Method and apparatus for dynamic spectrum allocation
    11.
    发明授权
    Method and apparatus for dynamic spectrum allocation 有权
    动态频谱分配的方法和装置

    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

    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。

    Communication system and method for selecting alternative frequencies
    12.
    发明授权
    Communication system and method for selecting alternative frequencies 失效
    用于选择替代频率的通信系统和方法

    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。

    Dual channel superheterodyne receiver
    15.
    发明授权
    Dual channel superheterodyne receiver 有权
    双通道超外差接收机

    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

    CPC分类号: H04B1/28 H04B1/18

    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。

    Method and apparatus for detecting simulcast channel conditions
    16.
    发明授权
    Method and apparatus for detecting simulcast channel conditions 失效
    用于检测联播信道条件的方法和装置

    公开(公告)号:US6055436A

    公开(公告)日:2000-04-25

    申请号:US10043

    申请日:1998-01-20

    IPC分类号: H04W88/02 H04B7/005 H04B15/00

    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)。

    Media access control and distributed data processing using mediation devices in an asynchronous network
    18.
    发明授权
    Media access control and distributed data processing using mediation devices in an asynchronous network 失效
    使用异步网络中的中介设备的媒体访问控制和分布式数据处理

    公开(公告)号:US07492773B2

    公开(公告)日:2009-02-17

    申请号:US10443428

    申请日:2003-05-22

    IPC分类号: H04L12/56

    摘要: A low power consumption protocol for low power communication devices attached to an asynchronous network is described. In this protocol, one or more mediation devices (MDs) facilitate data processing capabilities in the network, whether in a dedicated MD or distributed MD network environment. These capabilities may be provided by the functions of packet caching, removal of replicated packets, and multiple communication types performed by the one or more MDs in accordance with a common synchronization schedule (2510) managed by the one or more MDs and communicated to other devices in the network (2530).

    摘要翻译: 描述了连接到异步网络的低功率通信设备的低功耗协议。 在该协议中,一个或多个中介设备(MD)促进网络中的数据处理能力,无论是在专用MD还是分布式MD网络环境中。 这些功能可以通过分组缓存,删除复制分组的功能以及由一个或多个MD执行的多种通信类型来提供,所述多个通信类型根据由一个或多个MD管理的通用同步调度(2510)并被传送到其他设备 在网络(2530)。

    Antenna system for a wireless information device
    19.
    发明授权
    Antenna system for a wireless information device 有权
    用于无线信息设备的天线系统

    公开(公告)号:US06862433B2

    公开(公告)日:2005-03-01

    申请号:US09777767

    申请日:2001-02-06

    CPC分类号: H01Q3/24 H01Q1/241 H01Q21/28

    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)。

    Method and apparatus for reducing interference effects caused by microwave sources
    20.
    发明授权
    Method and apparatus for reducing interference effects caused by microwave sources 有权
    减少微波源干扰影响的方法和装置

    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

    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。