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    • 1. 发明授权
    • PVR-support video decoding system
    • PVR支持视频解码系统
    • US08249166B2
    • 2012-08-21
    • US12010381
    • 2008-01-24
    • Eung Tae Kim
    • Eung Tae Kim
    • H04N7/12
    • H04N5/781G11B27/034G11B27/105G11B27/28G11B2220/20H04N5/76H04N5/765H04N5/783H04N7/0122H04N9/8042H04N9/8227H04N19/61H04N19/89H04N21/4147H04N21/4263H04N21/434H04N21/438
    • An MPEG video decoding system with a PVR (Personal Video Recorder) function is disclosed. By applying the PVR function to an MPEG-2 decoder chip, which is the standard recommendation of the digital video transmission field, diverse high-performance PVR services such as video storage and search using an HDD application in the video decoder chip can be used, and two HD-class displays can simultaneously be supported. Also, the features of the video TS bitstream stored through the video decoding chip having a proposed PVR engine can be extracted in real time, and the playback or trick play of the stored video contents can be diversely and easily performed. According to the PVR-support video decoding system, an improved storage and search function of a video bitstream, and diverse video services can be provided, and the added value of the digital video recorder can be heightened.
    • 公开了具有PVR(个人录像机)功能的MPEG视频解码系统。 通过将PVR功能应用于数字视频传输领域的标准推荐的MPEG-2解码器芯片,可以使用视频解码芯片中的HDD应用的视频存储和搜索等多种高性能PVR服务, 并可同时支持两个HD级显示器。 此外,可以实时提取通过具有所提出的PVR引擎的视频解码芯片存储的视频TS比特流的特征,并且可以不同地容易地执行所存储的视频内容的回放或特技播放。 根据PVR支持视频解码系统,可以提供视频比特流的改进的存储和搜索功能以及各种视频服务,并且可以提高数字录像机的附加值。
    • 2. 发明授权
    • MPEG video decoding system
    • MPEG视频解码系统
    • US07460600B2
    • 2008-12-02
    • US10725545
    • 2003-12-03
    • Byeong Chan SeoEung Tae Kim
    • Byeong Chan SeoEung Tae Kim
    • H04N7/18
    • H04N19/44H04N19/12H04N19/162
    • An MPEG video decoding system including: a buffer for storing an MPEG-formatted or a DV-formatted video signal; a VLD/IQ unit for performing a variable length decoding and an inverse quantization of the video signal; an IDCT device for selectively performing an 8×8 IDCT and a 4×8 IDCT according to the format of the inversely quantized signal; an adder for bypassing and storing the output signal of the IDCT unit into an external memory if the output signal of the IDCT unit is an MPEG-formatted I-picture or a DV format, and for adding the IDCT-ed signal and a motion compensated signal if the output signal of the IDCT device is an MPEG-formatted P-picture or B-picture; and a motion compensator for performing a motion compensation outputting the motion compensated signal to the adder, if the output signal of the IDCT device is the MPEG-formatted P-picture or the MPEG-formatted B-picture.
    • 一种MPEG视频解码系统,包括:用于存储MPEG格式或DV格式的视频信号的缓冲器; 用于执行可变长度解码和视频信号的逆量化的VLD / IQ单元; IDCT装置,用于根据反量化信号的格式选择性地执行8×8 IDCT和4×8 IDCT; 如果IDCT单元的输出信号是MPEG格式的I图像或DV格式,则用于将IDCT单元的输出信号旁路和存储到外部存储器中的加法器,并且用于将IDCT编码信号和运动补偿 信号,如果IDCT设备的输出信号是MPEG格式的P图像或B图像; 以及如果IDCT设备的输出信号是MPEG格式的P图像或MPEG格式的B图像,则用于执行将运动补偿信号输出到加法器的运动补偿器。
    • 3. 发明申请
    • PVR-support video decoding system
    • PVR支持视频解码系统
    • US20080181301A1
    • 2008-07-31
    • US12076924
    • 2008-03-25
    • Eung Tae Kim
    • Eung Tae Kim
    • H04N7/12
    • H04N5/781G11B27/034G11B27/105G11B27/28G11B2220/20H04N5/76H04N5/765H04N5/783H04N7/0122H04N9/8042H04N9/8227H04N19/61H04N19/89H04N21/4147H04N21/4263H04N21/434H04N21/438
    • A system and method for video decoding, including decoding video data from an input Transport Stream (TS) bitstream, variable-length-decoding the decoded video data, and restoring pixel values of an original picture through an Inverse Quantization process, an Inverse Discrete Cosine Transform process, and an Motion Compensation process from the variable-length-decoded video data; analyzing characteristics of video data based on error information, header information, and macroblock information extracted from the decoded video data to generate analysis information and generating thumbnail image; storing the generated thumbnail image; generating meta data information based on the generated analysis information and controlling to store the generated meta data information; controlling to search the stored input TS bitstreams in the storage medium according to the stored meta data information; and controlling to store the generated thumbnail image, read the stored image, and display an Electronic Program Guide with the read thumbnail image.
