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    • 1. 发明授权
    • Motion estimation apparatus and method for moving picture coding
    • 运动估计装置及运动图像编码方法
    • US08139643B2
    • 2012-03-20
    • US12191733
    • 2008-08-14
    • Jin Ho HanSuk Ho LeeSeong Mo ParkNak Woong Eum
    • Jin Ho HanSuk Ho LeeSeong Mo ParkNak Woong Eum
    • H04B1/66
    • H04N19/523H04N19/43
    • Provided is a motion estimation apparatus for moving picture coding. The apparatus includes a 1-pel buffer for storing 1-pel unit pixels using luminance signals of a reference frame which correspond to macroblocks of a current frame, a 1-pel estimator for calculating 1-pel unit motion vectors and minimum costs in correspondence to the macroblocks of the current frame and the pixels stored in the 1-pel buffer, a ½-pel interpolator for performing ½-pel unit interpolation using the pixels stored in the 1-pel buffer, a ½-pel buffer for storing the ½-pel unit interpolated pixels, a ½-pel estimator for calculating ½-pel unit motion vectors and minimum costs in correspondence to the pixels stored in the ½-pel buffer, the values calculated by the 1-pel estimator, and the macroblocks of the current frame, a ¼-pel interpolator for performing ¼-pel unit interpolation using the pixels stored in the ½-pel and 1-pel buffers, a ¼-pel buffer for storing the ¼-pel unit interpolated pixels, and a ¼-pel estimator for calculating ¼-pel unit motion vectors and minimum costs in correspondence to the pixels stored in the ¼-pel buffer, the values calculated by the ½-pel estimator, and the macroblocks of the current frame.
    • 提供了一种用于运动图像编码的运动估计装置。 该装置包括:1个像素缓冲器,用于使用与当前帧的宏块相对应的参考帧的亮度信号来存储1个像素单位像素; 1像素估计器,用于计算1像素单位运动矢量,并对应于最小成本 当前帧的宏块和存储在1-像素缓冲器中的像素,1/2像素内插器,用于使用存储在1-像素缓冲器中的像素进行1/2像素单位内插;½像素缓冲器,用于存储1/2像素缓冲器, 像素单位内插像素,用于计算1/2像素单位运动矢量的1/2像素估计器和对应于存储在1/2像素缓冲器中的像素的最小成本,由1-像素估计器计算的值和当前的宏块 帧,¼贝尔内插器,用于使用存储在1/2贝尔和1贝尔缓冲器中的像素执行1/4贝尔单位内插,用于存储1/4倍率单位内插像素的1/4贝尔缓冲器,以及1/4贝尔估计器 用于计算¼像素单位运动矢量 对应于存储在1/4贝尔缓冲器中的像素的最小成本,由1/2贝尔估计器计算的值和当前帧的宏块。
    • 2. 发明申请
    • VIDEO ENCODING APPARATUS AND METHOD USING PIPELINE TECHNIQUE WITH VARIABLE TIME SLOT
    • 视频编码设备和使用可变时隙的管道技术的方法
    • US20090103625A1
    • 2009-04-23
    • US12252734
    • 2008-10-16
    • Suk Ho LeeKyoung Seon ShinJin Ho HanSeong Mo ParkNak Woong Eum
    • Suk Ho LeeKyoung Seon ShinJin Ho HanSeong Mo ParkNak Woong Eum
    • H04N7/26
    • H04N19/436
    • A video encoding apparatus and method using a pipeline technique with a variable time slot are provided. More particularly, a video encoding apparatus and method capable of shortening a video encoding time by variably adjusting lengths of time slots when an H.264 video encoding process is performed in a pipeline structure are provided. The video encoding apparatus includes a plurality of functional blocks that perform video encoding steps based on an H.264 standard for macroblocks configuring input digital video signals in a pipeline structure, and a controller that controls lengths of time slots configuring the pipeline structure based on done signals received from the plurality of functional blocks. Lengths of time slots can be adjusted according to operation times of video encoding steps using done signals generated from functional blocks, thereby preventing unnecessary power consumption and delays when using a fixed-length time slot.
