公开(公告)号：WO2005098618A1

公开(公告)日：2005-10-20

申请号：PCT/US2004/006870

申请日：2004-03-08

Applicant: SANDBRIDGE TECHNOLOGIES, INC.

Inventor： MOUDGILL, Mayan ,  KOTLYAR, Vladimir

IPC: G06F9/45

CPC classification number: G06F8/4441

Abstract: A method of formulating and solving equations that facilitate recognition of full word saturating addition and subtraction The method includes formulating, for each basis addition statement z = x + y or subtraction statement z = x y , data flow equations that describe properties of the program statements being analyzed; and solving the data flow equations. The properties may include: (a) the values BITS of program variables as Boolean functions of the sign bits of x , y and z ; (b) the condition COND under which program statements are executed as Boolean functions of the sign bits of x , y and z ; and (c) the condition REACH of which values of variables reach any given use of z when overflow/underflow/neither occurs.

Abstract translation: 一种制定和求解有助于识别全字饱和加法和减法的方程的方法该方法包括为每个基础加法语句z = x + y或减法语句z = xy制定数据流方程，描述程序语句的属性 分析; 并解决数据流方程。 属性可以包括：（a）程序变量的值BITS作为x，y和z的符号位的布尔函数; （b）作为x，y和z的符号位的布尔函数执行程序语句的条件COND; 和（c）当溢出/下溢/不发生时，变量的值达到任何给定使用z的条件REACH。

公开(公告)号：WO2005053092A1

公开(公告)日：2005-06-09

申请号：PCT/US2004/039342

申请日：2004-11-22

Applicant: SANDBRIDGE TECHNOLOGIES, INC.

Inventor： SURDUCAN, Emanoil ,  IANCU, Daniel ,  GLOSSNER, John

IPC: H01Q1/38

CPC classification number: H01Q9/285 ,  H01Q1/38 ,  H01Q21/30

Abstract: A dipole antenna for a wireless communication device, which includes a first conductive element superimposed on a portion of and separated from a second conductive element by a first dielectric layer. A first conductive via connects the first and second conductive elements through the first dielectric layer. The second conductive element is generally U-shaped. The second conductive element includes a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape. Each strip is dimensioned for a different center frequency λ0. The first conductive element may be L-shaped, and one of the legs of the L-shape being superimposed on one of the legs of the U-shape. The first conductive via connects the other leg of the L-shape to the other leg of the U-shape.

Abstract translation: 一种用于无线通信设备的偶极天线，其包括通过第一介电层叠加在第二导电元件的一部分上并与第二导电元件分离的第一导电元件。 第一导电通孔通过第一介电层连接第一和第二导电元件。 第二导电元件通常为U形。 第二导电元件包括​​从U形腿的相邻端部横向延伸的多个间隔开的导电条。 每个条带的尺寸适用于不同的中心频率λ0。 第一导电元件可以是L形，并且L形的一个腿叠加在U形的一个腿上。 第一导电通孔将L形的另一条腿连接到U形的另一条腿。

公开(公告)号：WO2005013626A2

公开(公告)日：2005-02-10

申请号：PCT/US2004/023665

申请日：2004-07-26

Applicant: SANDBRIDGE TECHNOLOGIES, INC. ,  IANCU, Daniel ,  GLOSSNER, John ,  MOUDGILL, Mayan

Inventor： IANCU, Daniel ,  GLOSSNER, John ,  MOUDGILL, Mayan

IPC: H04Q

CPC classification number: H04B1/7115 ,  H04B1/7107 ,  H04B1/712 ,  H04L25/0202

Abstract: A method of extracting data from a received signal including multi-path interference in a rake receiver. The method includes sampling and filtering the received signal; estimating a time delay (a) between paths for the filtered samples ψ(τ); and estimating channel complex coefficient (b) for the filtered samples ψ(τ). Transmitted data x(τ 1 ) is extracted from the filtered samples ψ(τ) for each path l by solutions of simultaneous equations of the following filtered samples ψ(τ) equation (Formula I) wherein k is a particular path, N p is the number of visible paths, (c) is a a double convolution matrix of the filtering process and (d) is the pseudo inverse, A ss (τ l ) is the product of spreading and scrambling matrices and (e) is the inverse, and (f) is noise.

