公开(公告)号：EP4007221A1

公开(公告)日：2022-06-01

申请号：EP21829584.8

申请日：2021-05-28

申请人： NEC Corporation

发明人： ONISHI, Takeo

IPC分类号： H04L12/707 ,  H04L12/905

摘要： A communication system (1) according to the present example embodiment includes a reception device (2) and a transmission apparatus (3) communicating with the reception device (2), and the transmission apparatus (3) includes a data processing unit (4) that encapsulates communication data relating to a communication when the communication data are unicast data, and does not encapsulate the communication data at least either when the communication data are multicast data or when the communication data are broadcast data, and a transmission unit (5) that transmits the communication data encapsulated by the data processing unit (4) to the reception device (2). With this, a communication system preventing increase in a communication load can be provided.

公开(公告)号：EP2498492A1

公开(公告)日：2012-09-12

申请号：EP10828052.0

申请日：2010-10-13

申请人： NEC Corporation

发明人： ONISHI, Takeo

IPC分类号： H04N7/173

CPC分类号： H04N21/234 ,  H04N21/26283 ,  H04N21/4331 ,  H04N21/6379

摘要： A distribution system 100 includes a transmission device 110 and a reception device 120. The transmission device transmits content data coded with a certain code rate to the reception device. The reception device, while receiving the content data transmitted by the transmission device, stores received data into a storage device and also reproduces content based on the stored data. The distribution system determines a code rate based on a remaining time before reproduction start time from a present moment and an available reproduction time, which is a time available for reproduction of the content based on the stored data. The transmission device changes the code rate of the content data to be transmitted to the determined code rate. The reception device starts reproduction of the content at the reproduction start point.

摘要翻译： 分配系统100包括发送装置110和接收装置120.发送装置将以特定码率编码的内容数据发送到接收装置。 接收装置在接收到由发送装置发送的内容数据的同时，将接收到的数据存储到存储装置中，并且还基于存储的数据再现内容。 分配系统基于从当前时刻起的再现开始时间之前的剩余时间和可用于基于所存储的数据再现内容的可用再现时间来确定码率。 发送装置将要发送的内容数据的码率改变为所确定的码率。 接收装置在再现开始点开始再现内容。

公开(公告)号：EP2911343B1

公开(公告)日：2019-04-10

申请号：EP13846473.0

申请日：2013-10-02

申请人： NEC Corporation

发明人： ONISHI, Takeo ,  SHIROSHIMA, Takahiro ,  KAWATO, Masahiro ,  OONO, Tadayuki

IPC分类号： H04L12/58 ,  H04M1/733 ,  H04M3/00 ,  H04W4/12 ,  H04W48/18 ,  H04W80/06 ,  H04L29/06 ,  H04L29/08 ,  H04L29/12 ,  H04W28/02 ,  H04W84/12

公开(公告)号：EP2498492B1

公开(公告)日：2018-08-22

申请号：EP10828052.0

申请日：2010-10-13

申请人： NEC Corporation

发明人： ONISHI, Takeo

IPC分类号： H04N21/234 ,  H04N21/262 ,  H04N21/433 ,  H04N21/6379

CPC分类号： H04N21/234 ,  H04N21/26283 ,  H04N21/4331 ,  H04N21/6379

摘要： A distribution system 100 includes a transmission device 110 and a reception device 120. The transmission device transmits content data coded with a certain code rate to the reception device. The reception device, while receiving the content data transmitted by the transmission device, stores received data into a storage device and also reproduces content based on the stored data. The distribution system determines a code rate based on a remaining time before reproduction start time from a present moment and an available reproduction time, which is a time available for reproduction of the content based on the stored data. The transmission device changes the code rate of the content data to be transmitted to the determined code rate. The reception device starts reproduction of the content at the reproduction start point.

公开(公告)号：EP2911343A1

公开(公告)日：2015-08-26

申请号：EP13846473.0

申请日：2013-10-02

申请人： NEC Corporation

发明人： ONISHI, Takeo ,  SHIROSHIMA, Takahiro ,  KAWATO, Masahiro ,  OONO, Tadayuki

IPC分类号： H04L12/58 ,  H04M1/733 ,  H04M3/00 ,  H04W4/12 ,  H04W48/18 ,  H04W80/06

CPC分类号： H04L67/26 ,  H04L61/2503 ,  H04L61/6068 ,  H04L67/14 ,  H04L69/163 ,  H04W28/0215 ,  H04W48/18 ,  H04W84/12

摘要： A terminal, a message distribution system, a message distribution method, and a message distribution program are provided, which are capable of reliably delivering a push message to the terminal from a push server, regardless of a type of network utilized by the terminal, while reducing a processing load of the push server.
The terminal includes a network status detection unit 11 which detects a status of a network connecting the terminal and a distribution device performing push-type message distribution, and a reception unit 12 which determines, based on a result of the detection, whether the terminal and the distribution device are located in a same IP address space, selects, if the terminal and the distribution device are not located in the same IP address space, a first communication method utilizing a pre-established TCP session, selects, if the terminal and the distribution device are located in the same IP address space, a second communication method utilizing a TCP session between the distribution device and the terminal, which is newly established by the distribution device when a message is distributed, and receives a message from the distribution device.

摘要翻译： 提供终端，消息发布系统，消息分发方法和消息分发程序，其能够从推送服务器可靠地向终端提供推送消息，而不管终端利用的网络的类型，而 减少推送服务器的处理负载。 终端包括网络状态检测单元11，其检测连接终端的网络的状态和执行推送型消息分发的分发设备;以及接收单元12，其基于检测结果来确定终端和 分配设备位于相同的IP地址空间中，如果终端和分发设备不位于相同的IP地址空间中，则选择利用预先建立的TCP会话的第一通信方法，如果终端和 分发设备位于相同的IP地址空间中，第二通信方法利用分发设备和终端之间的TCP会话，当分发设备分发时由分发设备新建立，并且从分发设备接收消息。