    • 一种用于视频解码的系统和方法,包括从输入传输流(TS)比特流解码视频数据,对经解码的视频数据进行可变长度解码,以及通过反量化处理恢复原始图像的像素值,反向离散余弦 变换处理和可变长度解码视频数据的运动补偿处理; 基于从解码的视频数据提取的误差信息,头信息和宏块信息来分析视频数据的特征,以产生分析信息并生成缩略图; 存储所生成的缩略图图像; 基于所生成的分析信息生成元数据信息,并控制存储生成的元数据信息; 控制根据存储的元数据信息来搜索存储介质中存储的输入TS比特流; 并控制存储所生成的缩略图,读取所存储的图像,并用读取的缩略图显示电子节目指南。
    • 5. 发明授权
    • Fast encoding method and system using adaptive intra prediction
    • 快速编码方法和系统采用自适应帧内预测
    • US08331449B2
    • 2012-12-11
    • US12262006
    • 2008-10-30
    • Eung Tae KimKi-Young Jang
    • Eung Tae KimKi-Young Jang
    • H04N7/12H04N11/02H04N11/04
    • H04N19/109H04N19/11H04N19/176H04N19/593H04N19/61
    • Fast encoding method and system are provided which can transmit video data in real time using adaptive intra prediction in accordance with the H.264/AVC (Advanced Video Codec) standard so as to efficiently provide security-related images or multimedia images in various network environments with high quality. An intra prediction method of compressing and encoding an image includes the steps of: comparing an SAD value C calculated from macro block data of a present frame and a previous frame with a reference value K to determine a prediction method; and selectively performing on input macro block data a first method of determining a best mode and a block size by prediction in a plurality of prediction modes based on spatial directivity and generating prediction data and a second method of generating prediction data using the best mode and the block size used in the previous frame, depending on the determined prediction method.
    • 提供了可以根据H.264 / AVC(高级视频编解码器)标准使用自适应帧内预测实时传输视频数据的快速编码方法和系统,以便在各种网络环境中高效地提供与安全相关的图像或多媒体图像 具有高品质。 压缩和编码图像的帧内预测方法包括以下步骤:将从当前帧的宏块数据和前一帧计算的SAD值C与参考值K进行比较,以确定预测方法; 以及通过基于空间方向性的多个预测模式中的预测来确定最佳模式和块大小的第一种方法和产生预测数据,以及使用最佳模式生成预测数据的第二种方法,选择性地执行输入宏块数据, 取决于所确定的预测方法在前一帧中使用的块大小。
    • 6. 发明申请
    • FAST ENCODING METHOD AND SYSTEM USING ADAPTIVE INTRA PREDICTION
    • 使用自适应预测的快速编码方法和系统
    • US20090296812A1
    • 2009-12-03
    • US12262006
    • 2008-10-30
    • Eung Tae KimKi-Young Jang
    • Eung Tae KimKi-Young Jang
    • H04N7/26
    • H04N19/109H04N19/11H04N19/176H04N19/593H04N19/61
    • Fast encoding method and system are provided which can transmit video data in real time using adaptive intra prediction in accordance with the H.264/AVC (Advanced Video Codec) standard so as to efficiently provide security-related images or multimedia images in various network environments with high quality. An intra prediction method of compressing and encoding an image includes the steps of: comparing an SAD value C calculated from macro block data of a present frame and a previous frame with a reference value K to determine a prediction method; and selectively performing on input macro block data a first method of determining a best mode and a block size by prediction in a plurality of prediction modes based on spatial directivity and generating prediction data and a second method of generating prediction data using the best mode and the block size used in the previous frame, depending on the determined prediction method.
