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公开(公告)号：US08417195B2
公开(公告)日：2013-04-09
申请号：US12066355
申请日：2006-09-08
IPC分类号： H04B1/04
CPC分类号： H03C3/12 , H03C3/06 , H03H2210/012 , H03J2200/10 , H04B5/0031 , H04B5/0037 , H04B5/0075
摘要： The present invention relates to the field of data transmission. The invention has application to amplifiers, the transmission of data modulated signals, filters and/or matching circuits connected between an amplifier and a load, radio transmitters, the transmission of data modulated radio signals, filters and/or matching circuits used between a transmitter's power amplifier and an antenna and the field of Radio Frequency Identification (RFID), such as in the transmission of data between a tag and an interrogator. The present invention enables the transmission of phase modulated signals, by adjusting a device's tuning to substantially match the instantaneous frequency of the phase modulated signal.
摘要翻译： 本发明涉及数据传输领域。 本发明适用于放大器，数据调制信号的传输，连接在放大器和负载之间的滤波器和/或匹配电路，无线电发射机，数据调制无线电信号的传输，在发射机功率之间使用的滤波器和/或匹配电路 放大器和天线以及射频识别（RFID）领域，例如在标签和询问器之间传输数据。 本发明能够通过调整装置的调谐以使相位调制信号的瞬时频率基本匹配来实现相位调制信号的发送。
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公开(公告)号：US20090010360A1
公开(公告)日：2009-01-08
申请号：US12066355
申请日：2006-09-08
IPC分类号： H04L27/20
CPC分类号： H03C3/12 , H03C3/06 , H03H2210/012 , H03J2200/10 , H04B5/0031 , H04B5/0037 , H04B5/0075
摘要： The present invention relates to the field of data transmission. The invention has application to amplifiers, the transmission of data modulated signals, filters and/or matching circuits connected between an amplifier and a load, radio transmitters, the transmission of data modulated radio signals, filters and/or matching circuits used between a transmitter's power amplifier and an antenna and the field of Radio Frequency Identification (RFID), such as in the transmission of data between a tag and an interrogator. The present invention enables the transmission of phase modulated signals, by adjusting a device's tuning to substantially match the instantaneous frequency of the phase modulated signal.
摘要翻译： 本发明涉及数据传输领域。 本发明适用于放大器，数据调制信号的传输，连接在放大器和负载之间的滤波器和/或匹配电路，无线电发射机，数据调制无线电信号的传输，在发射机功率之间使用的滤波器和/或匹配电路 放大器和天线以及射频识别（RFID）领域，例如在标签和询问器之间传输数据。 本发明能够通过调整装置的调谐以使相位调制信号的瞬时频率基本匹配来实现相位调制信号的发送。
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公开(公告)号：US08810371B2
公开(公告)日：2014-08-19
申请号：US12996035
申请日：2009-06-11
CPC分类号： G06K7/0008 , G06K7/10346
摘要： Where a single cable conveys bidirectional RF signals and bidirectional data using a data carrying DC power signal where the RF signals and the bidirectional data carrying DC power signal are separated using frequency selective networks. Alternatively a single cable conveys bidirectional RF signals and bidirectional data using a modulated RF data signal where the RF signals and the bidirectional modulated RF data signal are separated using frequency selective networks. A array of switchable antennas where RF switching elements are integral to the antennas is connected to the single cable and is powered by and communicated with through the cable. The array of switchable antennas can be arranged to produce an interrogation field in any of one, two or three dimensions by the antennas being arranged to provide for a series of parallel spaced conductors through which currents are sequentially switched in order to produce both tangential and normal magnetic field components. The spatial relationship of the sequentially switched currents is chosen to ensure that at different times a tangential and a normal magnetic field are produced at the same location. The conductors are preferably arranged in a planar fashion and the tangential and normal magnetic fields are produced above the planar surface. A single layer of parallel spaced conductors provides for one or two dimensional operations. Adding a second parallel layer of orthogonally oriented parallel spaced conductors provides three dimensional operations where currents are sequentially switched in both layers.
