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    Hybrid access system utilizing credit/done polling protocols
    12.
    发明授权
    Hybrid access system utilizing credit/done polling protocols 失效
    混合访问系统利用信用/完成轮询协议

    公开(公告)号：US5946322A

    公开(公告)日：1999-08-31

    申请号：US703767

    申请日：1996-08-27

    申请人： Eduardo J. Moura ,  Jan Maksymilian Gronski ,  Robert L. Packer ,  Robert A. Luxenberg ,  Frederick Enns

    发明人： Eduardo J. Moura ,  Jan Maksymilian Gronski ,  Robert L. Packer ,  Robert A. Luxenberg ,  Frederick Enns

    IPC分类号： H04B7/185 ,  H04H20/38 ,  H04H20/78 ,  H04H20/81 ,  H04H60/82 ,  H04J3/16 ,  H04J3/26 ,  H04L12/28 ,  H04L29/06 ,  H04L29/12 ,  H04M11/06 ,  H04N7/10 ,  H04N7/173 ,  H04N21/2381 ,  H04N21/239 ,  H04N21/24 ,  H04N21/266 ,  H04N21/437 ,  H04N21/643

    CPC分类号： H04H20/81 ,  H04B7/18523 ,  H04B7/18584 ,  H04H60/82 ,  H04J3/1682 ,  H04J3/1694 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2898 ,  H04L29/06 ,  H04L29/12009 ,  H04L61/00 ,  H04L67/42 ,  H04L69/14 ,  H04L69/161 ,  H04L69/18 ,  H04M11/06 ,  H04N21/2381 ,  H04N21/2393 ,  H04N21/2408 ,  H04N21/266 ,  H04N21/437 ,  H04N21/64322 ,  H04N7/10 ,  H04N7/17309 ,  H04N7/17345 ,  H04H20/38 ,  H04H20/78 ,  H04L69/16 ,  Y02B60/33 ,  Y10S370/911

    摘要： An asymmetric network communication system for use in a client-server environment having independent forward and return channels operating at different speeds and/or under different protocols on the same or different communication media to provide efficient utilization of shared resources. A network manager, such as a hybrid access system, effects transmission of packetized data on a forward (downstream) channel from the host server to multiple client devices coupled with a shared downstream media at 10 or more megabits per second while simultaneously providing selectable multiple lower speeds of operation on shared or dedicated return (upstream) channels from the client devices to the host server depending on bandwidth availability, bandwidth demand, service level authorization, etc. for the return channel. Forward and return channels may be located on the same or different communication medium including a CATV network, direct broadcast satellite network, television or radio RF broadcast network, wireless or mobile cellular facilities or the like. The return channel may reside on a PSTN either directly coupled with the host server or connected with the network manager for subsequent transmission to the host server. The network manager handles or controls the forward and return communication to establish interactive full-duplex real-time network sessions between the host and a selected client device. The network manager switches upstream channel assignment based on quality of signals transmitted to the host, effects changes in the upstream transmitted power based on sensed conditions, and automatically configures new client devices as they are added to the network. The system issues data transmission credits to client devices for enabling them to independently transmit data without supervision up to their allowed credit limit thereby reducing polling for channel allocation requests.

    摘要翻译： 一种在客户机 - 服务器环境中使用的非对称网络通信系统，其具有在相同或不同通信介质上以不同速度和/或不同协议操作的独立前向和返回信道，以提供共享资源的有效利用。 诸如混合接入系统的网络管理器在前向（下游）信道上从主服务器到多个客户端设备的数据传输，这些客户端设备与10个或更多兆位/秒的共享下游介质耦合，同时提供可选择的多个下层 根据返回通道的带宽可用性，带宽需求，服务级别授权等，从客户端设备到主机服务器的共享或专用返回（上游）通道的操作速度。 前向和后退信道可以位于相同或不同的通信介质上，包括CATV网络，直接广播卫星网络，电视或无线电RF广播网络，无线或移动蜂窝设施等。 返回信道可以驻留在与主机服务器直接耦合或与网络管理器连接的PSTN上，以便随后传输到主机服务器。 网络管理器处理或控制正向和返回通信，以在主机和所选择的客户端设备之间建立交互式全双工实时网络会话。 网络管理员根据发送给主机的信号质量切换上行信道分配，根据感知到的条件影响上行发送功率的变化，并在新的客户端设备添加到网络时自动配置。 系统将数据传输信用量发送到客户端设备，以使其能够独立地传输数据，而无需监控，直至其允许的信用限制，从而减少对信道分配请求的轮询。

