公开(公告)号：US20090059924A1

公开(公告)日：2009-03-05

申请号：US12279164

申请日：2007-02-16

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

IPC分类号： H04L12/56

CPC分类号： H04L12/1836 ,  H04L45/00 ,  H04L45/16

摘要： A packet transmitting method wherein an explicit multicast packet can be transmitted with the consumption of communication bands of broadcast media being suppressed. According to this method, a link level multicast is used to transmit an explicit multicast packet only to next hop nodes that, even when receiving the explicit multicast packet through the link level multicast, will not output the same packet to the broadcast media, while a unicast is used to transmit an explicit multicast packet to the other next hop nodes.

摘要翻译： 一种分组发送方法，其中可以在抑制广播媒体的通信频带的消耗的情况下发送显式组播分组。 根据该方法，使用链路层组播仅向下一跳节点发送明确的组播数据包，即使通过链路级组播接收到显式组播数据包，也不会将相同的数据包输出到广播媒体，而 单播用于向其他下一跳节点传输明确的组播数据包。

公开(公告)号：US07924714B2

公开(公告)日：2011-04-12

申请号：US11813476

申请日：2006-01-06

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

IPC分类号： G01R31/08

CPC分类号： H04L45/00 ,  H04L47/10

摘要： It is an object of the present invention to receive/play a streaming immediately after a switching not to disconnect it when a terminal for receiving the streaming is switched from a first receiving terminal to a second receiving terminalA communication method of switching a receiving terminal of a streaming to which a rate control using TFRC is applied from a first receiving terminal to a second receiving terminal, includes a deciding step of deciding whether or not a route on a network between a transmitting terminal of the streaming and the first receiving terminal is identical to a route on the network between the transmitting terminal and the second receiving terminal, and a transferring step of transferring history information of a packet loss that the first receiving terminal is managing to the second receiving terminal when it is decided that both routes are identical.

摘要翻译： 本发明的目的是在用于接收流的终端从第一接收终端切换到第二接收终端之后，在切换之后立即接收/播放流。 包括从第一接收终端向第二接收终端应用使用TFRC的速率控制的流，包括决定步骤，判定流的发送终端与第一接收终端之间的网络上的路由是否相同 到发送终端和第二接收终端之间的网络上的路由，以及当确定两条路由相同时，将第一接收终端正在管理的分组丢失的历史信息传送给第二接收终端的传送步骤。

公开(公告)号：US20090285211A1

公开(公告)日：2009-11-19

申请号：US11813476

申请日：2006-01-06

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L47/10

摘要： It is an object of the present invention to receive/play a streaming immediately after a switching not to disconnect it when a terminal for receiving the streaming is switched from a first receiving terminal to a second receiving terminalA communication method of switching a receiving terminal of a streaming to which a rate control using TFRC is applied from a first receiving terminal to a second receiving terminal, includes a deciding step of deciding whether or not a route on a network between a transmitting terminal of the streaming and the first receiving terminal is identical to a route on the network between the transmitting terminal and the second receiving terminal, and a transferring step of transferring history information of a packet loss that the first receiving terminal is managing to the second receiving terminal when it is decided that both routes are identical.

摘要翻译： 本发明的目的是在用于接收流的终端从第一接收终端切换到第二接收终端之后，在切换之后立即接收/播放流。 包括从第一接收终端向第二接收终端应用使用TFRC的速率控制的流，包括决定步骤，判定流的发送终端与第一接收终端之间的网络上的路由是否相同 到发送终端和第二接收终端之间的网络上的路由，以及当确定两条路由相同时，将第一接收终端正在管理的分组丢失的历史信息传送给第二接收终端的传送步骤。

公开(公告)号：US07876756B2

公开(公告)日：2011-01-25

申请号：US12279164

申请日：2007-02-16

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Toyoki Kawahara

IPC分类号： H04L12/56

CPC分类号： H04L12/1836 ,  H04L45/00 ,  H04L45/16

摘要： A packet transmitting method wherein an explicit multicast packet can be transmitted with the consumption of communication bands of broadcast media being suppressed. According to this method, a link level multicast is used to transmit an explicit multicast packet only to next hop nodes that, even when receiving the explicit multicast packet through the link level multicast, will not output the same packet to the broadcast media, while a unicast is used to transmit an explicit multicast packet to the other next hop nodes.