    • 提供了使用具有可变时隙的流水线技术的视频编码装置和方法。 更具体地说,提供了一种视频编码装置和方法,其能够在流水线结构中执行H.264视频编码处理时,通过可变地调整时隙的长度来缩短视频编码时间。 视频编码装置包括:多个功能块,其基于用于在流水线结构中配置输入数字视频信号的宏块的H.264标准执行视频编码步骤;以及控制器,其基于完成来控制配置流水线结构的时隙的长度 从多个功能块接收的信号。 可以根据从功能块产生的完成信号的视频编码步骤的操作时间来调整时隙长度,从而在使用固定长度的时隙时防止不必要的功耗和延迟。
    • 3. 发明申请
    • MOTION ESTIMATION APPARATUS AND METHOD FOR MOVING PICTURE CODING
    • 运动估计装置和移动图像编码的方法
    • US20090154564A1
    • 2009-06-18
    • US12191733
    • 2008-08-14
    • Jin Ho HANSuk Ho LeeSeong Mo ParkNak Woong Eum
    • Jin Ho HANSuk Ho LeeSeong Mo ParkNak Woong Eum
    • H04N7/26
    • H04N19/523H04N19/43
    • Provided is a motion estimation apparatus for moving picture coding. The apparatus includes a 1-pel buffer for storing 1-pel unit pixels using luminance signals of a reference frame which correspond to macroblocks of a current frame, a 1-pel estimator for calculating 1-pel unit motion vectors and minimum costs in correspondence to the macroblocks of the current frame and the pixels stored in the 1-pel buffer, a ½-pel interpolator for performing ½-pel unit interpolation using the pixels stored in the 1-pel buffer, a ½-pel buffer for storing the ½-pel unit interpolated pixels, a ½-pel estimator for calculating ½-pel unit motion vectors and minimum costs in correspondence to the pixels stored in the ½-pel buffer, the values calculated by the 1-pel estimator, and the macroblocks of the current frame, a ¼-pel interpolator for performing ¼-pel unit interpolation using the pixels stored in the ½-pel and 1-pel buffers, a ¼-pel buffer for storing the ¼-pel unit interpolated pixels, and a ¼-pel estimator for calculating ¼-pel unit motion vectors and minimum costs in correspondence to the pixels stored in the ¼-pel buffer, the values calculated by the ½-pel estimator, and the macroblocks of the current frame.
    • 提供了一种用于运动图像编码的运动估计装置。 该装置包括:1个像素缓冲器,用于使用与当前帧的宏块相对应的参考帧的亮度信号来存储1个像素单位像素; 1像素估计器,用于计算1像素单位运动矢量,并对应于最小成本 当前帧的宏块和存储在1-像素缓冲器中的像素,1/2像素内插器,用于使用存储在1-像素缓冲器中的像素进行1/2像素单位内插;½像素缓冲器,用于存储1/2像素缓冲器, 像素单位内插像素,用于计算1/2像素单位运动矢量的1/2像素估计器和对应于存储在1/2像素缓冲器中的像素的最小成本,由1-像素估计器计算的值和当前的宏块 帧,¼贝尔内插器,用于使用存储在1/2贝尔和1贝尔缓冲器中的像素执行1/4贝尔单位内插,用于存储1/4贝尔单位内插像素的1/4贝尔缓冲器,以及1/4贝尔估计器 用于计算¼像素单位运动矢量 对应于存储在1/4贝尔缓冲器中的像素的最小成本,由1/2贝尔估计器计算的值和当前帧的宏块。
    • 5. 发明授权
    • Adaptive motion search range determining apparatus and method
    • 自适应运动搜索范围确定装置和方法
    • US08532409B2
    • 2013-09-10
    • US13301093
    • 2011-11-21
    • Suk Ho LeeSeong Mo ParkNak Woong EumHee-Bum Jung
    • Suk Ho LeeSeong Mo ParkNak Woong EumHee-Bum Jung
    • H04N7/50
    • H04N19/57
    • Provided is an adaptive motion search range determining apparatus and method for encoding UHD-class high-resolution images. The adaptive motion search range determining apparatus includes an MVD average/standard deviation calculation unit calculating an value average and a standard deviation of MVDs of neighboring macroblocks of a current macroblock, and a motion search range determination unit determining a motion search range of the current macroblock using the value average and the standard deviation. According to the adaptive motion search range determining apparatus, it is possible to enable each macroblock to have an adaptive search range by variably adjusting a motion vector search range of a current macroblock with reference to motion vectors of neighboring macroblocks of the current macroblock.
