公开(公告)号：US20090207232A1

公开(公告)日：2009-08-20

申请号：US11993934

申请日：2006-06-08

Applicant: Daisuke Mizuno ,  Hiroaki Dei ,  Kazunori Ozawa

Inventor： Daisuke Mizuno ,  Hiroaki Dei ,  Kazunori Ozawa

IPC: H04N7/15 ,  H04N7/14

CPC classification number: H04N7/152 ,  H04M3/562 ,  H04M3/567

Abstract: 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

Abstract translation: 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仅对从n个终端中选择的m（1

公开(公告)号：US07397411B2

公开(公告)日：2008-07-08

申请号：US11543425

申请日：2006-10-05

Applicant: Kazunori Ozawa ,  Hiroaki Dei ,  Atsushi Hatabu

Inventor： Kazunori Ozawa ,  Hiroaki Dei ,  Atsushi Hatabu

IPC: H03M7/00

CPC classification number: G10L19/005 ,  G10L19/00 ,  G10L19/008 ,  G10L19/24 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/08

Abstract: 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.

Abstract translation: 在没有来自接收机的反馈信息的情况下，提供了抑制由于音频编码数据的传输错误引起的解码音质的突然劣化的系统和方法，从而减少了接收侧所需传输频带数量和算术复杂度的增加 。 用于输入音频编码数据的代码转换和发送装置100包括用于将音频数据转换为N个编码数据的第一至第N代码转换和发送单元102和104至106，以及以预定或自适应变化的时间间隔发送数据 到M个传输线130。 第二至第N音频编码转换和发送单元104至106以等于或高于输入编码数据的速率的压缩率对帧进行编码。 代码转换和接收装置120使用选择单元107选择传输线，并且从帧或分组单元中的正确接收的编码数据中选择数据，由此使用编码数据重新配置单元112重新配置编码数据。

公开(公告)号：US07180434B2

公开(公告)日：2007-02-20

申请号：US10512648

申请日：2003-04-23

Applicant: Kazunori Ozawa ,  Hiroaki Dei ,  Atsushi Hatabu

Inventor： Kazunori Ozawa ,  Hiroaki Dei ,  Atsushi Hatabu

IPC: H03M7/00

CPC classification number: G10L19/005 ,  G10L19/00 ,  G10L19/008 ,  G10L19/24 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/08

Abstract: 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.

Abstract translation: 在没有来自接收机的反馈信息的情况下，提供了抑制由于音频编码数据的传输错误引起的解码音质的突然劣化的系统和方法，从而减少了接收侧所需传输频带数量和算术复杂度的增加 。 用于输入音频编码数据的代码转换和发送装置100包括用于将音频数据转换为N个编码数据的第一至第N代码转换和发送单元102和104至106，以及以预定或自适应变化的时间间隔发送数据 到M个传输线130。 第二至第N音频编码转换和发送单元104至106以等于或高于输入编码数据的速率的压缩率对帧进行编码。 代码转换和接收装置120使用选择单元107选择传输线，并且从帧或分组单元中的正确接收的编码数据中选择数据，由此使用编码数据重新配置单元112重新配置编码数据。

公开(公告)号：US20050117643A1

公开(公告)日：2005-06-02

申请号：US10505668

申请日：2003-04-25

Applicant: Atsushi Hatabu ,  Kazunori Ozawa ,  Hiroaki Dei

Inventor： Atsushi Hatabu ,  Kazunori Ozawa ,  Hiroaki Dei

IPC: H04N19/50 ,  H04N7/50 ,  H04N7/68 ,  H04N19/102 ,  H04N19/134 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/625 ,  H04N19/65 ,  H04N19/70 ,  H04N19/89 ,  H04N19/91 ,  H04N21/438 ,  H04N7/12

CPC classification number: H04N21/25808 ,  H04N19/115 ,  H04N19/156 ,  H04N19/39 ,  H04N19/61 ,  H04N19/895 ,  H04N21/2662

Abstract: A transmission side has first through Nth moving picture encoder/senders (101-1 through 101-N) for compressing moving picture frames into N encoded data and sending the encoded data. Second through Nth moving picture encoder/senders (101-2 through 101-N) compress frames encoded by the first moving picture encoder/sender (101-1) at compression ratios, which are higher than that of the first encoder/sender, using interframe prediction parameters and residual image data which are obtained in compression performed by the first moving picture encoder/sender (101-1) or a reference frame used in compression by the first moving picture encoder/sender (101-1). Each one of reception sides selects the encoded data having the lowest compression ratio and high image quality with frame-by-frame-selection or packet-by-packet-selection from the encoded data received without error and decodes the selected encoded data.