摘要翻译： 其中单个电缆使用携带DC电力信号的数据传送双向RF信号和双向数据，其中RF信号和携带DC电力信号的双向数据使用频率选择网络分离。 或者，单个电缆使用调制的RF数据信号来传送双向RF信号和双向数据，其中RF信号和双向调制的RF数据信号使用频率选择网络分离。 其中RF开关元件与天线成一体的可切换天线阵列连接到单个电缆，并通过电缆供电并与之通信。 可切换天线的阵列可以被布置成通过天线被布置成产生一个，两个或三个维度中的任何一个的询问场，以提供一系列平行隔开的导体，通过该导体顺序切换电流，以产生切向和正常 磁场分量。 选择顺序切换电流的空间关系，以确保在不同时间在同一位置产生切向和正常磁场。 导体优选地以平面方式布置，并且在平坦表面上方产生切向和正常磁场。 单层平行隔开的导体提供一维或二维操作。 添加正交取向的平行间隔导体的第二平行层提供三维操作，其中电流在两层中依次切换。
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公开(公告)号：US20090075591A1
公开(公告)日：2009-03-19
申请号：US11667525
申请日：2007-03-19
CPC分类号： G06K19/0723 , G06K7/0008
摘要： A wireless communications device (124) including a first antenna (138) and oscillator means (140) for providing a carrier signal (110). There is further provided modulation means (142) for imposing a low level phase modulation on the carrier signal in accordance with a data signal to create a modulated signal, the modulation means (142) also for providing the modulated signal to the first antenna (138) for transmission. An exemplary application of the present invention is in respect of document management systems and methods of identification.
摘要翻译： 一种无线通信设备（124），包括用于提供载波信号（110）的第一天线（138）和振荡器装置（140）。 还提供调制装置（142），用于根据数据信号对载波信号施加低电平相位调制以产生调制信号，该调制装置（142）还用于向第一天线（138）提供调制信号 ）用于传输。 本发明的示例性应用涉及文件管理系统和识别方法。
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公开(公告)号：US20080252423A1
公开(公告)日：2008-10-16
申请号：US12066287
申请日：2006-09-08
CPC分类号： H01Q7/00 , H01Q1/2216 , H01Q21/29
摘要： A series of parallel spaced conductors through which currents are sequentially switched. A spatial relationship of the sequentially switched currents is chosen such that, at different times, tangential and normal magnetic fields are produced at the same location. The conductors are preferably arranged in a planar fashion and the tangential and normal magnetic fields are produced above the planar surface. A single layer of parallel spaced conductors provides substantially two dimensional operations. Adding a second parallel layer of orthogonally oriented parallel spaced conductors provides substantially three dimensional operations where currents are sequentially switched in both layers.
摘要翻译： 一系列平行间隔的导体，电流依次切换。 选择顺序切换电流的空间关系，使得在不同时间，在相同位置产生切向和正常磁场。 导体优选地以平面方式布置，并且在平坦表面上方产生切向和正常磁场。 单层平行隔开的导体提供基本上二维的操作。 添加正交取向的平行间隔的导体的第二平行层提供基本上三维的操作，其中电流在两层中依次切换。
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公开(公告)号：US06967573B1
公开(公告)日：2005-11-22
申请号：US09611658
申请日：2000-07-07
CPC分类号： G06K7/0008 , H03C3/00
摘要： A transmitter or a method for transmitting data from a first antenna imposes a low level phase modulation, for example of less than 90°, on a carrier signal in accordance with a data signal to create a modulated signal, preferably having a carrier frequency and sidebands, and the sidebands may be substantially lower in amplitude than the carrier frequency. The method may be used in an identification system, for example for identifying luggage or other items. In another aspect of an apparatus or method for transmitting data, a phase modulation may be imposed on a carrier signal in accordance with a data signal to create a modulated signal having a carrier and sidebands, where the amount of phase modulation being selected is such that the amplitude of the sidebands is substantially lower than that of the carrier. Phase modulation may be imposed by a mixer.
摘要翻译： 用于从第一天线发射数据的发射机或方法根据数据信号对载波信号施加例如小于90°的低电平相位调制，以产生调制信号，优选地具有载波频率和边带 并且边带的幅度可能比载波频率基本上更低。 该方法可以用于识别系统，例如用于识别行李或其他物品。 在用于发送数据的装置或方法的另一方面，可以根据数据信号对载波信号施加相位调制，以产生具有载波和边带的调制信号，其中所选择的相位调制量使得 边带的振幅基本上低于载波的振幅。 相位调制可以由混频器施加。
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公开(公告)号：US5969609A
公开(公告)日：1999-10-19
申请号：US765549
申请日：1997-01-17
IPC分类号： H01Q7/00 , H01Q17/00 , G08B13/187
CPC分类号： G06K7/10435 , H01Q17/00 , H01Q7/00
摘要： The attenuator is applicable to the art of identification, interrogation and communication equipment. The attenuator has particular application to equipment used in conjunction with smart cards, tags and like apparatus and including, in one form, an RF based technology, which has found a use in electronic ticketing, monitoring passenger movement and the identification and sorting of airline baggage and/or other items, such as containers or mail items. The attenuator, in one form, is predicated on the principle of creating a substantially opposing field, and applying this proximate the interrogator to substantially reduce stray field emissions. The attenuator, in another form, combines the physics of conducting tubes and self-cancelling fields and applies them to a tunnel interrogator. The attenuator thus applies a conducting tube which confines the field and the property of a loop generating a self-cancelling field to an interrogator. This combination may be called a "loop tube". In yet a further aspect, the loop tubes are arranged around the perimeter of the shield to suppress tangential field leakage that would normally be immune to the loop tube's suppressing action.
