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1. 发明授权

US5392278A Distributed multisite system architecture 失效
标题翻译：分布式多站点系统架构
公开(公告)号：US5392278A
公开(公告)日：1995-02-21
申请号：US658844
申请日：1991-02-22
申请人： James L. Teel , Philip C. Gulliford , Charles P. Brame , Wim A. Imron
发明人： James L. Teel , Philip C. Gulliford , Charles P. Brame , Wim A. Imron
IPC分类号： H04W4/10 , H04W84/08 , H04J3/16 , H04Q11/08
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： A multisite network switch for a series of RF digital trunked radio transceivers and dispatcher consoles. Each transceiver covers a certain site area. The switch establishes audio communications between different sites and various dispatcher consoles. The multisite switch has a distributed architecture in which each node of the switch is supported by a microprocessor controlled card. Each node interfaces with a site, dispatcher console, system manager or other system component.
摘要翻译：用于一系列RF数字集群无线电收发器和调度控制台的多站点网络交换机。每个收发器覆盖某个站点区域。交换机建立不同站点和各种调度台控制台之间的音频通信。多站点交换机具有分布式架构，其中交换机的每个节点由微处理器控制的卡支持。每个节点与站点，调度台，系统管理器或其他系统组件接口。

2. 发明授权

US5287354A Data protocol and monitoring system for RF trunking multisite switch global serial channel 失效
标题翻译：数据协议和监控系统，用于RF集群多站点交换全局串行通道
公开(公告)号：US5287354A
公开(公告)日：1994-02-15
申请号：US658641
申请日：1991-02-22
申请人： James L. Teel, Jr. , Philip C. Gulliford , Charles P. Brame , Wim A. Imron
发明人： James L. Teel, Jr. , Philip C. Gulliford , Charles P. Brame , Wim A. Imron
IPC分类号： H04W4/10 , H04W84/08 , H04J3/12
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： A multisite network switch for a series of RF digital trunked radio transceivers and dispatcher consoles. Each transceiver covers a certain site area. The switch establishes audio communications between different sites and various dispatcher consoles. The multisite switch has a distributed architecture in which each node of the switch is supported by a microprocessor controlled card. The nodes are connected by audio buses and a dedicated message bus. The messages on the message bus allow the nodes to communicate control information regarding the status of slots on the audio bus, the members in groups, the location of radio units, call types and a host of other information needed to operate the switch.
摘要翻译：用于一系列RF数字集群无线电收发器和调度控制台的多站点网络交换机。每个收发器覆盖某个站点区域。交换机建立不同站点和各种调度台控制台之间的音频通信。多站点交换机具有分布式架构，其中交换机的每个节点由微处理器控制的卡支持。节点通过音频总线和专用消息总线连接。消息总线上的消息允许节点传送关于音频总线，组中的成员，无线电单元的位置，呼叫类型以及操作交换机所需的其他信息的主机的状态的控制信息。

3. 发明授权

US5566388A RF trunking multisite switch configuration and diagnostics interface 失效
标题翻译： RF集群多站点交换机配置和诊断界面
公开(公告)号：US5566388A
公开(公告)日：1996-10-15
申请号：US183250
申请日：1994-01-19
申请人： Charles P. Brame , Timothy F. Cree , Stephen R. Downs , Philip C. Gulliford , Wim A. Imron , James L. Teel, Jr.
发明人： Charles P. Brame , Timothy F. Cree , Stephen R. Downs , Philip C. Gulliford , Wim A. Imron , James L. Teel, Jr.
IPC分类号： H04W4/10 , H04W84/08 , H04J1/14
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： In a multisite radio frequency (RF) signal transmission system, a multisite switch routes audio and data information throughout the system. This switch has a node through which a system manager and system operator can configure and diagnose each site, console and channel in the (RF) system.
摘要翻译：在多站点射频（RF）信号传输系统中，多站点交换机在整个系统中路由音频和数据信息。该交换机具有一个节点，系统管理员和系统操作员可以通过该节点配置和诊断（RF）系统中的每个站点，控制台和通道。