Abstract translation: 发送侧具有用于将运动图像帧压缩为N个编码数据并发送编码数据的第一至第N运动图像编码器/发送器（101-1至101-N）。 第二至第N运动图像编码器/发送器（101-2至101-N）以比第一编码器/发送器高的压缩比压缩由第一运动图像编码器/发送器（101-1）编码的帧，使用 在由第一运动图像编码器/发送器（101-1）执行的压缩中获得的帧间预测参数和残差图像数据或由第一运动图像编码器/发送器（101-1）压缩使用的参考帧。 接收侧中的每一个接收侧从没有错误地接收的编码数据逐帧选择或逐分组选择选择具有最低压缩比和高图像质量的编码数据，并对所选择的编码数据进行解码。

公开(公告)号：US08369881B2

公开(公告)日：2013-02-05

申请号：US12517536

申请日：2007-11-27

Applicant: Hiroaki Dei ,  Kazuteru Watanabe

Inventor： Hiroaki Dei ,  Kazuteru Watanabe

IPC: H04B7/00

CPC classification number: H04N7/15 ,  H04L65/4061

Abstract: A PTT server includes a controlling unit, a receiving unit, a medium converting unit, and a transmitting unit. The controlling unit controls pieces of connection setting information less than the number of a plurality of PTT terminals having different specifications by complying them with the plurality of PTT terminals. The receiving unit receives a medium coded data from any one of the PTT terminals. The medium converting unit converts the medium coded data with a converting method on the basis of the connection setting information compliant with a PTT terminal for transmission destination to produce an output coded data. The transmitting unit transmits the output coded data to the PTT terminal for the transmission destination.

Abstract translation: PTT服务器包括控制单元，接收单元，介质转换单元和发送单元。 控制单元通过与多个PTT终端一致地控制小于具有不同规格的多个PTT终端的号码的连接设置信息。 接收单元从任何一个PTT终端接收中间编码数据。 介质转换单元基于与用于发送目的地的PTT终端一致的连接设置信息，通过转换方法来转换介质编码数据，以产生输出编码数据。 发送单元将输出编码数据发送到用于发送目的地的PTT终端。

公开(公告)号：US20110194604A1

公开(公告)日：2011-08-11

申请号：US13088857

申请日：2011-04-18

Applicant: Hiroaki DEI ,  Atsushi HATABU ,  Kazunori OZAWA

Inventor： Hiroaki DEI ,  Atsushi HATABU ,  Kazunori OZAWA

IPC: H04N7/12

CPC classification number: H04N19/895 ,  H04N19/40 ,  H04N19/61

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07729311B2

公开(公告)日：2010-06-01

申请号：US10559777

申请日：2004-06-01

Applicant: Hiroaki Dei

Inventor： Hiroaki Dei

IPC: H04W4/00 ,  H04W36/00 ,  H04N5/445

CPC classification number: H04N21/44209 ,  H04N21/2343 ,  H04N21/41407

Abstract: An image data communication system that enables a suppression of the loss of data during a handover interval without entailing insufficiency of network resources includes: image data distribution device for sequentially distributing, with prescribed time differences, encoded image data 1 and 2 in which an identical image has been encoded; and image data reception device for receiving encoded image data 1 and 2 that have been distributed from image data distribution device while moving among a plurality of radio areas. Image data reception device, at the time of handover that occurs during movement from a current radio area to another neighboring radio area, receives over a prescribed interval encoded image data 1 and 2 having prescribed time differences that are distributed from image data distribution device, and selects necessary data from the encoded image data 1 and 2 that have been received to reconstruct one set of encoded image data.

