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1. 发明专利

JP2013192024A Image transmitter and program thereof, and image receiver and program thereof 审中-公开
标题翻译：图像发送器及其程序及其图像接收器及其程序
公开(公告)号：JP2013192024A
公开(公告)日：2013-09-26
申请号：JP2012056640
申请日：2012-03-14
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： AOKI KATSUNORI , KUROZUMI MASAAKI , KOYAMA TOMOHITO , ODA SHUHEI , ISHIKAWA KIYOHIKO , YAMAMOTO MAKOTO
IPC分类号： H04N7/32
摘要： PROBLEM TO BE SOLVED: To provide an image transmission system which, in the case of predictive coding and transmission of an image signal, is capable of reducing information for generating a prediction signal to be transmitted from an image transmitter to an image receiver.SOLUTION: In an image transmission system S, an image receiver 30 generates plural candidates of a prediction signal from already decoded image signals to transmit to the image transmitter 10, and the image transmitter 10 selects a prediction signal from among the candidates, codes an image signal, and transmits to the image receiver 30 the image signal with information to identify the selected prediction signal, which allows the image receiver 30 to decode the image signal using the selected prediction signal.
摘要翻译：要解决的问题：提供一种图像传输系统，其在图像信号的预测编码和传输的情况下能够减少用于生成要从图像发送器发送到图像接收器的预测信号的信息。解决方案：在图像传输系统S中，图像接收器30从已经解码的图像信号生成预测信号的多个候选，以发送到图像发送器10，并且图像发送器10从候选中选择预测信号，对图像信号进行编码，并且向图像接收器30发送具有识别所选择的预测信号的信息的图像信号，其允许图像接收器30使用所选择的预测信号对图像信号进行解码。

2. 发明专利

JP2012134907A Tcp transfer apparatus and program thereof 审中-公开
标题翻译： TCP传输设备及其程序
公开(公告)号：JP2012134907A
公开(公告)日：2012-07-12
申请号：JP2010287136
申请日：2010-12-24
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： KOYAMA TOMOHITO , AOKI KATSUNORI , ODA SHUHEI , KUROZUMI MASAAKI , YAMAMOTO MAKOTO
IPC分类号： H04L12/801 , H04L12/803 , H04L12/841 , H04L12/911 , H04L29/00 , H04L29/08
摘要： PROBLEM TO BE SOLVED: To provide a TCP transfer apparatus which can improve TCP transmission throughput even in cases where a high-speed retransfer algorithm is adopted and the order in which TCP packets arrive is altered by a difference in delay per logic line.SOLUTION: A TCP divided transfer apparatus 3 comprises a TCP packet receive unit 31 which receives TCP packets; a path select unit 33 which selects one logic line L from a plurality of logic lines L and generates transfer information which includes information on a selected logic line; an ACK control unit 35 which destroys an ACK packet when a valid filter is set, or lets an ACK packet pass when a valid filter is not set; a delay amount setting unit 36 which measures a logic line delay amount in advance; and a TCP packet transmit unit 37 which transmits the ACK packet which was permitted to pass by the ACK control unit 35 to a TCP transmit apparatus 1.
摘要翻译：要解决的问题：提供一种TCP传送装置，即使在采用高速重传算法的情况下也可以提高TCP传输吞吐量，并且TCP分组到达的顺序被每个逻辑线的延迟差改变。解决方案：TCP分组传送装置3包括TCP分组接收单元31，其接收TCP分组; 路径选择单元33，其从多条逻辑线L中选择一条逻辑线L，并生成包含关于所选逻辑线的信息的传送信息; ACK控制单元35，当设置有效过滤器时，销毁ACK分组，或者当没有设置有效过滤器时，使ACK分组通过; 延迟量设定单元36，其预先测量逻辑线延迟量; 以及TCP分组发送单元37，其将由ACK控制单元35允许通过的ACK分组发送到TCP发送装置1.版权所有：（C）2012，JPO＆INPIT