4. 发明授权

US5253253A Message bus slot update/idle control in RF trunking multisite switch 失效
标题翻译：消息总线插槽更新/空闲控制在RF集群多站点交换机
公开(公告)号：US5253253A
公开(公告)日：1993-10-12
申请号：US658640
申请日：1991-02-22
申请人： Charles P. Brame , Timothy F. Cree , Philip C. Gulliford , Wim A. Imron , Satish Kappagantula , James L. Teel, Jr.
发明人： Charles P. Brame , Timothy F. Cree , Philip C. Gulliford , Wim A. Imron , Satish Kappagantula , James L. Teel, Jr.
IPC分类号： H04W84/08 , H04J3/16
CPC分类号： H04W84/08
摘要： A multisite network switch for a series of RF digital trunked radio transceivers and dispatcher consoles. The switch establishes audio communications between different sites and various dispatcher consoles. The multisite switch has a distributed architecture in which each node of the switch is supported by a microprocessor controlled card. This card has a communications controller that routes messages between the internal switch bus, an outside port and an interface processor that controls the audio slots in the switch. The communications controller receives control messages from the switch bus, but discards redundant slot status messages by checking a slot status bit map stored in a memory unit on the card.
摘要翻译：用于一系列RF数字集群无线电收发器和调度控制台的多站点网络交换机。交换机建立不同站点和各种调度台控制台之间的音频通信。多站点交换机具有分布式架构，其中交换机的每个节点由微处理器控制的卡支持。该卡具有通信控制器，其在内部交换总线，外部端口和控制交换机中的音频插槽的接口处理器之间路由消息。通信控制器从交换总线接收控制消息，但是通过检查存储在卡上的存储器单元中的时隙状态位图来丢弃冗余插槽状态消息。

5. 发明授权

US5241537A Conventional base station interface architecture for RF trunking multisite switch 失效
标题翻译：用于RF集群多站点交换机的常规基站接口架构
公开(公告)号：US5241537A
公开(公告)日：1993-08-31
申请号：US709987
申请日：1991-06-04
申请人： Philip C. Gulliford , Charles P. Brame , Wim A. Imron
发明人： Philip C. Gulliford , Charles P. Brame , Wim A. Imron
IPC分类号： H04W4/10 , H04W84/08
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： An interface for a conventional base station into a digitally trunked network of RF communications systems acts a pseudo-down link from a multisite switch to a trunked site controller. The interface monitors the conventional channels from the base station and sends a channel assignment message to the multisite switch when it detects a voice signal. The channel assignment message notifies the trunked RF systems that a new call is active so that each system can assign a trunked working channel to the conventional call. Similarly, the multisite switch sends a channel request when a trunked call is to be broadcast over a conventional channel. The interface keys the channel and couples the channel to the trunked call.
摘要翻译：用于常规基站进入RF通信系统的数字集群网络的接口起到从多站点交换机到集群站点控制器的伪向下链路的作用。该接口监视来自基站的常规信道，并且当其检测到语音信号时，向多站点交换机发送信道分配消息。信道分配消息通知中继的RF系统新的呼叫是活动的，使得每个系统可以为传统呼叫分配中继工作信道。类似地，当通过常规信道广播中继呼叫时，多站点交换机发送信道请求。该接口键入通道并将通道耦合到中继呼叫。

6. 发明授权

US5699354A Audio routing within trunked radio frequency multisite switch 失效
标题翻译：集群无线射频多站点交换机内的音频路由
公开(公告)号：US5699354A
公开(公告)日：1997-12-16
申请号：US336204
申请日：1994-11-04
申请人： Philip C. Gulliford , Wim A. Imron , James L. Teel
发明人： Philip C. Gulliford , Wim A. Imron , James L. Teel
IPC分类号： H04W4/10 , H04W84/08 , H04B3/36
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： A distributed trunked radio frequency (RF) switching network (multisite switch) distributes audio routing control information and digitized audio signals to communications interface modules (nodes) throughout the multisite switch, thus avoiding a centralized mixing matrix, increasing fault tolerance and providing low routing request latency time. Each audio source, (for example, RF repeater transmitter, dispatch console microphone) is preassigned an audio channel on a time division multiplexed (TDM) digitized "audio network" or bus within the switch. The audio sources continually provide digitized audio signals to all other nodes within the switch over the assigned TDM bus channels. Audio routing is performed at the audio destinations (for example, interface modules/nodes associated with RF repeater receivers, dispatch console speakers) by selectively "listening" to active TDM network channels. In the preferred embodiment, audio is routed undirectionally on an "as needed" basis (for example, in response to radio transceiver "keys" and "unkeys"), and audio routing pathways may change dynamically during an on-going call.
摘要翻译：分布式中继射频（RF）交换网络（多站点交换机）将音频路由控制信息和数字化音频信号分配到整个多站点交换机的通信接口模块（节点），从而避免集中式混合矩阵，增加容错能力并提供低路由请求延迟时间每个音频源（例如，RF中继器发射机，调度台麦克风）在交换机内的时分复用（TDM）数字化“音频网络”或总线上预先分配音频信道。音频源通过分配的TDM总线通道连续向交换机内的所有其他节点提供数字化音频信号。通过选择性地“收听”到有效的TDM网络信道，在音频目的地（例如，与RF中继器接收机，调度台扬声器相关联的接口模块/节点）上执行音频路由。在优选实施例中，音频在“根据需要”的基础上（例如，响应于无线电收发器“键”和“钥匙”）被不定向地路由，并且音频路由路径可以在正在进行的呼叫期间动态地改变。

