-
11.发明授权公开(公告)号：US06370365B1
公开(公告)日：2002-04-09
申请号：US09205312
申请日：1998-12-04
IPC分类号： H04B104
摘要： A selective call radio (300) includes receiver (200). The receiver in turn includes an antenna (202) for receiving a radio signal having a first operating frequency, an amplifier(204) coupled thereto for generating an amplified signal; and a frequency translation circuit (208). The frequency translation circuit includes a selectivity filter (212) and an integrated frequency conversion circuit (216). The selectivity is coupled to the amplified signal for generating a filtered signal. The integrated frequency conversion circuit is coupled to the filtered signal and is incorporated into at least one IC (integrated circuit). The integrated frequency conversion circuit includes an oscillator (220), a divider (224), and a mixer (218). A first input of the mixer is coupled to the filtered signal generated by the selectivity filter. The divider is coupled to the oscillator and its output is coupled to a second input of the mixer. The mixer generates an output signal having a second operating frequency, the second operating frequency having a frequency value different from the frequency value of the first operating frequency of the radio signal.
摘要翻译： 选呼通话（300）包括接收机（200）。 接收机又包括用于接收具有第一工作频率的无线电信号的天线（202），与其耦合的放大器（204），用于产生放大信号; 和频率转换电路（208）。 频率转换电路包括选择性滤波器（212）和集成频率转换电路（216）。 选择性耦合到放大的信号以产生滤波信号。 集成频率转换电路耦合到滤波后的信号，并被并入到至少一个IC（集成电路）中。 集成频率转换电路包括振荡器（220），分频器（224）和混频器（218）。 混频器的第一输入端耦合到由选择滤波器产生的滤波信号。 分频器耦合到振荡器，其输出耦合到混频器的第二输入端。 混频器产生具有第二工作频率的输出信号，第二工作频率具有与无线电信号的第一工作频率的频率值不同的频率值。
-
公开(公告)号：US06327300B1
公开(公告)日：2001-12-04
申请号：US09425923
申请日：1999-10-25
IPC分类号： H04L516
CPC分类号： H04W72/0453 , H04L5/0007 , H04L5/0033 , H04L5/0044 , H04L5/0062 , H04L27/0006
摘要： A transceiver device (52 or 10) operates as a source of a data transmission in a communication system (50) capable of dynamically allocating spectrum for transmission of the data transmission between the transceiver device (52) and a second transceiver device (51). The transceiver device (10) includes a transmitter, a receiver coupled to the transmitter and a processor or controller (12) coupled to the transmitter and receiver. The transceiver device is programmed to monitor the spectrum (channels 1-13 of FIG. 3) to determine if a portion (channels 4-8 for example in time slot 8) of the spectrum is available. The transceiver determines what portion of the spectrum is desired for data transmission and then transmits (see time slots 11 and 13) the data transmission within a dynamically selected portion of the available spectrum.
摘要翻译： 收发器设备（52或10）在能够动态地分配频谱以在收发器设备（52）和第二收发器设备（51）之间的数据传输的传输的通信系统（50）中作为数据传输的来源进行操作。 收发器设备（10）包括发射机，耦合到发射机的接收机和耦合到发射机和接收机的处理器或控制器（12）。 收发器装置被编程以监视频谱（图3的信道1-13）以确定频谱中的一部分（例如时隙8中的信道4-8）是否可用。 收发信机确定频谱的哪些部分是数据传输所需的，然后在可用频谱的动态选择部分内传输（见时隙11和13）数据传输。
-
公开(公告)号：US5940757A
公开(公告)日：1999-08-17
申请号：US31649
申请日：1998-02-27
CPC分类号： H04W48/18 , H04W88/185
摘要： A communication system (100) that selects alternative data channels for communication has a base station (106) coupled to a plurality of alternative data communication systems (112, 114, 116) that receive messages intended for a selective call device designated by an address. A data scheduler (104), coupled to the base station (106) and the plurality of alternative data communication systems (112, 114, 116), has a categorizer (404) for categorizing the message as being suitable for transmission on an alternative data channel, a controller (402) for coordinating a list of the alternative data communication systems suitable for transmitting the message and a selector (406) for selecting the alternative data channel for transmitting the message. A controller (105) encodes a selective call signal with the address and a vector and a transmitter transmits the selective call signal to the selective call device (102) on a control channel including the address for identifying the selective call device the vector designating the alternative data channel.
