公开(公告)号：US20090097498A1

公开(公告)日：2009-04-16

申请号：US12130624

申请日：2008-05-30

申请人： Shinichiro OHMI ,  Hideki Homma ,  Yoshio Urabe ,  Yoshinori Okazaki ,  Yosuke Matsushita

发明人： Shinichiro OHMI ,  Hideki Homma ,  Yoshio Urabe ,  Yoshinori Okazaki ,  Yosuke Matsushita

IPC分类号： H04L12/43

CPC分类号： H04L12/43 ,  H04L12/2838

摘要： A communication apparatus for communicating by commonly sharing a transmission channel with another communication apparatus which performs a data transmission, comprising: a transmitting unit which transmits first data at first timing and second data at second timing subsequent to the first timing to the transmission channel; and an information adding unit which adds time slot information to the first data, the time slot information indicating a time slot during which the second data is transmitted prior to the data transmission performed by the other communication apparatus.

摘要翻译： 一种用于通过与执行数据传输的另一个通信装置共同共享传输信道进行通信的通信装置，包括：发送单元，其在第一定时发送第一数据，并且在第一定时之后的第二定时向传输信道发送第二数据; 以及信息添加单元，其将时隙信息添加到第一数据，所述时隙信息指示在由另一通信装置进行的数据传输之前发送第二数据的时隙。

公开(公告)号：US20100195569A1

公开(公告)日：2010-08-05

申请号：US12666337

申请日：2009-04-23

申请人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita ,  Yoshio Urabe

发明人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita ,  Yoshio Urabe

IPC分类号： H04W40/00

CPC分类号： H04B3/54 ,  H04B3/544 ,  H04B2203/5445

摘要： Provided is a communication terminal device that reduces, in a network using a power line, the percentage of bands consumed for transmission of control packets in the bands consumed for all the communication, so as to ensure transmission of data intended to be transmitted. A PLC terminal F701 connected to the network of power line communication transmits, when having determined that the terminal does not receive from the network a beacon for a predetermined period of time, a beacon request packet to the network, using a modulation method having the lowest communication speed among the modulation methods that can be used in the network.

摘要翻译： 提供了一种通信终端设备，其在使用电力线的网络中减少为所有通信消耗的频带中的控制分组的传输所消耗的频带的百分比，以便确保要发送的数据的传输。 连接到电力线通信网络的PLC终端F701在已经确定终端没有从网络接收到预定时间段的信标的情况下，使用具有最低的调制方法向网络发送信标请求分组 在网络中可以使用的调制方式之间的通信速度。

公开(公告)号：US20100220593A1

公开(公告)日：2010-09-02

申请号：US12599374

申请日：2009-03-31

申请人： Yuki Fujiwara ,  Yosuke Matsushita ,  Yoshio Urabe

发明人： Yuki Fujiwara ,  Yosuke Matsushita ,  Yoshio Urabe

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04B2203/5445 ,  H04L47/11 ,  H04L47/122 ,  H04L47/2408 ,  H04L47/2433 ,  H04L47/2458 ,  H04L47/33

摘要： Each of PLC modems 11 through 14 that perform communication using a PLC network 1 manages a priority management table that contains, for each of a plurality of data exchanged using a common transmission line, (i) a main priority (original), (ii) a main priority (changed), and (iii) a sub-priority. For example, when the PLC modem 11 detects congestion, the PLC modem 11 searches its priority management table for a stream that has the same main priority (original) as and a lower sub-priority than data transmitted by the PLC modem 11. The PLC modem 11 then transmits, to the PLC modem that transmits the stream found as a result of the above search, a notification signal notifying that the data transmitted by the PLC modem 11 has a high sub-priority.

