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1. 发明申请

US20100128715A1 Protocol Conversion System in Media Communication between a Packet-Switching Network and Circuit-Switiching Network 审中-公开
标题翻译：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
公开(公告)号：US20100128715A1
公开(公告)日：2010-05-27
申请号：US12089266
申请日：2006-09-26
申请人： Hiroaki Dei , Kazunori Ozawa , Kazuhiro Koyama , Tatsuya Nakazawa
发明人： Hiroaki Dei , Kazunori Ozawa , Kazuhiro Koyama , Tatsuya Nakazawa
IPC分类号： H04L12/66 , H04J3/22
CPC分类号： H04M7/1205 , H04L65/1006 , H04L65/1009 , H04L65/104
摘要： 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.
摘要翻译：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。

2. 发明授权

US07653251B2 Method, apparatus, system, and program for switching image coded data 有权
标题翻译：用于切换图像编码数据的方法，装置，系统和程序
公开(公告)号：US07653251B2
公开(公告)日：2010-01-26
申请号：US11208886
申请日：2005-08-23
申请人： Hiroaki Dei , Kazuhiro Koyama , Kazunori Ozawa
发明人： Hiroaki Dei , Kazuhiro Koyama , Kazunori Ozawa
IPC分类号： G06K9/36
CPC分类号： H04N7/152 , H04N21/23424 , H04N21/234309 , H04N21/234354 , H04N21/234363 , H04N21/234381 , H04N21/2662 , H04N21/632 , H04N21/6377
摘要： 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.
摘要翻译：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。

3. 发明申请

US20070223660A1 Audio Communication Method And Device 审中-公开
标题翻译：音频通信方法和设备
公开(公告)号：US20070223660A1
公开(公告)日：2007-09-27
申请号：US11547748
申请日：2005-04-08
申请人： Hiroaki Dei , Kazunori Ozawa , Tatsuya Nakazawa , Kazuhiro Koyama
发明人： Hiroaki Dei , Kazunori Ozawa , Tatsuya Nakazawa , Kazuhiro Koyama
IPC分类号： H04M11/00
CPC分类号： G10L19/24
摘要： An audio communication device includes a plurality of encoding units and decoding units, and switches the encoding format from one to another according to the useable transmission band or to a user audio quality request or to a delay request. The audio encoded data that is received is decoded by selecting an optimal decoding unit according to the encoding format identifier added to the data or according to set information notified from audio communication device 201 of the communication partner. The audio data decoded is temporality stored in audio data buffer 216 and reproduced. The amount of audio data stored in the audio data buffer is controlled so that audio is reproduced without pause.
摘要翻译：音频通信设备包括多个编码单元和解码单元，并且根据可用的传输频带或用户音频质量请求或延迟请求将编码格式从一个切换到另一个。通过根据添加到数据的编码格式标识符来选择最佳解码单元，或根据从通信伙伴的音频通信设备201通知的设置信息来解码所接收的音频编码数据。被解码的音频数据是暂时存储在音频数据缓冲器216中并被再现的。控制存储在音频数据缓冲器中的音频数据的数量，使得不间断地再现音频。

4. 发明申请

US20060133489A1 Moving picture compression encoding method, apparatus and program 审中-公开
标题翻译：运动图像压缩编码方法，装置和程序
公开(公告)号：US20060133489A1
公开(公告)日：2006-06-22
申请号：US11312608
申请日：2005-12-21
申请人： Kazuteru Watanabe , Kazunori Ozawa , Hiroaki Dei , Kazuhiro Koyama
发明人： Kazuteru Watanabe , Kazunori Ozawa , Hiroaki Dei , Kazuhiro Koyama
IPC分类号： H04N7/12 , H04N11/04 , H04B1/66 , H04N11/02
CPC分类号： H04N19/105 , H04N19/107 , H04N19/137 , H04N19/176 , H04N19/593 , H04N19/61
摘要： Disclosed are an apparatus and method that make possible high-speed mode selection using an evaluation standard of high encoding efficiency in intra prediction. The apparatus includes a first cost calculator for generating cost values from difference information indicative of differences between prediction signals, which have been generated by a prediction signal generator, and a moving picture signal that is input to a moving picture compression encoding apparatus; a preliminary selector for selecting at least two prediction modes based upon the cost values and outputting these prediction modes to a second cost calculator; the second cost calculator for frequency-converting the prediction modes that have been output from the preliminary selector and generating new cost values; and a prediction mode selector for selecting the optimum prediction mode based upon the cost values prevailing after the frequency conversion.
摘要翻译：公开了使用帧内预测中的高编码效率的评价标准进行高速模式选择的装置和方法。该装置包括：第一成本计算器，用于从表示由预测信号发生器产生的预测信号之间的差异的差异信息和输入到运动图像压缩编码装置的运动图像信号产生成本值; 初步选择器，用于基于成本值选择至少两个预测模式，并将这些预测模式输出到第二成本计算器; 第二成本计算器，用于对从预备选择器输出的预测模式进行频率转换并产生新的成本值; 以及预测模式选择器，用于基于频率转换之后的成本值来选择最佳预测模式。