3. 发明专利

JP2013098759A Data transmission device and data reception device 有权
标题翻译：数据传输设备和数据接收设备
公开(公告)号：JP2013098759A
公开(公告)日：2013-05-20
申请号：JP2011239970
申请日：2011-11-01
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： KOYAMA TOMOHITO , AOKI KATSUNORI , ODA SHUHEI , KUROZUMI MASAAKI , YAMAMOTO MAKOTO
IPC分类号： H04L12/801 , H04L12/911
摘要： PROBLEM TO BE SOLVED: To provide a data transmission device capable of estimating a band of cross traffic, and controlling a transmission rate according to the band.SOLUTION: A data transmission device 1 includes: transmission rate measuring means 10 for measuring a transmission rate, and using that as a temporary transmission rate of a packet which is newly transmitted; packet transmitting means 11 for transmission the packet to a data reception deice 2 when the temporary transmission rate is the maximum transmission rate or less; receiving information obtaining means 12 for obtaining a reception rate when the receiving the packet, as receiving information, from the data reception device 2, in associated with an identifier included in the packet; and maximum transmission rate calculating means 13a for calculating and updating the maximum transmission rate, on the basis of a temporary transmission rate corresponding to the packet transmitted by the packet transmitting means 11 and the reception rate corresponding to the identifier of the packet.
摘要翻译：解决的问题：提供能够估计交叉业务频带并根据频带来控制传输速率的数据传输设备。解决方案：数据传输设备1包括：传输速率测量装置10，用于测量传输速率，并将其用作新发送的分组的临时传输速率; 分组发送装置11，用于当临时传输速率为最大传输速率或更小时，将数据包发送到数据接收模块2; 接收信息获取装置12，用于当从数据接收装置2接收到分组中包含的标识符的接收信息时，获得接收速率; 以及最大传输速率计算装置13a，用于根据与分组发送装置11发送的分组相对应的临时传输速率和对应于分组的标识符的接收速率来计算和更新最大传输速率。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012253618A Data transfer device 有权
标题翻译：数据传输设备
公开(公告)号：JP2012253618A
公开(公告)日：2012-12-20
申请号：JP2011125616
申请日：2011-06-03
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： ODA SHUHEI , KOYAMA TOMOHITO , KUROZUMI MASAAKI , AOKI KATSUNORI , YAMAMOTO MAKOTO
IPC分类号： H04L29/08 , H04L12/56 , H04W28/14 , H04W28/18 , H04W84/12
摘要： PROBLEM TO BE SOLVED: To efficiently utilize a transferable band in wireless transfer path even if a link state of the wireless transfer path degrades and a transfer rate drops.SOLUTION: In a transmitter 1-1, a congestion window control part 113-1 of a TCP/IP process part 11-1 calculates a transmittable maximum rate after switching of a modulation method. If it is determined that the maximum rate is equal to a current transmittable maximum rate or less, a transmission rate instruction is outputted to a transmission amount adjusting buffer 114 so that the transmission rate in the transmission amount adjusting buffer 114 comes to be a transmittable maximum rate or less after switching of modulation method. After a predetermined time period has passed, a modulation method switching instruction is outputted to a wireless LAN physical layer 13-1 by way of a wireless LAN driver 12-1. With this configuration, before the modulation method is actually changed and the transfer rate is lowered at the wireless LAN physical layer 13-1, the transmission rate at the transmission amount adjusting buffer 114 of the TCP/IP processing part 11-1 can be lowered.
摘要翻译：要解决的问题：即使无线传送路径的链路状态劣化并且传输速率下降，也能有效地利用无线传送路径中的可传送频带。解决方案：在发送机1-1中，TCP / IP处理部分11-1的拥塞窗口控制部分113-1计算切换调制方法后的可发送最大速率。如果确定最大速率等于当前可发送最大速率或更小，则传输速率指令被输出到传输量调整缓冲器114，使得传输量调整缓冲器114中的传输速率成为可发送最大值速率或更小的调制方式切换后。在经过预定时间段之后，通过无线LAN驱动器12-1将调制方式切换指令输出到无线LAN物理层13-1。利用这种配置，在实际改变调制方法并且在无线LAN物理层13-1处降低传输速率之前，可以降低TCP / IP处理部分11-1的传输量调整缓冲器114的传输速率。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012249005A Video transmission device 有权
标题翻译：视频传输设备
公开(公告)号：JP2012249005A
公开(公告)日：2012-12-13
申请号：JP2011118075
申请日：2011-05-26
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： ODA SHUHEI , KOYAMA TOMOHITO , KUROZUMI MASAAKI , AOKI KATSUNORI , YAMAMOTO MAKOTO
IPC分类号： H04N7/173 , H04W28/18
摘要： PROBLEM TO BE SOLVED: To continue transmission of video data without interruption even if a transmission rate changes in accordance with a propagation situation of a radio transmission path, simultaneous transmission occurs in the same transmission path and the transmission rate drops.SOLUTION: An intermediate driver 12-1 of a transmission device 1-1 calculates a transmittable maximum rate after a modulation system switching, and outputs an encoding rate instruction to an encoder 11 so that an encoding rate becomes the transmittable maximum rate or below after the modulation system switching before a modulation system is actually changed in a radio LAN physical layer 13-1 if the transmittable maximum rate after the modulation system switching is determined to be the present transmittable maximum rate or below. The intermediate driver 12-1 outputs the encoding rate instruction to the encoder 11 after the modulation system is actually changed in the radio LAN physical layer 13-1 when the transmittable maximum rate after the modulation system switching is determined to be higher than the present transmittable maximum rate.
摘要翻译：要解决的问题：即使传输速率根据无线传输路径的传播情况而变化，也可以不间断地继续传输视频数据，同时发送在相同的传输路径上，并且传输速率下降。解决方案：传输设备1-1的中间驱动器12-1计算调制系统切换后的可发送最大速率，并将编码速率指令输出到编码器11，使得编码速率成为可传输的最大速率;或者如果将调制系统切换后的可发送最大速率确定为当前的可发送最大速率或更低，则在调制系统在无线电LAN物理层13-1中实际改变之前的调制系统切换之后。中间驱动器12-1在将调制系统切换后的可发送最大速率确定为高于当前可传输的时间后，在无线电LAN物理层13-1中实际改变调制系统之后，向编码器11输出编码速率指令最高费率。版权所有（C）2013，JPO＆INPIT

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