Seismic geophysical surveying
    11.
    发明授权
    Seismic geophysical surveying 有权
    地震地球物理勘测

    公开(公告)号:US09465126B2

    公开(公告)日:2016-10-11

    申请号:US14232879

    申请日:2012-07-12

    IPC分类号: G01V1/36 G01V1/22

    CPC分类号: G01V1/366 G01V1/226

    摘要: The present invention relates to an apparatus for use in geophysical surveying. Geophysical surveying typically involves stimulating an area of interest with a seismic source (204) and detecting the response in a sensor array. The application describes a fiber optic distributed sensing apparatus having a source (112) of electromagnetic radiation for repeatedly launching interrogating electromagnetic radiation into an optic fiber (104) deployed in said of area interest, a sampling detector (116) for sampling radiation back-scattered from the fiber; and a processor (108) arranged to process the back-scattered radiation to provide, for each of a plurality of longitudinal sensing portions of optic fiber, an indication of any incident acoustic signals affecting that sensing portion. The sampling detector is arranged to acquire a plurality of diversity samples for each said longitudinal sensing portion. The processor is configured process the diversity samples in diversity channels to determine a measurement signal indicative of any acoustic disturbance; correlate the measurement signal from each channel with a signal indicative of the seismic stimulus applied; and combine the correlated measurement signals to provide an overall measurement signal for the longitudinal sensing portion. The processor may apply a quality metric to the correlated data before performing the combination based on the quality metric. By correlating the individual diversity channels with the stimulus signal prior to performing the analysis of the measurement signal for a particular longitudinal section of optic fiber, the signal to noise ratio can be improved.

    摘要翻译: 本发明涉及用于地球物理测量的装置。 地球物理测量通常涉及利用地震源(204)刺激感兴趣区域并检测传感器阵列中的响应。 该应用描述了一种具有电磁辐射源(112)的光纤分布式感测装置,用于将所述电磁辐射重新发射到在所述区域感兴趣的光纤(104)中反复发射询问电磁辐射;采样检测器(116),用于对辐射进行散射 从纤维; 以及处理器(108),其布置成处理所述反向散射辐射,以针对光纤的多个纵向感测部分中的每一个提供影响所述感测部分的任何入射声信号的指示。 采样检测器被布置成为每个所述纵向感测部分获取多个分集样本。 配置处理器处理分集通道中的分集采样以确定指示任何声学干扰的测量信号; 将来自每个通道的测量信号与指示所施加的地震激励的信号相关联; 并组合相关测量信号以提供用于纵向感测部分的总体测量信号。 基于质量度量,处理器可以在执行组合之前对相关数据应用质量度量。 通过在对光纤的特定纵向部分执行测量信号的分析之前将各个分集信道与刺激信号相关,可以提高信噪比。

    Telecommunications system and method
    12.
    发明授权
    Telecommunications system and method 有权
    电信系统和方法

    公开(公告)号:US08542806B2

    公开(公告)日:2013-09-24

    申请号:US12597149

    申请日:2008-04-09

    IPC分类号: H04M11/00

    摘要: A telecommunications system including, a plurality of repeater nodes, each repeater node having a transceiver unit operable to transmit and receive data to or from one or more other of the repeater nodes or a control node or a mobile device within a predetermined range. The control node operable to transmit data to and receive data from the mobile device via the repeater nodes using a time frame divided into a plurality of time slots. The time slots of the time frame are allocated to the repeater nodes to the effect that each repeater node transmits to another repeater node in one of the upstream or the downstream directions in a time slot which is a minimal time from the time slot in which the other repeater node transmits in the upstream or downstream direction.

    摘要翻译: 一种电信系统,包括多个中继器节点,每个中继器节点具有收发器单元,用于向预定范围内的一个或多个其他中继器节点或控制节点或移动设备发送数据或从其接收数据。 所述控制节点可操作以使用被分成多个时隙的时间帧经由所述中继器节点向所述移动设备发送数据和从所述移动设备接收数据。 时间帧的时隙被分配给中继器节点,使得每个中继器节点在时隙中的一个上游或下游方向上发送到另一个中继节点,该时隙是从时隙的最短时间 其他中继器节点在上游或下游方向传输。

    Fibre Optic Distributed Sensor
    15.
    发明申请
    Fibre Optic Distributed Sensor 审中-公开
    光纤分布式传感器