    System and method for wireless process communication over distinct networks
    15.
    发明授权
    System and method for wireless process communication over distinct networks 有权
    用于不同网络无线进程通信的系统和方法

    公开(公告)号：US08315263B2

    公开(公告)日：2012-11-20

    申请号：US12487018

    申请日：2009-06-18

    申请人： Frederick Enns ,  Martin Zielinski ,  Jose A. Gutierrez

    发明人： Frederick Enns ,  Martin Zielinski ,  Jose A. Gutierrez

    IPC分类号： H04L12/28 ,  H04J3/16

    CPC分类号： H04L45/52 ,  H04L12/40006 ,  H04L61/106 ,  H04L67/12 ,  H04L69/08 ,  H04L2012/4026 ,  H04W4/18 ,  H04W4/80 ,  H04W40/00 ,  H04W88/16 ,  H04W92/02

    摘要： A dual-mode router for conveying process communication packets across a plurality of distinct wireless process communication networks is provided. The router includes wireless communication circuitry and a controller coupled to the wireless communication circuitry. The wireless communication circuitry is configured to interact with signals from each of the plurality of distinct wireless process communication networks. The controller is configured to adapt process communication packets from a first distinct wireless process communication network for transmission over a second distinct wireless process communication network. Methods for configuring the distinct wireless process communication networks and relaying process packets over the distinct wireless process communication networks are also provided.

    摘要翻译： 提供了用于在多个不同的无线过程通信网络之间传送过程通信分组的双模式路由器。 路由器包括无线通信电路和耦合到无线通信电路的控制器。 无线通信电路被配置为与来自多个不同的无线过程通信网络中的每一个的信号进行交互。 控制器被配置为使来自第一不同的无线进程通信网络的进程通信分组适应于在第二不同的无线进程通信网络上的传输。 还提供了用于在不同的无线进程通信网络上配置不同的无线进程通信网络和中继进程分组的方法。

    Packet framing using cyclic redundancy checking
    19.
    发明授权
    Packet framing using cyclic redundancy checking 失效
    使用循环冗余校验的分组成帧

    公开(公告)号：US5072449A

    公开(公告)日：1991-12-10

    申请号：US481709

    申请日：1990-02-15

    申请人： Frederick Enns ,  J. Paul O'Hare

    发明人： Frederick Enns ,  J. Paul O'Hare

    IPC分类号： H04L7/04 ,  H04L29/06 ,  H04L29/08

    CPC分类号： H04L29/06 ,  H04L7/048 ,  H04L69/324

    摘要： Packets transported over a serial data stream need to have their start and stop information encoded so that they can be parsed by the receiving device. Techniques used in various standards require extra bandwidth to carry this information. For framed data streams like T1, proprietary protocols have used the frame structure to mark packet boundaries. Both types of solutions are undesirable for unframed, long distance data streams like the CCITT G.703 2.048 Mbps unframed service, subrate trunks, or fractional T1 services. The present invention provides a packet framing method that uses the Cyclic Redundancy Check (CRC) found in most packet formats. The protocol does not require any extra bandwidth and can work with any serial data stream physical layer.

    摘要翻译： 通过串行数据流传输的数据包需要对其起始和停止信息进行编码，以便它们可以由接收设备进行解析。 在各种标准中使用的技术需要额外的带宽来承载这些信息。 对于诸如T1的成帧数据流，专有协议使用帧结构来标记分组边界。 两种类型的解决方案对于不成帧的长距离数据流（如CCITT G.703 2.048 Mbps非成帧服务，子速率中继线或分数T1服务）都是不希望的。 本发明提供了一种使用在大多数分组格式中发现的循环冗余校验（CRC）的分组成帧方法。 该协议不需要任何额外的带宽，并且可以与任何串行数据流物理层一起工作。