Double precision approximation of a single precision operation
    1.
    发明授权
    Double precision approximation of a single precision operation 有权
    双精度逼近的单精度运算

    公开(公告)号:US08924447B2

    公开(公告)日:2014-12-30

    申请号:US13280607

    申请日:2011-10-25

    IPC分类号: G06F7/00 G06F7/544

    CPC分类号: G06F7/544 G06F2207/382

    摘要: A method for double precision approximation of a single precision operation is disclosed. The method may include steps (A) to (B). Step (A) may store an input value in a processor. The processor generally implements a plurality of first operations in hardware. Each first operation may receive a first variable as an argument. The first variable may be implemented in a fixed point format at a single precision. The input value may be implemented in the fixed point format at a double precision. Step (B) may generate an output value by emulating a selected one of the first operations using the input value as the argument. The emulation may utilize the selected first operation in hardware. The output value may be implemented in the fixed point format at the double precision. The emulation is generally performed by a plurality of instructions executed by the processor.

    摘要翻译: 公开了一种用于单精度操作的双精度近似的方法。 该方法可以包括步骤(A)至(B)。 步骤(A)可以将输入值存储在处理器中。 处理器通常在硬件中实现多个第一操作。 每个第一操作可以接收第一变量作为参数。 第一变量可以以单个精度以固定点格式实现。 输入值可以以双重精度以固定点格式实现。 步骤(B)可以通过使用输入值作为参数来模拟所选择的第一操作之一来生成输出值。 仿真可以在硬件中利用所选择的第一操作。 输出值可以双精度的固定点格式实现。 仿真通常由处理器执行的多个指令执行。

    DOUBLE PRECISION APPROXIMATION OF A SINGLE PRECISION OPERATION
    2.
    发明申请
    DOUBLE PRECISION APPROXIMATION OF A SINGLE PRECISION OPERATION 有权
    单精度操作的双重精度逼近

    公开(公告)号:US20120271871A1

    公开(公告)日:2012-10-25

    申请号:US13280607

    申请日:2011-10-25

    IPC分类号: G06F5/00

    CPC分类号: G06F7/544 G06F2207/382

    摘要: A method for double precision approximation of a single precision operation is disclosed. The method may include steps (A) to (B). Step (A) may store an input value in a processor. The processor generally implements a plurality of first operations in hardware. Each first operation may receive a first variable as an argument. The first variable may be implemented in a fixed point format at a single precision. The input value may be implemented in the fixed point format at a double precision. Step (B) may generate an output value by emulating a selected one of the first operations using the input value as the argument. The emulation may utilize the selected first operation in hardware. The output value may be implemented in the fixed point format at the double precision. The emulation is generally performed by a plurality of instructions executed by the processor.

    摘要翻译: 公开了一种用于单精度操作的双精度近似的方法。 该方法可以包括步骤(A)至(B)。 步骤(A)可以将输入值存储在处理器中。 处理器通常在硬件中实现多个第一操作。 每个第一操作可以接收第一变量作为参数。 第一变量可以以单个精度以固定点格式实现。 输入值可以以双重精度以固定点格式实现。 步骤(B)可以通过使用输入值作为参数来模拟所选择的第一操作之一来生成输出值。 仿真可以在硬件中利用所选择的第一操作。 输出值可以双精度的固定点格式实现。 仿真通常由处理器执行的多个指令执行。

    Stochastic vector based network echo cancellation
    3.
    发明授权
    Stochastic vector based network echo cancellation 有权
    基于随机矢量的网络回波消除

    公开(公告)号:US08804946B2

    公开(公告)日:2014-08-12

    申请号:US13233417

    申请日:2011-09-15

    IPC分类号: H04B3/23

    CPC分类号: H04B3/23

    摘要: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to generate a first sample by filtering an input vector based on (a) a filter vector and (b) a stochastic vector. Each of a plurality of components in the stochastic vector generally has a respective random value. The first circuit may also be configured to generate a second sample as a difference between a third sample and the first sample. The third sample may be received from a network as an echo. The second circuit may be configured to update a subset of a plurality of taps of the filtering where a corresponding one of the components of the stochastic vector has a first value of the random values.

    摘要翻译: 公开了一种通常具有第一电路和第二电路的装置。 第一电路可以被配置为通过基于(a)滤波器向量和(b)随机矢量对输入向量进行滤波来生成第一采样。 随机矢量中的多个分量中的每一个通常具有相应的随机值。 第一电路还可以被配置为产生第二样本作为第三样本和第一样本之间的差。 可以从网络接收第三个样本作为回波。 第二电路可以被配置为更新滤波的多个抽头的子集,其中随机矢量的相应一个分量具有随机值的第一值。

    STOCHASTIC VECTOR BASED NETWORK ECHO CANCELLATION
    4.
    发明申请
    STOCHASTIC VECTOR BASED NETWORK ECHO CANCELLATION 有权
    基于STOCHASTIC VECTOR的网络ECHO CANCELLATION

    公开(公告)号:US20120224686A1

    公开(公告)日:2012-09-06

    申请号:US13233417

    申请日:2011-09-15

    IPC分类号: H04M9/08

    CPC分类号: H04B3/23

    摘要: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to generate a first sample by filtering an input vector based on (a) a filter vector and (b) a stochastic vector. Each of a plurality of components in the stochastic vector generally has a respective random value. The first circuit may also be configured to generate a second sample as a difference between a third sample and the first sample. The third sample may be received from a network as an echo. The second circuit may be configured to update a subset of a plurality of taps of the filtering where a corresponding one of the components of the stochastic vector has a first value of the random values.