7. 发明授权

US5276442A Dynamic address allocation within RF trunking multisite switch 失效
标题翻译： RF集群多站点交换机内的动态地址分配
公开(公告)号：US5276442A
公开(公告)日：1994-01-04
申请号：US658843
申请日：1991-02-22
申请人： Timothy F. Cree , Charles P. Brame , Wim A. Imron
发明人： Timothy F. Cree , Charles P. Brame , Wim A. Imron
IPC分类号： H04W84/08 , H04Q3/00 , H04J3/24
CPC分类号： H04W84/08
摘要： A multisite network switch for a series of RF digital trunked radio transceivers and dispatcher consoles. The switch establishes audio communications between different sites and various dispatcher consoles. The multisite switch has a distributed architecture in which each node of the switch is supported by a microprocessor controlled card. These nodes perform all of the logical functions of the switch. When the switch is booted-up or reset, each node executes a dynamic address generation algorithm to select a unique address and resolve any address conflicts with other nodes.
摘要翻译：用于一系列RF数字集群无线电收发器和调度控制台的多站点网络交换机。交换机建立不同站点和各种调度台控制台之间的音频通信。多站点交换机具有分布式架构，其中交换机的每个节点由微处理器控制的卡支持。这些节点执行交换机的所有逻辑功能。当交换机启动或重置时，每个节点执行动态地址生成算法来选择唯一的地址并解决与其他节点的任何地址冲突。

8. 发明授权

US5365512A Multisite trunked RF communication system with reliable control messaging network 失效
标题翻译：多站点集群RF通信系统具有可靠的控制消息传递网络
公开(公告)号：US5365512A
公开(公告)日：1994-11-15
申请号：US84944
申请日：1993-07-02
申请人： Edward A. Combs , Dennis M. Maddox , Wim A. Imron
发明人： Edward A. Combs , Dennis M. Maddox , Wim A. Imron
IPC分类号： H04W84/08 , H04J3/14 , G06F11/20
CPC分类号： H04W84/08
摘要： A distributed switching network (switch) routes audio and control signals throughout the switch from various audio sources to one or more audio destinations. Audio sources such as mobile/portable radio units (via RF repeater transmitters), dispatch consoles, and landline telephone subscribers (via the central telephone switching network) are preassigned and routed onto an audio channel (i.e. a time slot) on a time division multiplexed (TDM) audio bus through a corresponding node. Each microprocessor controlled node is connected to plural control message buses provided for transferring control messages between nodes. A first supervisory node is physically connected at one end of the message buses and an end node is connected at the other end. If the end node fails to respond to a polling message from the supervisory node within a predetermined time period, the supervisory node assumes that the current messaging bus is faulty and initiates a bus switching operation to an alternate messaging bus. The supervisory and end nodes thereafter coordinate switching of all nodes in the switch to the alternate control messaging bus to insure reliable trunked RF communications over the multisite network.
摘要翻译：分布式交换网络（交换机）将整个交换机的音频和控制信号从各种音频源路由到一个或多个音频目的地。诸如移动/便携式无线电单元（经由RF中继器发射机），调度控制台和固定电话用户（经由中央电话交换网络）的音频源被预分配并且被路由到时分多路复用的音频信道（即时隙）（TDM）音频总线通过相应的节点。每个微处理器控制的节点连接到多个用于在节点之间传送控制消息的控制消息总线。第一个监督节点在消息总线的一端物理连接，另一端连接一个终端节点。如果终端节点在预定时间段内没有响应来自监督节点的轮询消息，则监督节点假定当前消息总线是故障的，并且启动到备用消息总线的总线切换操作。监督和结束节点之后协调交换机中所有节点的切换到备用控制消息总线，以确保通过多站点网络的可靠的中继RF通信。

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