公开(公告)号：US08279047B2

公开(公告)日：2012-10-02

申请号：US11891419

申请日：2007-08-10

申请人： Curt Carrender ,  John M. Price ,  Frederick A. Nylander ,  John H. Rolin ,  Roger G. Stewart

发明人： Curt Carrender ,  John M. Price ,  Frederick A. Nylander ,  John H. Rolin ,  Roger G. Stewart

IPC分类号： H04Q5/22

CPC分类号： H04W74/00 ,  G06K7/0008 ,  G06K7/10049 ,  H04W24/00 ,  H04W52/0219 ,  Y02D70/166

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。

公开(公告)号：US07580378B2

公开(公告)日：2009-08-25

申请号：US11080379

申请日：2005-03-14

申请人： Curtis Lee Carrender ,  John M. Price

发明人： Curtis Lee Carrender ,  John M. Price

IPC分类号： H04B7/005

CPC分类号： G01S13/84 ,  G01S5/14

摘要： A method and system for locating an RF transponder based on phase differences between signals received from the RF transponder. The method includes receiving a signal from the transponder and calculating distance, relative movement, and position by comparing I-Q phase angle vectors of the signals. Global scroll commands can be used following receipt of signals at first and second frequencies to quickly determine distance.

摘要翻译： 一种用于基于从RF转发器接收的信号之间的相位差定位RF应答器的方法和系统。 该方法包括通过比较信号的I-Q相位角向量来从应答器接收信号并计算距离，相对运动和位置。 在第一和第二频率接收到信号之后可以使用全局滚动命令，以快速确定距离。

公开(公告)号：US07193504B2

公开(公告)日：2007-03-20

申请号：US10267924

申请日：2002-10-08

申请人： Curt Carrender ,  John M. Price ,  Frederick A. Nylander ,  John H. Rolin ,  Roger G. Stewart

发明人： Curt Carrender ,  John M. Price ,  Frederick A. Nylander ,  John H. Rolin ,  Roger G. Stewart

IPC分类号： H04Q5/22

CPC分类号： H04W74/00 ,  G06K7/0008 ,  G06K7/10049 ,  H04W24/00 ,  H04W52/0219 ,  Y02D70/166

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仓，并且与特定仓相关联的m个唯一的位对应于识别码的第二部分。

公开(公告)号：US06820601B1

公开(公告)日：2004-11-23

申请号：US10646210

申请日：2003-08-21

申请人： John M Price ,  Michael P Lindberg

发明人： John M Price ,  Michael P Lindberg

IPC分类号： F02M2506

CPC分类号： F01M13/023 ,  F02M25/06 ,  Y02T10/121

摘要： A positive crankcase ventilation valve for venting crankcase gases from a crankcase of an engine has a valve casing with an inlet adapted to communicate with the crankcase and an outlet adapted to communicate with an engine intake manifold for the flow of crankcase gases drawn from the crankcase through the valve casing by the engine manifold when the engine is running. A metering pintle reciprocates in the casing. A crossbar extends across the casing adjacent to the inlet. A spring presses the pintle against the crossbar when the engine is not running. The pintle is moved away from the crossbar against the pressure of the spring by the flow of the crankcase gases when the engine is running to meter the flow of the crankcase gases. The crossbar is a narrow roll pin so that if moisture between the roll pin and pintle freezes when the engine is not running, the frozen moisture will quickly break away when the engine is started.

摘要翻译： 用于从发动机的曲轴箱排出曲轴箱气体的正曲轴箱通风阀具有阀壳体，其具有适于与曲轴箱连通的入口和适于与用于从曲轴箱抽出的曲轴箱气体流动的发动机进气歧管连通的出口通过 当发动机运转时，发动机歧管的阀门壳体。 计量枢轴在套管中往复运动。 横杆延伸穿过与入口相邻的壳体。 当发动机不运行时，弹簧将叉子压在横梁上。 当发动机运行时，枢轴通过曲轴箱气体的流动克服弹簧的压力而远离横杆，以计量曲轴箱气体的流量。 横杆是一个狭窄的滚针，因此当发动机不运行时，如果滚针和枢轴之间的水分冻结，则当发动机启动时，冻结的水分将迅速断开。

公开(公告)号：US07068224B2

公开(公告)日：2006-06-27

申请号：US10800164

申请日：2004-03-12

申请人： Curt Carrender ,  Paul S. Drzaic ,  Robert Martin ,  Gregory P. Katterhagen ,  John M. Price

发明人： Curt Carrender ,  Paul S. Drzaic ,  Robert Martin ,  Gregory P. Katterhagen ,  John M. Price

IPC分类号： H01Q1/38

CPC分类号： H01Q1/22 ,  H01Q1/2216 ,  H01Q9/045 ,  H01Q9/0457

摘要： According to an embodiment of the invention, a patch antenna includes a patch coupled to a ground plane. The ground plane includes a first and second strip line. When the first strip line is activated, the antenna generates a signal having a first polarization, and when the second strip line is activated, the antenna generates a second polarization. The first polarization may be a horizontal polarization, and the second polarization may be a vertical polarization. The antenna may be incorporated into a radio frequency identification (RFID) interrogator, which may be used to read RFID tags attached to individual items.

摘要翻译： 根据本发明的实施例，贴片天线包括耦合到接地平面的贴片。 接地平面包括第一和第二带状线。 当第一带状线被激活时，天线产生具有第一极化的信号，并且当第二带状线被激活时，天线产生第二极化。 第一偏振可以是水平偏振，并且第二偏振可以是垂直偏振。 该天线可以被结合到射频识别（RFID）询问器中，该询问器可用于读取附着到各个物品的RFID标签。