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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。
    • 4. 发明授权
    • Universal electronic identification tag
    • 通用电子识别标签
    • US06784788B2
    • 2004-08-31
    • US09834507
    • 2001-04-12
    • Michael L. BeigelRobert E. Malm
    • Michael L. BeigelRobert E. Malm
    • H04Q522
    • G06K7/10297G06K19/0723
    • The universal electronic identification tag is for use with a variety of readers of different designs including a control reader which can be used to control the operations of the universal tag. A reader interrogates a tag by transmitting a carrier. The universal tag comprises a transducer, a modulator connected across the transducer, and a control means. The control means causes the modulator to drive the transducer with a plurality of different message waveforms after interrogation by a reader, the tag identity being embedded in each of the message waveforms. The message waveforms can be transmitted either simultaneously, sequentially, or both ways. A message waveform is comprised of a sequence of contiguous waveform segments, each waveform segment representing the value of an N-bit group, N being an integer. A waveform segment is a periodic signal characterized by the parameters frequency, phase, and amplitude. The waveform segments which represent the values of an N-bit group are differentiated by the values of at least one parameter.
    • 通用电子识别标签可用于不同设计的各种读取器,包括可用于控制通用标签操作的控制读取器。 读者通过传送载体来询问标签。 通用标签包括换能器,连接在换能器上的调制器和控制装置。 控制装置使得调制器在读取器询问之后以多个不同的消息波形驱动换能器,标签标识嵌入在每个消息波形中。 消息波形可以同时,顺序或两种方式传输。 消息波形由连续波形段的序列组成,每个波形段表示N位组的值,N是整数。 波形段是由频率,相位和幅度参数表征的周期信号。 表示N位组的值的波形段由至少一个参数的值区分。
    • 10. 发明授权
    • Data altering means for multi-memory electronic identification tag
    • 用于多存储器电子识别标签的数据改变装置
    • US5257011A
    • 1993-10-26
    • US6251
    • 1993-01-19
    • Michael L. Beigel
    • Michael L. Beigel
    • A01K11/00G06K7/00G06K19/07G08B13/24H04Q1/18
    • G08B13/2482A01K11/006G06K19/0723G06K7/0008G08B13/2417G08B13/2431G08B13/2462G08B13/2471
    • Multi-memory electronic identification tags are utilized in short-range cooperative electronic identification systems for the identification of a variety of objects. Such systems are comprised of readers and tags wherein a reader in the proximity of a tag may communicate with the tag in accordance with a specified process if the tag belongs to a certain class of tags. Tags are 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 multi-memory tag utilizes three types of memory for the storage of data to be transmitted to an interrogating reader. The first type of memory is both permanent and unalterable and is used for storing data that is unique to the tag and never needs to be changed. The second type of memory is permanent but also alterable and is used for storing data that characterizes the object to which the tag is attached. The data stored in this second type of memory is altered by means of a separate memory programming unit which communicates with a tag by means of a reversing magnetic field that is modulated in accordance with the new data. The third type of memory is for the temporary storage of data produced by tag sensors.
    • 多记录电子识别标签用于短距离合作电子识别系统中,用于识别各种物体。 这样的系统包括读取器和标签,其中如果标签属于特定类别的标签,则标签附近的读取器可以根据指定的过程与标签通信。 标签旨在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。 多存储器标签使用三种类型的存储器来存储要发送到询问读取器的数据。 第一种类型的内存是永久性和不可变的,用于存储标签唯一的数据,并且不需要更改。 第二种类型的存储器是永久性的,但也是可变的,并且用于存储表征标签附加到的对象的数据。 存储在该第二类型存储器中的数据通过单独的存储器编程单元改变,该存储器编程单元通过根据新数据调制的反向磁场与标签通信。 第三种类型的存储器是临时存储由标签传感器产生的数据。