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    • 2. 发明授权
    • Electronic identification system with improved sensitivity
    • 灵敏度提高的电子识别系统
    • US06472975B1
    • 2002-10-29
    • US08262157
    • 1994-06-20
    • Michael L. BeigelNathaniel PolishSteven R. FrankRobert E. Malm
    • Michael L. BeigelNathaniel PolishSteven R. FrankRobert E. Malm
    • H04Q100
    • G06K19/0726G06K7/0008G06K19/0723
    • The coil in the reader that is used to establish an alternating magnetic field is transformer-coupled through capacitors to a push-pull driving circuit consisting of four field-effect transistors connected in a bridge arrangement. The coil, capacitors, and coupling circuitry are maintained in a tuned condition by continually adjusting either the driving frequency, the coil inductance, or the capacitor capacitance during communications. A tag utilizes a coil to couple with the reader's alternating magnetic field and a capacitor to resonate the coil, thereby extracting power from the field more efficiently. Transformer coupling of the coil and capacitor is utilized for improved impedance matching. The coil, capacitor, and coupling circuitry can be maintained in a tuned condition by continually adjusting either the coil inductance, or the capacitor capacitance during communications. Certain configurations of the system may require that tuning maintenance be discontinued during the transmission of data.
    • 用于建立交变磁场的读取器中的线圈通过电容器被变压耦合到由以桥式布置连接的四个场效应晶体管组成的推挽驱动电路。 通过在通信期间连续调节驱动频率,线圈电感或电容器电容,将线圈,电容器和耦合电路保持在调谐状态。 标签利用线圈与读取器的交变磁场耦合,并且电容器使线圈谐振,从而更有效地从场提取功率。 线圈和电容器的变压器耦合用于改进阻抗匹配。 线圈,电容器和耦合电路可以通过连续调节线圈电感或通信期间的电容器电容来保持调谐状态。 系统的某些配置可能需要在传输数据期间停止调谐维护。
    • 3. 发明申请
    • ELECTRONIC IDENTIFICATION SYSTEM WITH IMPROVED SENSITIVITY
    • 具有提高灵敏度的电子识别系统
    • US20100182127A1
    • 2010-07-22
    • US12748428
    • 2010-03-28
    • MICHAEL L. BEIGELNathaniel PolishSteven R. FrankRobert E. Malm
    • MICHAEL L. BEIGELNathaniel PolishSteven R. FrankRobert E. Malm
    • H04Q5/22
    • G06K19/0726G06K7/0008G06K19/0723
    • The electronic identification system provides two-way communications between reader and tags using alternating magnetic fields established by the reader and tag. Communication is accomplished by utilizing either a one-step or a two-step modulation process in which the information to be communicated either modulates an alternating magnetic field directly or modulates a periodic signal which modulates an alternating magnetic field. The coil in the reader that is used to establish an alternating magnetic field is transformer-coupled through capacitors to a push-pull driving circuit consisting of four field-effect transistors connected in a bridge arrangement. The coil, capacitors, and coupling circuitry are maintained in a tuned condition by continually adjusting either the driving frequency, the coil inductance, or the capacitor capacitance during communications. A tag utilizes a coil to couple with the reader's alternating magnetic field and a capacitor to resonate the coil, thereby extracting power from the field more efficiently. Transformer coupling of the coil and capacitor is utilized for improved impedance matching. The coil, capacitor, and coupling circuitry can be maintained in a tuned condition by continually adjusting either the coil inductance, or the capacitor capacitance during communications. Certain configurations of the system may require that tuning maintenance be discontinued during the transmission of data.
    • 电子识别系统使用读取器和标签建立的交变磁场,提供阅读器和标签之间的双向通信。 通过利用一步或两步调制过程来完成通信,其中要传送的信息直接调制交变磁场或调制调制交变磁场的周期信号。 用于建立交变磁场的读取器中的线圈通过电容器被变压耦合到由以桥式布置连接的四个场效应晶体管组成的推挽驱动电路。 通过在通信期间连续调节驱动频率,线圈电感或电容器电容,将线圈,电容器和耦合电路保持在调谐状态。 标签利用线圈与读取器的交变磁场耦合,并且电容器使线圈谐振,从而更有效地从场提取功率。 线圈和电容器的变压器耦合用于改进阻抗匹配。 线圈,电容器和耦合电路可以通过连续调节线圈电感或通信期间的电容器电容来保持调谐状态。 系统的某些配置可能需要在传输数据期间停止调谐维护。
    • 4. 发明授权
    • Electronic identification system with improved sensitivity
    • 灵敏度提高的电子识别系统
    • US07737821B2
    • 2010-06-15
    • US10064380
    • 2002-07-08
    • Michael L BeigelNathaniel PolishSteven R FrankRobert E Malm
    • Michael L BeigelNathaniel PolishSteven R FrankRobert E Malm
    • H04Q1/00
    • G06K19/0726G06K7/0008G06K19/0723
    • The electronic identification system provides two-way communications between reader and tags using alternating magnetic fields established by the reader and tag. Communication is accomplished by utilizing either a one-step or a two-step modulation process in which the information to be communicated either modulates an alternating magnetic field directly or modulates a periodic signal which modulates an alternating magnetic field. The coil in the reader that is used to establish an alternating magnetic field is transformer-coupled through capacitors to a push-pull driving circuit consisting of four field-effect transistors connected in a bridge arrangement. The coil, capacitors, and coupling circuitry are maintained in a tuned condition by continually adjusting either the driving frequency, the coil inductance, or the capacitor capacitance during communications. A tag utilizes a coil to couple with the reader's alternating magnetic field and a capacitor to resonate the coil, thereby extracting power from the field more efficiently. Transformer coupling of the coil and capacitor is utilized for improved impedance matching. The coil, capacitor, and coupling circuitry can be maintained in a tuned condition by continually adjusting either the coil inductance, or the capacitor capacitance during communications. Certain configurations of the system may require that tuning maintenance be discontinued during the transmission of data.
