Semiconductor storage device with macro-cell with monitoring of input
data
    1.
    发明授权
    Semiconductor storage device with macro-cell with monitoring of input data 失效
    具有监控输入数据的宏单元的半导体存储设备

    公开(公告)号:US5701267A

    公开(公告)日:1997-12-23

    申请号:US578892

    申请日:1995-12-27

    CPC分类号: G11C7/00 G11C29/003

    摘要: It is an object of the present invention to realize bypass of input data in a macro-cell such as a FIFO memory etc. to facilitate test and evaluation about other macro-cells. A bypass route (6) is provided between an input port (DI) and an output port (DO) in a FIFO memory (1) and a data bypassing selector (8) is further provided for selecting the bypass route (6) and a sense amplifier (7) of a read bit line (R.BL). Then, in the test mode, a first selector control signal (S) is set to an L level and a second selector control signal (S) of opposite phase is set to an H level. Thus, in the test mode, a data inputted from the input port (DI) is outputted from the output port (DO) by way of the bypass route (6) without via memory cells (MC1-MCX).

    摘要翻译: 本发明的目的是实现诸如FIFO存储器等的宏小区中的输入数据的旁路,以便于关于其他宏小区的测试和评估。 旁路路径(6)设置在FIFO存储器(1)中的输入端口(DI)和输出端口(DO)之间,并且数据旁路选择器(8)还被设置用于选择旁路路径(6)和 读位线(RBL)的读出放大器(7)。 然后,在测试模式中,将第一选择器控制信号(S)设置为L电平,将相反相位的第二选择器控制信号(+ E,ovs S + EE)设置为H电平。 因此,在测试模式中,从输入端口(DI)输入的数据通过旁路路径(6)从输出端口(DO)输出,而不经由存储单元(MC1-MCX)输出。

    Image compressing coding apparatus and method for detecting a top position of an image in a buffer overflow
    2.
    发明授权
    Image compressing coding apparatus and method for detecting a top position of an image in a buffer overflow 失效
    用于检测缓冲器溢出中的图像的顶部位置的图像压缩编码装置和方法

    公开(公告)号:US06907068B2

    公开(公告)日:2005-06-14

    申请号:US09922695

    申请日:2001-08-07

    摘要: To provide an image compression coding apparatus and method capable of minimizing a deterioration in picture quality which is caused on a reproduced image during an overflow of an output buffer. A picture top detector (7A) executes a picture top detection processing for discarding image compression data (S2) until a top of a picture of the image compression data (S2) is detected during detection of a start address, and restarts a normal operation after detecting the top of the picture. A processor (5) brings a detection start register (8) into a set state and causes the picture top detector (7A) to execute the picture top detection processing during an overflow of an output buffer (3a), and executes an interruption processing of rewriting, as a value of a write address register (9), an address where a top of an overflow picture to be a picture causing the overflow is stored.

    摘要翻译: 提供一种能够最小化在输出缓冲器溢出期间在再现图像上引起的图像质量劣化的图像压缩编码装置和方法。 图像顶部检测器(7A)执行用于丢弃图像压缩数据(S2)的图像顶部检测处理,直到在检测到开始地址期间检测到图像压缩数据(S 2)的图像的顶部,并重新开始 检测到图像顶部后的正常操作。 处理器(5)使检测开始寄存器(8)进入设置状态,并使图像顶部检测器(7A)在输出缓冲器(3a)溢出期间执行图像顶部检测处理,并执行中断 作为写入地址寄存器(9)的值的重写处理,存储溢出图像的顶部作为导致溢出的图像的地址。

    Motion vector detecting device improved in detection speed of motion vectors and system employing the same devices
    5.
    发明授权
    Motion vector detecting device improved in detection speed of motion vectors and system employing the same devices 失效
    运动矢量检测装置提高运动矢量的检测速度和采用相同装置的系统

    公开(公告)号:US06968011B2

    公开(公告)日:2005-11-22

    申请号:US10155993

    申请日:2002-05-29

    摘要: The control circuit controls output of template block data held in the input section such that a plurality of operation units within the operation section are provided with data of unadjacent template blocks that are different from each other. The operation units within the operation section detect motion vectors according to the template block data provided thereto. Thus, motion vector detection in the template blocks except for those in a region on a display screen requiring no motion vector detection is distributed in the plurality of operation units. Accordingly, the motion vector search can be performed in a wider range in a vertical or horizontal direction than in the conventional case within the same operation time.

    摘要翻译: 控制电路控制保持在输入部分中的模板块数据的输出,使得操作部分内的多个操作单元被提供有彼此不同的不相邻模板块的数据。 操作部分内的操作单元根据提供给它的模板块数据来检测运动矢量。 因此,除了不需要运动矢量检测的显示画面上的区域中的模板块中的运动矢量检测分布在多个运算单元中。 因此,在相同的动作时间内,与现有的情况相比,可以在比垂直方向或水平方向更宽的范围内进行运动矢量搜索。

    Unit for detecting motion vector for motion compensation
    7.
    发明授权
    Unit for detecting motion vector for motion compensation 失效
    用于检测运动补偿运动矢量的单元

    公开(公告)号:US5949486A

    公开(公告)日:1999-09-07

    申请号:US795217

    申请日:1997-02-05

    摘要: Each of element processors arranged in correspondence to pixels of a template block and a search window block respectively includes an A register and a B register provided in parallel with each other for storing search window block pixel data respectively, and a T register for storing template block pixel data. Motion vector evaluation value calculation is performed through a first one of the A and B registers and the pixel data stored in the T register, while operated data is transferred to the second one of the A and B registers from the first one of the A and B registers in parallel with the calculation operation, for storing head search window block pixel data of a next search window. A motion vector is detected at a high speed in excellent coding efficiency.

