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1. 发明授权

US07317382B2 Remote communications devices, wireless communications systems, and wireless communications methods 失效
标题翻译：远程通信设备，无线通信系统和无线通信方法
公开(公告)号：US07317382B2
公开(公告)日：2008-01-08
申请号：US11011316
申请日：2004-12-13
申请人： Richard M. Pratt , Jeffrey Wayne Scott , Michael A. Hughes , Michael A. Lind , Gary B. Morgan
发明人： Richard M. Pratt , Jeffrey Wayne Scott , Michael A. Hughes , Michael A. Lind , Gary B. Morgan
IPC分类号： B60Q25/10
CPC分类号： H04B5/02 , G08C17/02 , H04B5/0043 , H04Q9/00
摘要： Remote communications devices, wireless communications systems, and wireless communications methods are described. In one aspect, a remote communications device includes communication circuitry configured to communicate wireless communication signals externally of the remote communications device, sensor circuitry configured to sense at least one condition with respect to the remote communications device, and wherein the communication circuitry is coupled with the sensor circuitry and is configured to determine a plurality of different moments in time responsive to criteria originating within the remote communications device and to communicate data indicative of the at least one sensed condition externally of the remote communications device to a reader using the wireless communication signals at the different moments in time.
摘要翻译：描述了远程通信设备，无线通信系统和无线通信方法。在一个方面，远程通信设备包括被配置为在远程通信设备外部传送无线通信信号的通信电路，被配置为感测相对于远程通信设备的至少一个状态的传感器电路，并且其中通信电路与传感器电路，并且被配置为响应于源自远程通信设备的标准来确定多个不同的时刻，并且使用无线通信信号将指示远程通信设备外部的至少一个感测状态的数据传送到读取器不同的时刻。

2. 发明授权

US07760073B2 RFID tag modification for full depth backscatter modulation 有权
标题翻译：用于全深度后向散射调制的RFID标签修改
公开(公告)号：US07760073B2
公开(公告)日：2010-07-20
申请号：US11029841
申请日：2005-01-04
申请人： Jeffrey Wayne Scott , Richard M. Pratt
发明人： Jeffrey Wayne Scott , Richard M. Pratt
IPC分类号： H04Q5/22
CPC分类号： G06K19/0723
摘要： A modulated backscatter radio frequency identification device includes a diode detector configured to selectively modulate a reply signal onto an incoming continuous wave; communications circuitry configured to provide a modulation control signal to the diode detector, the diode detector being configured to modulate the reply signal in response to be modulation control signal; and circuitry configured to increase impedance change at the diode detector which would otherwise not occur because the diode detector rectifies the incoming continuous wave while modulating the reply signal, whereby reducing the rectified signal increases modulation depth by removing the reverse bias effects on impedance changes. Methods of improving depth of modulation in a modulated backscatter radio frequency identification device are also provided.
摘要翻译：调制反向散射射频识别装置包括：二极管检测器，被配置为选择性地将回复信号调制到输入的连续波上; 通信电路，被配置为向所述二极管检测器提供调制控制信号，所述二极管检测器被配置为响应于调制控制信号来调制所述应答信号; 以及被配置为增加二极管检测器处的阻抗变化的电路，否则，由于二极管检测器对输入的连续波进行整流同时调制回复信号，否则不会发生阻抗变化，借此通过消除对阻抗变化的反向偏置效应来减小整流信号来增加调制深度。还提供了改进调制后向散射射频识别装置中的调制深度的方法。

3. 发明授权

US07348875B2 Semi-passive radio frequency identification (RFID) tag with active beacon 有权
标题翻译：具有活动信标的半无源射频识别（RFID）标签
公开(公告)号：US07348875B2
公开(公告)日：2008-03-25
申请号：US10839058
申请日：2004-05-04
申请人： Michael A. Hughes , Richard M. Pratt
发明人： Michael A. Hughes , Richard M. Pratt
IPC分类号： H04Q5/22 , G08B13/14
CPC分类号： G06K19/0717 , G06K19/0723 , G06K19/07786
摘要： A radio frequency beacon device for use with a backscatter interrogator includes a processor; a receiver coupled to the processor; a backscatter modulator coupled to the processor; and an active transmitter coupled to the processor, the active transmitter being configured to transmit an RF signal, in response to a trigger signal, regardless of whether the interrogator is providing a carrier wave for backscatter modulation by the backscatter modulator. Other methods and apparatus are provided.
摘要翻译：用于与后向散射询问器一起使用的射频信标装置包括：处理器; 耦合到所述处理器的接收器; 耦合到所述处理器的反向散射调制器; 以及耦合到所述处理器的主动发射机，所述主动发射机被配置为响应于触发信号来发射RF信号，而不管所述询问器是否为后向散射调制器的后向散射调制提供载波。提供其他方法和装置。

