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    Stage having controlled variable resistance load circuit for use in voltage controlled ring oscillator
    32.
    发明授权
    Stage having controlled variable resistance load circuit for use in voltage controlled ring oscillator 有权
    具有控制可变电阻负载电路的阶段用于压控环形振荡器

    公开(公告)号：US06198357B1

    公开(公告)日：2001-03-06

    申请号：US09153014

    申请日：1998-09-14

    申请人： James E. O'Toole ,  John R. Tuttle ,  Mark E. Tuttle ,  Tyler Lowrey ,  Kevin M. Devereaux ,  George E. Pax ,  Brian P. Higgins ,  David K. Ovard ,  Shu-Sun Yu ,  Robert R. Rotzoll

    发明人： James E. O'Toole ,  John R. Tuttle ,  Mark E. Tuttle ,  Tyler Lowrey ,  Kevin M. Devereaux ,  George E. Pax ,  Brian P. Higgins ,  David K. Ovard ,  Shu-Sun Yu ,  Robert R. Rotzoll

    IPC分类号： H03B502

    CPC分类号： G06K19/0716 ,  G06K7/0008 ,  G06K7/10059 ,  G06K19/0707 ,  G06K19/0712 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/07749 ,  G06K19/07758 ,  G06K2017/0051 ,  H01Q1/2225 ,  H03L7/0995 ,  H03L7/148

    摘要： A stage for a ring oscillator, the stage including a first p-channel transistor having a gate defining a control node, having a source adapted to be coupled to a supply voltage, and having a drain; a second p-channel transistor having a gate coupled to the control node, having a source coupled to the supply voltage, and having a drain; a first n-channel transistor having a gate defining a first input, having a drain coupled to the drain of the first p-channel transistor and defining a first node, and having a source; a second n-channel transistor having a gate defining a second input, having a drain coupled to the drain of the second p-channel transistor and defining a second node, and having a source; a current source coupled to the sources of the first and second n-channel transistors directing current from the sources of the first and second n-channel transistors; a first resistor coupled between the supply voltage and the drain of the first n-type transistor; a second resistor coupled between the supply voltage and drain of the second n-type transistor; a first source follower having an input coupled to the first node and having an output defining a first output of the stage; and a second source follower having an input coupled to the second node and having an output defining a second output of the stage.

    摘要翻译： 用于环形振荡器的级，该级包括具有限定控制节点的栅极的第一p沟道晶体管，其具有适于耦合到电源电压并具有漏极的源极; 第二p沟道晶体管，其具有耦合到所述控制节点的栅极，具有耦合到所述电源电压的源极并具有漏极; 第一n沟道晶体管，其具有限定第一输入的栅极，具有耦合到第一p沟道晶体管的漏极并限定第一节点并具有源极的漏极; 具有限定第二输入的栅极的第二n沟道晶体管，具有耦合到所述第二p沟道晶体管的漏极并限定第二节点并具有源极的漏极; 耦合到所述第一和第二n沟道晶体管的源极的电流源，其引导来自所述第一和第二n沟道晶体管的源极的电流; 耦合在第一n型晶体管的电源电压和漏极之间的第一电阻器; 耦合在第二n型晶体管的电源电压和漏极之间的第二电阻器; 第一源跟随器，具有耦合到所述第一节点并具有定义所述级的第一输出的输出的输入; 以及第二源极跟随器，其具有耦合到所述第二节点并且具有限定所述平台的第二输出的输出的输入。

    Method and apparatus for remote monitoring
    34.
    发明授权
    Method and apparatus for remote monitoring 失效
    用于远程监控的方法和设备

    公开(公告)号：US5894266A

    公开(公告)日：1999-04-13

    申请号：US656530

    申请日：1996-05-30

    申请人： Cliff Wood, Jr. ,  David K. Ovard ,  George E. Pax ,  John R. Tuttle

    发明人： Cliff Wood, Jr. ,  David K. Ovard ,  George E. Pax ,  John R. Tuttle

    IPC分类号： G06K7/00 ,  G06K19/07 ,  G08B1/08

    CPC分类号： G06K7/0008 ,  G06K19/0723

    摘要： A remote intelligent communications device includes a primary RF communications port and an alternative modem communications port. The remote intelligent communications device receives configuration data for configuring the alternative modem communications port. The remote intelligent communications device obtains information data concerning a select attribute of an associated object. The information data is stored within internal memory of the remote intelligent communications device. Thereafter, the stored information data is retrieved, per one embodiment via the alternative modem port, from the remote intelligent communications device and analyzed for drawing conclusions regarding the select attribute of the associated object. Preferably, the remote intelligent communications device also includes a navigation (e.g. GPS) receiver that obtains navigation data, which navigation data is also stored within the internal memory of the remote intelligent communications device. By storing this navigation data together with the information data, once the stored data is retrieved from the remote intelligent communications device, the information data and navigation data can be analyzed for correlating the select attribute of the associated object with respective geographic position in accordance with the analyzed information and navigation data. In one exemplary application, the specific attribute is an open/close condition of a door of a cargo bay, monitored by an appropriate transducer disposed functionally proximate thereto.