5. 发明申请

US20060045363A1 Method, apparatus, system, and program for switching image coded data 有权
标题翻译：用于切换图像编码数据的方法，装置，系统和程序
公开(公告)号：US20060045363A1
公开(公告)日：2006-03-02
申请号：US11208886
申请日：2005-08-23
申请人： Hiroaki Dei , Kazuhiro Koyama , Kazunori Ozawa
发明人： Hiroaki Dei , Kazuhiro Koyama , Kazunori Ozawa
IPC分类号： G06K9/36
CPC分类号： H04N7/152 , H04N21/23424 , H04N21/234309 , H04N21/234354 , H04N21/234363 , H04N21/234381 , H04N21/2662 , H04N21/632 , H04N21/6377
摘要： 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.
摘要翻译：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。

6. 发明授权

US08253775B2 Multipoint conference system, multipoint conference method, and program 失效
标题翻译：多点会议系统，多点会议方式和程序
公开(公告)号：US08253775B2
公开(公告)日：2012-08-28
申请号：US11993934
申请日：2006-06-08
申请人： Daisuke Mizuno , Hiroaki Dei , Kazunori Ozawa
发明人： Daisuke Mizuno , Hiroaki Dei , Kazunori Ozawa
IPC分类号： H04R7/14
CPC分类号： H04N7/152 , H04M3/562 , H04M3/567
摘要： A multipoint videoconference server is made to swiftly respond to a video switching request from a terminal and a degree of computational complexity is made lower. A server 300 decodes only m (1
摘要翻译：多点视频会议服务器能够迅速响应来自终端的视频切换请求，并使计算复杂度降低。服务器300仅解码从n个终端中选择的m（1

7. 发明授权

US07957465B2 Moving picture data code conversion/transmission method and device, code conversion/reception method and device 失效
标题翻译：运动图像数据代码转换/传输方法和装置，代码转换/接收方法和装置
公开(公告)号：US07957465B2
公开(公告)日：2011-06-07
申请号：US10512458
申请日：2003-04-28
申请人： Hiroaki Dei , Atsushi Hatabu , Kazunori Ozawa
发明人： Hiroaki Dei , Atsushi Hatabu , Kazunori Ozawa
IPC分类号： H04N7/12
CPC分类号： H04N19/895 , H04N19/40 , H04N19/61
摘要： A code conversion/transmission apparatus for being supplied with compressed encoded data and converting and outputting the data to a transmission path has code converter/transmitters for outputting the encoded data input thereto and encoded data produced by re-encoding the encoded data input thereto, or outputting a plurality of encoded data comprising encoded data produced by separately re-encoding the encoded data input thereto, respectively, and transmitting the plurality of encoded data to at least one transmission path. At least a portion of the encoded data input thereto and at least a portion of the re-encoded encoded data are transmitted to the transmission path.
摘要翻译：用于提供压缩编码数据并将数据转换并输出到传输路径的代码转换/发送装置具有用于输出输入的编码数据的代码转换器/发送器和对其输入的编码数据进行重新编码产生的编码数据，输出多个编码数据，所述编码数据包括通过分别重新编码输入到其中的编码数据而产生的编码数据，并将所述多个编码数据发送到至少一个传输路径。输入到其中的编码数据的至少一部分和重新编码的编码数据的至少一部分被发送到传输路径。