    公开(公告)号:US20140204368A1

    公开(公告)日:2014-07-24

    申请号:US14237723

    申请日:2012-08-24

    IPC分类号: G01M11/00

    摘要: There is provided a distributed sensor, comprising a length of optic fibre; an interrogator unit having a detector arranged to detect light from the optic fibre, wherein the interrogator is arranged to provide distributed sensing on the optic fibre and wherein an optical path is defined between the optic fibre and the interrogator detector; a sampler coupled to the optic fibre and arranged to obtain a sample of light from the optical path of the optic fibre; a threshold detector arranged to detect the intensity of the sampled light and determine whether the intensity of the sampled light is above a threshold value; and an optical attenuator provided in the optical path and arranged to attenuate light propagating along the optical path when the intensity of the sampled light is above the threshold value. By attenuating light in the optical path if it is above a threshold value, the sensitive detector in the interrogator unit can be protected.

    摘要翻译: 提供了一种分布式传感器,包括一段光纤; 具有检测器的询问器单元,其用于检测来自光纤的光,其中询问器布置成在光纤上提供分布式感测,并且其中在光纤和询问器检测器之间限定光路; 取样器,耦合到所述光纤并被布置成从所述光纤的光路获得光的样本; 阈值检测器,被布置成检测采样光的强度,并确定采样光的强度是否高于阈值; 以及光衰减器,其设置在所述光路中并且被布置成当所述采样光的强度高于所述阈值时衰减沿着所述光路传播的光。 通过衰减光路中的光线高于阈值,可以保护询问器单元中的敏感探测器。

    Seismic Geophysical Surveying
    16.
    发明申请
    Seismic Geophysical Surveying 有权
    地震地球物理测量

    公开(公告)号:US20140153364A1

    公开(公告)日:2014-06-05

    申请号:US14232879

    申请日:2012-07-12

    IPC分类号: G01V1/36

    CPC分类号: G01V1/366 G01V1/226

    摘要: The present invention relates to an apparatus for use in geophysical surveying. Geophysical surveying typically involves stimulating an area of interest with a seismic source and detecting the response in a sensor array. The application describes a fibre optic distributed sensing apparatus having a source (112) of electromagnetic radiation for repeatedly launching interrogating electromagnetic radiation into an optic fibre (104) deployed in said of area interest, a sampling detector (116) for sampling radiation back-scattered from the fibre; and a processor (108) arranged to process the back-scattered radiation to provide, for each of a plurality of longitudinal sensing portions of optic fibre, an indication of any incident acoustic signals affecting that sensing portion. The sampling detector is arranged to acquire a plurality of diversity samples for each said longitudinal sensing portion. The processor is configured process the diversity samples in diversity channels to determine a measurement signal indicative of any acoustic disturbance; correlate the measurement signal from each channel with a signal indicative of the seismic stimulus applied; and combine the correlated measurement signals to provide an overall measurement signal for the longitudinal sensing portion. The processor may apply a quality metric to the correlated data before performing the combination based on the quality metric. By correlating the individual diversity channels with the stimulus signal prior to performing the analysis of the measurement signal for a particular longitudinal section of optic fibre, the signal to noise ratio can be improved.

    摘要翻译: 本发明涉及用于地球物理测量的装置。 地球物理测量通常涉及用地震源刺激感兴趣的区域并检测传感器阵列中的响应。 该应用描述了一种具有电磁辐射源(112)的光纤分布式感测装置,用于将所述电磁辐射重新发射到在所述区域感兴趣的光纤(104)中反复发射询问电磁辐射;采样检测器(116),用于对辐射进行散射 从纤维; 以及处理器(108),其布置成处理所述反向散射辐射,以针对光纤的多个纵向感测部分中的每一个提供影响所述感测部分的任何入射声信号的指示。 采样检测器被布置成为每个所述纵向感测部分获取多个分集样本。 配置处理器处理分集通道中的分集采样以确定指示任何声学干扰的测量信号; 将来自每个通道的测量信号与指示所施加的地震激励的信号相关联; 并组合相关测量信号以提供用于纵向感测部分的总体测量信号。 基于质量度量,处理器可以在执行组合之前对相关数据应用质量度量。 通过在对光纤的特定纵向部分执行测量信号的分析之前将各个分集信道与刺激信号相关,可以提高信噪比。

    TELECOMMUNICATIONS SYSTEM AND METHOD
    17.
    发明申请
    TELECOMMUNICATIONS SYSTEM AND METHOD 有权
    电信系统与方法

    公开(公告)号:US20100034132A1

    公开(公告)日:2010-02-11

    申请号:US12373043

    申请日:2007-07-13

    IPC分类号: H04B7/14

    摘要: A telecommunications system for communicating data to and from a mobile device. The system comprises a plurality of repeater nodes disposed to form a network. Each repeater, node has a transceiver unit operable to transmit the data with a first transmission power to one or more other of the repeater nodes within one of a plurality of slots of a time frame. Each repeater node is allocated a time slot, and the mobile device is arranged to transmit and receive data to and from the repeater nodes in the network. Each of the repeater nodes is operable to transmit a pilot signal during the same one of the time slots of the time frame with a second transmission power, the second power being less than the first transmission power. The pilot signal includes an identifier of the repeater node which is transmitted with the pilot signal and the mobile device is operable to receive one of the pilot signals.