    • 提供了一种用于对UHD级高分辨率图像进行编码的自适应运动搜索范围确定装置和方法。 自适应运动搜索范围确定装置包括:MVD平均/标准偏差计算单元,用于计算当前宏块的相邻宏块的MVD的值平均值和标准偏差;以及运动搜索范围确定单元,确定当前宏块的运动搜索范围 使用值平均值和标准偏差。 根据自适应运动搜索范围确定装置,可以参考当前宏块的相邻宏块的运动矢量,通过可变地调整当前宏块的运动矢量搜索范围,使每个宏块具有自适应搜索范围。
    • 6. 发明授权
    • High-speed motion estimation apparatus and method
    • 高速运动估计装置及方法
    • US08451901B2
    • 2013-05-28
    • US12495626
    • 2009-06-30
    • Suk Ho LeeSeong Mo ParkSang Heon LeeNak Woong Eum
    • Suk Ho LeeSeong Mo ParkSang Heon LeeNak Woong Eum
    • H04N7/12H04N19/00509
    • H04N19/00587H04N19/433H04N19/51H04N19/523
    • A high-speed motion estimation apparatus includes a current region memory, an integer-times motion estimation unit, and a decimal-times motion estimation unit. The current region memory receives pixel data of a current region from an external frame memory to store the pixel data. The integer-times motion estimation unit stores pixel data of an estimation region which are read from the frame memory, and predicts an integer-times motion vector by using the pixel data of the current region and the pixel data of the estimation region. The decimal-times motion estimation unit reads the pixel data of the estimation region, and predicts a decimal-times motion vector by using the read pixel data and the predicted integer-times motion vector.
    • 高速运动估计装置包括当前区域存储器,整数运动估计单元和十进制运动估计单元。 当前区域存储器从外部帧存储器接收当前区域的像素数据以存储像素数据。 整数运动估计单元存储从帧存储器读取的估计区域的像素数据,并且通过使用当前区域的像素数据和估计区域的像素数据来预测整数倍运动矢量。 十进制运动估计单元读取估计区域的像素数据,并且通过使用读取的像素数据和预测的整数倍运动矢量来预测十进制运动矢量。
    • 7. 发明授权
    • Inverse modified discrete cosine transform (IMDCT) co-processor and audio decoder having the same
    • 协处理器和音频解码器的逆修正离散余弦变换(IMDCT)具有相同的功能
    • US07627623B2
    • 2009-12-01
    • US11432100
    • 2006-05-11
    • Suk Ho LeeNak Woong EumHee Bum Jung
    • Suk Ho LeeNak Woong EumHee Bum Jung
    • G06F17/14
    • G06F17/147G10L19/16
    • Provided are an IMDCT co-processor and an audio decoder having the same. The IMDCT co-processor includes: an input buffer for storing an input inverse-quantized frequency spectrum sample value; an I/Q separator for dividing the sample value stored in the input buffer into real data I and imaginary data Q; a first operation unit for performing complex-multiplication on the data divided by the I/Q separator and a given twiddle factor; an IFFT unit for performing an inverse fast Fourier transform on the operation result value of the first operation unit; a second operation unit for performing complex-multiplication on the result value from the IFFT unit and a given twiddle factor; a deinterleaver for receiving the operation result value from the second operation unit to arrange data and performing inverse-mapping on a positive value (+) and a negative value (−) of a certain portion of the data to each other to output a final IMDCT time sample value; and a control register for selecting the input inverse-quantized frequency spectrum sample value according to a given window sequence value to determine the final IMDCT time sample value.
