利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.016 秒)

    Intra prediction system of video encoder and video decoder
    1.
    发明授权
    Intra prediction system of video encoder and video decoder 失效
    视频编码器和视频解码器的帧内预测系统

    公开(公告)号：US08199818B2

    公开(公告)日：2012-06-12

    申请号：US12054756

    申请日：2008-03-25

    申请人： Tomonobu Yoshino ,  Sei Naito ,  Atsushi Koike

    发明人： Tomonobu Yoshino ,  Sei Naito ,  Atsushi Koike

    IPC分类号： H04B1/66

    CPC分类号： H04N19/136 ,  H04N19/11 ,  H04N19/176 ,  H04N19/61

    摘要： There is provided an intra prediction system having high prediction performance and satisfactory encoding efficiency in a pattern image in which pixel value is periodically changed and a pattern image in which pixel value has a constant change tendency like gradation effect. A frequency component extraction unit allows a pixel value of an encoded MB to be made one-dimensional for one-dimensional orthogonal conversion. A frequency component-considering prediction value calculation unit receives, as inputs, a pixel value of an encoded adjacent MB and an alternating current frequency component output to create an orthogonal conversion coefficient. The orthogonal conversion coefficient then is subjected inverted orthogonal conversion (IDCT) to generate a prediction value p(i). A prediction direction determination unit selects and outputs a prediction value p′(i) in a prediction direction having the highest encoding efficiency among a conventional prediction value calculation unit and a prediction value calculation unit according to the present invention.

    摘要翻译： 提供一种在像素值周期性变化的图案图像中具有高预测性能和令人满意的编码效率的帧内预测系统以及其中像素值具有恒定变化趋势的图案图像，如灰度效果。 频率分量提取单元允许将编码的MB的像素值制成一维用于一维正交变换。 频率分量考虑预测值计算单元接收编码的相邻MB的像素值和输出的交流频率分量作为输入，以产生正交变换系数。 然后对正交变换系数进行反向正交变换（IDCT），生成预测值p（i）。 预测方向确定单元根据本发明在常规预测值计算单元和预测值计算单元中选择并输出具有最高编码效率的预测方向的预测值p'（i）。

    Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery
    2.
    发明申请
    Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery 有权
    用于同时OTDM解复用，电时钟恢复和光时钟生成以及光时钟恢复的装置

    公开(公告)号：US20060056854A1

    公开(公告)日：2006-03-16

    申请号：US11208582

    申请日：2005-08-23

    申请人： Zhaoyang Hu ,  Kohsuke Nishimura ,  Hsu-Feng Chou ,  Daniel Blumenthal ,  John Bowers ,  Ryo Inohara ,  Masashi Usami

    发明人： Zhaoyang Hu ,  Kohsuke Nishimura ,  Hsu-Feng Chou ,  Daniel Blumenthal ,  John Bowers ,  Ryo Inohara ,  Masashi Usami

    IPC分类号： H04B10/00

    CPC分类号： H04B10/61 ,  H04J14/08

    摘要： An apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery using a traveling-wave electroabsorption modulator. The apparatus includes a TW-EAM and a PLL coupled thereto. The TW-EAM includes a first, a second, a third, and a fourth. The first port is used for an optical input and the third port is used for optical output. The second port is coupled to an input, and the fourth port is coupled to an output, of the PLL. When the first port receives optical input, the second port produces a photocurrent to be applied to the PLL, and the fourth port receives a recovered clock produced by the PLL, and the third port produces demultiplexed data and an optical clock. Using the same configuration, the apparatus produces a recovered optical clock signal.

    摘要翻译： 用于同时OTDM解复用，电时钟恢复和光时钟生成的装置以及使用行波电吸收调制器的光时钟恢复。 该装置包括TW-EAM和耦合到其上的PLL。 TW-EAM包括第一，第二，第三和第四。 第一个端口用于光输入，第三个端口用于光输出。 第二端口耦合到输入，并且第四端口耦合到PLL的输出端。 当第一端口接收光输入时，第二端口产生要施加到PLL的光电流，并且第四端口接收由PLL产生的恢复时钟，并且第三端口产生解复用数据和光时钟。 使用相同的配置，该设备产生恢复的光时钟信号。

    Image segmentation apparatus
    4.
    发明申请
    Image segmentation apparatus 有权
    图像分割装置

    公开(公告)号：US20020041711A1

    公开(公告)日：2002-04-11

    申请号：US09933073

    申请日：2001-08-21

    申请人： KDDI R&D LABORATORIES, INC.