    • 电子识别系统使用读取器和标签建立的交变磁场,提供阅读器和标签之间的双向通信。 通过利用一步或两步调制过程来完成通信,其中要传送的信息直接调制交变磁场或调制调制交变磁场的周期信号。 用于建立交变磁场的读取器中的线圈通过电容器被变压耦合到由以桥式布置连接的四个场效应晶体管组成的推挽驱动电路。 通过在通信期间连续调节驱动频率,线圈电感或电容器电容,将线圈,电容器和耦合电路保持在调谐状态。 标签利用线圈与读取器的交变磁场耦合,并且电容器使线圈谐振,从而更有效地从场提取功率。 线圈和电容器的变压器耦合用于改进阻抗匹配。 线圈,电容器和耦合电路可以通过连续调节线圈电感或通信期间的电容器电容来保持调谐状态。 系统的某些配置可能需要在传输数据期间停止调谐维护。
    • 5. 发明授权
    • Multi-mode identification system
    • 多模式识别系统
    • US5235326A
    • 1993-08-10
    • US746129
    • 1991-08-15
    • Michael L. BeigelNathaniel PolishRobert E. Malm
    • Michael L. BeigelNathaniel PolishRobert E. Malm
    • G01V3/00G01V15/00G06K7/00G06K17/00G06K19/07G08B13/24G08C19/06H04B5/02H04B7/26H04L27/14
    • G06K7/10297G01V15/00G06K19/0723G06K7/0008
    • The multi-mode identification system is a short-range cooperative electronic identification system for use in the identification of fish, birds, animals, and inanimate objects. The system consists of readers and tags wherein a reader in the proximity of and inductively coupled to a tag may interrogate and obtain a response from the tag in accordance with a specified process if the tag belongs to a certain class of tags. The response consists of an identification code unique to the tag together with data supplied by sensors incorporated within the tag. Tags are minuscule in size and intended to be implanted within living tissue or concealed beneath the surface of inanimate objects. Communication between tag and reader is accomplished by a reader establishing a reversing magnetic field in the vicinity of a tag and the tag varying its absorption of power from the field in accordance with the information to be transmitted. The reader detects these variations in power absorption and extracts from these variations the information transmitted by the tag. The multi-mode reader is capable of generating a magnetic field at a plurality of frequencies and is capable of extracting information in accordance with a plurality of protocols thereby permitting the reader to be used with tags of different designs and made by different manufacturers.
    • 多模式识别系统是用于识别鱼,鸟,动物和无生命物体的短程合作电子识别系统。 该系统由阅读器和标签组成,其中如果标签属于特定类别的标签,则接近并感应地耦合到标签的读取器可以询问并根据指定的处理从标签获得响应。 响应包括标签特有的识别代码以及包含在标签内的传感器提供的数据。 标签的尺寸很小,意图植入生物组织或隐藏在无生命物体表面之下。 标签和阅读器之间的通信是通过读取器在标签附近建立反转磁场来实现的,并且标签根据要发送的信息改变其对场的吸收。 读取器检测功率吸收的这些变化,并从这些变化中提取由标签发送的信息。 多模式读取器能够以多个频率产生磁场,并且能够根据多个协议提取信息,从而允许读取器与不同设计的标签一起使用并由不同制造商制造。
    • 9. 发明授权
    • System and method for distributing and managing digital video
information in a video distribution network
    • 在视频分发网络中分发和管理数字视频信息的系统和方法
    • US5963202A
    • 1999-10-05
    • US837202
    • 1997-04-14
    • Nathaniel Polish
    • Nathaniel Polish
    • H04N5/765H04N7/173
    • H04N7/17336
    • The video distribution network system includes client configuration data, a client video buffer for storing video information, a client video driver coupled to the client video buffer for presenting a portion of the video information on a display device, a current status manager for determining current client status information indicative of the portion of video information presented, a computations engine coupled to the client video buffer and to the current status manager for forwarding a burst of video information to the client video buffer based on the client configuration data and on the client status information, and a video buffer controller coupled to the client video buffer for controlling storage of the burst in the client video buffer.
    • 视频分配网络系统包括客户端配置数据,用于存储视频信息的客户端视频缓冲器,耦合到客户端视频缓冲器的客户端视频驱动器,用于在显示设备上呈现视频信息的一部分;当前状态管理器,用于确定当前客户端 指示所呈现的视频信息的部分的状态信息,耦合到客户端视频缓冲器的计算引擎和当前状态管理器,用于基于客户端配置数据和客户端状态信息将视频信息突发转发到客户端视频缓冲器 以及耦合到客户端视频缓冲器的视频缓冲器控制器,用于控制客户端视频缓冲器中的突发的存储。