摘要翻译： PCT No.PCT / AU95 / 00436 Sec。 371日期1997年1月17日 102（e）日期1997年1月17日PCT提交1995年7月18日PCT公布。 出版物WO96 / 02954 日期1996年2月1日衰减器适用于识别，询问和通信设备的技术。 衰减器特别适用于与智能卡，标签和类似设备结合使用的设备，并且以一种形式包括基于RF的技术，其已经发现在电子票务中使用，监视乘客运动以及航空行李的识别和分类 和/或其他物品，例如容器或邮件物品。 以一种形式的衰减器是基于创建基本上相对的场的原理，并且将其应用到询问器附近以显着减少杂散场发射。 衰减器以另一种形式结合了导电管的物理和自消除场，并将其应用于隧道询问器。 衰减器因此施加导电管，其将场和产生自消除场的环的特性限制在询问器上。 这种组合可以称为“环管”。 在另一方面，环管围绕屏蔽的周边布置以抑制通常不受环管抑制作用的切向场泄漏。
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公开(公告)号：US09350577B2
公开(公告)日：2016-05-24
申请号：US12448866
申请日：2008-01-21
CPC分类号： H04L25/4902
摘要： The present invention relates to the field of communication and transmission of signals. In particular, the present invention relates to a new communication and/or modulation method. The present invention also relates to improving channel occupancy. The present specification discloses the adoption of phase transitions/changes in a manner that indicates a code by virtue of their position (timing) in the communication. This is referred to as Phase Position Modulation.
摘要翻译： 本发明涉及信号的通信和传输领域。 特别地，本发明涉及新的通信和/或调制方法。 本发明还涉及改善信道占用。 本说明书公开了以通信中的位置（定时）表示代码的方式采用相变/变化。 这被称为相位调制。
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公开(公告)号：US20130193207A1
公开(公告)日：2013-08-01
申请号：US13634319
申请日：2011-03-18
IPC分类号： G06K7/10
CPC分类号： G06K7/10009 , G01S13/75 , G01V15/00 , G07F17/322
摘要： The present invention relates to the field of radio frequency identification (RFID). In one form, the invention relates to a method and/or device adapted to provide at least some level of providing lateral discrimination within a given area. The invention has been developed primarily for interrogating multiple passive transponders which are attached to objects to be identified by those respective transponders and will be described hereinafter with reference to that application. A typical application is the identification of RFID transponders or other RFID devices, such as those embedded in plastic tokens or cards within a selected area and which may be provided near each other or stacked on each other.
摘要翻译： 本发明涉及射频识别（RFID）领域。 在一种形式中，本发明涉及适于在给定区域内提供至少一定程度的提供横向辨别的方法和/或装置。 本发明主要用于询问多个被动转发器，这些被动应答器连接到由那些相应的转发器识别的对象，并且将在下文中参照该应用进行描述。 典型的应用是识别RFID应答器或其他RFID设备，例如嵌入在塑料令牌中的那些或选定区域内的卡，并且可以彼此靠近地彼此提供或堆叠在一起。
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公开(公告)号：US08451950B2
公开(公告)日：2013-05-28
申请号：US12066361
申请日：2006-09-08
IPC分类号： H04L27/22
CPC分类号： H03D1/24 , G06K19/0723 , H03D3/02 , H03L7/0812 , H04L25/4902 , H04L27/2331
摘要： The present invention relates to the field of receiving data and/or demodulating a data transmission signal. The present invention provides a method of and/or device for determining a data signal imposed on a phase jitter modulation signal. In one form, the invention relates to the field of Radio Frequency Identification (RFID), and the transmission of data between a tag and an interrogator.
摘要翻译： 本发明涉及接收数据和/或解调数据传输信号的领域。 本发明提供了一种用于确定施加在相位抖动调制信号上的数据信号的方法和/或设备。 在一种形式中，本发明涉及射频识别（RFID）领域，以及标签与询问器之间的数据传输。
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