Frequency-division multiplexing system and method for communication having enhanced reliability in fading environments
    11.
    发明申请
    Frequency-division multiplexing system and method for communication having enhanced reliability in fading environments 有权
    用于通信的频分复用系统和方法在衰落环境中具有增强的可靠性

    公开(公告)号:US20040228271A1

    公开(公告)日:2004-11-18

    申请号:US10438086

    申请日:2003-05-14

    CPC classification number: H04L27/2601 H04L1/0618

    Abstract: Frequency-division multiplexing and demultiplexing systems and methods for use with M transmit and N receive antennas, M equaling at least two. In one embodiment, a frequency-division multiplexing system includes: (1) a differential modulator that generates MnullM unitary space-frequency signals from incoming message bits and (2) a time-frequency transformer, coupled to the differential modulator, that transforms the MnullM space-frequency signals into space-time transmit signals for the M transmit antennas.

    Abstract translation: 用于M个发射和N个接收天线的频分复用和解复用系统和方法,M等于至少两个。 在一个实施例中,频分复用系统包括:(1)差分调制器,其从输入消息比特生成M×M个单位空间频率信号;以及(2)耦合到差分调制器的时频变压器,其将MxM 将空间频率信号转换为M个发射天线的时空发射信号。

    Method and apparatus for extending optical communication
    12.
    发明申请
    Method and apparatus for extending optical communication 失效
    用于扩展光通信的方法和装置

    公开(公告)号:US20040208617A1

    公开(公告)日:2004-10-21

    申请号:US10152645

    申请日:2002-05-21

    CPC classification number: H04B10/25133 H04B10/25137

    Abstract: A method and apparatus is proposed for use in a communication system in which an optical communications path including a plurality of optical spans, each of the optical spans contributing nonlinear distortions to an optical signal passing there-through includes, providing a dispersion pre-compensation to the optical signal in the optical communications path, such that the limiting nonlinear effect that produces signal distortions for long-haul transmission is suppressed, prior to transmission through a plurality of optical spans, and providing a dispersion post-compensation to the optical signal in the optical communications path after transmission through the plurality of optical spans.

    Abstract translation: 提出了一种在通信系统中使用的方法和装置,其中包括多个光学跨度的光通信路径,每个光学跨度对通过该光学信号的光信号产生非线性失真包括:提供色散预补偿 在光通信路径中的光信号,使得在通过多个光学跨度的传输之前抑制产生用于长距离传输的信号失真的限制非线性效应,并且在光信号中提供色散后补偿 在通过多个光学跨度传输之后的光通信路径。

    Method and apparatus for optical layer network management
    13.
    发明申请
    Method and apparatus for optical layer network management 审中-公开
    光层网络管理方法与装置

    公开(公告)号:US20040208553A1

    公开(公告)日:2004-10-21

    申请号:US10188681

    申请日:2002-07-03

    CPC classification number: H04B10/0773 H04B2210/071 H04B2210/072

    Abstract: A method for optical layer management of an optical channel in an optical network includes inserting specific data patterns into a frame of an optical signal in the optical channel such that when a framing header is extracted from the optical signal, the specific data patterns are readily identifiable, the specific data patterns being indicative of respective line statuses of the optical channel. Additionally, a method for optical layer management of an optical channel in an optical network includes extracting a frame header from an optical signal in the optical channel and analyzing the optical signal for the presence of previously inserted specific data patterns, the specific data patterns being indicative of respective line statuses of the optical channel.

    Abstract translation: 一种用于光网络中的光信道的光层管理的方法包括将特定数据模式插入光信道中的光信号的帧中,使得当从光信号中提取成帧报头时,特定数据模式容易识别 特定数据模式表示光通道的各个线路状态。 另外,用于光网络中的光信道的光层管理的方法包括从光信道中的光信号中提取帧报头并分析光信号以存在先前插入的特定数据模式,特定数据模式是指示 的光通道的各个线路状态。

    Wireless media gateway with bearer path control and tone allocation
    14.
    发明申请
    Wireless media gateway with bearer path control and tone allocation 有权
    具有承载路径控制和音调分配的无线媒体网关