    • 提供了一种IMDCT协处理器和具有其的音频解码器。 IMDCT协处理器包括:输入缓冲器,用于存储输入的反量化频谱样本值; I / Q分离器,用于将存储在输入缓冲器中的采样值分成实数数据I和虚数据Q; 第一操作单元,用于对由I / Q分离器划分的数据和给定的旋转因子进行复数乘法; IFFT单元,用于对第一操作单元的操作结果值进行快速傅立叶逆变换; 第二操作单元,用于对来自IFFT单元的结果值和给定的旋转因子进行复数乘法; 去交织器,用于从第二操作单元接收操作结果值以排列数据并且对数据的某一部分的正值(+)和负值( - )进行反向映射,以输出最终的IMDCT 时间样本值; 以及控制寄存器,用于根据给定的窗口序列值选择输入的反量化频谱采样值,以确定最终的IMDCT时间采样值。
    • 8. 发明授权
    • Method and apparatus for data transmission between processors using memory remapping
    • 使用存储器重映射的处理器之间的数据传输的方法和装置
    • US08464006B2
    • 2013-06-11
    • US12027364
    • 2008-02-07
    • Young-Su KwonHyuk KimYoung-Seok BaekSuk Ho LeeBon Tae KooNak Woong Eum
    • Young-Su KwonHyuk KimYoung-Seok BaekSuk Ho LeeBon Tae KooNak Woong Eum
    • G06F13/00G06F13/28
    • G06F12/1072
    • Provided are a method and apparatus for efficiently transferring a massive amount of multimedia data between two processors. The apparatus includes a first local switch, which connects a virtual page of a first processor element to a shared memory page, a second local switch, which connects a virtual page of a second processor element to the shared memory page, a shared page switch, which connects a predetermined shared memory page of a shared physical memory to the first or second local switch, and a switch manager, which remaps a certain shared memory page of the shared physical memory that stores data of a task performed by the first processor element to the virtual page of the second processor element. Accordingly, since memory remapping is used, the massive amount of multimedia data can be transmitted by changing a method of mapping a memory, unlike a case when multimedia data is transmitted by using a memory bus.
    • 提供了一种用于在两个处理器之间有效地传送大量多媒体数据的方法和装置。 该设备包括将第一处理器元件的虚拟页面连接到共享存储器页面的第一本地开关,将第二处理器元件的虚拟页面连接到共享存储器页面的第二本地开关,共享页面开关, 其将共享物理存储器的预定共享存储器页面连接到第一或第二本地交换机,以及交换机管理器,其将存储由第一处理器元件执行的任务的数据的共享物理存储器的某个共享存储器页重新映射到 第二处理器元件的虚拟页面。 因此,由于使用存储器重映射,与通过使用存储器总线发送多媒体数据的情况不同,可以通过改变映射存储器的方法来发送大量的多媒体数据。
    • 9. 发明申请
    • Inverse modified discrete cosine transform (IMDCT) co-processor and audio decoder having the same
    • 协处理器和音频解码器的逆修正离散余弦变换(IMDCT)具有相同的功能
    • US20070050440A1
    • 2007-03-01
    • US11432100
    • 2006-05-11
    • Suk Ho LeeNak Woong EumHee Bum Jung
    • Suk Ho LeeNak Woong EumHee Bum Jung
    • G06F17/14
    • G06F17/147G10L19/16
    • Provided are an IMDCT co-processor and an audio decoder having the same. The IMDCT co-processor includes: an input buffer for storing an input inverse-quantized frequency spectrum sample value; an I/Q separator for dividing the sample value stored in the input buffer into real data I and imaginary data Q; a first operation unit for performing complex-multiplication on the data divided by the I/Q separator and a given twiddle factor; an IFFT unit for performing an inverse fast Fourier transform on the operation result value of the first operation unit; a second operation unit for performing complex-multiplication on the result value from the IFFT unit and a given twiddle factor; a deinterleaver for receiving the operation result value from the second operation unit to arrange data and performing inverse-mapping on a positive value (+) and a negative value (−) of a certain portion of the data to each other to output a final IMDCT time sample value; and a control register for selecting the input inverse-quantized frequency spectrum sample value according to a given window sequence value to determine the final IMDCT time sample value.
    • 提供了一种IMDCT协处理器和具有其的音频解码器。 IMDCT协处理器包括:输入缓冲器,用于存储输入的反量化频谱样本值; I / Q分离器,用于将存储在输入缓冲器中的采样值分成实数数据I和虚数据Q; 第一操作单元,用于对由I / Q分离器划分的数据和给定的旋转因子进行复数乘法; IFFT单元,用于对第一操作单元的操作结果值进行快速傅立叶逆变换; 第二操作单元,用于对来自IFFT单元的结果值和给定的旋转因子进行复数乘法; 去交织器,用于从第二操作单元接收操作结果值以排列数据并且对数据的某一部分的正值(+)和负值( - )进行反向映射,以输出最终的IMDCT 时间样本值; 以及控制寄存器,用于根据给定的窗口序列值选择输入的反量化频谱采样值,以确定最终的IMDCT时间采样值。