Storing and processing SIMD saturation history flags and data size
    12.
    发明申请
    Storing and processing SIMD saturation history flags and data size 审中-公开
    存储和处理SIMD饱和历史标志和数据大小

    公开(公告)号:US20080209187A1

    公开(公告)日:2008-08-28

    申请号:US12149429

    申请日:2008-05-01

    IPC分类号: G06F9/30

    摘要: A method and apparatus for calculation and storage of Single-Instruction-Multiple-Data (SIMD) saturation history information. A first coprocessor instruction has a first format identifying a saturation operation, a first source having packed data elements and a second source having packed data elements. The saturating operation is executed on the packed data elements of the first and second sources. Saturation flags are stored in the Wireless Coprocessor Saturation Status Flag (wCSSF) register to indicate if a result of the saturating operation saturated. A second coprocessor instruction has a second format identifying a saturation history processing operation and a saturation data size. An operand for the processing operation is determined based on the saturation data size, and the processing operation is executed on the saturation flags and the operand for the saturation data size. Condition code flags are stored in a status register to indicate the result of processing operation.

    摘要翻译: 一种用于计算和存储单指令多数据(SIMD)饱和历史信息的方法和装置。 第一协处理器指令具有标识饱和操作的第一格式,具有打包数据元素的第一源和具有压缩数据元素的第二源。 对第一和​​第二源的压缩数据元素执行饱和操作。 饱和标志存储在无线协处理器饱和状态标志(wCSSF)寄存器中,以指示饱和操作的结果是否饱和。 第二协处理器指令具有标识饱和历史处理操作和饱和度数据大小的第二格式。 基于饱和度数据大小确定处理操作的操作数,并且对饱和度标志和饱和度数据大小的操作数执行处理操作。 条件码标志存储在状态寄存器中,以指示处理操作的结果。

    Cross multiply and add instruction and multiply and subtract instruction SIMD execution on real and imaginary components of a plurality of complex data elements
    13.
    发明授权
    Cross multiply and add instruction and multiply and subtract instruction SIMD execution on real and imaginary components of a plurality of complex data elements 有权
    交叉乘法和加法指令,对多个复数数据元素的实部和虚部进行乘法和减法指令SIMD执行

    公开(公告)号:US07392368B2

    公开(公告)日:2008-06-24

    申请号:US11173408

    申请日:2005-06-30

    IPC分类号: G06F9/302

    摘要: Methods and apparatus for calculating Single-Instruction-Multiple-Data (SIMD) complex arithmetic. A coprocessor instruction has a format identifying a multiply and subtract instruction to generate real components for complex multiplication of first operand complex data and corresponding second operand complex data, a cross multiply and add instruction to generate imaginary components for complex multiplication of the first operand complex data and the corresponding second operand complex data, an add-subtract instruction to add real components of the first operand to imaginary components of the second operand and to subtract real components of the second operand from imaginary components of the first operand, and a subtract-add instruction to subtract the real components of the second operand from the imaginary components of the first operand and to add the real components of the first operand to the imaginary components of the second operand.

    摘要翻译: 用于计算单指令多数据(SIMD)复数运算的方法和装置。 协处理器指令具有标识乘法和减法指令的格式,以生成用于第一操作数复数据和对应的第二操作数复数数据的复乘的实数分量,产生用于第一操作数复数数据的复乘的虚分量的交叉乘法和加法指令 和对应的第二操作数复数据,加法减法指令,将第一操作数的实部分加到第二操作数的虚部,并从第一操作数的虚部分减去第二操作数的实部, 用于从第一操作数的虚分量中减去第二操作数的实分量并将第一操作数的实分量加到第二操作数的虚分量的指令。

    SIMD four-data element average instruction
    15.
    发明授权
    SIMD four-data element average instruction 有权
    SIMD四元数据元平均指令

    公开(公告)号:US07328230B2

    公开(公告)日:2008-02-05

    申请号:US10814990

    申请日:2004-03-26

    IPC分类号: G06F7/38

    摘要: According to some embodiments, a Single-Instruction/Multiple-Data averaging operation is presented. The averaging operation averages multiple sets of data elements, for example, two data elements each from a first source and a second source, producing a set of averages. In at least one embodiment, in a first adder stage, a first plurality of data elements are added to a second plurality of data elements, generating a plurality of intermediate results. In a second adder stage, multiple different combinations of the plurality of intermediate results are added together, generating a plurality of sum results. The two least significant bits of each sum result are discarded.