摘要翻译： 一种分组发送方法，其中可以在抑制广播媒体的通信频带的消耗的情况下发送显式组播分组。 根据该方法，使用链路层组播仅向下一跳节点发送明确的组播数据包，即使通过链路级组播接收到显式组播数据包，也不会将相同的数据包输出到广播媒体，而 单播用于向其他下一跳节点传输明确的组播数据包。

公开(公告)号：US08699519B2

公开(公告)日：2014-04-15

申请号：US13119296

申请日：2009-08-11

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi

IPC分类号： H04W28/10

CPC分类号： H04L47/10

摘要： A first communication terminal which communicates with a second communication terminal through a best effort network includes: a communication history storage unit in which a communication history is stored for each of the communication terminals; and a round-trip delay time calculation unit which calculates a round-trip delay time that occurs in a communication with the second communication terminal. The second communication terminal includes a target loss event rate calculation unit which calculates a target loss event rate that is to be set by the first communication terminal in a communication with the second communication terminal, based on a past transmission rate that is recorded in the communication history and has been realized in the communication with the second communication terminal, and on the round-trip delay time that occurs in the communication with the second communication terminal. The first communication terminal changes a transmission rate which is set at the present time to a target transmission rate which is calculated based on the target loss event rate and the round-trip delay time. According to the transmission rate control device, when it is determined that the bandwidth that is estimated to be available in a communication through the network is rapidly changed, the transmission rate can be changed to a target bit rate in a short time period.

摘要翻译： 通过尽力而为的网络与第二通信终端通信的第一通信终端包括：通信历史存储单元，其中为每个通信终端存储通信历史; 以及往返延迟时间计算单元，其计算与第二通信终端的通信中发生的往返延迟时间。 第二通信终端包括：目标丢失事件发生率计算部，其基于在通信中记录的过去的传输速率来计​​算与第二通信终端进行通信时由第一通信终端设定的目标丢失事件发生率 历史，并且在与第二通信终端的通信中以及在与第二通信终端的通信中发生的往返延迟时间已经实现。 第一通信终端将当前设定的传输速率改变为基于目标丢失事件率和往返延迟时间计算的目标传输速率。 根据传输速率控制装置，当确定通过网络的通信中估计可用的带宽快速改变时，可以在短时间段内将传输速率改变为目标比特率。

公开(公告)号：US20100074113A1

公开(公告)日：2010-03-25

申请号：US12443895

申请日：2007-08-29

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi

IPC分类号： H04L12/26

CPC分类号： H04L47/10 ,  H04L43/0829 ,  H04L43/0864 ,  H04L47/2441 ,  H04L47/283

摘要： It is an object to provide a flow control method in which a packet round trip time is not excessively calculated out and its performance is not unnecessarily deteriorated even at the time of continuously connected packet transfers through relays of a plurality of receiving terminal devices. This method is directed to a flow control method in which the delivery of packets are carried out through relays of a plurality of receiving terminal devices. The method is comprised of steps (S501-S517) for acquiring a packet round trip time for every pair of neighboring terminal devices in a path of the delivery, a selection step for selecting one from the acquired round trip time in accordance with a predetermined standard, and a step (S518) for calculating a packet transmission rate on the basis of the selected round trip time, so that the round trip time of each receiving terminal device is measured and the transmission rate is calculated in accordance with the measured result. Thus, a packet round trip time is not excessively calculated out, and data transmission performance can be improved.

摘要翻译： 本发明的目的是提供一种流量控制方法，其中分组往返时间不被过度计算，即使在通过多个接收终端设备的中继连续连接分组传输时，其性能也不会不必要地劣化。 该方法涉及一种流控制方法，其中通过多个接收终端设备的中继进行分组传送。 该方法包括用于在传送路径中获取每对相邻终端设备的分组往返时间的步骤（S501-S517），根据预定标准从获取的往返行程时间中选择一个的选择步骤 以及基于所选择的往返时间计算分组传输速率的步骤（S518），从而测量每个接收终端设备的往返时间，并根据测量结果计算传输速率。 因此，分组往返时间不会被过度计算出来，并且可以提高数据传输性能。

公开(公告)号：US08588093B2

公开(公告)日：2013-11-19

申请号：US13002051

申请日：2009-07-03

申请人： Takahiro Yoneda ,  Eiichi Muramoto

发明人： Takahiro Yoneda ,  Eiichi Muramoto

IPC分类号： G01R31/08

CPC分类号： H04L12/1877 ,  H04L12/1827 ,  H04L65/403 ,  H04L65/80

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08098660B2

公开(公告)日：2012-01-17

申请号：US11997130

申请日：2006-07-28

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi ,  Chih-chang Hsu

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi ,  Chih-chang Hsu

IPC分类号： H04L12/56

CPC分类号： H04W72/005 ,  H04L12/1827 ,  H04W28/06 ,  H04W76/20

摘要： To transmit multimedia data in such a manner that is adaptive to the transmission capability of a receiving apparatus and/or to the congestion state of a network. In a transmitting apparatus (100), a receiver capability estimating part (102) estimates, based on feedback information from a receiving apparatus (200), a useable band. A receiver classifying part (103) classifies, based on the useable band, the receiving apparatus. A receiver list rearranging part (105) rearranges, in order of transmission capability, a receiver list where classified receiving apparatuses are listed in classes. A packet generating part (106) generates a packet having the receiver list and transmits it at an appropriate transmission rate.