    • 提供了可以根据H.264 / AVC(高级视频编解码器)标准使用自适应帧内预测实时传输视频数据的快速编码方法和系统,以便在各种网络环境中高效地提供与安全相关的图像或多媒体图像 具有高品质。 压缩和编码图像的帧内预测方法包括以下步骤:将从当前帧的宏块数据和前一帧计算的SAD值C与参考值K进行比较,以确定预测方法; 以及通过基于空间方向性的多个预测模式中的预测来确定最佳模式和块大小的第一种方法以及产生预测数据,以及使用最佳模式产生预测数据的第二种方法来选择性地执行输入宏块数据, 取决于所确定的预测方法在前一帧中使用的块大小。
    • 7. 发明授权
    • Video transcoding apparatus
    • 视频转码设备
    • US07266148B2
    • 2007-09-04
    • US10034380
    • 2002-01-03
    • Eung Tae Kim
    • Eung Tae Kim
    • H04B1/66
    • H04N19/40
    • Disclosed is a video transcoding apparatus converting a specific bit rate of an MPEG (moving pictures experts group) bit stream into a different rate thereof for transportation. The present invention includes a video pre-processing unit having a predetermined matrix structure and down-sampling a macro block decoded by the video decoder by transforming the macro block into a corresponding picture structure to the compressed video bit stream, a transcoding parameter control unit detecting information about a picture from a previous bit stream variable-length-decoded by the video decoder and setting up an encoding mode for a transcoding in accordance with the detected information, etc. Therefore, the present invention does not need the motion estimation unit of encoder and reduce the complexity of the bit allocation unit. When changing HD-rated MPEG sequence over 10 Mbps into NTSC-rated MPEG sequence below 6 Mbps, the present invention reduces calculation time and complexity of hardware.
    • 公开了将MPEG(运动图像专家组)比特流的特定比特率转换为不同速率的视频转码装置,用于传送。 本发明包括具有预定矩阵结构的视频预处理单元,并且通过将该宏块变换为压缩视频位流的对应图像结构,对由视频解码器解码的宏块进行下采样,代码转换参数控制单元检测 关于由视频解码器可变长度解码的先前比特流的图像的信息,并且根据检测到的信息设置用于代码转换的编码模式等。因此,本发明不需要编码器的运动估计单元 并降低位分配单元的复杂度。 当将超过10Mbps的HD级MPEG序列改为低于6Mbps的NTSC级MPEG序列时,本发明减少了硬件的计算时间和复杂度。
    • 8. 发明授权
    • Video decoder with down conversion function and method for decoding video signal
    • 视频解码器具有下转换功能和解码视频信号的方法
    • US06823014B2
    • 2004-11-23
    • US09911607
    • 2001-07-25
    • Eung Tae Kim
    • Eung Tae Kim
    • H04N712
    • H04N19/59H04N19/105H04N19/112H04N19/137H04N19/428H04N19/44H04N19/46H04N19/523H04N19/61
    • A video decoder decodes a video signal based on a down conversion function. The video decoder includes a variable length decoder which analyzes a received compressed video stream and extracts motion signals. The analyzed bitstream is converted into a macro block through an inverse quantizer and inverse discrete cosine transform unit in succession, and a motion compensator compensates up-sampled data using the extracted motion signals. Data from the IDCT and data from the motion compensator are added, down-sampled by an adaptive down sampler, and stored in an external memory. For motion compensation, the adaptive up-sampler up samples the data down-sampled at the adaptive down sampler, and the result is provided to the motion compensator.
    • 视频解码器基于下变频功能解码视频信号。 视频解码器包括可变长度解码器,其分析所接收的压缩视频流并提取运动信号。 所分析的比特流被连续地通过逆量化器和逆离散余弦变换单元转换成宏块,并且运动补偿器使用提取的运动信号来补偿上采样数据。 来自IDCT的数据和来自运动补偿器的数据被自适应下采样器相加,下采样并存储在外部存储器中。 对于运动补偿,自适应上采样器采样自适应下采样器下采样的数据,并将结果提供给运动补偿器。
    • 10. 发明授权
    • Personal video recorder and control method thereof for combining first and second video streams
    • 个人录像机及其控制方法,用于组合第一和第二视频流
    • US08498516B2
    • 2013-07-30
    • US10893979
    • 2004-07-20
    • Eung Tae Kim
    • Eung Tae Kim
    • H04N5/92H04N5/93H04N5/76
    • H04N21/4147G11B27/034G11B27/105G11B27/28G11B27/329G11B2220/20H04N5/76
    • The present invention provides a PVR system and control method thereof, by which a user is facilitated to synthesize and combine a multitude of videos or broadcast programs. The present invention includes a decoder selecting at least one of a plurality of reception video streams to decode the selected video stream, a PVR engine reading a first index file including video features and addresses of previously stored video streams, the PVR engine generating a second index file including video features and addresses of the selected video stream, the PVR engine links the first and second index files to each other to combine the previously stored video stream and the selected video stream, and a storage means for storing the video streams and the index files corresponding to the video streams.
    • 本发明提供一种PVR系统及其控制方法,通过该方法,用户能够合成和组合多个视频或广播节目。 本发明包括:解码器,选择多个接收视频流中的至少一个来解码所选择的视频流; PVR引擎,读取包括视频特征的第一索引文件和先前存储的视频流的地址,所述PVR引擎生成第二索引 文件包括所选择的视频流的视频特征和地址,PVR引擎将第一和第二索引文件彼此链接以组合先前存储的视频流和所选择的视频流,以及存储装置,用于存储视频流和索引 对应于视频流的文件。