    摘要翻译： 远程智能通信设备包括主RF通信端口和替代的调制解调器通信端口。 远程智能通信设备接收用于配置备用调制解调器通信端口的配置数据。 远程智能通信设备获取关于关联对象的选择属性的信息数据。 信息数据存储在远程智能通信设备的内部存储器中。 此后，经由可选调制解调器端口从远程智能通信设备检索所存储的信息数据，并分析了关于关联对象的选择属性的结论。 优选地，远程智能通信设备还包括获取导航数据的导航（例如GPS）接收器，哪个导航数据也存储在远程智能通信设备的内部存储器中。 通过将该导航数据与信息数据一起存储，一旦从远程智能通信设备检索出存储的数据，就可以分析信息数据和导航数据，以便根据相关对象的选择属性与相应的地理位置相关联 分析信息和导航数据。 在一个示例性应用中，特定属性是货舱的门的打开/关闭状态，由在功能上靠近其的设置适当的换能器监视。

    Data communication method using identification protocol
    37.
    发明授权
    Data communication method using identification protocol 失效
    数据通信方法采用识别协议

    公开(公告)号：US5500650A

    公开(公告)日：1996-03-19

    申请号：US990915

    申请日：1992-12-15

    申请人： Charles K. Snodgrass ,  David H. Allen ,  John R. Tuttle ,  Robert R. Rotzoll ,  George E. Pax

    发明人： Charles K. Snodgrass ,  David H. Allen ,  John R. Tuttle ,  Robert R. Rotzoll ,  George E. Pax

    IPC分类号： G01S13/75 ,  G01S13/76 ,  G01S13/78 ,  G06K19/07 ,  G06K19/073 ,  H04L29/12

    CPC分类号： H04L29/12254 ,  G01S13/758 ,  G01S13/765 ,  G06K19/0723 ,  G06K19/073 ,  G06K7/10019 ,  H04L29/12264 ,  H04L29/12292 ,  H04L29/12311 ,  H04L29/1232 ,  H04L29/12783 ,  H04L29/12801 ,  H04L29/12839 ,  H04L61/2038 ,  H04L61/2046 ,  H04L61/2069 ,  H04L61/2084 ,  H04L61/2092 ,  H04L61/35 ,  H04L61/6004 ,  H04L61/6022 ,  G01S13/78

    摘要： A protocol is used to coordinate the use of a common communication medium by one or more interrogating commander stations and an unknown plurality of responding responder stations. Each commander station and each responder station is equipped to broadcast messages and to check for error in received messages. When more than one station attempts to broadcast simultaneously, an erroneous message is received and communication is interrupted. To establish uninterrupted communication, a commander station broadcasts a command causing each responder station of a potentially large first number of responder stations to each select a random number from a known range and retain it as its arbitration number. After receipt of such a command, each addressed responder station transmits a response message containing its arbitration number. Zero, one, or several responses may occur simultaneously. By broadcasting requests for identification to various subsets of the full range of arbitration numbers and checking for an immediate error-free response, a commander station can determine the arbitration number of every responder station capable of communicating at the time. Consequently, a commander station can conduct subsequent uninterrupted communication with each responder station, for example by addressing only one responder station. Responder stations of this invention require minimal logic and circuitry to respond to multiple commander stations.

    摘要翻译： 协议用于协调由一个或多个询问指挥员站和未知的多个响应响应站的公共通信介质的使用。 每个指挥台和每个响应站都配备了广播消息并检查收到的消息中的错误。 当多个站尝试同时广播时，接收到错误的消息并中断通信。 为了建立不间断的通信，指挥台广播一个命令，使每个响应者站的潜在的大的第一个响应站的每一个都从一个已知的范围中选出一个随机数，并将其保留为其仲裁号。 在接收到这样的命令之后，每个寻址响应站发送包含其仲裁号的响应消息。 零，一个或几个响应可能同时发生。 通过向全方位仲裁号码的各种子集广播识别请求，并立即检查无误差的响应，指挥台可以确定当时能够进行通信的每个响应者站的仲裁号码。 因此，指挥台可以进行与每个应答者站的后续的不间断的通信，例如通过仅寻址一个应答站。 本发明的响应站要求最小的逻辑和电路来响应多个指挥台。

    Data communication method using identification protocol
    38.
    发明授权
    Data communication method using identification protocol 失效
    数据通信方法采用识别协议

    公开(公告)号：US5627544A

    公开(公告)日：1997-05-06

    申请号：US619274

    申请日：1996-03-18

    申请人： Charles K. Snodgrass ,  David H. Allen ,  John R. Tuttle ,  Robert R. Rotzoll ,  George E. Pax

    发明人： Charles K. Snodgrass ,  David H. Allen ,  John R. Tuttle ,  Robert R. Rotzoll ,  George E. Pax