摘要翻译： 使用PLC网络1执行通信的PLC调制解调器11至14中的每一个管理优先级管理表，对于使用公共传输线交换的多个数据中的每一个，包含主要优先级（原始），（ii） 主要优先事项（已更改），（iii）次要优先事项。 例如，当PLC调制解调器11检测到拥塞时，PLC调制解调器11在其​​优先级管理表中搜索与PLC调制解调器11发送的数据相同的主要优先级（原始）和较低的子优先级的流.PLC 调制解调器11然后向作为上述搜索结果发送的流的PLC调制解调器发送通知PLC调制解调器11发送的数据具有高次优先级的通知信号。

公开(公告)号：US08675490B2

公开(公告)日：2014-03-18

申请号：US13001176

申请日：2010-04-19

申请人： Yosuke Ukita ,  Yosuke Matsushita ,  Hideki Homma

发明人： Yosuke Ukita ,  Yosuke Matsushita ,  Hideki Homma

IPC分类号： H04W36/22

CPC分类号： H04L47/10 ,  H04B3/54 ,  H04B2203/5445 ,  H04B2203/545 ,  H04L29/12066 ,  H04L47/127 ,  H04L47/32 ,  H04L61/1511 ,  H04L67/04 ,  H04L67/2814

摘要： The present invention can prevent a fuzzy image, which is caused due to insufficient bandwidth when the bandwidth necessary for transmitting a content cannot be secured, to be displayed on a display device. When a relay apparatus (100) receives, from a DNS server, a DNS response packet regarding a domain name of a server which transmits a content, a condition judging section (210) in the relay apparatus (100) judges whether a required bandwidth for the content corresponding to the domain name can be secured in a communication path connecting to another relay apparatus (100). If the condition judging section (210) judges that the required bandwidth cannot be secured, a DNS modifying section (250) in the relay apparatus (100) rewrites a reply IP address included in the DNS response packet to an IP address of the relay apparatus (100).

摘要翻译： 本发明可以防止在显示装置上显示当不能确保发送内容所需的带宽时由于带宽不足而引起的模糊图像。 当中继装置（100）从DNS服务器接收到关于发送内容的服务器的域名的DNS响应包时，中继装置（100）中的条件判断部（210）判断是否需要带宽 可以在连接到另一中继装置（100）的通信路径中确保对应于域名的内容。 如果条件判断部（210）判断无法确保所需的带宽，则中继装置（100）中的DNS修改部（250）将DNS响应包中包含的应答IP地址重写到中继装置的IP地址 （100）。

公开(公告)号：US20100195656A1

公开(公告)日：2010-08-05

申请号：US12666198

申请日：2009-04-23

申请人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita ,  Go Kuroda

发明人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita ,  Go Kuroda

IPC分类号： H04L12/56

CPC分类号： H04W74/0825 ,  H04B3/54 ,  H04L29/0653 ,  H04L49/55 ,  H04W40/30 ,  H04W84/18

摘要： There is provided a communication apparatus which, in an ad-hoc network, when receiving control packets from a plurality of terminals, can determine whether or not there is a collision among the control packets, and, based on the determination, can be prevented from continuing to be out of the network due to a collision among the control packets transmitted from the plurality of terminals. In the communication terminal, a communication section receives a control packet which periodically comes up on a communication path. When the communication apparatus receives a plurality of control packets which are defective in at least payload portions thereof within a predetermined time period, if a control section determines that source addresses included in header portions of the control packets which are defective in the payload portions thereof include a source address which is not identical to the other source addresses, the control section determines that the control packets are transmitted from a plurality of terminals and collide with each other.