    公开(公告)号:US20040208132A1

    公开(公告)日:2004-10-21

    申请号:US10419609

    申请日:2003-04-21

    Abstract: A method (100) is provided for operating a media gateway (40) in a telecommunications system (A). The gateway (40) provides bearer paths for communication traffic between network segments (20, 30) via contexts (C1 . . . Cn). Each context includes a collection of terminations (T1 . . . Tn) that link the gateway (40) to the network segments and a topology that defines the bearer paths between the terminations within the context. The method includes: receiving a new topology for one of the contexts within the gateway, the received topology defining a desired pattern of bearer paths between the terminations included in the context; comparing the received topology to a current topology for the context, the current topology defining a currently existing pattern of bearer paths between the terminations included in the context; based upon the foregoing comparison, determining which terminations within the context are to be disconnected from one another; disconnecting terminations within the context from one another in accordance with the foregoing determination; comparing the received topology to the current topology for the context; based on the foregoing comparison, determining which terminations within the context are to be connected to one another; and, connecting terminations within the context to one another in accordance with the foregoing determination. Suitably, the gateway employs one or more dedicated terminations belonging to designated contexts within the gateway as multicast channels (84, 86). The multicast channels are linked to a tone source (80) that generates one or more call tones (e.g., ring tone, hold tone, etc.). Accordingly, when selected terminations in the gateway are to receive the respective call tones, they are moved to the appropriate designated context and connected to the dedicated termination.

    Abstract translation: 提供了一种用于操作电信系统(A)中的媒体网关(40)的方法(100)。 网关(40)经由上下文(C1 ... Cn)为网段(20,30)之间的通信业务提供承载路径。 每个上下文包括将网关(40)链接到网段的终止集合(T1 ... Tn),以及定义上下文中终端之间的承载路径的拓扑。 该方法包括:接收网关内的一个上下文的新拓扑,所接收的拓扑在包含在上下文中的终端之间定义所需的承载路径模式; 将接收到的拓扑与当前上下文的拓扑进行比较,当前拓扑定义了在上下文中包括的终端之间的当前存在的承载路径模式; 基于上述比较,确定上下文中的哪些终端将彼此断开; 根据上述确定在上下文之间断开终端; 将接收到的拓扑与上下文的当前拓扑进行比较; 基于上述比较,确定上下文中哪些终端将彼此连接; 以及根据上述确定将上下文中的终端彼此连接。 适当地,网关采用属于网关内的指定上下文的一个或多个专用终端作为多播信道(84,86)。 多播信道被链接到产生一个或多个呼叫音调(例如,铃声,保持音等)的音源(80)。 因此,当网关中选择的终端要接收相应的呼叫音时,它们被移动到适当的指定上下文并连接到专用终端。

    Mobile telephone answer delay system
    15.
    发明申请
    Mobile telephone answer delay system 审中-公开
    移动电话应答延迟系统

    公开(公告)号:US20040203632A1

    公开(公告)日:2004-10-14

    申请号:US10109026

    申请日:2002-03-28

    CPC classification number: H04L12/2854

    Abstract: The mobile telephone answer delay system enables a subscriber to momentarily delay receipt of an incoming call. The mobile telephone answer delay system places an incoming call on hold and provides the calling party with a prerecorded announcement in response to the mobile telephone subscriber inputting a first predetermined code in response to an incoming call indication. The recorded announcement indicates to the calling party that the subscriber is available to take the call but is momentarily unable to answer the call and will pick up shortly. The recorded announcement is repeated at predetermined intervals until the subscriber picks up the incoming call by inputting a second predetermined code.

    Abstract translation: 移动电话应答延迟系统使订户能够暂时延迟来电的接收。 移动电话应答延迟系统将来电保持并且响应于移动电话用户响应于来话呼叫指示输入第一预定代码,向主叫方提供预先记录的通知。 记录的公告向主叫方指示用户可以接听电话,但暂时无法接听电话,并将很快接听。 以预定的间隔重复记录的通知,直到用户通过输入第二预定码来接听来电。

    System and method for an optical signal monitor
    16.
    发明申请
    System and method for an optical signal monitor 有权
    光信号监视器的系统和方法

    公开(公告)号:US20040202471A1

    公开(公告)日:2004-10-14

    申请号:US10412501

    申请日:2003-04-11

    CPC classification number: H04J14/08

    Abstract: Techniques and systems for monitoring of optical signals are described. Each of a plurality of optical signals is supplied to an optical port. A port signal is generated based on each of the optical signals and each of the port signals is subjected to a time delay to create a time delayed signal, with a different time delay being present in each of the time delayed signals. The time delayed signals are multiplexed to create a multiplexed signal comprising a plurality of multiplexed signal components, each component corresponding to one of the time delayed signals and exhibiting a time delay characterizing the corresponding time delayed signal. A desired one or ones of the multiplexed signal components are selected by analysis or display by specifying a time delay present in the time delayed signal represented by the desired component, and selecting a signal component exhibiting the specified time delay.

