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    System and method to dynamically redistribute timing and synchronization in a packet switched network
    22.
    发明授权
    System and method to dynamically redistribute timing and synchronization in a packet switched network 有权
    在分组交换网络中动态地重新分配定时和同步的系统和方法

    公开(公告)号：US09219562B2

    公开(公告)日：2015-12-22

    申请号：US14272978

    申请日：2014-05-08

    Applicant: NOKIA SOLUTIONS AND NETWORKS OY

    Inventor： David Chen

    IPC: H01J3/06 ,  H04J3/06

    CPC classification number: H04J3/0658 ,  H04J3/0641 ,  H04J3/0644 ,  H04J3/0679

    Abstract: Systems, methods, apparatuses, and computer program products for dynamically redistributing timing and synchronization in a packet switched network are provided. One method includes creating, by a slave node, a peer list comprising an identifier of at least one peer slave node that shares a same master node as the slave node or that has a certain predefined affinity with the slave node. The method may also include announcing a holdover time of the slave node to the at least one peer slave node, and, when a predefined event occurs, announcing to the at least one peer slave node that the slave node is taking on a mini-master role for at least the announced holdover time.

    Abstract translation: 提供了用于在分组交换网络中动态重新分配定时和同步的系统，方法，设备和计算机程序产品。 一种方法包括由从节点创建包括与从节点共享相同主节点的至少一个对等从节点的标识符或与从节点具有一定预定义关联的对等体列表。 所述方法还可以包括向所述至少一个对等从节点通知所述从节点的保持时间，以及当预定事件发生时，向所述至少一个对等从节点向所述从节点通知所述从节点正在接收的小型主节点 至少起到宣布的停留时间的作用。

    DEVICE AND METHOD FOR MONITORING TWO TIME BASES OF TWO COMMUNICATION DEVICES WITH THE AID OF A COMPUTER
    23.
    发明专利
    DEVICE AND METHOD FOR MONITORING TWO TIME BASES OF TWO COMMUNICATION DEVICES WITH THE AID OF A COMPUTER 未知

    公开(公告)号：AU2022293912A1

    公开(公告)日：2024-01-18

    申请号：AU2022293912

    申请日：2022-05-30

    Applicant: SIEMENS MOBILITY GMBH

    Inventor： DE STEFANO ERNESTO ,  FORTUNATI DANIEL ,  NAYAK BHABANI

    IPC: G06F1/12 ,  B61L27/53 ,  B61L27/70 ,  H01J3/06 ,  H04L7/00

    Abstract: The invention relates to a method, as well as a device and a computer program, for monitoring a first time base of a first communication device and a second time base of a second communication device with the aid of a computer. In a first sequence, Christian's algorithm is used in measurement steps (n) to calculate time offset intervals of a time offset between the time bases. In a second sequence, the maximally possible drift (Ωo) of the time offset is ascertained multiple times for two measurement steps (n, n+x) while taking into consideration the lower limit of the time offset interval for the previous measurement step and the upper limit of the time offset interval for the subsequent measurement step, and a minimally possible drift (Ωu) is ascertained while taking into consideration the upper limit of the time offset interval for the previous measurement step and the lower limit of the time offset interval for the subsequent measurement step. The upper limit of a drift interval (CDW) is calculated while taking into consideration the maximally possible drift, and the lower limit of the drift interval is calculated while taking into consideration the minimally possible drift. In a third sequence, the lowest upper limit is defined as the upper limit of a resulting drift interval (RCDW) for the relative drift from multiple drift intervals (CDW), and the highest lower limit is defined as the lower limit of the resulting drift interval (RCDW) with advantageously narrow limits for the relative drift.

    A METHOD OF SYNCHRONIZING AND CHANNEL ESTIMATION IN A TDMA RADIO COMMUNICATION SYSTEM
    24.
    发明专利
    A METHOD OF SYNCHRONIZING AND CHANNEL ESTIMATION IN A TDMA RADIO COMMUNICATION SYSTEM 未知

    公开(公告)号：MY130197A

    公开(公告)日：2007-06-29

    申请号：MYPI9300291

    申请日：1993-02-20

    Applicant: ERICSSON TELEFON AB L M

    Inventor： SKOLD JOHAN

    IPC: H01J3/06 ,  H04B7/24 ,  H04B7/26 ,  H04J3/00 ,  H04J3/06 ,  H04L7/04 ,  H04L7/08 ,  H04W56/00

    Abstract: THE INVENTION RELATES TO A METHOD OF SYNCHRONIZING A RECEIVED SIGNAL FRAME IN A TDMA RADIO SYSTEM WITH A LOCALLY GENERATED (TR) TRAINING SEQUENCE AND OF DETERMINING A CHANNEL ESTIMATE BASED ON THE COMPARISON OF THE RECEIVED SIGNAL FRAME AND THE LOCALLY GENERATED TRAINING SEQUENCE. A FIRST VECTOR COMPRISING M CORRELATION VALUES IS CALCULATED. IN THIS VECTOR THE POSITION MW OF THE CENTRE OF ENERGY IS DETERMINED. A SECOND VECTOR COMPRISING N CONSECUTIVE CORRELATION VALUES DISTRIBUTED AROUND THE CENTRE OF ENERGY MW IS CHOSEN TO FORM THE CHANNEL ESTIMATE. THE CENTRE OF ENERGY IN THE SECOND VECTOR CAN BE CHOSEN AS SYNCHRONIZING POSITION.(FIG. 4)

