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    • 1. 发明授权
    • Ground drilling machine
    • 地面钻孔机
    • US06932171B2
    • 2005-08-23
    • US10453328
    • 2003-06-02
    • Toyohiko YouanKentaro WatanabeEiichi MuramotoKazuyuki Yamazaki
    • Toyohiko YouanKentaro WatanabeEiichi MuramotoKazuyuki Yamazaki
    • E21B7/04E21B21/08E21D9/06E21B10/60
    • E21B21/08
    • A ground drilling machine comprises a controller for automatically controlling the injection of working liquid according to the output signal output as a function of the rotating condition of the pilot head 20. When the pilot head 20 is driven forward or backward, working liquid can be injected by switching the working liquid transfer valve 111 so long as the pilot head 20 is revolving in order to improve the digging efficiency, the soil delivering efficiency and the cooling efficiency of the machine. The injection of working liquid can be suspended when the direction of propelling the pilot head 20 is shifted while stopping the revolution of the pilot head 20 because no working liquid is required for delivering the dug soil and cooling the leading body. Thus, working liquid can be injected always at an optimal rate depending on the rotating condition of the pilot head 20 to suppress any waste of working liquid and reduce the construction cost.
    • 地面钻孔机包括根据作为导向头20的旋转状态的函数的输出信号输出来自动控制工作液体的喷射的控制器。 当先导头20被向前或向后驱动时,只要先导头20旋转,可以通过切换工作液体转移阀111来注入工作液体,以提高挖掘效率,土壤输送效率和冷却效率 机器。 当停止引导头20的转动时,推进导向头20的方向移动时,工作液体的注入可以暂停,因为不需要工作液体来输送挖土并冷却引导体。 因此,可以根据先导头20的旋转状态总是以最佳速度喷射工作液体,以抑制任何工作液体的浪费并降低施工成本。
    • 4. 发明授权
    • Transmitting device, transmitting method, integrated circuit, and program
    • 传输设备,传输方式,集成电路和程序
    • US08804803B2
    • 2014-08-12
    • US13816770
    • 2012-06-13
    • Yuki MinodaEiichi Muramoto
    • Yuki MinodaEiichi Muramoto
    • H04B17/00H04L12/56H04L7/00H04N21/6373H04N21/262H04N21/24
    • H04L7/0041H04L47/25H04L47/283H04N21/2402H04N21/26216H04N21/6373
    • A transmitting device can suppress degradation of the video quality and determine a proper transmission rate, and include a transmitting unit that transmits a communication packet to a receiving device, a receiving unit that receives a feedback packet, which is a response signal corresponding to the communication packet, from the receiving device, a detecting unit that detects a change of a reception interval of the feedback packet, and a transmission rate determining unit that decreases a transmission rate at which the transmitting unit transmits the communication packet in the case where the change of the reception interval is detected, and increases the transmission rate on the basis of an amount of change of a travelling speed of at least either the transmitting device or the receiving device before and after the decrease in the transmission rate.
    • 发送装置可以抑制视频质量的劣化并确定适当的传输速率,并且包括向接收装置发送通信分组的发送单元,接收作为与通信对应的响应信号的反馈分组的接收单元 从所述接收装置接收检测所述反馈分组的接收间隔的变化的检测部,以及传送速度决定部,其使所述发送部发送所述通信分组的传输速度降低, 检测接收间隔,并且基于传输速率降低之前和之后的发送设备或接收设备中的至少任一个的行进速度的改变量来增加传输速率。
    • 5. 发明授权
    • Transmitting terminal and bandwidth estimating method
    • 发送终端和带宽估计方法
    • US08773982B2
    • 2014-07-08
    • US13387177
    • 2011-05-18
    • Eiichi MuramotoThilmee Baduge
    • Eiichi MuramotoThilmee Baduge
    • H04L12/54
    • H04W40/02H04L1/0002H04L1/004H04L45/125H04L47/263H04L47/38
    • A transmitting terminal for used in a communication system having the transmitting terminal and receiving terminals which are connected to each other in a tree shape, each of the receiving terminals copies the data transmitted from the transmitting terminal and transfers the copied data to a receiving terminal in downstream, includes a receiving section that receives a receiver report including a packet loss rate and a round trip time, a bandwidth estimation target terminal selection section that selects a receiving terminal to be estimated on the basis of distribution tree information and a packet loss rate included in the receiver report, and a bandwidth estimation section that estimates a bandwidth of the network to control a transmission rate of data on the basis of the packet loss rate and the round trip time included in the receiver report transmitted from the selected receiving terminal.
