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    • 2. 发明申请
    • Protocol Conversion System in Media Communication between a Packet-Switching Network and Circuit-Switiching Network
    • 分组交换网络和电路交换网络之间的媒体通信中的协议转换系统
    • US20100128715A1
    • 2010-05-27
    • US12089266
    • 2006-09-26
    • Hiroaki DeiKazunori OzawaKazuhiro KoyamaTatsuya Nakazawa
    • Hiroaki DeiKazunori OzawaKazuhiro KoyamaTatsuya Nakazawa
    • H04L12/66H04J3/22
    • H04M7/1205H04L65/1006H04L65/1009H04L65/104
    • In media communication by way of a packet-switching network and a circuit-switching network, a protocol conversion device for converting protocols between the packet-switching network and the circuit-switching network includes a call connection unit and a protocol converter. The call connection unit carries out call connection processes of media communication between terminals of the packet-switching network side and terminals of the circuit-switching network side. The protocol converter analyzes packets of speech received from the packet-switching network to specify the encoding bit rate of speech data in the speech packets. The protocol converter then specifies the multiplex table used in multiplexing frames on the circuit-switching network from the encoding bit rate. The protocol converter further generates frames by using the multiplex table that was specified to multiplex data in the payload of packets received from the packet-switching network and transmits to the circuit-switching network.
    • 在通过分组交换网络和电路交换网络的媒体通信中,用于在分组交换网络和电路交换网络之间转换协议的协议转换装置包括呼叫连接单元和协议转换器。 呼叫连接单元进行分组交换网侧的终端与电路交换网侧的终端之间的媒体通信的呼叫连接处理。 协议转换器分析从分组交换网络接收到的语音分组,以指定语音分组中的语音数据的编码比特率。 协议转换器然后从编码比特率指定在电路交换网络上复用帧中使用的多路复用表。 协议转换器还通过使用被指定为复用从分组交换网络接收到的分组的有效载荷中的数据的多路复用表来生成帧,并发送到电路交换网络。
    • 3. 发明授权
    • Method, apparatus, system, and program for switching image coded data
    • 用于切换图像编码数据的方法,装置,系统和程序
    • US07653251B2
    • 2010-01-26
    • US11208886
    • 2005-08-23
    • Hiroaki DeiKazuhiro KoyamaKazunori Ozawa
    • Hiroaki DeiKazuhiro KoyamaKazunori Ozawa
    • G06K9/36
    • H04N7/152H04N21/23424H04N21/234309H04N21/234354H04N21/234363H04N21/234381H04N21/2662H04N21/632H04N21/6377
    • A conversion server and a plurality of clients are connected via a transmission line. The conversion server that receives image coded data from the clients converts the image coding system in accordance with the coding system available to each client, the coding setting, and the status of the transmission line, and transmits the converted image coded data. For a client where the number of images that can be displayed is limited, the conversion server decodes a selected plurality items of image coded data, re-encodes the selected pieces into one composite image, and transmits the re-encoded image. The conversion server also comprises decoding processing units, one for each connected client, for decoding image coded data from each client. In response to a display image switching request from a client, the conversion server intraframe-codes the decoded image data of an image that will be used after the switching and transmits the intraframe-coded data. This enables an image to be switched quickly independently of the intraframe time of received image coded data that will be used after the switching.
    • 转换服务器和多个客户端经由传输线连接。 从客户端接收图像编码数据的转换服务器根据可用于每个客户端的编码系统,编码设置和传输线路的状态来转换图像编码系统,并发送转换的图像编码数据。 对于可以显示的图像数量有限的客户端,转换服务器对所选择的多个图像编码数据进行解码,将所选择的片段重新编码为一个合成图像,并发送重新编码的图像。 转换服务器还包括解码处理单元,每个连接的客户机一个,用于对来自每个客户端的图像编码数据进行解码。 响应于来自客户端的显示图像切换请求,转换服务器对切换后将使用的图像的解码图像数据进行帧内编码,并发送帧内编码数据。 这使得可以独立于在切换之后将使用的接收图像编码数据的帧内时间来快速切换图像。
    • 4. 发明申请
    • Method, apparatus, system, and program for switching image coded data
    • 用于切换图像编码数据的方法,装置,系统和程序
    • US20060045363A1
    • 2006-03-02
    • US11208886
    • 2005-08-23
    • Hiroaki DeiKazuhiro KoyamaKazunori Ozawa
    • Hiroaki DeiKazuhiro KoyamaKazunori Ozawa
    • G06K9/36
    • H04N7/152H04N21/23424H04N21/234309H04N21/234354H04N21/234363H04N21/234381H04N21/2662H04N21/632H04N21/6377
    • A conversion server and a plurality of clients are connected via a transmission line. The conversion server that receives image coded data from the clients converts the image coding system in accordance with the coding system available to each client, the coding setting, and the status of the transmission line, and transmits the converted image coded data. For a client where the number of images that can be displayed is limited, the conversion server decodes a selected plurality items of image coded data, re-encodes the selected pieces into one composite image, and transmits the re-encoded image. The conversion server also comprises decoding processing units, one for each connected client, for decoding image coded data from each client. In response to a display image switching request from a client, the conversion server intraframe-codes the decoded image data of an image that will be used after the switching and transmits the intraframe-coded data. This enables an image to be switched quickly independently of the intraframe time of received image coded data that will be used after the switching.
    • 转换服务器和多个客户端经由传输线连接。 从客户端接收图像编码数据的转换服务器根据可用于每个客户端的编码系统,编码设置和传输线路的状态来转换图像编码系统,并发送转换的图像编码数据。 对于可以显示的图像数量有限的客户端,转换服务器对所选择的多个图像编码数据进行解码,将所选择的片段重新编码为一个合成图像,并发送重新编码的图像。 转换服务器还包括解码处理单元,每个连接的客户机一个,用于对来自每个客户端的图像编码数据进行解码。 响应于来自客户端的显示图像切换请求,转换服务器对切换后将使用的图像的解码图像数据进行帧内编码,并发送帧内编码数据。 这使得可以独立于在切换之后将使用的接收图像编码数据的帧内时间来快速切换图像。