摘要翻译： 以适应于接收装置的传输能力和/或网络的拥塞状态的方式发送多媒体数据。 在发送装置（100）中，接收机能力估计部（102）基于来自接收装置（200）的反馈信息，估计可使用的频带。 接收机分类部（103）基于可用频带对接收装置进行分类。 接收机列表重排部分（105）以传输能力的顺序重新排列分类的接收设备在类中列出的接收机列表。 分组生成部（106）生成具有接收方列表的分组，并以适当的传输速度发送。

公开(公告)号：US20110170417A1

公开(公告)日：2011-07-14

申请号：US13119296

申请日：2009-08-11

申请人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi

发明人： Eiichi Muramoto ,  Takahiro Yoneda ,  Kazunobu Konishi

IPC分类号： H04L12/26

CPC分类号： H04L47/10

摘要： A first communication terminal which communicates with a second communication terminal through a best effort network includes: a communication history storage unit in which a communication history is stored for each of the communication terminals; and a round-trip delay time calculation unit which calculates a round-trip delay time that occurs in a communication with the second communication terminal. The second communication terminal includes a target loss event rate calculation unit which calculates a target loss event rate that is to be set by the first communication terminal in a communication with the second communication terminal, based on a past transmission rate that is recorded in the communication history and has been realized in the communication with the second communication terminal, and on the round-trip delay time that occurs in the communication with the second communication terminal. The first communication terminal changes a transmission rate which is set at the present time to a target transmission rate which is calculated based on the target loss event rate and the round-trip delay time. According to the transmission rate control device, when it is determined that the bandwidth that is estimated to be available in a communication through the network is rapidly changed, the transmission rate can be changed to a target bit rate in a short time period.

摘要翻译： 通过尽力而为的网络与第二通信终端通信的第一通信终端包括：通信历史存储单元，其中为每个通信终端存储通信历史; 以及往返延迟时间计算单元，其计算与第二通信终端的通信中发生的往返延迟时间。 第二通信终端包括：目标丢失事件发生率计算部，其基于在通信中记录的过去的传输速率来计​​算与第二通信终端进行通信时由第一通信终端设定的目标丢失事件发生率 历史，并且在与第二通信终端的通信中以及在与第二通信终端的通信中发生的往返延迟时间已经实现。 第一通信终端将当前设定的传输速率改变为基于目标丢失事件率和往返延迟时间计算的目标传输速率。 根据传输速率控制装置，当确定通过网络的通信中估计可用的带宽快速改变时，可以在短时间段内将传输速率改变为目标比特率。

公开(公告)号：US07950053B2

公开(公告)日：2011-05-24

申请号：US11575310

申请日：2005-10-12

申请人： Eiichi Muramoto ,  Takahiro Yoneda

发明人： Eiichi Muramoto ,  Takahiro Yoneda

IPC分类号： H04L9/00

CPC分类号： H04L63/0236

摘要： It is made possible to appropriately execute packet filtering and unauthorized access detection in a situation in which mobile network communications are operated.A home agent 404A acquires IP address, port number, and media type obtained by call control of a call control proxy server 403A and sends them to a firewall 700. A packet filtering unit 400 of the firewall 700 performs packet filtering so as to allow the IP packet determined according to the IP address and port number pair to pass through. An unauthorized access monitor 701 takes out information of the corresponding media type out of the normal access determination condition previously defined for each media type, monitors a packet based on the normal access determination condition, and detects that access deviating from normal access is unauthorized access.

摘要翻译： 可以在操作移动网络通信的情况下适当地执行包过滤和未经授权的访问检测。 归属代理404A获取通过呼叫控制代理服务器403A的呼叫控制获得的IP地址，端口号和媒体类型，并将其发送到防火墙700.防火墙700的分组过滤单元400执行分组过滤，以便允许 IP包根据IP地址和端口号对确定通过。 未经授权的访问监视器701从先前为每种媒体类型定义的正常访问确定条件中取出相应媒体类型的信息，基于正常访问确定条件监视分组，并且检测到偏离正常访问的访问是未经授权的访问。