4. 发明授权

US06995655B2 Method of simultaneously reading multiple radio frequency tags, RF tags, and RF reader 失效
标题翻译：同时读取多个射频标签，RF标签和RF读取器的方法
公开(公告)号：US06995655B2
公开(公告)日：2006-02-07
申请号：US10263809
申请日：2002-10-02
申请人： Emre Ertin , Richard M. Pratt , Michael A. Hughes , Kevin L. Priddy , Wayne M. Lechelt
发明人： Emre Ertin , Richard M. Pratt , Michael A. Hughes , Kevin L. Priddy , Wayne M. Lechelt
IPC分类号： H04Q5/22 , H04B7/212 , H04L12/43
CPC分类号： G06K7/10059 , G06K7/0008 , G06K7/10069 , G06K19/0723
摘要： An RF tag system, comprising an RF reader configured to issue a plurality of different RF commands and to provide a continuous RF illumination field, and a plurality of RF tags respectively including a permanent identification; wherein the plurality of RF tags are configured to respond to a certain RF command from the RF reader by transmitting their respective identifications by way of backscatter modulation of the RF illumination field, and wherein the RF tags are further configured to perform the responding by way of respective independently selected random radio frequencies and timeslots from respective pre-defined ranges of radio frequencies and timeslots.
摘要翻译：一种RF标签系统，包括被配置为发出多个不同RF命令并提供连续RF照明场的RF读取器和分别包括永久标识的多个RF标签; 其中所述多个RF标签被配置为通过经由所述RF照明场的后向散射调制发射它们各自的标识来响应来自所述RF读取器的某个RF命令，并且其中所述RF标签还被配置为通过以下方式执行所述响应：相应的独立选择的随机无线电频率和来自各个预定义的射频和时隙范围的时隙。

5. 发明授权

US06842106B2 Challenged-based tag authentication model 失效
标题翻译：基于挑战的标签认证模型
公开(公告)号：US06842106B2
公开(公告)日：2005-01-11
申请号：US10263635
申请日：2002-10-04
申请人： Michael A. Hughes , Richard M. Pratt
发明人： Michael A. Hughes , Richard M. Pratt
IPC分类号： G06F21/00 , G06K7/00 , G06K19/07 , G07F7/10 , H04L9/32 , H04L29/06 , G05B19/00
CPC分类号： H04L63/08 , G06F21/31 , G06F2221/2103 , G06F2221/2129 , G06K7/0008 , G06K19/0723 , G06Q20/341 , G06Q20/40975 , G07F7/1008 , H04L9/3271 , H04L63/0435 , H04L63/0853 , H04L2209/805
摘要： A method of securing communications in an RFID system including a reader and an RF tag having a memory configured to store information comprises sending, from the reader, a message to the tag; the tag, in response to the message, generating a challenge value and sending the challenge value to the reader; in any order: the reader performing a mathematical operation on the challenge value based upon a key value to generate a challenge reply and sending the challenge reply to the tag and the tag independently computing a challenge response based on the key value and mathematical operation; the tag comparing the challenge response computed by the tag with the challenge reply sent by the reader; and the tag authenticating the reader if the challenge response matches the challenge reply. An RFID system including an RFID tag and a reader are configured to perform the above steps.
摘要翻译：一种在包括读取器和RF标签的RFID系统中确保通信的方法，所述RF标签具有被配置为存储信息的存储器，包括从读取器向所述标签发送消息; 所述标签响应于所述消息，生成挑战值并将所述挑战值发送给所述读取器; 按照任何顺序：读取器基于键值对挑战值执行数学运算以生成挑战答复，并且基于键值和数学运算独立地计算挑战响应，向标签和标签发送挑战答复; 该标签将由标签计算的挑战响应与读者发送的挑战答复进行比较; 并且如果挑战响应匹配挑战回复，则标签对读取器进行认证。包括RFID标签和读取器的RFID系统被配置为执行上述步骤。