摘要翻译： 选择用于通信的替代数据信道的通信系统（100）具有耦合到多个替代数据通信系统（112,114,116）的基站（106），其接收针对由地址指定的选择性呼叫装置的消息。 耦合到基站（106）和多个替代数据通信系统（112,114,116）的数据调度器（104）具有分类器（404），用于将消息分类为适合于替代数据上的传输 信道，用于协调适于发送消息的备选数据通信系统的列表的控制器（402）和用于选择用于发送消息的备用数据信道的选择器（406）。 控制器（105）对具有地址和向量的选呼信号进行编码，并且发射机在控制信道上向选择呼叫设备（102）发送选呼信号，该控制信道包括用于识别选呼设备的地址， 数据通道。
-
14.发明授权公开(公告)号：US07564842B2
公开(公告)日：2009-07-21
申请号：US10882808
申请日：2004-07-01
申请人： Edgar Herbert Callaway, Jr. , Lance Eric Hester , Vernon Anthony Allen , Jasmeet Chhabra , Lakshman Krishnamurthy , Ralph M. Kling , Zafer Sahinoglu , Philip V. Orlik , Phil Jamieson , Phil Rudland , Zachary Smith , Myung J. Lee , Xuhui Hu , Yong Liu , Chunhui Zhu
发明人： Edgar Herbert Callaway, Jr. , Lance Eric Hester , Vernon Anthony Allen , Jasmeet Chhabra , Lakshman Krishnamurthy , Ralph M. Kling , Zafer Sahinoglu , Philip V. Orlik , Phil Jamieson , Phil Rudland , Zachary Smith , Myung J. Lee , Xuhui Hu , Yong Liu , Chunhui Zhu
CPC分类号： H04L45/48 , H04L45/52 , H04W40/02 , H04W40/24 , H04W84/10 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/30
摘要： The disclosure is a routing method for data in a personal area network. The personal area network includes a plurality of nodes. The method includes receiving a frame at a node, determining whether the node contains a routing table entry for the frame destination, and when the node contains a routing table entry, determining a route for the frame based on a first routing protocol. The method further includes, when the node does not contain a routing table entry for the frame destination, determining whether a route should be discovered for the frame destination, and when a route should not be discovered, determining a route for the frame based on a second routing protocol.
摘要翻译： 本公开是用于个人区域网络中的数据的路由方法。 个人区域网络包括多个节点。 该方法包括在节点处接收帧，确定节点是否包含用于帧目的地的路由表条目，以及当节点包含路由表条目时，基于第一路由协议来确定该帧的路由。 该方法还包括：当节点不包含用于帧目的地的路由表条目时，确定是否应为帧目的地发现路由，并且当不发现路由时，基于 第二路由协议。
-
15.发明授权Method and apparatus for automatic simulcast correction for a correlation detector 失效用于相关检测器的自动联播校正的方法和装置公开(公告)号：US06571083B1
公开(公告)日：2003-05-27
申请号：US09306663
申请日：1999-05-05
申请人： Clinton C Powell, II , James David Hughes , Chun-Ye Susan Chang , Christopher T. Thomas , Mahibur Rahman , Edgar Herbert Callaway, Jr. , James A. Kimball
发明人： Clinton C Powell, II , James David Hughes , Chun-Ye Susan Chang , Christopher T. Thomas , Mahibur Rahman , Edgar Herbert Callaway, Jr. , James A. Kimball
IPC分类号： H04B100
CPC分类号： H04W88/022
摘要： An automatic simulcast correction method (300) for a selective call receiver (100) includes the steps of measuring a received signal (304) for a received signal strength indication measurement and then determining if a protocol indicates a simulcast signal (310). If the received signal strength indication measurement is above a predefined threshold and the protocol indicates the simulcast signal, then the selective call receiver is optimized for simulcast delay spread distortion (312). If the received signal strength indication measurement is below a predefined threshold or the protocol does not indicate the simulcast signal, then the selective call receiver is optimized for static sensitivity (314).
摘要翻译： 用于选呼接收机（100）的自动同步播放校正方法（300）包括以下步骤：测量接收信号强度指示测量的接收信号（304），然后确定协议是否指示同播信号（310）。 如果接收到的信号强度指示测量值高于预定阈值，并且协议指示同播信号，则选择呼叫接收机被优化用于联播延迟扩展失真（312）。 如果接收到的信号强度指示测量值低于预定阈值，或该协议不指示同播信号，则选择呼叫接收机针对静态灵敏度进行了优化（314）。
-
公开(公告)号：US06259902B1
公开(公告)日：2001-07-10
申请号：US09181760
申请日：1998-10-29
IPC分类号： H04B118
摘要： A dual channel receiver (100) includes a front end bandpass filter (120) that has a front end bandwidth, a first mixer (130), a second mixer (135), and two essentially identical receiver back ends (190, 195). The front end bandpass filter splits a received signal into a first signal (121) and a second signal (122) of essentially equal signal strengths and provides out of band isolation between first and second signal outputs (123, 124). The first mixer is coupled to the first signal and to a high side injection signal (131), and generates a first mixer output signal (132). The second mixer is coupled to the second signal and to a low side injection signal (136), and generates a second mixer output signal (137). Each of the two essentially identical receiver back ends is coupled to one of the first and second mixer output signals.