    摘要翻译: 与模板块和搜索窗口块的像素相对应地布置的每个元素处理器分别包括彼此并行提供的用于存储搜索窗口块像素数据的A寄存器和B寄存器,以及用于存储模板块的T寄存器 像素数据。 通过A和B寄存器中的第一个和存储在T寄存器中的像素数据执行运动矢量评估值计算,而操作数据从A和B中的第一个传送到A和B寄存器中的第二个, B与计算操作并行登记,用于存储下一个搜索窗口的头部搜索窗口块像素数据。 以良好的编码效率高速检测运动矢量。

    Method of and circuit for generating zigzag addresses
    8.
    发明授权
    Method of and circuit for generating zigzag addresses 失效
    用于生成之字形地址的方法和电路

    公开(公告)号:US5600813A

    公开(公告)日:1997-02-04

    申请号:US15374

    申请日:1993-02-09

    摘要: In order to generate zigzag addresses for Discrete Cosine Transformation DCT data arranged in the form of a square matrix, row differentials (.DELTA.y) and column differentials (.DELTA.x) being differentials of row addresses (y) and column addresses (x) are previously stored to be successively read out (steps S12 and S13). The row differentials (.DELTA.y) and the column differentials (.DELTA.x) are added to the row addresses (y) and the column addresses (x) respectively, to newly obtain zigzag addresses (steps S14 and S15). Thus, the amount data to be stored can be reduced. Further, it is possible to further reduce the amount of data to be stored by compressing data through regularity of the row differentials (.DELTA.y) and the column differentials (.DELTA.x).

    摘要翻译: 为了产生以方形矩阵形式排列的离散余弦变换DCT数据的Z字形地址,行行地址(y)和列地址(x)之间的差分是行差(DELTA y)和列差(DELTA x) 存储以被连续地读出(步骤S12和S13)。 行行差(DELTA y)和列差(DELTA x)分别被添加到行地址(y)和列地址(x),以最新地获得之字形地址(步骤S14和S15)。 因此,可以减少要存储的量数据。 此外,通过行差(DELTA y)和列差(DELTA x)的规律性压缩数据,可以进一步减少要存储的数据量。

    Data processor and data processing method reduced in power consumption during memory access
    9.
    发明授权
    Data processor and data processing method reduced in power consumption during memory access 失效
    数据处理器和数据处理方法降低了存储器访问期间的功耗

    公开(公告)号:US06918002B2

    公开(公告)日:2005-07-12

    申请号:US10053545

    申请日:2002-01-24

    摘要: When the CPU writes data into a memory, a 0 detection circuit detects the number of bits having the value 0 from the data. When the number of bits with 0 is equal to or larger than the number of bits with 1, the data output from the CPU is provided to the memory under control of a selector. When the number of bits with 0 is fewer than the number of bits with 1, the data output from the CPU is inverted and provided to the memory under control of the selector. Accordingly, the rewriting frequency of each memory cell from 0 to 1 or from 1 to 0 in the memory can be reduced in average. Thus the power consumption of the memory in a data writing mode can be reduced.

    摘要翻译: 当CPU将数据写入存储器时,0检测电路从数据中检测出具有值0的位数。 当具有0的比特数等于或大于具有1的比特数时,在选择器的控制下,从CPU输出的数据被提供给存储器。 当具有0的比特数少于具有1的比特数时,从CPU输出的数据被反转,并在选择器的控制下提供给存储器。 因此,可以平均地减少存储器中的每个存储单元从0到1或从1到0的重写频率。 因此,可以减少数据写入模式中的存储器的功耗。

    Motion vector detecting apparatus
    10.
    发明授权
    Motion vector detecting apparatus 失效
    运动矢量检测装置

    公开(公告)号:US06765965B1

    公开(公告)日:2004-07-20

    申请号:US09425214

    申请日:1999-10-22

    IPC分类号: H04B166

    摘要: A plurality of motion detecting units of which at least a template block size, i.e., the number of estimation pixels, or a search area size is different among the motion detecting units are used adaptively according to the characteristic of, or the prediction coding type of, a target picture. This enables efficient motion vector detection to be accomplished without increasing the amount of hardware or power consumption.

    摘要翻译: 根据运动检测单元的特性或预测编码类型,运动检测单元中的至少模板块大小(即,估计像素的数量)或搜索区域大小不同的多个运动检测单元 ,目标图片。 这使得能够在不增加硬件或功耗的情况下实现有效的运动矢量检测。