Methods and apparatuses for identification
    1.
    发明申请
    Methods and apparatuses for identification 审中-公开
    识别方法和装置

    公开(公告)号:US20070013484A1

    公开(公告)日:2007-01-18

    申请号:US11521836

    申请日:2006-09-15

    IPC分类号: H04Q5/22

    摘要: An identification system includes a reader and one or more tags. The reader identifies tags such as radio frequency (RF) tags. The system divides a number space into n bins, wherein each bin is associated with m unique bits of the number space, and the number space contains the identification codes of the tags. A command is issued to test v bits of the number space. A response is received from a tag, wherein the response occurs when a first portion of an identification code of the tag matches the v bits of the number space, a timing of the response corresponds to a particular bin and m unique bits associated with the particular bin correspond to a second portion of the identification code.

    摘要翻译: 识别系统包括读取器和一个或多个标签。 读者识别标签,如射频(RF)标签。 该系统将数字空间划分为n个存储区,其中每个仓都与数字空间的m个唯一位相关联,并且数字空间包含标签的识别码。 发出一个命令来测试数字空间的v位。 从标签接收到响应,其中响应发生在标签的识别码的第一部分与数字空间的v位匹配时,响应的定时对应于特定的bin,并且与特定的相关联的m个唯一的位 bin对应于识别码的第二部分。

    Methods and apparatus for anti-collision for radio frequency communication
    2.
    发明申请
    Methods and apparatus for anti-collision for radio frequency communication 有权
    射频通信防碰撞方法和装置

    公开(公告)号:US20070279194A1

    公开(公告)日:2007-12-06

    申请号:US11891419

    申请日:2007-08-10

    IPC分类号: H04Q5/22

    摘要: An identification system includes a reader and one or more tags. The reader identifies tags such as radio frequency (RF) tags. The system divides a number space into n bins, wherein each bin is associated with m unique bits of the number space, and the number space contains the identification codes of the tags. A command is issued to test v bits of the number space. A response is received from a tag, wherein the response occurs when a first portion of an identification code of the tag matches the v bits of the number space, a timing of the response corresponds to a particular bin and m unique bits associated with the particular bin correspond to a second portion of the identification code.

    摘要翻译: 识别系统包括读取器和一个或多个标签。 读者识别标签,如射频(RF)标签。 该系统将数字空间划分为n个存储区,其中每个仓都与数字空间的m个唯一位相关联,并且数字空间包含标签的识别码。 发出一个命令来测试数字空间的v位。 从标签接收到响应,其中响应发生在标签的识别码的第一部分与数字空间的v位匹配时,响应的定时对应于特定的bin,并且与特定的相关联的m个唯一的位 bin对应于识别码的第二部分。

    SYSTEM AND METHOD FOR DISABLING DATA ON RADIO FREQUENCY IDENTIFICATION TAGS
    3.
    发明申请
    SYSTEM AND METHOD FOR DISABLING DATA ON RADIO FREQUENCY IDENTIFICATION TAGS 有权
    用于禁止无线电频率识别标签上的数据的系统和方法

    公开(公告)号:US20070018828A1

    公开(公告)日:2007-01-25

    申请号:US11535436

    申请日:2006-09-26

    IPC分类号: G08B13/14

    摘要: The disclosed embodiments of the present invention are used to permanently disable or destruct an RFID so that it is no longer possible to read some or all of the data encoded on the RFID tag. In one method for disabling data on a radio frequency identification (RFID) tag, an RFID tag is identified and its identity is confirmed. Verification that a prerequisite event has occurred is obtained, occurrence of which is required prior to disablement of the data. A destruct instruction is transmitted to the RFID tag. The RFID tag verifies that the destruct instruction is valid and disables the data upon verifying validity of the destruct instruction. The tag may disable the data by erasing the data, disabling the data, auto-destructing, or performing any operation that makes the data unreadable.