摘要翻译： 双通道接收器（100）包括具有前端带宽的前端带通滤波器（120），第一混频器（130），第二混频器（135）和两个基本相同的接收器后端（190,195）。 前端带通滤波器将接收到的信号分离成基本上相等的信号强度的第一信号（121）和第二信号（122），并提供第一和第二信号输出（123,124）之间的带外隔离。 第一混频器耦合到第一信号和高端注入信号（131），并产生第一混频器输出信号（132）。 第二混频器耦合到第二信号和低侧注入信号（136），并产生第二混频器输出信号（137）。 两个基本相同的接收器后端中的每一个耦合到第一和第二混频器输出信号中的一个。
-
公开(公告)号：US6055436A
公开(公告)日：2000-04-25
申请号：US10043
申请日：1998-01-20
CPC分类号： H04W88/022
摘要： A circuit (350) for detecting simulcast channel conditions includes a symbol center averaging circuit (308) for providing a center count of excursions above and below at least a first predetermined threshold and for providing a moving average of the center count over a predetermined number of symbol periods and a symbol edge averaging circuit (310) for providing an edge count of excursions above and below at least a second predetermined threshold and for providing a moving average of the edge count over a predetermined number of symbol periods. Finally, the circuit further includes a comparison circuit (360) programmed to receive and compare the moving average of the center count and the moving average of the edge count to provide a control signal (380) for simulcast detection.
摘要翻译： 用于检测联播信道条件的电路（350）包括符号中心平均电路（308），用于提供高于和低于第一预定阈值的偏移的中心计数，并且用于提供超过预定数量的中心计数的移动平均值 符号周期和符号边缘平均电路（310），用于提供高于和低于至少第二预定阈值的偏移的边缘计数，并且用于在预定数量的符号周期上提供边缘计数的移动平均。 最后，电路还包括编程为接收和比较中心计数的移动平均值和边缘计数的移动平均值的比较电路（360），以提供用于联播检测的控制信号（380）。
-
公开(公告)号：US5678223A
公开(公告)日：1997-10-14
申请号：US399785
申请日：1995-03-07
CPC分类号： H03J7/02 , H03J1/0008 , H04B1/30
摘要： A receiver circuit (10), and method for automatic frequency control of a receiver circuit (10) suitable for receiving a radio frequency (RF) signal, featuring determination of at least one parameter other than a frequency error of a signal which is mixed with the RF signal received by the receiver circuit; and adjusting the frequency of the signal which is mixed with the RF signal based on the frequency error if the at least one parameter satisfies a predetermined criterion.
摘要翻译： 一种接收机电路（10），以及适用于接收射频（RF）信号的接收机电路（10）的自动频率控制方法，其特征在于确定除了混合了信号的信号的频率误差之外的至少一个参数 由接收机电路接收的RF信号; 以及如果所述至少一个参数满足预定标准，则基于所述频率误差来调整与所述RF信号混合的信号的频率。
-
公开(公告)号：US06862433B2
公开(公告)日：2005-03-01
申请号：US09777767
申请日：2001-02-06
摘要： A wireless information device (30) receives and processes a message (32) within a wireless information communication system (10). The wireless information device (30) includes an antenna system (62), a radio frequency switch (80), a controller (84) and a display (60). The antenna system has a plurality of antennas for receiving the message (32). The radio frequency switch (80) activates a first antenna (64) of the plurality of antennas as an active antenna (116) in response to an antenna control signal (98) sent from the controller (84). The antenna control signal (98) is generated by the controller (84) in response to the determination of the display orientation of the display (60).
摘要翻译： 无线信息设备（30）接收并处理无线信息通信系统（10）内的消息（32）。 无线信息装置（30）包括天线系统（62），射频开关（80），控制器（84）和显示器（60）。 天线系统具有用于接收消息（32）的多个天线。 响应于从控制器（84）发送的天线控制信号（98），射频开关（80）激活多个天线中的第一天线（64）作为有源天线（116）。 响应于显示器（60）的显示取向的确定，由控制器（84）产生天线控制信号（98）。
-
20.发明授权公开(公告)号：US06711380B1
公开(公告)日：2004-03-23
申请号：US09578186
申请日：2000-05-25
IPC分类号： H04B500
CPC分类号： H04W16/14 , H04B1/1027 , H04W84/18 , H05B6/688
摘要： A microwave appliance (10) designed to communicate with a plurality of communication devices (11,13, & 15) within a piconet (30) includes a transmitter (24) for communicating with the plurality of communication devices within the piconet; and a processor (22). The processor is programmed to communicate (102) to a master within the piconet about operating information of the microwave appliance, delay bias (104) to a microwave source within the microwave appliance for a predetermined time upon a user request for microwave appliance operation and then return (108) to a normal operating condition.
摘要翻译： 设计成与微微网（30）内的多个通信设备（11,13和15）进行通信的微波设备（10）包括用于与微微网内的多个通信设备进行通信的发射器（24） 和处理器（22）。 所述处理器被编程为在用户微波设备操作请求之后，在微微网内关于微波设备的操作信息（104）向微波设备内的微波源延迟预定时间的延迟偏置（104）与微微网内的主设备通信（102） 返回（108）到正常工作状态。
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.096 秒)
