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1. 发明申请

WO2008094506A1 MULTIDIMENSIONAL SIEVING FOR RFID TAG FIELDS 审中-公开
标题翻译： RFID标签领域的多维度
公开(公告)号：WO2008094506A1
公开(公告)日：2008-08-07
申请号：PCT/US2008/001091
申请日：2008-01-26
申请人： HOLLISTER, Allen , BARTA, Gary , ARMSTRONG, John, T.
发明人： HOLLISTER, Allen , BARTA, Gary , ARMSTRONG, John, T.
IPC分类号： G08B26/00
CPC分类号： G06K7/0008 , G06K7/10029 , G06K7/10069 , G06K7/10217 , G06K7/10356
摘要： A system comprising an RFID Reader and an array of RFID Tags, where the tags have the ability to measure physical signal properties such as FM deviation and Received Signal Strength as examples and use these measurements to create a means to refrain from responding to the Reader, unless the measured values fall inside a range determined by a built in algorithm or decision tree or by the Reader and transmitted to the array of Tags in an outbound message. The system may also use non-physical parameters, including tokens sent by the Interrogator/Reader to the Tag field. Moreover, physical parameters may be divided into maskable and unmaskable parameters. Signal frequency is not maskable by the environment, for example, but signal amplitude and phase are maskable by the environment during propagation.. Additionally, the number, the nature and the range of each Multidimensional Variable are set by the Interrogator at the start of a session. In this way, foreknowledge or good estimates of the tag population will lead to higher efficiency operation
摘要翻译：一种包括RFID读取器和RFID标签阵列的系统，其中标签具有测量诸如FM偏差和接收信号强度之类的物理信号特性的能力，并且使用这些测量来创建避免对Reader的响应的手段，除非测量值落在由内置算法或决策树或读者确定的范围内，并传输到出站消息中的标签阵列。该系统还可以使用非物理参数，包括由询问器/读取器发送到标签字段的令牌。此外，物理参数可以分为可屏蔽和不可屏蔽的参数。信号频率不能被环境屏蔽，例如信号幅度和相位在传播期间被环境掩蔽。另外，每个多维变量的数量，性质和范围由询问器在一个会话。以这种方式，对标签人群的预知或良好的估计将导致更高的效率操作

2. 发明申请

WO2008094461A3 RADIO FREQUENCY IDENTIFICATION SYSTEMS USING ALOHA NETWORKS 审中-公开
公开(公告)号：WO2008094461A3
公开(公告)日：2008-08-07
申请号：PCT/US2008/000992
申请日：2008-01-25
申请人： HOLLISTER, Allen , BARTA, Gary , ARMSTRONG, John, T.
发明人： HOLLISTER, Allen , BARTA, Gary , ARMSTRONG, John, T.
IPC分类号： H04Q5/22
摘要： A method is presented for taking an unknown field of transponders and converting them to a slotted Aloha architecture and increasing the throughput allowed by the slotted Aloha architecture by using several different techniques including shortening the time of empty and collided timeslots, implementing a unique random number generator that creates random numbers that are uniquely based on an individual tags location, and on an ability to estimate the total number of transponders and control the offered rate such that throughput is always maximum. While these techniques work well together and produce the most benefit when used together, they are independent techniques and any one may be used alone without the others. Thus a system might use the estimated total number of transponders technique and the timeslot shortening technique, but use a standard random number generator rather one based on transponder location with only a small decrease in overall performance.

3. 发明申请

WO2008094461A2 RADIO FREQUENCY IDENTIFICATION SYSTEMS USING ALOHA NETWORKS 审中-公开
标题翻译：使用ALOHA网络的无线电频率识别系统
公开(公告)号：WO2008094461A2
公开(公告)日：2008-08-07
申请号：PCT/US2008000992
申请日：2008-01-25
申请人： HOLLISTER ALLEN , BARTA GARY , ARMSTRONG JOHN T
发明人： HOLLISTER ALLEN , BARTA GARY , ARMSTRONG JOHN T
CPC分类号： H04L61/2046 , H04L29/12264 , H04L67/12
摘要： A method is presented for taking an unknown field of transponders and converting them to a slotted Aloha architecture and increasing the throughput allowed by the slotted Aloha architecture by using several different techniques including shortening the time of empty and collided timeslots, implementing a unique random number generator that creates random numbers that are uniquely based on an individual tags location, and on an ability to estimate the total number of transponders and control the offered rate such that throughput is always maximum. While these techniques work well together and produce the most benefit when used together, they are independent techniques and any one may be used alone without the others. Thus a system might use the estimated total number of transponders technique and the timeslot shortening technique, but use a standard random number generator rather one based on transponder location with only a small decrease in overall performance.
摘要翻译：提出了一种方法，用于采集未知领域的转发器并将其转换为时隙阿罗哈架构，并通过使用多种不同技术来增加时隙阿罗哈架构允许的吞吐量，包括缩短空时隙和冲突时隙的时间，实现唯一的随机数发生器它可根据单个标签位置创建唯一的随机数字，并能够估算发送应答器的总数并控制所提供的速率，从而使吞吐量始终达到最高。虽然这些技术可以很好地协同工作并且在一起使用时产生最大的收益，但它们是独立的技术，任何一种技术都可以单独使用，而无需其他技术。因此，一个系统可能使用估计的转发器技术总数和时隙缩短技术，但是使用标准的随机数发生器而不是基于转发器位置的发生器，总体性能只有很小的下降。

4. 发明申请

WO9917395A3 QUADRIFILAR ANTENNA 审中-公开
标题翻译：四边形天线
公开(公告)号：WO9917395A3
公开(公告)日：1999-06-17
申请号：PCT/US9819993
申请日：1998-09-24
申请人： MAGELLAN CORP , BARTA GARY S , CASLOW SCOTT A
发明人： BARTA GARY S , CASLOW SCOTT A
IPC分类号： H01Q1/38 , H01Q11/08 , H01Q1/36
CPC分类号： H01Q11/08
摘要： A quadrifilar antenna for use in satellite communications comprises four conductive elements arranged to define two separate helical pairs, one slightly differing in electrical length than the other, defined by a cylinder of constant radius supported by itself or by a cylindrical non-conductive substrate. The two separate helical pairs are connected to each other in such a way as to constitute the impedance matching, electrical phasing, coupling and power distribution for the antenna. In place of a conventional balun, the antenna is fed at a tap point on one of the conductive elements determined by an impedance matching network which connects the antenna to a transmission line. The matching network can be built with distributed or lumped electrical elements and can be incorporated into the design of the antenna.
摘要翻译：用于卫星通信的四线天线包括四个导电元件，其被布置成限定两个单独的螺旋副，一个电气长度稍微不同于另一个，由自身支撑的圆柱或由圆柱形非导电衬底支撑的恒定半径的圆柱限定。两个分离的螺旋对以这样的方式相互连接，以构成天线的阻抗匹配，电相位，耦合和功率分配。取代传统的平衡 - 不平衡变换器，天线在由阻抗匹配网络确定的导电元件之一的分接点处馈送，阻抗匹配网络将天线连接到传输线。匹配网络可以用分布式或集中式电气元件构建，并且可以结合到天线的设计中。

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