    发明人： Ryoichi Kawada ,  Atsushi Koike ,  Shuichi Matsumoto

    IPC分类号： G06K009/34 ,  G06K009/46 ,  G06K009/36

    CPC分类号： H04N19/85 ,  H04N19/537

    摘要： A shape entropy, a motion vector entropy, and a texture entropy of a certain area i of an input image are derived by a shape entropy calculation section, a motion vector entropy calculation section, and a texture entropy calculation section, respectively. Among them, the texture entropy is derived by taking an allowed value n of encoding degradation given according to a limit (encoding rate) of an entropy which can transmitted into consideration. Therefore, a generated entropy obtained by adding up the shape entropy, the motion vector entropy, and the texture entropy becomes a value according to the encoding rate. In such optimizing segmentation encoding as to minimize the generated entropy, therefore, it becomes possible to conduct segmentation according to the encoding rate. According to the present invention, there is provided an image segmentation apparatus capable of conducting such optimizing segmentation as to minimize the generated entropy while taking the limit (encoding rate) of the entropy which can be transmitted into consideration.

    摘要翻译： 输入图像的特定区域i的形状熵，运动矢量熵和纹理熵分别由形状熵计算部分，运动矢量熵计算部分和纹理熵计算部分导出。 其中，通过考虑根据可以传输的熵的限制（编码率）给出的编码劣化的允许值n来导出纹理熵。 因此，通过将形状熵，运动矢量熵和纹理熵相加而获得的生成熵变为根据编码率的值。 因此，在使生成的熵最小化的优化分割编码中，可以根据编码率进行分割。 根据本发明，提供了一种图像分割装置，其能够进行这样的优化分割，以使所产生的熵最小化，同时考虑可以传输的熵的极限（编码率）。

    Video encoder and its decoder
    5.
    发明授权
    Video encoder and its decoder 有权
    视频编码器及其解码器

    公开(公告)号：US09014268B2

    公开(公告)日：2015-04-21

    申请号：US12727278

    申请日：2010-03-19

    申请人： Sei Naito ,  Tomonobu Yoshino

    发明人： Sei Naito ,  Tomonobu Yoshino

    IPC分类号： H04N7/50 ,  H04N19/567 ,  H04N19/176 ,  H04N19/119 ,  H04N19/147 ,  H04N19/103 ,  H04N19/14 ,  H04N19/53

    CPC分类号： H04N19/567 ,  H04N19/103 ,  H04N19/119 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/53

    摘要： A video encoder according to the present invention improves coding efficiency of a super high definition video by setting an area of MB size and optimally determining size of the area. A locally decoded image (a) is subjected to frequency analysis in a frequency analyzing unit. Based on the result, an area setting unit sets a local area in a picture to which the maximum MB size is applied. An area boundary correcting unit corrects an area boundary in accordance with a representative motion characteristic, and an N-value calculating unit determines the maximum MB size (N×N) of each area based on a result of encoding a neighboring picture. The area setting and the N-value calculation are performed step by step.

    摘要翻译： 根据本发明的视频编码器通过设置MB大小的面积并且最佳地确定区域的大小来提高超高分辨率视频的编码效率。 在频率分析单元中对本地解码图像（a）进行频率分析。 基于该结果，区域设置单元设置应用了最大MB大小的图片中的局部区域。 区域边界校正单元根据代表运动特性校正区域边界，并且N值计算单元基于对相邻图像进行编码的结果来确定每个区域的最大MB大小（N×N）。 进行区域设定和N值运算。

    Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery
    8.
    发明申请
    Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery 审中-公开
    用于同时OTDM解复用，电时钟恢复和光时钟生成以及光时钟恢复的装置

    公开(公告)号：US20050018271A1

    公开(公告)日：2005-01-27

    申请号：US10800625

    申请日：2004-03-16

    申请人： Zhaoyang Hu ,  Kohsuke Nishimura ,  Hsu-Feng Chou ,  Daniel Blumenthal ,  John Bowers ,  Ryo Inohara ,  Masashi Usami

    发明人： Zhaoyang Hu ,  Kohsuke Nishimura ,  Hsu-Feng Chou ,  Daniel Blumenthal ,  John Bowers ,  Ryo Inohara ,  Masashi Usami

    IPC分类号： G02F1/025 ,  H04B10/148 ,  H04J14/08 ,  G02F1/03

    CPC分类号： H04B10/61 ,  H04J14/08

    摘要： An apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery using a traveling-wave electroabsorption modulator. The apparatus includes a TW-EAM and a PLL coupled thereto. The TW-EAM includes a first, a second, a third, and a fourth. The first port is used for an optical input and the third port is used for optical output. The second port is coupled to an input, and the fourth port is coupled to an output, of the PLL. When the first port receives optical input, the second port produces a photocurrent to be applied to the PLL, and the fourth port receives a recovered clock produced by the PLL, and the third port produces demultiplexed data and an optical clock. Using the same configuration, the apparatus produces a recovered optical clock signal.

