Test device for analyzing communication channels in a trunked radio
system
    2.
    发明授权
    Test device for analyzing communication channels in a trunked radio system 失效
    用于分析集群无线电系统中的通信信道的测试设备

    公开(公告)号:US5361402A

    公开(公告)日:1994-11-01

    申请号:US860334

    申请日:1992-03-30

    摘要: A test device (101) for use in a trunked radio system (102) employs a received signal strength indicator (RSSI) detector (120) to analyze transmission parameters. The test device (101 ) includes a transceiver (118) for transmitting and receiving radio signals, and a channel controller (116). The test device further includes memory (117) for storing (403) data, and test control means (116) for causing the transceiver to receive (303, 406) outbound signals on active communication channels. The test device (101) then processes (303-305, 402-404) the power levels for the outbound signals, and either re-transmits (305, 307) the results, or stores (407) them in memory.

    摘要翻译: 在集群无线电系统(102)中使用的测试设备(101)采用接收信号强度指示器(RSSI)检测器(120)来分析传输参数。 测试设备(101)包括用于发送和接收无线电信号的收发器(118)和信道控制器(116)。 测试装置还包括用于存储(403)数据的存储器(117)和用于使收发器在主动通信信道上接收(303,406)出站信号的测试控制装置(116)。 然后,测试设备(101)处理(303-305,402-404)出站信号的功率电平,并重新发送(305,307)结果,或者将它们存储在存储器中。

    Method for processing subsequently received communications
    3.
    发明授权
    Method for processing subsequently received communications 失效
    随后接收的通信的处理方法

    公开(公告)号:US5335353A

    公开(公告)日:1994-08-02

    申请号:US841700

    申请日:1992-02-26

    CPC分类号: H04W72/005 H04W28/14

    摘要: In a communication system network, a central controller can more efficiently respond to communication requests in the following manner. Upon receiving a request for a multi-communication system communication by a communication unit in a first communication group, the central controller determines that at least one of the communication systems of the multi-communication system request does not have an available communication resource in it, producing a non-accessible system. Having determined that at least one communication system is non-accessible, the central controller determines the average wait period for a resource to become available in each of the non-accessible communication systems. When a communication request for a second communication group is subsequently received and requests allocation of communication resources in accessible communication systems only, the central controller processes the communication request for the second communication group when the communication request will be processed substantially within the average wait period.

    摘要翻译: 在通信系统网络中,中央控制器可以以下列方式更有效地响应通信请求。 在通过第一通信组中的通信单元接收到对多通信系统通信的请求时,中央控制器确定多通信系统请求的通信系统中的至少一个在其中没有可用的通信资源, 产生不可访问的系统。 在确定至少一个通信系统不可访问之后,中央控制器确定资源在每个不可访问的通信系统中变得可用的平均等待周期。 当随后接收到针对第二通信组的通信请求并且仅在可访问通信系统中请求分配通信资源时,当通信请求将基本上在平均等待周期内被处理时,中央控制器处理第二通信组的通信请求。

    Simulcast transmission system having automatic audio equalization
    4.
    发明授权
    Simulcast transmission system having automatic audio equalization 失效
    具有自动音频均衡的联播传输系统

    公开(公告)号:US5155859A

    公开(公告)日:1992-10-13

    申请号:US676999

    申请日:1991-03-28

    IPC分类号: H04B7/26 H04H20/67

    CPC分类号: H04H20/67 H04B7/2625

    摘要: A simulcast transmission system (150) is disclosed in which a primary (402), a first, and a second transmitter site (302) form a first communication loop (403). The first communication loop (403) has at least a first and a second audio path, each of which are associated with a path identification (ID). The first and the second path IDs are also associated with a set of transmission delay parameters which are stored (401) at both the first and the second transmitter sites. The primary transmitter site (402) detects a location of an inoperative communication link (409) within the first audio path, and switches from the first audio path to the second audio path, whereby the second audio path does not traverse the inoperative communication link. The primary transmitter site (402) then broadcasts (512) a path condition ID to the first and the second transmitter sites. The first and second transmitter sites then retrieve (514) the set of transmission delay parameters associated with the second audio path.

    摘要翻译: 公开了一种同时传播系统(150),其中初级(402),第一和第二发射机站点(302)形成第一通信环路(403)。 第一通信环路(403)具有至少第一和第二音频路径,每个路径与路径标识(ID)相关联。 第一和第二路径ID也与在第一和第二发射机站处存储(401)的一组传输延迟参数相关联。 主发送站点(402)检测第一音频路径内的不工作通信链路(409)的位置,并从第一音频路径切换到第二音频路径,由此第二音频路径不穿过不工作的通信链路。 主发射机站点(402)然后将路径条件ID广播(512)到第一和第二发射机站点。 然后,第一和第二发射机站点检索(514)与第二音频路径相关联的一组传输延迟参数。

    Simulcast broadcasting system and method
    5.
    发明授权
    Simulcast broadcasting system and method 失效
    联播广播系统和方法

    公开(公告)号:US5003617A

    公开(公告)日:1991-03-26

    申请号:US563894

    申请日:1990-08-06

    IPC分类号: H04B7/26 H04H20/67

    CPC分类号: H04H20/67 H04B7/2625

    摘要: A simulcast broadcast system wherein two signals (103 and 106) intended for simultaneous broadcast are transmitted from a source site (100) to remote sites (200) discrete from one another. At the remote sites, the two signals are separately processed, including the introduction of appropriate delay (305 and 312), prior to combining them for broadcast in conjunction with other remote sites. One or more monitoring sites (400) can also be provided to monitor reception coherence within the system and to provide operating measurement information to allow automatic control of various simulcast system parameters, including delay.