    IPC分类号： G01S13/75 ,  G01S13/76 ,  G01S13/78 ,  G06K19/07 ,  G06K19/073 ,  H04L29/12

    CPC分类号： H04L29/12254 ,  G01S13/758 ,  G01S13/765 ,  G06K19/0723 ,  G06K19/073 ,  G06K7/10019 ,  H04L29/12264 ,  H04L29/12292 ,  H04L29/12311 ,  H04L29/1232 ,  H04L29/12783 ,  H04L29/12801 ,  H04L29/12839 ,  H04L61/2038 ,  H04L61/2046 ,  H04L61/2069 ,  H04L61/2084 ,  H04L61/2092 ,  H04L61/35 ,  H04L61/6004 ,  H04L61/6022 ,  G01S13/78

    摘要： A protocol is used to coordinate the use of a common communication medium by one or more interrogating commander stations and an unknown plurality of responding responder stations. Each commander station and each responder station is equipped to broadcast messages and to check for error in received messages. When more than one station attempts to broadcast simultaneously, an erroneous message is received and communication is interrupted. To establish uninterrupted communication, a commander station broadcasts a command causing each responder station of a potentially large first number of responder stations to each select a random number from a known range and retain it as its arbitration number. After receipt of such a command, each addressed responder station transmits a response message containing its arbitration number. Zero, one, or several responses may occur simultaneously. By broadcasting requests for identification to various subsets of the full range of arbitration numbers and checking for an immediate error-free response, a commander station can determine the arbitration number of every responder station capable of communicating at the time. Consequently, a commander station can conduct subsequent uninterrupted communication with each responder station, for example by addressing only one responder station. Responder stations of this invention require minimal logic and circuitry to respond to multiple commander stations.

    摘要翻译： 协议用于协调由一个或多个询问指挥员站和未知的多个响应响应站的公共通信介质的使用。 每个指挥台和每个响应站都配备了广播消息并检查收到的消息中的错误。 当多个站尝试同时广播时，接收到错误的消息并中断通信。 为了建立不间断的通信，指挥台广播一个命令，使每个响应者站的潜在的大的第一个响应站的每一个都从一个已知的范围中选出一个随机数，并将其保留为其仲裁号。 在接收到这样的命令之后，每个寻址响应站发送包含其仲裁号的响应消息。 零，一个或几个响应可能同时发生。 通过向全方位仲裁号码的各种子集广播识别请求，并立即检查无误差的响应，指挥台可以确定当时能够进行通信的每个响应者站的仲裁号码。 因此，指挥台可以进行与每个应答者站的后续的不间断的通信，例如通过仅寻址一个应答站。 本发明的响应站要求最小的逻辑和电路来响应多个指挥台。

    Radio frequency identification device operating methods, radio frequency identification device configuration methods, and radio frequency identification devices
    40.
    发明授权
    Radio frequency identification device operating methods, radio frequency identification device configuration methods, and radio frequency identification devices 失效
    射频识别装置的操作方法，射频识别装置的配置方法和射频识别装置

    公开(公告)号：US08624711B2

    公开(公告)日：2014-01-07

    申请号：US11968561

    申请日：2008-01-02

    申请人： Mark E. Tuttle ,  John R. Tuttle

    发明人： Mark E. Tuttle ,  John R. Tuttle

    IPC分类号： H04Q5/22

    CPC分类号： H01Q1/2225 ,  G01S13/767 ,  G01S13/78 ,  G06K7/10346 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/07749 ,  H01Q1/22 ,  H01Q7/00

    摘要： An adjustable radio frequency data communications device has a monolithic semiconductor integrated circuit with integrated circuitry, interrogation receiving circuitry provided on the monolithic integrated circuit forming at least part of the integrated circuitry and configured to receive an interrogation signal from the interrogator unit, an antenna electrically coupled to the interrogation receiving circuitry and configured to communicate with the remote interrogator unit, a power source electrically coupled to the integrated circuitry and configured to generate operating power for the communications device, and at least one of the antenna and the interrogation receiving circuitry having reconfigurable electrical characteristics, the electrical characteristics being reconfigurable to selectively tune the at least one of the antenna and the interrogation receiving circuitry within a range of tuned and detuned states to realize a desired receiver sensitivity of the communications device. Additionally, a method for tuning receiver sensitivity and/or transmitter sensitivity according to construction of the above device is disclosed.

    摘要翻译： 一种可调节射频数据通信设备具有集成电路的单片半导体集成电路，在单片集成电路上提供的询问接收电路，其形成集成电路的至少一部分并且被配置为从询问器单元接收询问信号，天线电耦合 所述询问接收电路被配置为与所述远程询问器单元通信;电源，其耦合到所述集成电路并且被配置为生成所述通信设备的操作功率，并且所述天线和所述询问接收电路中的至少一个具有可重新配置的电 特性，电特性是可重构的，以在调谐和失谐状态的范围内选择性地调谐天线和询问接收电路中的至少一个，以实现通信设备的期望接收机灵敏度 e。 此外，公开了根据上述装置的结构来调整接收机灵敏度和/或发射机灵敏度的方法。