create a scrambled first portion of the data. The second portion of the set of data is modified with the scrambled first portion of the set of data to create a modified second portion of the set of data. A second scrambling method is performed on the modified second portion of the set of data to create a scrambled second portion of the set of data. The scrambled first portion of the set of data is modified with the scrambled second portion of the set of data to create a scrambled set of data (220). A descrambling method (520) reverses the scrambling method (510) to create a descrambed set of data (200).

    Abstract translation: 加扰方法(510)将一组数据(200)划分为第一部分和第二部分。 对该组数据的第一部分执行第一加扰方法以创建数据的加扰的第一部分。 该组数据的第二部分用该组数据的加扰的第一部分进行修改以创建该组数据的经修改的第二部分。 对该组数据的修改的第二部分执行第二加扰方法,以创建该组数据的加扰的第二部分。 数据集合的加扰的第一部分用数据集合的加扰的第二部分进行修改以产生加扰的数据集(220)。 解扰方法(520)反转加扰方法(510)以创建解组的数据集(200)。

    Method and apparatus for data backup and restoration in a portable data device
    3.
    发明授权
    Method and apparatus for data backup and restoration in a portable data device 有权
    在便携式数据设备中进行数据备份和恢复的方法和装置

    公开(公告)号:US06317755B1

    公开(公告)日:2001-11-13

    申请号:US09360571

    申请日:1999-07-26

    Abstract: A portable data device (300) having a memory (302) is provided. The memory (302) is segmented into a plurality of sectors (304-312). A backup memory buffer (312) and a plurality of applications (304-310) are programmed into the plurality of sectors, wherein the backup memory buffer (312) is jointly used by the plurality of applications (304-310). A valid state of data is stored in the backup memory buffer (312) prior to performing a transaction for a first application (304). The valid state of data is restored in the first application (304) upon power up of the portable data device (300) in an event the transaction is terminated prior to completion, wherein the step of restoring is independent of a next application in which a next transaction is performed.

    Abstract translation: 提供具有存储器(302)的便携式数据设备(300)。 存储器(302)被分割成多个扇区(304-312)。 备份存储器缓冲器(312)和多个应用程序(304-310)被编程到多个扇区中,其中备用存储器缓冲器(312)由多个应用程序共同使用(304-310)。 在对第一应用执行交易之前,将有效的数据状态存储在备份存储器缓冲器(312)中(304)。 在事务在完成之前被终止的情况下,在便携式数据设备(300)上电时,在第一应用(304)中恢复数据的有效状态,其中恢复步骤独立于下一个应用 执行下一个事务。

    Method of communication in a radio frequency identification system
    5.
    发明授权
    Method of communication in a radio frequency identification system 失效
    射频识别系统中的通信方法

    公开(公告)号:US06763996B2

    公开(公告)日:2004-07-20

    申请号:US09955345

    申请日:2001-09-18

    CPC classification number: G06K19/0723 G06K7/0008

    Abstract: In accordance with the present invention, a radio frequency identification (RFID) device comprises a plurality of data fields. The RFID device transmits a data symbol from a data field, receives an acknowledgement symbol, and compares the transmitted data symbol to the received acknowledgement symbol. The RFID device repeats these steps until data transmission is complete as long as each transmitted data symbol is equivalent to a corresponding received acknowledgement symbol; otherwise, the RFID device maintains the data field from which the last data symbol was transmitted, and temporarily suspends data transmission. When the RFID receives a request for RFID devices temporarily suspended in a given data field to resume data transmission, if the given data field in the request is equivalent to the data field that was maintained, the RFID device repeats the steps above starting with the first symbol in the data field that was maintained.

    Abstract translation: 根据本发明,射频识别(RFID)设备包括多个数据字段。 RFID设备从数据字段发送数据符号,接收确认符号,并将发送的数据符号与接收到的确认符号进行比较。 RFID设备重复这些步骤直到数据传输完成,只要每个发送的数据符号等同于相应的接收的确认符号; 否则,RFID设备维护发送最后一个数据符号的数据字段,并暂时暂停数据传输。 当RFID接收到暂时停留在给定数据字段中的RFID设备的请求以恢复数据传输时,如果请求中的给定数据字段等同于维护的数据字段,则RFID设备重复上述步骤,从第一 在维护的数据字段中的符号。

    Portable data device efficiently utilizing its available power and method thereof
    6.
    发明授权
    Portable data device efficiently utilizing its available power and method thereof 有权
    便携式数据设备有效利用其可用功率及其方法

    公开(公告)号:US06466126B2

    公开(公告)日:2002-10-15

    申请号:US09765684

    申请日:2001-01-19

    Abstract: A portable data device (400) having a power controller (430), a clock generator (428) and a digital circuit (432). The power controller (430) has an output signal. The output signal is representative of available power. The clock generator (428) is coupled to the output signal of the power controller (430) for generating a variable clock rate corresponding to the output signal. The digital circuit (432) is coupled to the clock generator (428), and the digital circuit (432) is controlled by the variable clock rate.

