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    • 14. 发明申请
    • MOTION ESTIMATION APPARATUS AND METHOD
    • 运动估计装置和方法
    • US20120163461A1
    • 2012-06-28
    • US13297291
    • 2011-11-16
    • Seong Mo PARKNak Woong Eum
    • Seong Mo PARKNak Woong Eum
    • H04N7/26
    • H04N19/00024H04N19/105H04N19/109H04N19/139H04N19/176H04N19/51H04N19/56
    • Disclosed is a motion estimation apparatus and method capable of reduce a memory bandwidth by accessing reference image data occupying the largest part of the memory bandwidth based on a result of motion estimation skip determination. The motion estimation apparatus includes a motion estimation skip determination unit, a sum absolute of absolute difference (SAD) processing unit and a multiplexer (MUX) unit. The motion estimation skip determination unit determines the presence of motion estimation skip by reading current image data and skip reference image data, and outputs a motion vector in a skip mode. The SAD processing unit calculates an SAD value by reading the current image data and reference image data and outputs a motion vector in a normal mode. The MUX unit outputs the motion vector in the skip mode or the motion vector in the normal mode as a final motion vector based on a skip flag signal.
    • 公开了一种运动估计装置和方法,其能够通过基于运动估计跳跃确定的结果访问占用存储器带宽的最大部分的参考图像数据来减少存储器带宽。 运动估计装置包括运动估计跳过确定单元,绝对差(SAD)处理单元和多路复用器(MUX)单元的和绝对值。 运动估计跳过确定单元通过读取当前图像数据并跳过参考图像数据来确定运动估计跳过的存在,并且以跳过模式输出运动矢量。 SAD处理单元通过读取当前图像数据和参考图像数据来计算SAD值,并以正常模式输出运动矢量。 MUX单元基于跳过标志信号将跳过模式中的运动矢量或正常模式中的运动矢量作为最终运动矢量输出。
    • 15. 发明申请
    • METHOD AND APPARATUS FOR ACCESSING MEMORY ACCORDING TO PROCESSOR INSTRUCTION
    • 用于根据处理器指令访问存储器的方法和装置
    • US20110055526A1
    • 2011-03-03
    • US12832313
    • 2010-07-08
    • Young Su KwonNak Woong EumSeong Mo Park
    • Young Su KwonNak Woong EumSeong Mo Park
    • G06F9/312G06F12/08
    • G06F9/342G06F9/3824
    • There is provided a method and apparatus for accessing a memory according to a processor instruction. The apparatus includes: a stack offset extractor extracting an offset value from a stack pointer offset indicating a local variable in the processor instruction; a local stack storage including a plurality of items, each of which is formed of an activation bit indicating whether each item is activated, an offset storing an offset value of a stack pointer, and an element storing a local variable value of the stack pointer; an offset comparator comparing the extracted offset value with an offset value of each item and determining whether an item corresponding to the extracted offset value is present in the local stack storage; and a stack access controller controlling a processor to access the local stack storage or a cache memory according to a determining result of the offset comparator.
    • 提供了根据处理器指令访问存储器的方法和装置。 该装置包括:堆栈偏移提取器,从指示处理器指令中的局部变量的堆栈指针偏移量中提取偏移值; 本地堆栈存储器,包括多个项目,每个项目由表示每个项目是否被激活的激活位,存储堆栈指针的偏移值的偏移量和存储堆栈指针的局部变量值的元素组成; 偏移比较器,将所提取的偏移值与每个项目的偏移值进行比较,并确定与所提取的偏移值相对应的项目是否存在于本地堆栈存储器中; 以及堆栈访问控制器,其根据偏移比较器的确定结果控制处理器访问本地堆栈存储器或高速缓冲存储器。
    • 16. 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。
    • 18. 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。
    • 19. 发明授权
    • Motion estimation apparatus and method
    • 运动估计装置及方法
    • US08737478B2
    • 2014-05-27
    • US13297291
    • 2011-11-16
    • Seong Mo ParkNak Woong Eum
    • Seong Mo ParkNak Woong Eum
    • H04N7/12H04N11/02H04N7/26
    • H04N19/00024H04N19/105H04N19/109H04N19/139H04N19/176H04N19/51H04N19/56
    • Disclosed is a motion estimation apparatus and method capable of reduce a memory bandwidth by accessing reference image data occupying the largest part of the memory bandwidth based on a result of motion estimation skip determination. The motion estimation apparatus includes a motion estimation skip determination unit, a sum absolute of absolute difference (SAD) processing unit and a multiplexer (MUX) unit. The motion estimation skip determination unit determines the presence of motion estimation skip by reading current image data and skip reference image data, and outputs a motion vector in a skip mode. The SAD processing unit calculates an SAD value by reading the current image data and reference image data and outputs a motion vector in a normal mode. The MUX unit outputs the motion vector in the skip mode or the motion vector in the normal mode as a final motion vector based on a skip flag signal.
    • 公开了一种运动估计装置和方法,其能够通过基于运动估计跳跃确定的结果访问占用存储器带宽的最大部分的参考图像数据来减少存储器带宽。 运动估计装置包括运动估计跳过确定单元,绝对差(SAD)处理单元和多路复用器(MUX)单元的和绝对值。 运动估计跳过确定单元通过读取当前图像数据并跳过参考图像数据来确定运动估计跳过的存在,并且以跳过模式输出运动矢量。 SAD处理单元通过读取当前图像数据和参考图像数据来计算SAD值,并以正常模式输出运动矢量。 MUX单元基于跳过标志信号将跳过模式中的运动矢量或正常模式中的运动矢量作为最终运动矢量输出。
    • 20. 发明授权
    • Accessing value for local variable from function call stack upon offset matching with instruction extracted stack pointer offset or from cache
    • 通过与指令提取的堆栈指针偏移或从缓存进行偏移匹配,从函数调用堆栈访问局部变量的值
    • US08478970B2
    • 2013-07-02
    • US12832313
    • 2010-07-08
    • Young Su KwonNak Woong EumSeong Mo Park
    • Young Su KwonNak Woong EumSeong Mo Park
    • G06F9/312G06F12/08
    • G06F9/342G06F9/3824
    • There is provided a method and apparatus for accessing a memory according to a processor instruction. The apparatus includes: a stack offset extractor extracting an offset value from a stack pointer offset indicating a local variable in the processor instruction; a local stack storage including a plurality of items, each of which is formed of an activation bit indicating whether each item is activated, an offset storing an offset value of a stack pointer, and an element storing a local variable value of the stack pointer; an offset comparator comparing the extracted offset value with an offset value of each item and determining whether an item corresponding to the extracted offset value is present in the local stack storage; and a stack access controller controlling a processor to access the local stack storage or a cache memory according to a determining result of the offset comparator.
    • 提供了根据处理器指令访问存储器的方法和装置。 该装置包括:堆栈偏移提取器,从指示处理器指令中的局部变量的堆栈指针偏移量中提取偏移值; 本地堆栈存储器,包括多个项目,每个项目由表示每个项目是否被激活的激活位,存储堆栈指针的偏移值的偏移量和存储堆栈指针的局部变量值的元素组成; 偏移比较器,将所提取的偏移值与每个项目的偏移值进行比较,并确定与所提取的偏移值相对应的项目是否存在于本地堆栈存储器中; 以及堆栈访问控制器,其根据偏移比较器的确定结果控制处理器访问本地堆栈存储器或高速缓冲存储器。