Abstract translation: 一种图像数据通信系统，其能够抑制切换间隔期间的数据丢失，而不会造成网络资源不足，包括：图像数据分配装置，用于以规定的时间差顺序分配编码图像数据1和2，其中相同的图像 已编码; 以及图像数据接收装置，用于在多个无线电区域之间移动时接收从图像数据分配装置分发的编码图像数据1和2。 图像数据接收装置在从当前无线电区域移动到另一个相邻无线电区域期间发生的切换时，从规定的间隔接收具有从图像数据分配装置分发的规定时间差的编码图像数据1和2，以及 从已经被接收的编码图像数据1和2中选择必要的数据以重构一组编码图像数据。

公开(公告)号：US20090313676A1

公开(公告)日：2009-12-17

申请号：US12281665

申请日：2007-03-09

Applicant: Ryota Takeshima ,  Hiroaki Dei ,  Kazunori Ozawa

Inventor： Ryota Takeshima ,  Hiroaki Dei ,  Kazunori Ozawa

IPC: H04N7/173

CPC classification number: H04N7/148 ,  H04L29/06027 ,  H04L65/103 ,  H04L65/104 ,  H04L65/605 ,  H04L65/80

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070223660A1

公开(公告)日：2007-09-27

申请号：US11547748

申请日：2005-04-08

Applicant: Hiroaki Dei ,  Kazunori Ozawa ,  Tatsuya Nakazawa ,  Kazuhiro Koyama

Inventor： Hiroaki Dei ,  Kazunori Ozawa ,  Tatsuya Nakazawa ,  Kazuhiro Koyama

IPC: H04M11/00

CPC classification number: G10L19/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070177719A1

公开(公告)日：2007-08-02

申请号：US10587752

申请日：2005-01-24

Applicant: Hiroaki Dei ,  Daisuke Mizuno ,  Kazunori Ozawa

Inventor： Hiroaki Dei ,  Daisuke Mizuno ,  Kazunori Ozawa

IPC: H04L9/28

CPC classification number: H04L1/0041 ,  H04L1/0071 ,  H04L67/04 ,  H04L67/2828 ,  H04N21/23439 ,  H04N21/2381 ,  H04N21/2625 ,  H04N21/44209 ,  H04N21/631 ,  H04N21/6582

Abstract: There are provided a system, an apparatus, and a method for suppressing increase in an amount of distribution data when performing content distribution via a network, improving reliability of the data received by a receiver in the distribution through an unstable transmission path such as a wireless transmission path, enabling provision of the content with a stable quality, and realizing the provision of the content with an optimal quality for the reception environment of content receiver, while suppressing an increase in an amount of processing for improving reliability of the distribution data on both of reception side and a transmission side. A content distribution apparatus 101 includes first through Nth image encoded data transmitting units 105 to 107, and multiplexes a plurality of data in a predetermined layer in accordance with a scalable encoding system using a plurality of sessions or a same session, for transmission by providing a preset time difference for each of the data or interleaving the data. The content distribution apparatus 101 sets compression rates of second and subsequent data to be the same or higher than that of first data, suited to a state of the transmission path, thereby suppressing an increase in a band. A content receiving apparatus 111 includes first through Nth image encoded data receiving units 113 to 115, an encoded data reconstruction unit 116, and a decoder 117. The content receiving apparatus 111 selects encoded data based on the compression rate, for reconstruction, and decodes the reconstructed encoded data.

Abstract translation: 提供了一种用于在经由网络进行内容分发时抑制分发数据量的增加的系统，装置和方法，提高了通过诸如无线的不稳定传输路径的分发中的接收机接收的数据的可靠性 传输路径，能够以稳定的质量提供内容，并且为了提高内容接收机的接收环境的最佳质量，同时抑制用于提高分发数据的可靠性的处理量的增加 的接收侧和发送侧。 内容分发装置101包括第一至第N图像编码数据发送单元105至107，并且根据使用多个会话或相同会话的可伸缩编码系统复用预定层中的多个数据，以便通过提供 为每个数据预设时差或交织数据。 内容分发装置101将第二数据和后续数据的压缩率设置为与适合于传输路径的状态的第一数据相同或更高的压缩率，从而抑制频带的增加。 内容接收装置111包括第一至第N图像编码数据接收单元113至115，编码数据重构单元116和解码器117.内容接收装置111基于压缩率来选择编码数据进行重构，并对 重建编码数据。