    摘要翻译: 公开了一种通常具有第一电路和第二电路的装置。 第一电路可以被配置为通过基于(a)滤波器向量和(b)随机矢量对输入向量进行滤波来生成第一采样。 随机矢量中的多个分量中的每一个通常具有相应的随机值。 第一电路还可以被配置为产生第二样本作为第三样本和第一样本之间的差。 可以从网络接收第三个样本作为回波。 第二电路可以被配置为更新滤波的多个抽头的子集,其中随机矢量的相应一个分量具有随机值的第一值。

    IMAGE PROCESSOR COMPRISING GESTURE RECOGNITION SYSTEM WITH COMPUTATIONALLY-EFFICIENT STATIC HAND POSE RECOGNITION
    5.
    发明申请
    IMAGE PROCESSOR COMPRISING GESTURE RECOGNITION SYSTEM WITH COMPUTATIONALLY-EFFICIENT STATIC HAND POSE RECOGNITION 审中-公开
    图像处理器包含具有计算能力的姿态识别的姿势识别系统

    公开(公告)号:US20150161437A1

    公开(公告)日:2015-06-11

    申请号:US14358320

    申请日:2014-05-01

    IPC分类号: G06K9/00

    摘要: An image processing system comprises an image processor having image processing circuitry and an associated memory. The image processor is configured to implement a gesture recognition system comprising a static pose recognition module. The static pose recognition module is configured to identify a hand region of interest in at least one image, to perform a skeletonization operation on the hand region of interest, to determine a main direction of the hand region of interest utilizing a result of the skeletonization operation, to perform a scanning operation on the hand region of interest utilizing the determined main direction to estimate a plurality of hand features that are substantially invariant to hand orientation, and to recognize a static pose of the hand region of interest based on the estimated hand features.

    摘要翻译: 图像处理系统包括具有图像处理电路和相关存储器的图像处理器。 图像处理器被配置为实现包括静态姿态识别模块的手势识别系统。 静态姿势识别模块被配置为识别至少一个图像中的感兴趣的手区域,以对感兴趣的手区域进行骨架化操作,以利用骨架化操作的结果来确定感兴趣的手区域的主方向 使用所确定的主方向对感兴趣的手区域执行扫描操作,以估计基本上不变的手取向的多个手部特征,并且基于估计的手部特征来识别感兴趣的手区域的静态姿态 。

    FAST ECHO GAIN CHANGE DETECTION
    6.
    发明申请
    FAST ECHO GAIN CHANGE DETECTION 有权
    快速ECHO增益变化检测

    公开(公告)号:US20120288084A1

    公开(公告)日:2012-11-15

    申请号:US13295385

    申请日:2011-11-14

    IPC分类号: H04M9/08

    CPC分类号: H04B3/23

    摘要: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to synthesize a first vector by filtering a second vector based on a third vector. The second circuit may be configured to (i) generate a gain corresponding to a fourth vector, (ii) compare the gain to a plurality of thresholds and (iii) update the third vector as a function of the gain where the compare determines that the gain is not between the thresholds. The fourth vector may be received from a network as an echo of the second vector.

    摘要翻译: 公开了一种通常具有第一电路和第二电路的装置。 第一电路可以被配置为通过基于第三矢量对第二矢量进行滤波来合成第一矢量。 第二电路可以被配置为(i)生成与第四矢量相对应的增益,(ii)将增益与多个阈值进行比较,以及(iii)根据增益的函数更新第三矢量,其中比较确定 增益不在阈值之间。 第四矢量可以作为第二矢量的回波从网络接收。

    Fast echo gain change detection
    7.
    发明授权
    Fast echo gain change detection 有权
    快速回波增益变化检测

    公开(公告)号:US08817970B2

    公开(公告)日:2014-08-26

    申请号:US13295385

    申请日:2011-11-14

    IPC分类号: H04M1/00

    CPC分类号: H04B3/23

    摘要: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to synthesize a first vector by filtering a second vector based on a third vector. The second circuit may be configured to (i) generate a gain corresponding to a fourth vector, (ii) compare the gain to a plurality of thresholds and (iii) update the third vector as a function of the gain where the compare determines that the gain is not between the thresholds. The fourth vector may be received from a network as an echo of the second vector.

    摘要翻译: 公开了一种通常具有第一电路和第二电路的装置。 第一电路可以被配置为通过基于第三矢量对第二矢量进行滤波来合成第一矢量。 第二电路可以被配置为(i)生成与第四矢量相对应的增益,(ii)将增益与多个阈值进行比较,以及(iii)根据增益的函数更新第三矢量,其中比较确定 增益不在阈值之间。 第四矢量可以作为第二矢量的回波从网络接收。