    摘要翻译: 用于向移动设备传送数据和从移动设备传送数据的电信系统。 该系统包括被设置成形成网络的多个中继器节点。 每个中继器节点具有收发器单元,其可操作以将具有第一传输功率的数据传输到时间帧的多个时隙之一内的一个或多个其他中继器节点。 每个中继器节点被分配一个时隙,并且移动设备被安排为向网络中的中继器节点发送数据和从中继器节点接收数据。 每个中继器节点可操作以在具有第二传输功率的时间帧的相同时隙之间发送导频信号,第二功率小于第一传输功率。 导频信号包括与导频信号一起发送的中继器节点的标识符,并且移动设备可操作以接收导频信号之一。

    Distributed file system using disk servers, lock servers and file servers
    18.
    发明授权
    Distributed file system using disk servers, lock servers and file servers 有权
    使用磁盘服务器,锁定服务器和文件服务器的分布式文件系统

    公开(公告)号:US07406473B1

    公开(公告)日:2008-07-29

    申请号:US10355786

    申请日:2003-01-30

    IPC分类号: G06F12/00 G06F13/16

    摘要: A distributed file system is disclosed. A plurality of disk servers, operating as a single distributed disk server layer, are connected to the one or more physical disks. Each disk server stores meta-data for each of the files. A plurality of lock servers, having one or more locks for each file operates as a single distributed lock server to coordinate access to the files stored by the disk server layer. A plurality of asynchronous file servers, operating as a single distributed file server layer in response to a request for a file from a user program: (i) retrieves the requested file from the disk server layer and at least one lock, associated with the retrieved file, from the lock server, and (ii) retrieves meta-data for at least one file that is related to the requested files, and at least one lock, for each file that has had its meta-data retrieved.

    摘要翻译: 公开了一种分布式文件系统。 作为单个分布式磁盘服务器层操作的多个磁盘服务器连接到一个或多个物理磁盘。 每个磁盘服务器存储每个文件的元数据。 具有用于每个文件的一个或多个锁的多个锁定服务器用作单个分布式锁定服务器以协调对由磁盘服务器层存储的文件的访问。 响应于来自用户程序的文件请求而操作为单个分布式文件服务器层的多个异步文件服务器:(i)从所述磁盘服务器层检索所请求的文件,以及至少一个与检索到的文件相关联的锁 文件,以及(ii)检索与所请求的文件相关的至少一个文件的元数据,以及对于已经检索其元数据的每个文件,至少检索一个锁。

    Drug Delivery from Embolic Agents
    19.
    发明申请
    Drug Delivery from Embolic Agents 审中-公开
    栓塞药物的药物递送

    公开(公告)号:US20070258939A1

    公开(公告)日:2007-11-08

    申请号:US11573169

    申请日:2004-08-03

    IPC分类号: A61K31/74

    摘要: A pharmaceutical composition for embolisation of blood vessels, especially for benign tumours, comprises a polymeric embolic agent and, associated with the polymer in a releasable form, a local anaesthetic agent. The polymer is preferably in particulate form, such as in the form of microspheres. A suitable polymer is a crosslinked polyvinyl alcohol polymer formed by the copolymerisation of PVA macromer with other ethylenically unsaturated monomers. The composition provides a synergistic treatment for the symptoms of tumours such as uterine fibroids, leading to size regression as well as pain relief.

    摘要翻译: 用于血管栓塞的药物组合物,特别是用于良性肿瘤的药物组合物包含聚合物栓塞剂,并且以可释放形式的聚合物与局部麻醉剂相关联。 聚合物优选为颗粒形式,例如以微球的形式。 合适的聚合物是通过PVA大分子单体与其它烯属不饱和单体的共聚形成的交联聚乙烯醇聚合物。 该组合物对诸如子宫肌瘤的肿瘤症状提供协同治疗,导致大小消退以及疼痛缓解。