    摘要翻译: 一种同时广播系统,其中用于同时广播的两个信号(103和106)从源站点(100)发送到彼此离散的远程站点(200)。 在远程站点,两个信号被分开处理,包括引入适当的延迟(305和312),然后将它们与其他远程站点结合进行广播。 还可以提供一个或多个监视站点(400)以监视系统内的接收一致性并提供操作测量信息,以允许自动控制各种联播系统参数,包括延迟。

    Method and apparatus for communicating video information in a
communication system
    6.
    发明授权
    Method and apparatus for communicating video information in a communication system 失效
    用于在通信系统中传送视频信息的方法和装置

    公开(公告)号:US06037991A

    公开(公告)日:2000-03-14

    申请号:US756852

    申请日:1996-11-26

    IPC分类号: H04N7/14 H04N7/46 H04N7/173

    摘要: A communication system (100) employs a method and apparatus for communicating video information therein. A first communication device (e.g., 101) preferably includes a video compressor (203), a memory device (205) containing a computer program, and a modem (207). The first device receives video information from a video device (116) via the video compressor and executes the computer program to determine a priority between transmission frame rate and resolution per frame. When transmission frame rate is of higher priority, the first device transmits the video information at a first transmission frame rate via the modem to a second communication device (e.g., 102). When resolution per frame is of higher priority, the first device transmits the video information at a second transmission frame rate that is less than the first rate. The second device, upon receiving the video information, may display (113) the information or process the information for retransmission (e.g., when the second device is a video control server (104)).

    摘要翻译: 通信系统(100)采用在其中传送视频信息的方法和装置。 第一通信设备(例如,101)优选地包括视频压缩器(203),包含计算机程序的存储设备(205)和调制解调器(207)。 第一设备经由视频压缩器从视频设备(116)接收视频信息,并执行计算机程序以确定每帧的传输帧速率和分辨率之间的优先级。 当传输帧速率较高时,第一设备以第一传输帧速率通过调制解调器将视频信息发送到第二通信设备(例如,102)。 当每帧的分辨率具有较高优先级时,第一设备以小于第一速率的第二传输帧速率发送视频信息。 第二装置在接收到视频信息时可以显示(113)信息或处理用于重传的信息(例如,当第二设备是视频控制服务器(104)时)。

    Resource allocation to non-critical users
    7.
    发明授权
    Resource allocation to non-critical users 失效
    资源分配给非关键用户

    公开(公告)号:US5442634A

    公开(公告)日:1995-08-15

    申请号:US858270

    申请日:1992-03-26

    申请人: Paul J. Cizek

    发明人: Paul J. Cizek

    摘要: In a communication system having a plurality of sites (100, 101), resource allocations are monitored in the plurality of sites to identify communication resources (108) that support communications for critical members of a user group and historical information is developed regarding the communication resources. When a communication request is received from a member of a first user group, a determination is made as to whether at least one site includes only non-critical members of the first user group. A decision is made to allocate a communication resource in the non-critical-only site(s) in support of the communication request as a function of the historical information.

    摘要翻译: 在具有多个站点(100,101)的通信系统中,在多个站点中监视资源分配,以识别支持用户组的关键成员的通信的通信资源(108),并且针对通信资源开发历史信息 。 当从第一用户组的成员接收到通信请求时,确定至少一个站点是否仅包括第一用户组的非关键成员。 作为根据历史信息来决定在非关键站点中分配通信资源以支持通信请求。

    Reporting unit
    8.
    发明授权
    Reporting unit 失效
    报告单位

    公开(公告)号:US5142694A

    公开(公告)日:1992-08-25

    申请号:US383830

    申请日:1989-07-24

    IPC分类号: H04L12/56 H04W84/02

    CPC分类号: H04W84/02 H04L45/00 H04L45/42

    摘要: A RF reporting system is provided that effectively increases the coverage or serving area from an associated base station site. According to the invention, an RF communication system is arranged with a multiplicity of levels designated 0-n. The RF system has at least one base site designated as level 0 and at least one reporting unit each at levels 1-n. All units that communicate directly with a base site are designated level 1. All units that communicate directly with a level 1 unit are designated level 2. All units that communicate directly with a level 2 unit are designated level 3. This process continues to level n units, which communicate directly with level (n-1) units. With this arrangement, when the base site wishes to communicate with a desired target unit of level k, a path is created from the base site (level 0) to the target unit (level k) via intermediate units of intermediate levels 1, 2, . . . , k-2, k-1. When the target unit wishes to respond to the base site, the same path is used, but in the opposite direction.

    摘要翻译: 提供RF报告系统,其有效地从相关联的基站站点增加覆盖或服务区域。 根据本发明,RF通信系统被布置成具有指定为0-n的多个级别。 RF系统具有指定为0级的至少一个基站点和每个级别为1-n的至少一个报告单元。 与基站直接通信的所有单元均被指定为1级。与1级单元直接通信的所有单元均为2级。与2级单元直接通信的所有单元均为3级。 单位,直接与水平(n-1)单位通信。 利用这种布置,当基站希望与级别k的期望目标单元通信时,经由中间级别1,2的中间单元从基站(级别0)到目标单元(级别k)创建路径, 。 。 。 ,k-2,k-1。 当目标单元希望响应基站时,使用相同的路径,但是在相反的方向。