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1. 发明专利

JP2014042204A Sampling rate conversion device 有权
标题翻译：采样速率转换装置
公开(公告)号：JP2014042204A
公开(公告)日：2014-03-06
申请号：JP2012184291
申请日：2012-08-23
申请人： Ntt Electornics Corp , Nttエレクトロニクス株式会社
发明人： YAMADA YASUHIRO , KOIKE YUICHIRO
IPC分类号： H03H17/00 , G10L19/00 , H03H17/06 , H04N7/01
CPC分类号： H03H17/0248 , H03H17/00 , H03H17/0642 , H03H17/0685
摘要： PROBLEM TO BE SOLVED: To provide a general-purpose sampling rate conversion device that is small in circuit scale and low in cost.SOLUTION: A position coordinate difference calculation section 5 calculates a position coordinate difference between a position coordinate of an output digital signal and a position coordinate of a neighboring input digital signal. An FIR coefficient memory 9 saves FIR coefficients of an FIR-LPF having the characteristic of cutting off components of frequencies equal to or higher than half an output sampling rate, and when the position coordinate difference is input, outputs FIR coefficients corresponding to position coordinate differences between the output digital signal and a fixed number of input digital signals in the neighborhood of the position coordinate of the output digital signal. A parallel FIR computing element 3 performs an FIR-LPF interpolation operation using the fixed number of input digital signals and the FIR coefficients to calculate the output digital signal.
摘要翻译：要解决的问题：提供电路规模小，成本低的通用采样率转换装置。解决方案：位置坐标差计算部分5计算输出数字信号的位置坐标和相邻输入数字信号的位置坐标。 FIR系数存储器9保存具有切断等于或高于输出采样率的一半的频率分量的特性的FIR-LPF的FIR系数，并且当输入位置坐标差时，输出与位置坐标差对应的FIR系数在输出数字信号与输出数字信号的位置坐标附近的固定数量的输入数字信号之间。并行FIR计算元件3使用固定数量的输入数字信号和FIR系数来执行FIR-LPF内插操作，以计算输出数字信号。

2. 发明专利

JP2014103639A Sampling rate conversion device 有权
标题翻译：采样速率转换装置
公开(公告)号：JP2014103639A
公开(公告)日：2014-06-05
申请号：JP2012256368
申请日：2012-11-22
申请人： Ntt Electornics Corp , Nttエレクトロニクス株式会社
发明人： KOIKE YUICHIRO , YAMADA YASUHIRO
IPC分类号： H03H17/00 , H03H17/06
CPC分类号： H04N19/132 , H03H17/0621 , H03H17/0642 , H04N19/117 , H04N19/164 , H04N19/167 , H04N19/182 , H04N19/436
摘要： PROBLEM TO BE SOLVED: To provide a general purpose sampling rate conversion device that performs parallel conversion to a plurality of sampling rates in a small circuit scale and at a low cost.SOLUTION: Position coordinate difference calculation sections 5a-5c calculate position coordinate differences between position coordinates of a plurality of output digital signals and position coordinates of neighboring input digital signals. FIR coefficient memories 13a-13c save FIR coefficients of a FIR-LPF, and when the position coordinate differences are input, output FIR coefficients corresponding to position coordinate differences between the output digital signals and a fixed number of input digital signals present in neighborhoods of the position coordinates of the output digital signals. If the position coordinate differences corresponding to two or more different output digital signals, respectively, are calculated simultaneously, a control section 11 supplies the group of FIR coefficients and the group of input digital signals corresponding to the position coordinate differences, respectively, to a parallel FIR computing element 4 in a predetermined order. The parallel FIR computing element 4 performs a FIR-LPF interpolation operation using them to calculate the output digital signals.
摘要翻译：要解决的问题：提供一种通用采样率转换装置，其以小电路规模和低成本执行并行转换为多个采样率。解决方案：位置坐标差计算部分5a-5c计算位置坐标差计算部分多个输出数字信号的位置坐标和相邻输入数字信号的位置坐标。 FIR系数存储器13a-13c保存FIR-LPF的FIR系数，并且当输入位置坐标差时，输出对应于输出数字信号之间的位置坐标差的FIR系数和存在于输出数字信号的位置坐标。如果分别计算与两个或更多个不同的输出数字信号相对应的位置坐标差，则控制部分11将FIR系数组和对应于位置坐标差的输入数字信号组分别提供给并行 FIR计算元件4。并行FIR计算元件4使用它们执行FIR-LPF插值运算，以计算输出的数字信号。

3. 发明专利

JP2007214931A Device and method for detecting motion vector 有权
标题翻译：用于检测运动矢量的装置和方法
公开(公告)号：JP2007214931A
公开(公告)日：2007-08-23
申请号：JP2006033193
申请日：2006-02-10
申请人： Ntt Electornics Corp , Nttエレクトロニクス株式会社
发明人： KOIKE YUICHIRO , TAKAHASHI TAKUO
IPC分类号： H04N19/50 , G06T7/20 , H04N19/105 , H04N19/134 , H04N19/139 , H04N19/159 , H04N19/16 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/503 , H04N19/51 , H04N19/513 , H04N19/523 , H04N19/533 , H04N19/85
CPC分类号： H04N19/132 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/194 , H04N19/43 , H04N19/523
摘要： PROBLEM TO BE SOLVED: To provide a motion vector detecting device for reducing an operating amount for detecting a motion vector and also preventing the deterioration of image quality, and to provide a motion vector detecting method. SOLUTION: The motion vector detecting device comprises: a first motion vector detecting circuit 141 for detecting the respective motion vectors as first motion vectors, by each field between encryption object image and a reference image by precision of not less than one pixel unit; a first motion vector extracting circuit 142 for extracting the first motion vector from the plurality of detected motion vectors in response to the predetermined number of reduction; a selecting circuit 143 for selecting the plurality of first motion vectors detected by the first motion vector detecting circuit 141 or the first motion vector extracted by the first motion vector extracting circuit 142; and a second motion vector detecting circuit 151 for detecting the motion vector by precision of less than one pixel as the second motion vector, based on the first motion vector selected by the selecting circuit 143. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于减少用于检测运动矢量的操作量并且还防止图像质量劣化的运动矢量检测装置，并且提供运动矢量检测方法。运动矢量检测装置包括：第一运动矢量检测电路141，用于通过加密对象图像和参考图像之间的每个场的精度不同于一个像素单位来检测各运动矢量作为第一运动矢量 ; 第一运动矢量提取电路142，用于响应于预定数量的减少从多个检测到的运动矢量中提取第一运动矢量; 选择电路143，用于选择由第一运动矢量检测电路141检测的多个第一运动矢量或由第一运动矢量提取电路142提取的第一运动矢量; 以及第二运动矢量检测电路151，用于基于由选择电路143选择的第一运动矢量，以小于一个像素的精度检测运动矢量作为第二运动矢量。（C）2007，JPO＆INPIT

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