6. 发明授权

US07019617B2 Radio frequency identification devices, backscatter communication device wake-up methods, communication device wake-up methods and a radio frequency identification device wake-up method 失效
标题翻译：射频识别装置，反向散射通信装置唤醒方式，通信装置唤醒方式和射频识别装置唤醒方式
公开(公告)号：US07019617B2
公开(公告)日：2006-03-28
申请号：US10263940
申请日：2002-10-02
申请人： Richard M. Pratt , Michael A. Hughes
发明人： Richard M. Pratt , Michael A. Hughes
IPC分类号： H04B1/38 , H04B1/16 , H04M1/00
CPC分类号： H04B5/0037 , G06K7/0008 , G06K19/0707 , G06K19/0712 , G06K19/0715 , G06K19/0723 , H02J9/005 , H04W52/0229 , Y02D70/142 , Y02D70/144 , Y02D70/166 , Y02D70/26 , Y02D70/42
摘要： Radio frequency identification devices, backscatter communication device wake-up methods, communication device wake-up methods and a radio frequency identification device wake-up method are described. In one aspect, a wireless communication device includes a processor configured to process a plurality of received wireless signals and to control the communication of a plurality of outputted wireless signals, wherein the processor is configured to control the communication of the outputted wireless signals using backscatter modulation, circuitry coupled with the processor and configured to control operations of the processor, and wherein the processor is configured to output a reference signal responsive to detection of radio frequency energy, the circuitry is configured to analyze the reference signal and the radio frequency energy, and the processor is configured to enter a predefined mode of operation utilizing an increased amount of electrical energy responsive to the analysis of the reference signal and the radio frequency energy by the circuitry.
摘要翻译：描述了射频识别装置，反向散射通信装置唤醒方法，通信装置唤醒方法和射频识别装置唤醒方法。一方面，一种无线通信设备包括：处理器，被配置为处理多个接收的无线信号并且控制多个输出的无线信号的通信，其中所述处理器被配置为使用反向散射调制来控制所输出的无线信号的通信与所述处理器耦合并且被配置为控制所述处理器的操作的电路，并且其中所述处理器被配置为响应于射频能量的检测来输出参考信号，所述电路被配置为分析所述参考信号和所述射频能量，以及处理器被配置为响应于电路对参考信号和无线电频率能量的分析，利用增加的电能量进入预定义的操作模式。

7. 发明授权

US07009526B2 RFID system and method including tag ID compression 失效
标题翻译： RFID系统和方法包括标签ID压缩
公开(公告)号：US07009526B2
公开(公告)日：2006-03-07
申请号：US10263873
申请日：2002-10-02
申请人： Michael A. Hughes , Richard M. Pratt
发明人： Michael A. Hughes , Richard M. Pratt
IPC分类号： G08B5/22 , G08B23/00 , H04Q5/22
CPC分类号： G06K7/10019 , G06K7/0008
摘要： A method of rapidly identifying RFID tags in an RFID system including a reader and a plurality of RFID tags, the tags having respective IDs formed of a plurality of bit locations, the method comprising determining in the reader which bit locations do not add to the uniqueness of the IDs of the tags; and ignoring data in bit locations that do not add to the uniqueness of the IDs of the tags. An RFID system comprising a plurality of RFID tags, the tags having respective IDs formed of a plurality of bit locations; and an RFID reader configured to communicate with the RFID tags, the reader being configured to determine which bit locations do not add to the uniqueness of the IDs of the tags, and to ignore data in bit locations that do not add to the uniqueness of the IDs of the tags.
摘要翻译：一种在包括读取器和多个RFID标签的RFID系统中快速识别RFID标签的方法，所述标签具有由多个位位置形成的各自的ID，所述方法包括在读取器中确定哪些位位置不增加到唯一性的标签ID; 并忽略不增加标签ID的唯一性的位位置中的数据。一种RFID系统，包括多个RFID标签，所述标签具有由多个位位置形成的各自的ID; 以及被配置为与RFID标签通信的RFID读取器，所述读取器被配置为确定哪些比特位置不增加所述标签的ID的唯一性，并且忽略不增加所述标签的唯一性的比特位置中的数据标签的ID。

8. 发明授权

US07009495B2 System and method to identify multiple RFID tags 失效
标题翻译：识别多个RFID标签的系统和方法
公开(公告)号：US07009495B2
公开(公告)日：2006-03-07
申请号：US10264078
申请日：2002-10-02
申请人： Michael A. Hughes , Richard M. Pratt
发明人： Michael A. Hughes , Richard M. Pratt
IPC分类号： H04Q5/22 , H04J3/16 , H04L12/43
CPC分类号： G06K7/10029 , G06K7/0008 , G06K7/10069
摘要： An RFID system comprises an RFID reader configured to issue an RF command requesting that RF tags identify themselves, and to issue timing information defining a plurality of timeslots; and a plurality of RF tags in selective communication with the reader, the RF tags having respective IDs, respective tags being configured to randomly select a timeslot in which to reply to the RF command, and to issue an RF reply in response to the RF command in the randomly selected timeslot, the RF reply including a frequency pattern to assist in identifying the tag but not the tag's entire ID, different tags having different frequency patterns.
摘要翻译： RFID系统包括被配置为发出RF命令的RFID读取器，RFID命令请求RF标签自身识别，并且发布定义多个时隙的定时信息; 以及与读取器选择性地通信的多个RF标签，RF标签具有各自的ID，各个标签被配置为随机选择其中应答RF命令的时隙，并响应于RF命令发出RF应答在随机选择的时隙中，RF应答包括有助于识别标签而不是标签的整个ID的频率模式，不同的标签具有不同的频率模式。