8. 发明授权

US07298295B2 Method, apparatus, system, and program for code conversion transmission and code conversion reception of audio data 有权
公开(公告)号：US07298295B2
公开(公告)日：2007-11-20
申请号：US11443692
申请日：2006-05-31
申请人： Kazunori Ozawa , Hiroaki Dei , Atsushi Hatabu
发明人： Kazunori Ozawa , Hiroaki Dei , Atsushi Hatabu
IPC分类号： H03M7/00
CPC分类号： G10L19/005 , G10L19/00 , G10L19/008 , G10L19/24 , H04L1/0045 , H04L1/0061 , H04L1/08
摘要： A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatus 100 for inputting audio coded data includes first to N-th code conversion and transmission units 102 and 104 to 106 for converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines 130. The second to N-th audio code conversion and transmission units 104 to 106 codes a frame at a compression rate equal to or higher than the rate of input coded data. The code conversion and reception apparatus 120 selects a transmission line using a selection unit 107, and selecting data from correctly received coded data in a frame or packet unit, thereby reconfiguring the coded data using a coded data reconfiguration unit 112.

9. 发明授权

US08239901B2 Buffer control method, relay apparatus, and communication system 有权
标题翻译：缓冲控制方法，中继装置和通信系统
公开(公告)号：US08239901B2
公开(公告)日：2012-08-07
申请号：US12281665
申请日：2007-03-09
申请人： Ryota Takeshima , Hiroaki Dei , Kazunori Ozawa
发明人： Ryota Takeshima , Hiroaki Dei , Kazunori Ozawa
IPC分类号： H04N7/173
CPC分类号： H04N7/148 , H04L29/06027 , H04L65/103 , H04L65/104 , H04L65/605 , H04L65/80
摘要： Disclosed is a relay apparatus including a video buffer control unit that controls a video buffer according to a control instruction received by an instruction receiving unit, a threshold set by a threshold setting unit, and a timing set by a timing generation unit. The video buffer control unit controls the video buffer for each segment, according to a result of analysis by a segment interpretation unit.
摘要翻译：公开了一种中继装置，包括视频缓冲器控制单元，其根据由指令接收单元接收的控制指令，阈值设置单元设置的阈值以及由定时生成单元设置的定时来控制视频缓冲器。视频缓冲器控制单元根据段解释单元的分析结果对每个段控制视频缓冲器。

10. 发明授权

US08055974B2 Content distribution method, encoding method, reception/reproduction method and apparatus, and program 有权
标题翻译：内容分发方法，编码方法，接收/再现方法和装置以及程序
公开(公告)号：US08055974B2
公开(公告)日：2011-11-08
申请号：US12943073
申请日：2010-11-10
申请人： Daisuke Mizuno , Hiroaki Dei , Kazunori Ozawa
发明人： Daisuke Mizuno , Hiroaki Dei , Kazunori Ozawa
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H04L1/08
摘要： There are provided a content data transmission method, device, and program that minimize serious disturbances in reproduced content on the reception side, caused by a transmission error of encoded data, without sending feedback information from the reception side to the transmission side. When an encoder creates encoded data to be distributed, the encoder creates plural items of encoded data at the same time or creates FEC data at the same time in advance and, when storing the data in a file, stores the data as if the data were one item of encoded data. When a distribution server distributes the data using the file, the plurality of items of encoded data are automatically distributed at the same time and the FEC data is distributed. A client receives the plurality of items of encoded data or the FEC data to reduce the probability of data shortage due to a packet loss and, as a result, the deterioration in the image quality and the audio quality is reduced.
摘要翻译：提供了一种内容数据发送方法，装置和程序，其使由编码数据的传输错误引起的接收侧的再现内容的严重干扰最小化，而不会从接收侧向发送侧发送反馈信息。当编码器创建要分发的编码数据时，编码器同时创建多个编码数据，或者在提前同时创建FEC数据，并且当将数据存储在文件中时，如同数据是一个编码数据项。当分发服务器使用文件分发数据时，多个编码数据项目被同时自动分发，并且FEC数据被分发。客户端接收多个编码数据项或FEC数据，以减少由于分组丢失导致的数据短缺的概率，结果，降低了图像质量和音频质量。

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