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16 条记录 (耗时 0.011 秒)

    Dual-mode telephone for cordless and cellular networks
    1.
    发明公开
    Dual-mode telephone for cordless and cellular networks 失效
    Zweimodentelefonfürdrahtlose und zellulare Netzwerke

    公开(公告)号：EP0876073A3

    公开(公告)日：2000-03-01

    申请号：EP98303466.1

    申请日：1998-05-01

    申请人： AT&T Corp.

    发明人： Gerszberg, Irwin ,  Javitt, Joel I. ,  Martin, Jeffrey S. ,  Miller, Robert Raymond, II ,  Walker, Hopeton S. ,  Wallace, Edward L.

    IPC分类号： H04Q7/32 ,  H04Q7/22

    CPC分类号： H04M1/725 ,  H04M1/57 ,  H04W88/06

    摘要： A cordless telephone network for wirelessly linking with a wireless phone. The cordless telephone network may include a plurality of wireless base stations, the base stations preferrably being disposed at customer premises such as private residences and/or businesses. A wireless phone linked to the cordless telephone network may roam between the wireless base stations and/or between the cordless telephone network and any other wireless network such as a conventional cellular phone network.

    摘要翻译： 用于与无线电话无线连接的无绳电话网络。 无绳电话网络可以包括多个无线基站，优选地将基站设置在诸如私人住宅和/或商业的客户驻地处。 链接到无绳电话网络的无线电话可以在无线基站之间和/或无绳电话网络与诸如常规蜂窝电话网络的任何其它无线网络之间漫游。

    Broadband data reception system for accessing a network
    2.
    发明公开
    Broadband data reception system for accessing a network 失效
    新闻网Netzwerk Breitbanddatenempfangssystemfürden Zugriff zu einem Netzwerk

    公开(公告)号：EP0862294A2

    公开(公告)日：1998-09-02

    申请号：EP97306345.6

    申请日：1997-08-20

    申请人： AT&T Corp.

    发明人： Miller, Robert Raymond, II ,  Rudrapatna, Ashok N. ,  Russell, Jesse Eugene

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04N7/17309 ,  H04N21/43615 ,  H04N21/437 ,  H04N21/6143 ,  H04N21/6181

    摘要： Termination equipment for a WorldNet™ wireless network receives packet data from a data terminal of a DirecTV™ Settop Box. This data is directed to a recipient through a router and transmitted by wireless or coax LAN to customer premises data equipment. Replies to the network by customer premises equipment are transmitted by wireless or coax LAN to the router to a CDPD radio modem for transmission, via CDPD, to a remote termination connected to the network.

    摘要翻译： WorldNet TM无线网络的终端设备从DirecTV TM机顶盒的数据终端接收分组数据。 该数据通过路由器定向到接收者，并通过无线或同轴电缆LAN发送到客户驻地数据设备。 客户驻地设备对网络的回复由无线或同轴电缆局域网传输到路由器到CDPD无线电调制解调器，以通过CDPD传输到连接到网络的远程终端。

    Symbol switching of CDMA channels
    4.
    发明公开
    Symbol switching of CDMA channels 失效
    CDMA信道的符号的电路

    公开(公告)号：EP0806846A3

    公开(公告)日：1999-12-15

    申请号：EP97106751.7

    申请日：1997-04-23

    申请人： AT&T Corp.

    发明人： Erving, Richard Henry ,  Gerakoulis, Diakoumis Parissis ,  Miller, Robert Raymond, II

    IPC分类号： H04B7/216

    CPC分类号： H04B7/216

    摘要： A digital switch included within a satellite, processes uplink beams and the included traffic channels at a symbol level instead at a bit level. In this system the switch performs as a repeater on the per user basis and as a switch at the beam level. Individual user signals (i.e., channels) are separated from the uplink beam and recombined into the appropriate downlink beam.

    Quality of service maintenance of a wireless link in a wireless LAN
    5.
    发明公开
    Quality of service maintenance of a wireless link in a wireless LAN 审中-公开
    电子邮件地址在einem drahtlosen lokalen Netzwerk

    公开(公告)号：EP1206069A1

    公开(公告)日：2002-05-15

    申请号：EP01124289.8

    申请日：2001-10-18

    申请人： AT&T Corp.

    发明人： Chow, Albert T. ,  Kim, Jinman ,  Miller, Robert Raymond, II ,  Ying, Wenchu

    IPC分类号： H04L12/28

    CPC分类号： H04W36/30

    摘要： To provide suitable QoS in a WLAN distributing voice, data and multimedia broadband in an end-to-end context, RF link errors are monitored in real time and applied as input to recovery and corrective procedures. The performance measures considered in normally evaluating a link QoS include throughput (bandwidth), delay, jitter and bit error rate (BER) but these alone do not properly evaluate a QoS for real-time services. In the exemplary embodiment, the frame error rate (FER) is compared with a threshold to define quality. If the error threshold is exceeded recovery procedures are instituted to restore the desired signal quality. The exemplary WLAN system has a capacity for providing isochronous services, such as broadband multimedia (including high speed video) and real-time toll quality voice service, and includes real time error detection and recovery procedures to maintain a desired individualized Quality of Service (QoS) appropriate for individual services.