摘要翻译： 提供了一种通信装置，在自组织网络中，当从多个终端接收到控制分组时，可以确定控制分组之间是否存在冲突，并且可以基于该确定来防止 由于从多个终端发送的控制分组之间的冲突，继续离开网络。 在通信终端中，通信部接收在通信路径上周期性地出现的控制分组。 当通信装置在预定时间段内至少在其有效载荷部分中接收到有缺陷的多个控制分组时，如果控制部分确定包括在其有效载荷部分中有缺陷的控制分组的报头部分中的源地址包括 与其他源地址不同的源地址，控制部判定为从多个终端发送控制分组并发生冲突。

公开(公告)号：US20110261706A1

公开(公告)日：2011-10-27

申请号：US12808007

申请日：2009-10-02

申请人： Yuki Fujiwara ,  Yosuke Matsushita ,  Hideki Homma ,  Naoki Morita

发明人： Yuki Fujiwara ,  Yosuke Matsushita ,  Hideki Homma ,  Naoki Morita

IPC分类号： H04L12/56 ,  H04L12/26

CPC分类号： H04B3/54 ,  H04B2203/5445 ,  H04L45/02 ,  H04L45/121 ,  H04L45/22 ,  H04L45/26

摘要： A source apparatus writes, in a route request packet, the number of routes requested by the source apparatus. When a relay apparatus receives a route request packet for the first time, the relay apparatus determines a waiting time period, based on a route evaluation value that indicates a state of a route through which the route request packet has passed, and starts a timer. The relay apparatus selects route request packets having as high route evaluation values as possible, among route request packets that have been received until the timer expires, the number of route request packets to be selected being equal to the number of routes requested by the source apparatus, and then broadcasts the selected route request packets.

摘要翻译： 源设备在路由请求分组中写入源设备请求的路由数。 当中继装置第一次接收到路由请求分组时，中继装置根据路由评估值确定等待时间，该路径评价值表示路径请求分组已通过的路径的状态，并启动定时器。 中继装置在定时器到期之前已经接收的路由请求分组中选择具有尽可能高的路由评估值的路由请求分组，要选择的路由请求分组的数量等于源设备请求的路由数量 ，然后广播所选择的路由请求分组。

公开(公告)号：US08427957B2

公开(公告)日：2013-04-23

申请号：US12747689

申请日：2009-09-14

申请人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita

发明人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita

IPC分类号： H04L12/28

CPC分类号： H04W40/30 ,  H04L45/00 ,  H04L45/025 ,  H04L45/125 ,  H04L45/22 ,  H04W40/12 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/34

摘要： Provided is a communication terminal that is capable of securing a route having the finest state while suppressing a bandwidth that is consume by a transmission of a control packet at a low level, when applied in an ad-hoc network which uses an electrical power line. The communication terminal included in the ad-hoc network acquires a plurality of route candidates at the beginning of a data transmission by conducting a broadcast transmission of a route creation packet, and acquires a route having the finest state by conducting an unicast transmission of a route estimation packet to each of the route candidates in each predetermined period.

摘要翻译： 提供一种通信终端，当应用于使用电力线的自组织网络时，能够在抑制通过低电平的控制分组的发送消耗的带宽的同时，确保具有最佳状态的路由。 包括在自组织网络中的通信终端通过进行路由创建分组的广播发送，在数据传输开始时获取多个路由候选，并且通过进行路由的单播传输来获取具有最佳状态的路由 估计分组到每个预定周期中的每个路由候选。

公开(公告)号：US20120087255A1

公开(公告)日：2012-04-12

申请号：US13060165

申请日：2010-05-20

申请人： Yosuke Ukita ,  Yosuke Matsushita ,  Hideki Homma

发明人： Yosuke Ukita ,  Yosuke Matsushita ,  Hideki Homma

IPC分类号： H04L12/56 ,  H04L12/26

CPC分类号： H04L12/66 ,  H04L12/4625 ,  H04L29/12594 ,  H04L61/30

摘要： The present invention provides a relay apparatus 130 for, even Wan information providing apparatus that distributes a content is changed, assuring a communication quality for the content to be distributed, and preventing a disturbed image from being distributed to a terminal apparatus. If a response packet received from an information providing apparatus having a first domain name indicates a transfer request, the relay apparatus 130 updates a service information table such that a second domain name indicating a second information providing apparatus, included in the response packet, is associated with the first domain name.