    Abstract translation: 描述了用于监视光信号的技术和系统。 多个光信号中的每一个被提供给光端口。 基于每个光信号生成端口信号,并且每个端口信号经受时间延迟以产生时间延迟信号,在每个延时信号中存在不同的时间延迟。 时间延迟信号被多路复用以产生包括多个多路复用信号分量的多路复用信号,每个分量对应于一个时间延迟信号并呈现表征对应的时间延迟信号的时间延迟。 通过分析或显示来选择所需的一个或多个复用信号分量,通过指定由所需分量表示的时间延迟信号中存在的时间延迟,以及选择表现出指定时间延迟的信号分量。

    Methods and apparatus for allocating bandwidth to communication devices based on signal conditions experienced by the communication devices
    17.
    发明申请
    Methods and apparatus for allocating bandwidth to communication devices based on signal conditions experienced by the communication devices 有权
    基于通信设备经历的信号条件,向通信设备分配带宽的方法和装置

    公开(公告)号:US20040192323A1

    公开(公告)日:2004-09-30

    申请号:US10403729

    申请日:2003-03-31

    Abstract: Techniques and systems for allocating bandwidth in a communication channel to devices using the communication channel are described. A communication system includes a central device and one or more remote devices. The central device may transmit information to and receive information from each of the remote devices and each of the remote devices may transmit information to and receive information from the base station. The central device receives information relating to the quality of the communication channel experienced by remote device and adjusts the bandwidth allocated to each remote device based on the communication channel quality experienced by that device. The total frequency range encompassed by the communication channel may also increase or decrease as the average quality of the communication channel for all remote devices increases or decreases. Increasing the frequency range available to a device while maintaining the channel quality allows a directly proportional increase in the communication rate with the device.

    Abstract translation: 描述了将通信信道中的带宽分配给使用通信信道的设备的技术和系统。 通信系统包括中央设备和一个或多个远程设备。 中央设备可以向每个远程设备发送信息并从每个远程设备接收信息,并且每个远程设备可以向基站发送信息并从基站接收信息。 中央设备接收与远程设备所经历的通信信道的质量相关的信息,并且基于该设备经历的通信信道质量来调整分配给每个远程设备的带宽。 由于所有远程设备的通信信道的平均质量增加或减少,通信信道所包含的总频率范围也可以增加或减少。 在保持信道质量的同时增加设备可用的频率范围允许与设备的通信速率成正比地增加。

    Portable wireless gateway
    19.
    发明申请
    Portable wireless gateway 有权
    便携式无线网关

    公开(公告)号:US20040185777A1

    公开(公告)日:2004-09-23

    申请号:US10377195

    申请日:2003-02-28

    Abstract: A portable wireless network gateway aggregates bandwidth demand of different devices operating under different communications protocols. Network connectivity is provided by encapsulating data from the different devices to make the data appear to be data native to a single network. For example, the single network is a cellular wireless network. The different communications protocols include but are not limited to IEEE 802.11, IEEE 802.3, USB, cellular wireless protocols, Bluetooth, RS-232, and IEEE 11.1R.

    Abstract translation: 便携式无线网络网关聚合在不同通信协议下运行的不同设备的带宽需求。 通过封装来自不同设备的数据来提供网络连接,以使数据看起来是单个网络本机的数据。 例如,单个网络是蜂窝无线网络。 不同的通信协议包括但不限于IEEE 802.11,IEEE 802.3,USB,蜂窝无线协议,蓝牙,RS-232和IEEE 11.1R。

    Optical coupler with low loss interconnections

    公开(公告)号:US20040179780A1

    公开(公告)日:2004-09-16

    申请号:US10387667

    申请日:2003-03-13

    CPC classification number: G02B6/12011 G02B6/12016

    Abstract: An apparatus for optical coupling having a first array of individual waveguides optically communicating with a free space region at a first junction and each waveguide having a tapered region proximate the junction where a gap spacing between tapered regions of adjacent individual waveguides is substantially constant is proposed. The gap spacing is a minimum amount of space between adjacent individual waveguides. The first array of individual waveguides also has a horn region immediately proximate the tapered region and opposite the first junction with an increasing width whose maximum establishes the gap spacing.

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