    Electron emitter device for e.g. display
    25.
    发明专利
    Electron emitter device for e.g. display 未知

    公开(公告)号：DE19802779A1

    公开(公告)日：1998-08-06

    申请号：DE19802779

    申请日：1998-01-26

    Applicant: SMITHS INDUSTRIES PLC ,  WANG

    Inventor： FOX NEIL ANTHONY ,  WANG WANG NANG

    IPC: H01J1/304 ,  H01J3/02 ,  H01J31/12 ,  H01J29/50 ,  G09F9/33 ,  H01J3/06

    Abstract: The electron emitter device (20) has an electron emitter. A gate electrode (25) is located above the emitter and defines a region through which electrons are emitted from the device. A magnetic device is located in the region of the gate electrode. The magnetic device increases the confinement of the electrons within a central part of the region. The gate electrode is located above the magnetic device. The magnetic device is provided by a layer of magnetic material (24) with an orifice aligned with the region defined by the gate electrode. An emitter includes a substrate (21) with a layer of insulating material (23). The substrate supports the electron emitter and the layer of insulating material supports the layer of magnetic material. The combined thickness of the layer of magnetic material and the insulating layer is about 1 micron.

    26.
    发明专利
    未知

    公开(公告)号：MX169964B

    公开(公告)日：1993-08-03

    申请号：MX1173388

    申请日：1988-06-01

    Applicant: ALCATEL NV

    Inventor： ZSECHENYI KALMAN

    IPC: H04J3/06 ,  H04L7/02 ,  H04L7/04 ,  H04L7/08 ,  H04L5/22 ,  H01J3/06

    Abstract: A fast adjustment of sampling clock phase may be accomplished by calculating the values of the pre-oscillations and post-oscillations that would have been present at each sampling instant to form a correction value so that they may then be subtracted from the measured sample value and only the influence of the distorted unique word remains. Usable control information for readjusting the phase of the sampling clock may thus be derived after only one frame synchronization word has been detected. In a preferred embodiment, the required pre-oscillation and post-oscillation values are derived from the regenerated character data; rather than correcting the sample values themselves, correction values are derived which are used to correct quantities derived from the sample values. The transmission coefficients of the transmission path used to derive the required pre-oscillation and post-oscillation values from the regenerated characters may be either established a priori or derived from the equalization coefficients of an otherwise conventional adaptive equalizer.

    Mobile communication terminal with GPS function, positioning system, operation control method, and program
    28.
    发明授权
    Mobile communication terminal with GPS function, positioning system, operation control method, and program 有权
    具有GPS功能的移动通信终端，定位系统，操作控制方法和程序

    公开(公告)号：US08345658B2

    公开(公告)日：2013-01-01

    申请号：US12443041

    申请日：2007-09-11

    Applicant: Yoshihisa Manzen

    Inventor： Yoshihisa Manzen

    IPC: H01J3/06 ,  H04J3/06

    CPC classification number: G01S19/235 ,  G01S19/24

    Abstract: The present invention is to provide a mobile communication terminal with a GPS function capable of further varying the positioning performance of each positioning mode preinstalled in the terminal. A GPS positioning section of the mobile communication terminal with the GPS function can perform positioning in a plurality of positioning modes using the A-GPS system. When a GPS control section of the mobile communication terminal with the GPS function causes the GPS positioning section to perform positioning, the GPS control section sets a positioning mode in the GPS positioning section, varies an allowable error of a communication synchronizing clock established between the terminal and a base station as a parameter relating to the positioning performance of GPS positioning based on the A-GPS system in which a fixed value has been conventionally used, and sets the allowable error in GPS positioning means.

    Abstract translation: 本发明提供具有GPS功能的移动通信终端，其能够进一步改变预先安装在终端中的每个定位模式的定位性能。 具有GPS功能的移动通信终端的GPS定位部可以使用A-GPS系统进行多种定位模式的定位。 当具有GPS功能的移动通信终端的GPS控制部分使得GPS定位部分执行定位时，GPS控制部分在GPS定位部分设置定位模式，改变在终端之间建立的通信同步时钟的容许误差 以及基站作为与基于其中常规使用固定值的A-GPS系统的GPS定位的定位性能相关的参数，并且设置GPS定位装置中的允许误差。

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