    摘要翻译: 本发明的所公开的实施例用于永久地禁用或破坏RFID,使得不再可能读取编码在RFID标签上的一些或全部数据。 在一种用于禁用射频识别(RFID)标签上的数据的方法中,识别RFID标签并确认其标识。 获得发生先决条件事件的验证,在数据禁用之前需要其发生。 毁坏指令被传送到RFID标签。 RFID标签验证破坏指令是否有效,并在验证破坏指令的有效性时禁止数据。 标签可以通过擦除数据,禁用数据,自动破坏或执行使数据不可读的任何操作来禁用数据。

    Integrated circuits with persistent data storage
    4.
    发明申请
    Integrated circuits with persistent data storage 有权
    具有持久数据存储的集成电路

    公开(公告)号:US20050242196A1

    公开(公告)日:2005-11-03

    申请号:US11153030

    申请日:2005-06-14

    CPC分类号: G06K19/07381 G06K19/0723

    摘要: The circuitry introduced in this invention selectively slows down the functioning of an electronic circuit by maintaining a particular state for a prolonged period of time. This circuitry is used not only to achieve the desired effect in maintaining security from electronic thieves trying to circumvent codes but also in other applications such as enabling a circuit to continue to function in the event of a brief loss of power. For example, in an RFID system, if a reader is frequency hopping, a tag loses power for as long as about 400 milliseconds when the reader changes to other frequencies. In a preferred embodiment, the disclosed circuitry is used in conjunction with a destruct sequence.

    摘要翻译: 在本发明中引入的电路通过长时间维持特定状态来选择性地减慢电子电路的功能。 该电路不仅用于在维护电子窃贼试图绕过代码的安全性方面实现期望的效果,而且在其他应用中,例如使电路在短暂的功率损失的情况下继续工作。 例如,在RFID系统中,如果读取器跳频,当读取器改变到其他频率时,标签失去长达约400毫秒的功率。 在优选实施例中,所公开的电路与破坏序列结合使用。

    Pixel circuits and methods for driving pixels
    5.
    发明授权
    Pixel circuits and methods for driving pixels 有权
    像素电路和驱动像素的方法

    公开(公告)号:US08446394B2

    公开(公告)日:2013-05-21

    申请号:US11759817

    申请日:2007-06-07

    申请人: Roger Stewart

    发明人: Roger Stewart

    IPC分类号: G06F3/038 G09G5/00

    摘要: A display driver according to one embodiment includes a digital to analog converter producing a current at a selected level an output of the digital to analog converter being coupleable to a data line of a display; and a voltage source being coupleable to the data line for precharging the data line. A method for precharging a data line of a display according to another embodiment includes determining a voltage level on a data line during a frame period; storing the voltage level; and prior to or during a subsequent frame period, precharging the data line voltage to a derivative of the stored voltage level. Additional systems and methods are claimed.

    摘要翻译: 根据一个实施例的显示驱动器包括产生选定电平的电流的数模转换器,数模转换器的输出可耦合到显示器的数据线; 以及电压源可耦合到数据线以预充电数据线。 根据另一实施例的用于对显示器的数据线进行预充电的方法包括在帧周期期间确定数据线上的电压电平; 存储电压电平; 并且在随后的帧周期之前或之后,将数据线电压预充电到所存储的电压电平的导数。 要求附加的系统和方法。

    Master tags
    6.
    发明申请
    Master tags 有权
    主标签

    公开(公告)号:US20060087407A1

    公开(公告)日:2006-04-27

    申请号:US10975226

    申请日:2004-10-27

    IPC分类号: H04Q5/22

    摘要: A method for creating a hierarchy of radio frequency identification (RFID) tags and the resultant system include associating each of a plurality of first RFID tags with an individual object of a plurality of objects, each first RFID tag storing identification information about the object with which it is associated. Identification information about each of the first RFID tags is stored in a second RFID tag that can physically accompany the first RFID tags during transportation.