    Abstract translation: 一种具有功率控制器(430),时钟发生器(428)和数字电路(432)的便携式数据设备(400)。 功率控制器(430)具有输出信号。 输出信号代表可用功率。 时钟发生器(428)耦合到功率控制器(430)的输出信号,用于产生对应于输出信号的可变时钟速率。 数字电路(432)耦合到时钟发生器(428),数字电路(432)由可变时钟速率控制。

    Method and apparatus for selectively activating radio frequency identification tags that are in close proximity
    8.
    发明授权
    Method and apparatus for selectively activating radio frequency identification tags that are in close proximity 有权
    用于选择性地激活非常接近的射频识别标签的方法和装置

    公开(公告)号:US06392544B1

    公开(公告)日:2002-05-21

    申请号:US09669289

    申请日:2000-09-25

    CPC classification number: G06K7/10346 G06K7/0008 G06K7/10019 G06K7/10316

    Abstract: A radio frequency identification exciter (200) includes a plurality of antenna elements (122a-i) that are spaced to define active areas (130a-e). A matrix switch (202) flexibly connects the plurality of antenna elements to an exciter circuit (203). Independent switches (204a-i) are selectively switched such that an electric field is generated between at least two antenna elements whereby radio frequency identification tags (132) in the vicinity of the two antenna elements are capacitively powered to exchange data with the exciter. Antenna elements other than the at least two antenna elements may be selectively coupled to a signal from the exciter circuit that inhibits activation of radio frequency identification tags in the vicinity of those antenna elements. The matrix switch preferably comprises polymer-based circuits.

    Abstract translation: 射频识别激励器(200)包括间隔开以限定有源区域(130a-e)的多个天线元件(122a-i)。 矩阵开关(202)将多个天线元件灵活地连接到激励器电路(203)。 选择性地切换独立开关(204a-i),使得在至少两个天线元件之间产生电场,由此在两个天线元件附近的射频识别标签(132)被电容地供电以与激励器交换数据。 除了至少两个天线元件之外的天线元件可以选择性地耦合到来自激励器电路的信号,该信号禁止在那些天线元件附近激活射频识别标签。 矩阵开关优选地包括基于聚合物的电路。

    Capacitively powered radio frequency identification device
    9.
    发明授权
    Capacitively powered radio frequency identification device 有权
    电容式射频识别装置

    公开(公告)号:US06384727B1

    公开(公告)日:2002-05-07

    申请号:US09630987

    申请日:2000-08-02

    Abstract: A capacitively powered radio frequency identification device (10) comprises a substrate (12), a conductive pattern (14, 16) and a circuit (18). The substrate (12) has a first surface and a second surface. The conductive pattern is formed on the first surface of the substrate (12). The conductive pattern has a first electrode (14) and a second electrode (16). The first and second electrodes (14, 16) are isolated from each other by a non-conductive region disposed therebetween. The circuit (18) comprises polymers. The circuit (18) is electrically coupled to the first electrode (14) and the second electrode (16).

    Abstract translation: 电容供电的射频识别装置(10)包括基板(12),导电图案(14,16)和电路(18)。 衬底(12)具有第一表面和第二表面。 导电图案形成在基板(12)的第一表面上。 导电图案具有第一电极(14)和第二电极(16)。 第一和第二电极(14,16)通过设置在它们之间的非导电区域彼此隔离。 电路(18)包括聚合物。 电路(18)电耦合到第一电极(14)和第二电极(16)。

    Method and Apparatus to Facilitate Depicting an Object in Combination with an Accessory
    10.
    发明申请
    Method and Apparatus to Facilitate Depicting an Object in Combination with an Accessory 审中-公开
    方法和装置,以便于与附件组合描绘物体

    公开(公告)号:US20090033667A1

    公开(公告)日:2009-02-05

    申请号:US11832965

    申请日:2007-08-02

    CPC classification number: G06T19/00 G06T2210/16

    Abstract: At a personally portable wireless two-way communicator (800), one can provide (101) an avatar as corresponds to a given object and then capture (102) an image as corresponds to an accessory for that given object. That image can be used (103) to determine corresponding metadata for the accessory which metadata is then used (104) to determine a virtual visual rendering of the accessory. One can then visually display (105) the avatar in combination with the virtual visual rendering of the accessory to thereby provide an image that depicts how the given object and the accessory will appear in combination with one another.

    Abstract translation: 在个人便携式无线双向通信器(800)中,可以提供(101)与给定对象相对应的化身,然后捕获(102)对应于该给定对象的附件的图像。 可以使用该图像(103)来确定附件的相应元数据,然后使用元数据(104)来确定附件的虚拟视觉呈现。 然后,可以与辅助部件的虚拟视觉呈现相结合地可视地显示(105)化身,从而提供描绘给定对象和附件如何彼此组合的图像。

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