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    • 4. 发明申请
    • APPARATUS AND METHOD FOR ENCODING/DECODING A VIDEO SIGNAL
    • 编码/解码视频信号的装置和方法
    • US20110228854A1
    • 2011-09-22
    • US13130905
    • 2009-08-17
    • Il-Hong ShinJung-Won KangJeong-Ju YooJin-Woo Hong
    • Il-Hong ShinJung-Won KangJeong-Ju YooJin-Woo Hong
    • H04N7/26
    • H04N19/573H04N19/105H04N19/117H04N19/176H04N19/61
    • Provided is an apparatus and method for encoding and decoding a video signal. A video signal encoding apparatus may include: a reference image storage unit to store a reference image; a template motion estimation unit to estimate a motion between an input image and the reference image using a template, and to generate motion estimation information; an adaptive motion compensation unit to generate a predicted image using the motion estimation information and the reference image, to calculate a filter coefficient with respect to the predicted image using the template, and to filter the predicted image using the filter coefficient; a transformation and quantization unit to perform integer-transformation and quantization for a differential image that is a difference between the input image and the filtered predicted image; and an entropy encoding unit to entropy encode the quantized differential image and to output an image stream.
    • 提供了一种用于对视频信号进行编码和解码的装置和方法。 视频信号编码装置可以包括:参考图像存储单元,用于存储参考图像; 模板运动估计单元,用于使用模板来估计输入图像和参考图像之间的运动,并且生成运动估计信息; 自适应运动补偿单元,用于使用运动估计信息和参考图像生成预测图像,以使用所述模板来计算相对于所述预测图像的滤波器系数,并使用所述滤波器系数对所述预测图像进行滤波; 变换和量化单元,用于对作为输入图像和滤波后的预测图像之间的差的差分图像进行整数变换和量化; 以及熵编码单元,对所述量化的差分图像进行熵编码,并输出图像流。
    • 8. 发明授权
    • WDM/SCM-PON and media access control method for asymmetric packet communication in the same
    • WDM / SCM-PON和媒体访问控制方法在非对称分组通信中相同
    • US07330655B2
    • 2008-02-12
    • US10912340
    • 2004-08-04
    • Tae Yeon KimJeong Ju YooByoung Whi Kim
    • Tae Yeon KimJeong Ju YooByoung Whi Kim
    • H04J14/02
    • H04J14/0282H04J14/0227H04J14/0241H04J14/0298H04Q11/0067H04Q2011/0016H04Q2011/0086
    • The present invention relates to a WDM/SCM-PON and a media access control method for asymmetric packet communication in the same. In the WDM/SCM-PON, each SCM channel is classified and used as a link by adopting an SCM technique of subdividing a wavelength band of up/downstream data links between an OLT and ONTs into frequency bands, and the ONTs are formed so that a certain SCM channel is independently distributed not fixedly assigned. Accordingly, an inventory problem, which can be generated in WDM/SCM, is prevented before happens, asymmetric dynamic band allocation is performed, and asymmetric service of up/downstream transmission is supported. As a result, a band required for next generation service is dynamically provided, optical interference effect is minimized, and Ethernet compatibility is provided so that Ethernet service suitable for providing IP service can be accommodated.
    • 本发明涉及一种WDM / SCM-PON及其中的非对称分组通信的媒体接入控制方法。 在WDM / SCM-PON中,通过采用将OLT和ONT之间的上下行数据链路的波段划分成频带的SCM技术将每个SCM信道分类并用作链路,并且形成ONT,使得 某个SCM信道是独立分配的,没有固定分配。 因此,在发生之前可以防止在WDM / SCM中产生的库存问题,执行非对称动态频带分配,支持上下行传输的非对称业务。 结果,动态地提供了下一代业务所需的频带,减少了光干扰效应,提供了以太网兼容性,从而可以适应提供IP业务的以太网业务。