公开(公告)号：US06340932B1

公开(公告)日：2002-01-22

申请号：US09604180

申请日：2000-06-27

申请人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

发明人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

IPC分类号： G08B1314

CPC分类号： H01Q1/2225 ,  G01S13/753 ,  G01S13/756 ,  G01S13/758 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10336 ,  G06K7/10346 ,  G06K19/0701 ,  G06K19/0723 ,  G06K19/0724 ,  G06K19/07779 ,  G06K19/07783 ,  G08B13/2417 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q5/35 ,  H01Q5/40 ,  H01Q7/00 ,  H01Q9/14 ,  H01Q21/28 ,  H01Q23/00

摘要： A carrier, as used for example to transport several radio frequency identification devices, includes a circuit having an antenna and a series capacitor for tuning the antenna. Enhanced transceiver communication results when transceivers are placed in the carrier. Alternately, a carrier may include first and second antenna circuits, each having a capacitor for tuning the respective antenna. The two circuits may cooperate so that energy received in a first pattern is re-radiated in a second pattern for further enhanced transceiver communication, such as detection of the presence of the RFID device within the carrier.

摘要翻译： 用于传送若干射频识别装置的载体包括具有用于调谐天线的天线和串联电容器的电路。 当收发器放置在载体中时，会增强收发器通信。 或者，载体可以包括第一和第二天线电路，每个电路具有用于调谐相应天线的电容器。 两个电路可以协作，使得以第一模式接收的能量以第二模式重新辐射，以进一步增强收发器通信，例如检测RFID装置在载体内的存在。

公开(公告)号：US06982646B2

公开(公告)日：2006-01-03

申请号：US09921956

申请日：2001-08-03

申请人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

发明人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

IPC分类号： G08B13/14

CPC分类号： H01Q1/2225 ,  G01S13/753 ,  G01S13/756 ,  G01S13/758 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10336 ,  G06K7/10346 ,  G06K19/0701 ,  G06K19/0723 ,  G06K19/0724 ,  G06K19/07779 ,  G06K19/07783 ,  G08B13/2417 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q5/35 ,  H01Q5/40 ,  H01Q7/00 ,  H01Q9/14 ,  H01Q21/28 ,  H01Q23/00

摘要： An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency. Transceivers of the type having a resonant circuit coupled to an antenna, when operating in close proximity to each other, may interfere with the response from a single transceiver by absorbing the energy intended to be received by the transceiver, absorbing the energy transmitted by the transceiver, or altering the resonant frequency of the resonant circuit. By determining the second frequency for transceiver communication, the monitor may establish communication with the single transceiver at a frequency better suited for transferring operative power to the transceiver, conducting an interrogation protocol for identifying the transceiver, or for data transfer.

公开(公告)号：US06831562B2

公开(公告)日：2004-12-14

申请号：US09802728

申请日：2001-03-09

申请人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

发明人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

IPC分类号： G08B1314

CPC分类号： H01Q1/2225 ,  G01S13/753 ,  G01S13/756 ,  G01S13/758 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10336 ,  G06K7/10346 ,  G06K19/0701 ,  G06K19/0723 ,  G06K19/0724 ,  G06K19/07779 ,  G06K19/07783 ,  G08B13/2417 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q5/35 ,  H01Q5/40 ,  H01Q7/00 ,  H01Q9/14 ,  H01Q21/28 ,  H01Q23/00

摘要： An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency.

摘要翻译： 对象识别系统包括通过公共介质进行通信的监视器和多个收发器。 监视器包括第一发射器，第一接收器和处理器。 每个收发器包括谐振电路，发射器，接收器和耦合到谐振电路的天线。 处理器执行用于执行收发器通信的方法，其包括以下步骤：（a）从第一发射机发送第一频率第一持续时间; （b）经过第一持续时间之后，经由第一接收器接收来自至少一个谐振电路的响应信号; （c）从所接收的响应信号确定第二频率; 和（d）使用第二频率执行收发器通信。

公开(公告)号：US07633378B2

公开(公告)日：2009-12-15

申请号：US11305376

申请日：2005-12-15

申请人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

发明人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

IPC分类号： G08B13/14

CPC分类号： H01Q1/2225 ,  G01S13/753 ,  G01S13/756 ,  G01S13/758 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10336 ,  G06K7/10346 ,  G06K19/0701 ,  G06K19/0723 ,  G06K19/0724 ,  G06K19/07779 ,  G06K19/07783 ,  G08B13/2417 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q5/35 ,  H01Q5/40 ,  H01Q7/00 ,  H01Q9/14 ,  H01Q21/28 ,  H01Q23/00

摘要： An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency. Transceivers of the type having a resonant circuit coupled to an antenna, when operating in close proximity to each other, may interfere with the response from a single transceiver by absorbing the energy intended to be received by the transceiver, absorbing the energy transmitted by the transceiver, or altering the resonant frequency of the resonant circuit. By determining the second frequency for transceiver communication, the monitor may establish communication with the single transceiver at a frequency better suited for transferring operative power to the transceiver, conducting an interrogation protocol for identifying the transceiver, or for data transfer.

公开(公告)号：US06362737B1

公开(公告)日：2002-03-26

申请号：US09372274

申请日：1999-08-11

申请人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

发明人： James L. Rodgers ,  John J. Coulthard ,  Billy C. Fowler ,  Howard K. Jaecks ,  Roc A. Lastinger ,  Paul A. Picard ,  Mohammad A. Rehman

IPC分类号： G08B1314

CPC分类号： H01Q1/2225 ,  G01S13/753 ,  G01S13/756 ,  G01S13/758 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10336 ,  G06K7/10346 ,  G06K19/0701 ,  G06K19/0723 ,  G06K19/0724 ,  G06K19/07779 ,  G06K19/07783 ,  G08B13/2417 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q5/35 ,  H01Q5/40 ,  H01Q7/00 ,  H01Q9/14 ,  H01Q21/28 ,  H01Q23/00

摘要： An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency. Transceivers of the type having a resonant circuit coupled to an antenna, when operating in close proximity to each other, may interfere with the response from a single transceiver by absorbing the energy intended to be received by the transceiver, absorbing the energy transmitted by the transceiver, or altering the resonant frequency of the resonant circuit. By determining the second frequency for transceiver communication, the monitor may establish communication with the single transceiver at a frequency better suited for transferring operative power to the transceiver, conducting an interrogation protocol for identifying the transceiver, or for data transfer.

摘要翻译： 对象识别系统包括通过公共介质进行通信的监视器和多个收发器。 监视器包括第一发射机，第一接收机和处理器。 每个收发器包括谐振电路，发射器，接收器和耦合到谐振电路的天线。 处理器执行用于执行收发器通信的方法，其包括以下步骤：（a）从第一发射机发送第一频率第一持续时间; （b）经过第一持续时间之后，经由第一接收器接收来自至少一个谐振电路的响应信号; （c）从接收到的响应信号确定第二频率; 和（d）使用第二频率执行收发器通信。 具有耦合到天线的谐振电路的类型的收发器当彼此靠近地操作时可能会干扰来自单个收发器的响应，通过吸收由收发器预期接收的能量，吸收由收发器发送的能量 或改变谐振电路的谐振频率。 通过确定用于收发器通信的第二频率，监视器可以以更适合于将操作功率传送到收发器的频率来建立与单个收发器的通信，执行用于识别收发器的询问协议或用于数据传送。