    摘要翻译: 根据一些实施例,呈现单指令/多数据平均操作。 平均操作将多组数据元素(例如,每个来自第一源和第二源的两个数据元素)平均化,产生一组平均值。 在至少一个实施例中,在第一加法器级中,将第一多个数据元素添加到第二多个数据元素,产生多个中间结果。 在第二加法器级中,将多个中间结果的多个不同组合相加在一起,产生多个求和结果。 每个和结果的两个最低有效位被丢弃。

    Storing and transferring SIMD saturation history flags and data size
    16.
    发明授权
    Storing and transferring SIMD saturation history flags and data size 有权
    存储和传输SIMD饱和历史标志和数据大小

    公开(公告)号:US07213128B2

    公开(公告)日:2007-05-01

    申请号:US10262195

    申请日:2002-09-30

    IPC分类号: G06F9/30

    摘要: A method and apparatus for calculation and storage of Single-Instruction-Multiple-Data (SIMD) saturation history information pursuant to instruction execution. A coprocessor instruction has a format identifying a saturating operation, a first source having packed data elements and a second source having packed data elements. The saturating operation is executed on the packed data elements of the first and second sources. Saturation flags are stored in bits zero through seven of the Wireless Coprocessor Saturation Status Flag (wCSSF) register to indicate if a result of the saturating operation saturated.

    摘要翻译: 一种用于根据指令执行计算和存储单指令多数据(SIMD)饱和历史信息的方法和装置。 协处理器指令具有标识饱和操作的格式,具有压缩数据元素的第一源和具有打包数据元素的第二源。 对第一和​​第二源的压缩数据元素执行饱和操作。 饱和标志存储在无线协处理器饱和状态标志(wCSSF)寄存器中的零至七位中,以指示饱和操作的结果是否饱和。

    Method and system for noise management for spatial processing in digital image/video capture systems
    18.
    发明授权
    Method and system for noise management for spatial processing in digital image/video capture systems 有权
    数字图像/视频采集系统空间处理噪声管理方法和系统

    公开(公告)号:US08175378B2

    公开(公告)日:2012-05-08

    申请号:US12236075

    申请日:2008-09-23

    IPC分类号: G06K9/00

    CPC分类号: H04N5/217 H04N9/045

    摘要: A computer-implemented method for noise management in a digital image system measures noise levels of pixel data. The noise levels are adjusted with at least one of an intensity gain setting, a spatial gain setting, and a global gain setting to calculate noise adaptive thresholds for use during spatial processing of the pixel data.

    摘要翻译: 用于数字图像系统中的噪声管理的计算机实现的方法测量像素数据的噪声水平。 利用强度增益设置,空间增益设置和全局增益设置中的至少一个来调整噪声水平,以计算在像素数据的空间处理期间使用的噪声自适应阈值。

    Adaptive early exit techniques in image correlation
    20.
    发明授权
    Adaptive early exit techniques in image correlation 有权
    自适应早退技术在图像相关中

    公开(公告)号:US08804844B2

    公开(公告)日:2014-08-12

    申请号:US11138825

    申请日:2005-05-25

    IPC分类号: H04N7/12

    CPC分类号: H04N19/42 H04N19/51 H04N19/61

    摘要: Images are obtained for image compression. The images are compared using sum of absolute difference devices, which have arithmetic parts, and accumulators. The sign bits of the accumulators are determined at a time of minimum distortion between two images. These sign bits are associated with sets of probabilistically-similar parts. When other sets from that set are obtained later, an early exit is established.

    摘要翻译: 获得图像压缩图像。 使用具有算术部分和累加器的绝对差分装置的和来比较图像。 在两个图像之间的最小失真时确定累加器的符号位。 这些符号位与概率相似的部分的集合相关联。 当后来获得该集合的其他集合时,将建立一个早期退出。