9. 发明授权

US08218703B2 Methods of processing a wireless communication signal, wireless communication synchronization methods, and a radio frequency identification device communication method 有权
标题翻译：处理无线通信信号的方法，无线通信同步方法以及射频识别装置通信方法
公开(公告)号：US08218703B2
公开(公告)日：2012-07-10
申请号：US12630764
申请日：2009-12-03
申请人： Richard M. Pratt , Steven B. Thompson
发明人： Richard M. Pratt , Steven B. Thompson
IPC分类号： H04L7/02 , H04L7/033 , H04L7/00 , H04L7/04
CPC分类号： H04L7/0066 , G06K7/0008 , G06K19/0723 , G06K19/07758 , H03K5/135 , H03K5/1565 , H04L7/027
摘要： In one aspect, a wireless communication device includes an antenna configured to receive electromagnetic energy corresponding to a wireless communication signal outputted using an interrogator and to output electrical energy corresponding to the received electromagnetic energy, communication circuitry coupled with the antenna and configured to sample the electrical energy to process the wireless communication signal, synchronization circuitry coupled with the antenna and the communication circuitry and configured to generate a clock signal to control sampling of the electrical energy using the communication circuitry, wherein the synchronization circuitry is configured to generate a plurality of transitions within the clock signal responsive to a plurality of transitions of the electrical energy during a first data period and wherein the synchronization circuitry is configured to generate a plurality of transitions within the clock signal during a second data period including generating at least one of the transitions independent of transitions of the electrical energy.
摘要翻译：一方面，一种无线通信设备包括：天线，被配置为接收与使用询问器输出的无线通信信号相对应的电磁能量，并输出与所接收的电磁能量对应的电能，与天线耦合的通信电路，处理无线通信信号的能量，与天线和通信电路耦合的同步电路，并被配置为产生时钟信号，以使用通信电路来控制对电能的采样，其中同步电路被配置为在所述时钟信号在第一数据周期期间响应于所述电能的多个转换，并且其中所述同步电路被配置为在所述时钟信号期间在包括总线的第二数据周期期间产生所述时钟信号内的多个转换 g独立于电能的跃迁的至少一个转换。

10. 发明授权

US08183826B2 Battery charging control methods, electric vehicle charging methods, battery charging apparatuses and rechargeable battery systems 有权
标题翻译：电池充电控制方法，电动车充电方法，电池充电装置和充电电池系统
公开(公告)号：US08183826B2
公开(公告)日：2012-05-22
申请号：US12467192
申请日：2009-05-15
申请人： Francis K. Tuffner , Michael C. W. Kintner-Meyer , Donald J. Hammerstrom , Richard M. Pratt
发明人： Francis K. Tuffner , Michael C. W. Kintner-Meyer , Donald J. Hammerstrom , Richard M. Pratt
IPC分类号： H01M10/44 , H01M10/46
CPC分类号： H02J7/34 , B60L11/1816 , B60L11/1844 , B60L11/1861 , B60L2230/16 , B60L2240/80 , B60L2250/12 , Y02E60/721 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7088 , Y02T90/121 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y04S10/126
摘要： Battery charging control methods, electric vehicle charging methods, battery charging apparatuses and rechargeable battery systems. According to one aspect, a battery charging control method includes accessing information regarding a presence of at least one of a surplus and a deficiency of electrical energy upon an electrical power distribution system at a plurality of different moments in time, and using the information, controlling an adjustment of an amount of the electrical energy provided from the electrical power distribution system to a rechargeable battery to charge the rechargeable battery.
摘要翻译：电池充电控制方法，电动车充电方法，电池充电装置和充电电池系统。根据一个方面，一种电池充电控制方法包括在多个不同的时刻在电力分配系统上访问关于多余和不足的电能中的至少一个的信息，并且使用该信息来控制调整从电力分配系统提供给可再充电电池的电能量，以对可再充电电池充电。

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