    摘要翻译： 为了在端到端上下文中分配语音，数据和多媒体宽带的WLAN中提供合适的QoS，RF链路错误被实时监控并作为恢复和纠正过程的输入应用。 在通常评估链路QoS时考虑的性能措施包括吞吐量（带宽），延迟，抖动和误码率（BER），但这些措施不能适当地评估实时业务的QoS。 在示例性实施例中，将帧错误率（FER）与阈值进行比较以定义质量。 如果超出错误阈值，则恢复过程恢复所需的信号质量。 示例性WLAN系统具有用于提供同步服务的能力，诸如宽带多媒体（包括高速视频）和实时长途质量语音服务，并且包括实时错误检测和恢复过程以维持所需的个性化服务质量（QoS ）适合个人服务。

    Security access system
    7.
    发明公开
    Security access system 失效
    安全门禁系统，

    公开(公告)号：EP0810559A3

    公开(公告)日：1999-04-28

    申请号：EP97108633.5

    申请日：1997-05-28

    申请人： AT&T Corp.

    发明人： Miller, Robert Raymond, II

    IPC分类号： G07C9/00

    CPC分类号： G07F7/1008 ,  G06Q20/346 ,  G07C9/00039 ,  G07C9/00103 ,  G07C9/00111

    摘要： An entry access system includes a locking mechanism enabling authorized entry at a secured entry point to a closed access area or computing device. Entry is approved in response to an interaction between an intended entrant and the entry access system that involves an interchange of multidigit numbers and use of ID and PINs for generation of a multidigit check number to establish authenticity of a request for entry.

    Composite rooftop antenna for terrestrial and satellite reception
    8.
    发明公开
    Composite rooftop antenna for terrestrial and satellite reception 失效
    Zusammengesetzte Dachantennefürterrestrischen-und satelliten Empfang

    公开(公告)号：EP0859428A2

    公开(公告)日：1998-08-19

    申请号：EP97121361.6

    申请日：1997-12-04

    申请人： AT&T Corp.

    发明人： Miller, Robert Raymond, II ,  Russell, Jesse Eugene ,  Schroeder, Robert Edward

    IPC分类号： H01Q21/28 ,  H01Q21/20 ,  H01Q9/18 ,  H01Q19/17 ,  H01Q19/06 ,  H01Q5/00

    CPC分类号： H01Q21/28 ,  H01Q5/45 ,  H01Q19/06 ,  H01Q19/17

    摘要： An antenna structure includes a plurality of vertical directed antennas mounted on an insulated cylindrical substrate. A parabolic reflecting antenna is mounted at one end of the cylindrical substrate cavity and a dielectric lens admits radiation through the cylindrical cavity to the parabolic reflector. Optical detectors are located on the cylindrical substrate periphery and exposed to optical signals through an InfraRed (IR) optical filter.

    摘要翻译： 天线结构包括安装在绝缘圆柱形基板上的多个垂直定向天线。 抛物面反射天线安装在圆柱形基板空腔的一端，并且介电透镜通过圆柱形空腔允许辐射到抛物面反射器。 光学检测器位于圆柱形基板周边，并通过InfraRed（IR）光学滤波器暴露于光信号。

    Symbol switching of CDMA channels
    9.
    发明公开
    Symbol switching of CDMA channels 失效
    Symbolschaltung von CDMAKanälen

    公开(公告)号：EP0806846A2

    公开(公告)日：1997-11-12

    申请号：EP97106751.7

    申请日：1997-04-23

    申请人： AT&T Corp.

    发明人： Erving, Richard Henry ,  Gerakoulis, Diakoumis Parissis ,  Miller, Robert Raymond, II

    IPC分类号： H04B7/216

    CPC分类号： H04B7/216

    摘要： A digital switch included within a satellite, processes uplink beams and the included traffic channels at a symbol level instead at a bit level. In this system the switch performs as a repeater on the per user basis and as a switch at the beam level. Individual user signals (i.e., channels) are separated from the uplink beam and recombined into the appropriate downlink beam.

    摘要翻译： 包括在卫星内的数字交换机以符号级而不是在位级处理上行链路波束和所包括的业务信道。 在该系统中，交换机在每个用户的基础上作为中继器执行，并且作为波束级的交换机。 单独的用户信号（即，信道）与上行链路波束分离，并重新组合成适当的下行链路波束。