    • 一种用于具有以树形彼此连接的发送终端和接收终端的通信系统中的发送终端,每个接收终端复制从发送终端发送的数据,并将复制数据传送到接收终端 下行包括接收部分,其接收包括分组丢失率和往返时间的接收机报告,带宽估计目标终端选择部分,其根据分配树信息和分组丢失率来选择要估计的接收终端 以及带宽估计部,其基于包含在从所选择的接收终端发送的接收机报告中的分组丢失率和往返时间,估计网络的带宽以控制数据的传输速率。
    • 6. 发明授权
    • Transmitter and receiver for streaming media including packet padding
    • 用于流媒体的发射机和接收机,包括分组填充
    • US08711695B2
    • 2014-04-29
    • US13121798
    • 2009-10-13
    • Eiichi Muramoto
    • Eiichi Muramoto
    • H04L12/26
    • H04L12/4641H04L1/0008
    • A problem of the invention is to provide a transmitter terminal and a receiver terminal that can realize transmission of a real-time stream as the final transmission delay time is shortened by avoiding occurrence of reorder. In a transmitter terminal (1), a padding request accepting section (103) receives a padding request packet transmitted from a receiver terminal (2) and a packet padding section (102) pads the packet generated in a data generating section (101) so that the packet length becomes a specific length or more based on a command from the padding request accepting section (103), and transmits the packet to a network (10). In the receiver terminal (2), a reorder condition analyzing section (201) receives a packet from the network (10) and analyzes the occurrence condition of reorder of the packet, a padding requesting section (204) generates a padding request packet for requesting the transmitter terminal (1) to execute padding based on the analysis result of the reorder condition analyzing section (201), and a data reproducing section (203) reproduces the packet received in the reorder condition analyzing section (201).
    • 本发明的一个问题是提供一种发射机终端和接收机终端,其可以通过避免发生重新排序来缩短最终传输延迟时间,从而实现实时流的传输。 在发送终端(1)中,填补请求接收部(103)接收从接收终端(2)发送的填充请求包,并且分组填补部(102)对在数据生成部(101)中生成的分组进行填补, 基于来自填补请求接受部(103)的命令,分组长度变为特定长度以上,并将分组发送到网络(10)。 在接收终端(2)中,重排条件分析部(201)从网络(10)接收分组,分析分组的重新排序的发生状况,填补请求部(204)生成填补请求分组 所述发送终端(1)基于所述重排条件分析部(201)的分析结果来执行填补,以及数据再现部(203)再现在所述重排条件分析部(201)中接收到的分组。
    • 7. 发明授权
    • Streaming communication device, streaming communication method, and streaming communication system
    • 流式通信设备,流媒体通信方式和流媒体通信系统
    • US08588093B2
    • 2013-11-19
    • US13002051
    • 2009-07-03
    • Takahiro YonedaEiichi Muramoto
    • Takahiro YonedaEiichi Muramoto
    • G01R31/08
    • H04L12/1877H04L12/1827H04L65/403H04L65/80
    • A streaming communication device accurately estimates a packet which will be lost in the future. A streaming communication device which transmits or receives a stream via a router over a packet-switched network includes: accumulating unit configured to accumulate a one-way delay that is a time period between transmission and reception of a packet which includes a small segment of the stream; a detecting unit configured to detect a sign of a packet loss by identifying a tendency toward an increase in the one-way delay accumulated in the accumulating unit; and an estimating unit configured to estimate, when the sign is detected, a loss packet from a degree of the increase in the one-way delay accumulated in the accumulating unit, the loss packet being a packet which will be lost.