    摘要翻译: 一种用于创建射频识别(RFID)标签的层级的方法,并且所得到的系统包括将多个第一RFID标签中的每一个与多个对象的单个对象相关联,每个第一RFID标签存储关于对象的标识信​​息, 它是关联的。 关于每个第一RFID标签的识别信息被存储在第二RFID标签中,其可以在运输期间物理地伴随第一RFID标签。

    Security system and method
    7.
    发明申请
    Security system and method 有权
    安全系统和方法

    公开(公告)号:US20050123133A1

    公开(公告)日:2005-06-09

    申请号:US10902683

    申请日:2004-07-28

    摘要: A first embodiment provides a process and system for simple, secure exchange of random numbers between two devices by combining a random number and a secret code (e.g., password) to generate a first challenge code, extracting the random number using the password at the second device, combining the first random number with a second random number, and returning the combination to the first device, which extracts the second random number from the second challenge code using its first random number. A CRC can be added to authenticate the sender. Another embodiment provides a system and method for generating a seedless pseudo-random number. The Yet another embodiment provides a system and method for generating data encryption coding with variable clocking.

    摘要翻译: 第一实施例提供了一种用于通过组合随机数和密码(例如密码)来简单,安全地交换两个设备之间的随机数的过程和系统,以产生第一质询代码,使用第二个密码的密码提取随机数 将所述第一随机数与第二随机数进行组合,并将所述组合返回到所述第一设备,所述第一设备使用其第一随机数从所述第二询问代码中提取所述第二随机数。 可以添加CRC来验证发件人。 另一实施例提供了一种用于产生无籽伪随机数的系统和方法。 另一个实施例提供了一种用于利用可变计时产生数据加密编码的系统和方法。

    Mask Dimensional Adjustment and Positioning System and Method
    9.
    发明申请
    Mask Dimensional Adjustment and Positioning System and Method 审中-公开
    面罩尺寸调整及定位系统及方法

    公开(公告)号:US20090311427A1

    公开(公告)日:2009-12-17

    申请号:US12483430

    申请日:2009-06-12

    IPC分类号: B05D1/32 C23C14/00 H05K3/00

    摘要: In a system and method of dimensional adjustment or positioning of an aperture mask for depositing a pattern of material on a substrate, an aperture mask is coupled to a frame such that the frame does not block one or more deposition apertures of the aperture mask. An external force applied to the frame causes the frame to move or bend and place the aperture mask in tension or compression thereby adjusting at least one dimension of the aperture mask or a position of at least one deposition aperture.

    摘要翻译: 在用于在衬底上沉积材料图案的孔径掩模的尺寸调整或定位的系统和方法中,孔径掩模耦合到框架,使得框架不阻挡孔径掩模的一个或多个沉积孔。 施加到框架的外力使得框架移动或弯曲并将孔眼掩模放置在张力或压缩状态,从而调整孔径掩模的至少一个尺寸或至少一个沉积孔的位置。

    PIXEL CIRCUITS AND METHODS FOR DRIVING PIXELS
    10.
    发明申请
    PIXEL CIRCUITS AND METHODS FOR DRIVING PIXELS 审中-公开
    像素电路和驱动像素的方法

    公开(公告)号:US20080062090A1

    公开(公告)日:2008-03-13

    申请号:US11759806

    申请日:2007-06-07

    申请人: Roger Stewart

    发明人: Roger Stewart

    IPC分类号: G09G3/30

    摘要: A current-driven display according to one embodiment includes a circuit producing a variable average output current during a frame period in response to a variable average input current received during a line period, wherein a ratio of high and low values of the output current is different than a ratio of high and low values of the input current. Additional systems and methods are claimed.

    摘要翻译: 根据一个实施例的电流驱动显示器包括响应于在行周期期间接收到的可变平均输入电流而在帧周期期间产生可变平均输出电流的电路,其中输出电流的高值和低值的比率不同 比输入电流的高低值的比率。 要求附加的系统和方法。