    摘要翻译： 用于同时OTDM解复用，电时钟恢复和光时钟生成的装置以及使用行波电吸收调制器的光时钟恢复。 该装置包括TW-EAM和耦合到其上的PLL。 TW-EAM包括第一，第二，第三和第四。 第一个端口用于光输入，第三个端口用于光输出。 第二端口耦合到输入，并且第四端口耦合到PLL的输出端。 当第一端口接收光输入时，第二端口产生要施加到PLL的光电流，并且第四端口接收由PLL产生的恢复时钟，并且第三端口产生解复用数据和光时钟。 使用相同的配置，该设备产生恢复的光时钟信号。

    Communication characteristic measuring device adapted to wireless terminal
    9.
    发明授权
    Communication characteristic measuring device adapted to wireless terminal 失效
    适用于无线终端的通信特性测量装置

    公开(公告)号：US08391170B2

    公开(公告)日：2013-03-05

    申请号：US12645024

    申请日：2009-12-22

    申请人： Akira Yamaguchi ,  Kanshiro Kashiki ,  Takashi Fujimoto ,  Kazunori Takeuchi

    发明人： Akira Yamaguchi ,  Kanshiro Kashiki ,  Takashi Fujimoto ,  Kazunori Takeuchi

    IPC分类号： H04J1/16

    CPC分类号： H04L43/0852 ,  H04W24/08

    摘要： A cognitive terminal includes different types of radio modules suiting to different types radio media employed by a cognitive base station in the radio communication system. The radio module of the cognitive terminal counts the number of times it receives/transmits ACK/NACK in each unit time. A radio environment cognition unit of the cognitive terminal performs calculations using the count number(s) in consideration of the packet transmission time interval or the time required for repeating a single data packet, thus measuring characteristics of delay time variations in uplink/downlink communication with respect to each radio media. Thus, it is possible for the cognitive terminal to switch over radio media based on ACK/NACK in uplink/downlink communication.

    摘要翻译： 认知终端包括适用于无线电通信系统中认知基站采用的不同类型无线电媒体的不同类型的无线电模块。 认知终端的无线模块对每单位时间接收/发送ACK / NACK的次数进行计数。 认知终端的无线环境认知单元考虑到分组传输时间间隔或重复单个数据分组所需的时间，使用计数数进行计算，从而测量上行链路/下行链路通信中的延迟时间变化的特性 尊重每个无线电媒体。 因此，认知终端可以在上行链路/下行链路通信中基于ACK / NACK切换无线电媒体。

    Image encoding device
    10.
    发明授权
    Image encoding device 有权
    图像编码装置

    公开(公告)号：US08351721B2

    公开(公告)日：2013-01-08

    申请号：US12961974

    申请日：2010-12-07

    申请人： Haruhisa Katou ,  Sei Naitou

    发明人： Haruhisa Katou ,  Sei Naitou

    IPC分类号： G06K9/36 ,  G06K9/46

    CPC分类号： H04N19/186 ,  H04N19/105 ,  H04N19/11 ,  H04N19/136 ,  H04N19/147 ,  H04N19/176 ,  H04N19/61

    摘要： The image encoding device includes: signal-to-signal predicting unit 8 for separating an intra-signal prediction residual signal obtained by performing difference processing between an input image signal and an intra-signal prediction signal into a reference signal and a signal to be predicted and calculating signal-to-signal prediction information used for performing signal-to-signal prediction on each pixel of the signal to be predicted corresponding to each pixel of the reference signal; and signal-to-signal compensating unit 9 for obtaining a signal-to-signal prediction signal of the region to be encoded from a decoded intra-signal prediction residual signal and the signal-to-signal prediction information from the signal-to-signal predicting unit, wherein each pixel of the signal to be predicted is encoded by performing orthogonal conversion, quantization, and encoding on the signal-to-signal prediction residual signal obtained by performing the difference processing between the intra-signal prediction residual signal and the signal-to-signal prediction signal.

    摘要翻译： 图像编码装置包括：信号到信号预测单元8，用于将通过在输入图像信号和帧内信号预测信号之间进行差分处理而获得的信号内预测残差信号分离成参考信号和要预测的信号 以及计算用于对与所述参考信号的每个像素相对应的将被预测的信号的每个像素执行信号到信号预测的信号到信号预测信息; 信号到信号补偿单元9，用于从解码的帧内信号预测残差信号和从信号到信号的信号到信号预测信息中获得要编码的区域的信号到信号预测信号 预测单元，其中通过对通过执行帧内信号预测残差信号和信号之间的差分处理获得的信号到信号预测残差信号执行正交转换，量化和编码来对要预测的信号的每个像素进行编码 信号预测信号。