Abstract translation: 一种从包含多径干扰的接收信号中提取数据的方法。 该方法包括对接收到的信号进行采样和滤波; 估计滤波样本的路径之间的时间延迟（a）psi（τ）; 并估计滤波样本psi（τ）的信道复数系数（b）。 通过以下过滤采样的联立方程式（τ）方程式（式I）的解的解，从每个路径l的滤波样本psi（τ）中提取发射数据x（τ1），其中k是特定路径，N p是数 （c）是滤波过程的双卷积矩阵，（d）是伪逆，Ass（taul）是扩频和加扰矩阵的乘积，（e）是逆的，（f）是 噪声。

公开(公告)号：WO2005011137A1

公开(公告)日：2005-02-03

申请号：PCT/US2004/019727

申请日：2004-06-22

Applicant: SANDBRIDGE TECHNOLOGIES, INC.

Inventor： IANCU, Daniel ,  NACER, Gary ,  STANLEY, Stuart, G.

IPC: H04B1/40

CPC classification number: H04B1/005 ,  H04B1/406

Abstract: A radio including a first channel for receiving signals at a first frequency and a second channel for receiving and transmitting signals at a second frequency. A multiplexer connects the first and second channels through an A/D and D/A converter to a digital signal processor. An oscillator is connected to and provides a common sampling frequency to the A/D and D/A converters. The digital signal processor controls the multiplexer and modifies the received digital signals to accommodate for the different carrier frequencies of the channels using the common sampling rate. A frequency synthesizer is connected to the oscillator and provides different frequency signals for the channels. A third channel may be provided for receiving and transmitting signals at a third frequency and is also connected to the multiplexer. The processor is capable of performing communication protocols for at least two of the channels simultaneously.

Abstract translation: 一种无线电设备，包括用于以第一频率接收信号的第一信道和用于以第二频率接收和发送信号的第二信道。 多路复用器通过A / D和D / A转换器将第一和第二通道连接到数字信号处理器。 振荡器连接到A / D和D / A转换器并提供公共采样频率。 数字信号处理器控制多路复用器，并使用公共采样率修改接收到的数字信号以适应信道的不同载波频率。 频率合成器连接到振荡器，并为通道提供不同的频率信号。 可以提供第三通道用于以第三频率接收和发送信号，并且还连接到多路复用器。 处理器能够同时对至少两个通道执行通信协议。

公开(公告)号：WO2005008274A1

公开(公告)日：2005-01-27

申请号：PCT/US2004/021656

申请日：2004-07-07

Applicant: SANDBRIDGE TECHNOLOGIES, INC.

Inventor： IANCU, Daniel ,  GLOSSNER, John, C. ,  HOKENEK, Erdem ,  MOUDGILL, Mayan ,  KOTLYAR, Vladimir

IPC: G01S1/00

CPC classification number: G01S19/37 ,  G01S19/29 ,  Y10S367/904

Abstract: A receiver includes a controller which receives A/D sampled input signals and shifts the sampled digital signal to compensate for Doppler effect in the input signal prior to demodulation. The controller compensates for a Doppler increased frequency by shifting the sampled digital signal so as to skip a sample period every n samples. This may be achieved by decreasing a cycle of m samples by one sample period every n samples. The controller compensates for a Doppler decreased frequency by shifting the sampled digital signal so as to add a sample period every n samples. This may be achieved by repeating a sample every n samples to shift the sampled digital signal. The compensation is performed in software on a multi-threaded processor.

Abstract translation: 接收机包括控制器，其接收A / D采样输入信号并移位采样的数字信号以补偿在解调之前的输入信号中的多普勒效应。 控制器通过移位采样的数字信号来补偿多普勒增加的频率，以便每n个样本跳过采样周期。 这可以通过每n个样本减少一个采样周期的m个采样来实现。 控制器通过移位采样的数字信号来补偿多普勒降低的频率，以便每n个样本添加采样周期。 这可以通过每n个样本重复样本来实现，以移位采样的数字信号。 补偿在多线程处理器的软件中执行。