    • 流式通信设备准确地估计将来将丢失的分组。 一种通过分组交换网络经由路由器发送或接收流的流式通信设备包括:累积单元,被配置为累积单向延迟,该单向延迟是发送和接收包之间的时间段,该分组包括 流; 检测单元,被配置为通过识别积累在累积单元中的单向延迟增加的趋势来检测分组丢失的符号; 以及估计单元,被配置为当从所述累积单元中累积的所述单向延迟的增加程度中检测到所述符号何时被检测到丢失分组,所述丢失分组是将丢失的分组。
    • 9. 发明申请
    • TRANSMITTING TERMINAL AND BANDWIDTH ESTIMATING METHOD
    • 发送终端和带宽估计方法
    • US20120128002A1
    • 2012-05-24
    • US13387177
    • 2011-05-18
    • Eiichi MuramotoThilmee Baduge
    • Eiichi MuramotoThilmee Baduge
    • H04L12/56
    • H04W40/02H04L1/0002H04L1/004H04L45/125H04L47/263H04L47/38
    • A transmitting terminal for used in a communication system having the transmitting terminal and receiving terminals which are connected to each other in a tree shape, each of the receiving terminals copies the data transmitted from the transmitting terminal and transfers the copied data to a receiving terminal in downstream, includes a receiving section that receives a receiver report including a packet loss rate and a round trip time, a bandwidth estimation target terminal selection section that selects a receiving terminal to be estimated on the basis of distribution tree information and a packet loss rate included in the receiver report, and a bandwidth estimation section that estimates a bandwidth of the network to control a transmission rate of data on the basis of the packet loss rate and the round trip time included in the receiver report transmitted from the selected receiving terminal.
    • 一种用于具有以树形彼此连接的发送终端和接收终端的通信系统中的发送终端,每个接收终端复制从发送终端发送的数据,并将复制数据传送到接收终端 下行包括接收部分,其接收包括分组丢失率和往返时间的接收机报告,带宽估计目标终端选择部分,其根据分配树信息和分组丢失率来选择要估计的接收终端 以及带宽估计部,其基于包含在从所选择的接收终端发送的接收机报告中的分组丢失率和往返时间,估计网络的带宽以控制数据的传输速率。
    • 10. 发明申请
    • PATH SETTING DEVICE AND PATH SETTING METHOD
    • 路径设置和路径设置方法
    • US20120063360A1
    • 2012-03-15
    • US13319596
    • 2010-05-11
    • Eiichi MuramotoNaoyuki MochidaRyutaro OnoKazunobu Konishi
    • Eiichi MuramotoNaoyuki MochidaRyutaro OnoKazunobu Konishi
    • H04L12/28
    • H04L45/48H04L45/16
    • Disclosed is a path setting device capable of setting a distribution path of packets more speedily, when the originator of information is switched. The terminal (100) as the device sets the distribution path of the packets to a communication network which distributes the information from an unspecified terminal to a large number of terminals by transferring the packets. The terminal (100) comprises: an expanded distribution tree calculation unit (140) which calculates the distribution path in accordance with the position, on the communication network, of an origination candidate terminal which is a terminal capable of originating information; and a table setting server unit (150) which sets the calculated distribution path to the communication network. The distribution path calculated by the expanded distribution tree calculation unit (140) comprises: a distribution tree to transfer the packets from a root terminal to the large number of terminals; and a connection tree path to transfer the packets from the origination candidate terminal to the root terminal.
    • 公开了当切换信息的发起者时能够更快地设定分组分配路径的路径设定装置。 作为设备的终端(100)将分组的分配路径设置为通过传送分组而将信息从未指定终端分发到大量终端的通信网络。 终端(100)包括:扩展分布树计算单元,其根据通信网络上的作为能够发起信息的终端的起始候选终端的位置来计算分配路径; 以及将所述计算出的分配路径设定为所述通信网络的表设定服务器单元(150)。 由扩展分布树计算单元(140)计算的分发路径包括:分发树,用于将分组从根终端传送到大量终端; 以及将分组从起始候选终端传送到根终端的连接树路径。