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    • 1. 发明申请
    • GRAPHICS LIGHTING ENGINE INCLUDING LOG AND ANTI-LOG UNITS
    • 图形照明发动机,包括日志和防盗单元
    • WO2013101235A1
    • 2013-07-04
    • PCT/US2011/068265
    • 2011-12-31
    • INTEL CORPORATIONSHEIKH, FarhanaMATHEW, SanuKRISHNAMURTHY, Ram
    • SHEIKH, FarhanaMATHEW, SanuKRISHNAMURTHY, Ram
    • G06F17/00
    • G06T15/50G06T15/506
    • Disclosed is an apparatus and method for generating a lighting value based on a number of lighting factors. A lighting accelerator first converts an ambient portion, a diffuse light portion, and a specular light portion of the lighting factors into the log domain. Then, data combination units operate on the lighting factors after they have been converted. Then, the lighting factors are converted back from the log domain using anti-log processing. Converting the lighting factors into the log domain is accomplished by using a series of linear equations using coefficients that are all based on powers of two, and are therefore easily calculable. Further, while in the log domain, the specular light portion of the lighting factor is operated on by a special purpose multiplier that uses a truncated partial product tree, saving area and power with only a negligible amount of error.
    • 公开了一种基于多个照明因素产生照明值的装置和方法。 照明加速器首先将照明因素的环境部分,漫射光部分和镜面光部分转换成对数域。 然后,数据组合单元在转换后对照明因素进行操作。 然后,使用反日志处理将照明因素从日志域转换回来。 将照明因子转换为对数域是通过使用一系列线性方程来实现的,这些方程全部基于二次幂,因此易于计算。 此外,在对数域中,照明因子的镜面光部分由专用乘法器操作,该专用乘法器使用截断的部分乘积树,仅以可忽略的误差量来节省面积和功率。
    • 3. 发明申请
    • FAST FOURIER TRANSFORM ARCHITECTURE
    • 快速傅立叶变换结构
    • WO2017111881A1
    • 2017-06-29
    • PCT/US2015/066963
    • 2015-12-21
    • INTEL CORPORATION
    • SHEIKH, FarhanaSHARMA, AnkitKULKARNI, Jaydeep
    • H04L27/26G06F17/14
    • H04L27/263G06F17/142
    • A calculation circuit for calculating a transform of an input sequence may include a plurality of butterfly computation circuits configured to perform a plurality of butterfly computations and to produce a plurality of outputs during each of a plurality of computation stages, a wired routing network configured to route a first plurality of outputs of the plurality of butterfly computation circuits from a first computation stage of the plurality of computation stages as input to the plurality of butterfly computation circuits during a second computation stage of the plurality of computation stages according to a reconfigurable routing configuration, and routing control circuitry configured to modify the reconfigurable routing configuration for a third computation stage of the plurality of computation stages.
    • 用于计算输入序列的变换的计算电路可以包括多个蝶形运算电路,该多个蝶形运算电路被配置为执行多个蝶形运算并且在多个计算阶段中的每一个阶段期间产生多个输出 有线路由网络,其被配置为在多个计算级的第一计算级期间将多个计算级中的第一计算级的第一多个输出作为输入发送到多个蝶形计算电路 根据可重新配置的路由配置来执行阶段;以及路由控制电路,其被配置为修改用于所述多个计算阶段中的第三计算阶段的可重新配置路由配置。