公开(公告)号：US07574468B1

公开(公告)日：2009-08-11

申请号：US11083575

申请日：2005-03-18

申请人： Jitendra Rayala

发明人： Jitendra Rayala

IPC分类号： G06F17/14

CPC分类号： G06F17/147

摘要： A distributed arithmetic multiply/accumulate (MAC) unit for computing inverse discrete cosine transformations (IDCTs). In one embodiment, the distributed arithmetic MAC unit includes: (1) a first pipeline stage configured to perform dot products on received sequential input data and (2) a second pipeline stage coupled to the first pipeline stage and configured to compute additions and subtractions of the dot products to yield sequential output data.

摘要翻译： 用于计算逆离散余弦变换（IDCT）的分布式算术乘法/累积（MAC）单元。 在一个实施例中，分布式算术MAC单元包括：（1）第一流水线级，被配置为在接收到的顺序输入数据上执行点积;以及（2）第二流水线级，其耦合到第一流水线级并且被配置为计算加法和减法 点产品产生顺序输出数据。

公开(公告)号：US20120147945A1

公开(公告)日：2012-06-14

申请号：US12967925

申请日：2010-12-14

申请人： Jitendra Rayala

发明人： Jitendra Rayala

IPC分类号： H04L27/06 ,  H04L27/01

CPC分类号： H04L25/03891 ,  H04L25/0246 ,  H04L25/03216

摘要： A signal decoder, a method of detecting an RF signal at a MIMO receiver and a MIMO receiver are disclosed herein. In on embodiment, the signal decoder includes: (1) a tree pruner configured to reduce a number of nodes of an MLD tree to expand based on modulation properties of the transmitted radio signals and SE enumeration of at least a portion of the MLD tree and (2) a vector sorter configured to sort multiple rows of child nodes of the MLD tree in parallel.

摘要翻译： 本文公开了信号解码器，MIMO接收机和MIMO接收机的RF信号检测方法。 在实施例中，信号解码器包括：（1）树修剪器，被配置为基于所发射的无线电信号的调制属性和MLD树的至少一部分的SE枚举来减少MLD树的节点数量以扩展;以及 （2）向量分类器，其被配置为并行排列MLD树的多行子节点。

公开(公告)号：US07386120B2

公开(公告)日：2008-06-10

申请号：US10837454

申请日：2004-04-30

申请人： Jitendra Rayala

发明人： Jitendra Rayala

IPC分类号： H04M9/08

CPC分类号： H04B3/56 ,  H04B3/23 ,  H04B2203/5425 ,  H04B2203/5437 ,  H04B2203/5491

摘要： Method and apparatus for canceling an echo path by locating an active region thereof for subsequent application of a filter thereto. A plurality of far-end signals RIN(n) and a corresponding plurality of near-end signals SIN(n) are acquired. Correlation within the far-end and near-end signals RIN(n) and SIN(n) is removed and gain control applied to bring the corresponding ones of the far-end and near-end signals RIN(n) and SIN(n) to a uniform level. The plurality of far-end and near-end signals RIN(n) and SIN(n) are then stored in respective data blocks. The stored data blocks are subsequently processed together to determine a set of coefficients for a bank of adaptive filters. An energy estimate is computed for each one of the bank of adaptive filters and the location of the active region of the echo determined from the energy estimates.

摘要翻译： 一种用于通过定位其有效区域来消除回波路径以用于随后将过滤器施加到其上的方法和装置。 获取多个远端信号R IN（n）和对应的多个近端信号S SUB（n）。 去除远端和近端信号R IN（N）和S SUB（n）中的相关性，并且应用增益控制以使对应的远端 - 端和近端信号R IN（N）和S IN（N）中的信号均匀化。 然后将多个远端和近端信号R IN（N）和S IN（N）存储在相应的数据块中。 随后将所存储的数据块一起处理以确定一组自适应滤波器的一组系数。 针对自适应滤波器组中的每一个以及从能量估计确定的回波的有效区域的位置来计算能量估计。

公开(公告)号：US08279977B2

公开(公告)日：2012-10-02

申请号：US12967925

申请日：2010-12-14

申请人： Jitendra Rayala

发明人： Jitendra Rayala

IPC分类号： H03K9/00 ,  H04L27/00

CPC分类号： H04L25/03891 ,  H04L25/0246 ,  H04L25/03216

摘要： A signal decoder, a method of detecting an RF signal at a MIMO receiver and a MIMO receiver are disclosed herein. In one embodiment, the signal decoder includes: (1) a tree pruner configured to reduce a number of nodes of an MLD tree to expand based on modulation properties of the transmitted radio signals and SE enumeration of at least a portion of the MLD tree and (2) a vector sorter configured to sort multiple rows of child nodes of the MLD tree in parallel.

摘要翻译： 本文公开了信号解码器，MIMO接收机和MIMO接收机的RF信号检测方法。 在一个实施例中，信号解码器包括：（1）树修剪器，其被配置为基于MLD树的至少一部分的传送的无线电信号的调制属性和SE枚举来减少MLD树的节点数量以扩展;以及 （2）向量分类器，其被配置为并行排列MLD树的多行子节点。