摘要翻译： 本发明提供一种中继装置130，用于均匀分配内容的Wan信息提供装置，确保要分发的内容的通信质量，并防止干扰的图像分发到终端装置。 如果从具有第一域名的信息提供装置接收到的响应包指示传送请求，则中继装置130更新服务信息表，使得包括在响应包中的指示第二信息提供装置的第二域名相关联 与第一个域名。

公开(公告)号：US09008090B2

公开(公告)日：2015-04-14

申请号：US12666198

申请日：2009-04-23

申请人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita ,  Go Kuroda

发明人： Yosuke Matsushita ,  Yuki Fujiwara ,  Hideki Homma ,  Naoki Morita ,  Go Kuroda

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04W74/08 ,  H04L12/939 ,  H04L29/06 ,  H04W40/30 ,  H04W84/18 ,  H04B3/54

CPC分类号： H04W74/0825 ,  H04B3/54 ,  H04L29/0653 ,  H04L49/55 ,  H04W40/30 ,  H04W84/18

摘要： A communication apparatus which, in an ad-hoc network, when receiving control packets from a plurality of terminals, can determine whether or not there is a collision among the control packets, and, based on the determination, can be prevented from continuing to be out of the network due to a collision among the control packets transmitted from the plurality of terminals. In the communication terminal, a communication section receives a control packet which periodically comes up on a communication path. When the communication apparatus receives a plurality of control packets which are defective in at least payload portions thereof within a predetermined time period, if a control section determines that source addresses included in header portions of the control packets which are defective in the payload portions thereof include a source address which is not identical to the other source addresses, the control section determines that the control packets are transmitted from a plurality of terminals and collide with each other.

摘要翻译： 在自组织网络中，当从多个终端接收到控制分组时，可以确定控制分组之间是否存在冲突的通信装置，并且可以防止基于该确定继续存在 由于从多个终端发送的控制分组之间的冲突，出现网络外。 在通信终端中，通信部接收在通信路径上周期性地出现的控制分组。 当通信装置在预定时间段内至少在其有效载荷部分中接收到有缺陷的多个控制分组时，如果控制部分确定包括在其有效载荷部分中有缺陷的控制分组的报头部分中的源地址包括 与其他源地址不同的源地址，控制部判定为从多个终端发送控制分组并发生冲突。

公开(公告)号：US08385336B2

公开(公告)日：2013-02-26

申请号：US12808007

申请日：2009-10-02

申请人： Yuki Fujiwara ,  Yosuke Matsushita ,  Hideki Homma ,  Naoki Morita

发明人： Yuki Fujiwara ,  Yosuke Matsushita ,  Hideki Homma ,  Naoki Morita

IPC分类号： H04L12/28

CPC分类号： H04B3/54 ,  H04B2203/5445 ,  H04L45/02 ,  H04L45/121 ,  H04L45/22 ,  H04L45/26

摘要： A source apparatus writes, in a route request packet, the number of routes requested by the source apparatus. When a relay apparatus receives a route request packet for the first time, the relay apparatus determines a waiting time period, based on a route evaluation value that indicates a state of a route through which the route request packet has passed, and starts a timer. The relay apparatus selects route request packets having as high route evaluation values as possible, among route request packets that have been received until the timer expires, the number of route request packets to be selected being equal to the number of routes requested by the source apparatus, and then broadcasts the selected route request packets.

摘要翻译： 源设备在路由请求分组中写入源设备请求的路由数。 当中继装置第一次接收到路由请求分组时，中继装置根据路由评估值确定等待时间，该路径评价值表示路径请求分组已通过的路径的状态，并启动定时器。 中继装置在定时器到期之前已经接收的路由请求分组中选择具有尽可能高的路由评估值的路由请求分组，要选择的路由请求分组的数量等于源设备请求的路由数量 ，然后广播所选择的路由请求分组。