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    • 4. 发明申请
    • METHOD AND APPARATUS FOR DETERMINING POSITION OF A WIRELESS DEVICE
    • 用于确定无线设备位置的方法和装置
    • US20130172019A1
    • 2013-07-04
    • US13538672
    • 2012-06-29
    • Mohamed YoussefNaser El-SheimyMichel Fattouche
    • Mohamed YoussefNaser El-SheimyMichel Fattouche
    • H04W4/02
    • H04W4/02G01S5/0215G01S5/14H04W64/00
    • A method and apparatus for determining the location of a device capable of receiving/transmitting wireless signals from/to reference stations is provided, for example providing wireless signals in the form of range information to the device; determining a region or area surrounding each reference station, wherein regions intersect to form intersecting spaces; defining the intersecting spaces to delineate a device location search space and determining device locations within the search space; determining combinations of said device locations, and using a distribution analysis test to examine a skewness value of each combination; detecting and selecting the combinations of device positions that result in a minimum skewness value or simply a combination that provides skewness value less than a pre-defined minimum threshold value; and utilizing the detected and selected combinations to determine a refined final position of the device.
    • 提供了一种用于确定能够从/到参考站接收/发送无线信号的设备的位置的方法和装置,例如以设备的范围信息的形式提供无线信号; 确定围绕每个参考站的区域或区域,其中区域相交以形成相交空间; 定义相交空间以描绘设备位置搜索空间并确定搜索空间内的设备位置; 确定所述设备位置的组合,并且使用分布分析测试来检查每个组合的偏度值; 检测和选择导致最小偏度值的装置位置的组合或简单地提供小于预定义的最小阈值的偏度值的组合; 以及利用所检测和选择的组合来确定设备的精细最终位置。
    • 6. 发明授权
    • Methods and apparatus to position a mobile receiver using downlink signals, part I
    • 使用下行链路信号定位移动接收机的方法和装置,第一部分
    • US06208297B1
    • 2001-03-27
    • US09169916
    • 1998-10-09
    • Michel FattoucheRichard Klukas
    • Michel FattoucheRichard Klukas
    • G01S302
    • H04W64/00G01S5/0009G01S5/08G01S5/10G01S5/12G01S5/14G01S2205/008H04B7/18539
    • The invention comprises of methods and apparatus to estimate the position and velocity of a Mobile Receiver (MR) using either the Time Of Arrival (TOA) of signals received by the MR, their Phase Of Arrival (POA), their Strength Of Arrival (SOA), their Frequency Of Arrival (FOA), or a combination thereof, with respect to a reference produced by a Reference Receiver (RR) of known location. In order to solve for the coordinates of the MR, the invention uses either hyperbolic multilateration based on Time Difference Of Arrival (TDOA), or linear multiangulation based on Phase Difference Of Arrival (PDOA), or both. In order to solve for the velocity of the MR, the patent uses FOA based on Frequency Difference Of Arrival (FDOA). An important contribution of this invention is the way the MR receives, processes and combines available signals for location purposes. Another important contribution of this invention is the way the RR receives, processes and combines available signals for reference purposes. Yet another important contribution of the invention is the application of Super-Resolution (SR) techniques at both the MR and the RR to increase the resolution of the estimated TOAs, POAs, SOAs, or FOAs.
    • 本发明包括使用由MR接收到的信号的到达时间(TOA),其到达阶段(POA),其到达强度(SOA)的到达时间(TOA)来估计移动接收机(MR)的位置和速度的方法和装置 ),其到达频率(FOA)或其组合相对于由已知位置的参考接收机(RR)产生的参考。 为了解决MR的坐标,本发明使用基于到达时差(TDOA)的双曲线多边形,或者基于相位差(PDOA)的线性多边形或两者。 为了解决MR的速度,该专利根据到达频率差(FDOA)使用FOA。 本发明的重要贡献是MR接收,处理和组合可用信号用于位置目的的方式。 本发明的另一重要贡献是RR为了参考目的而接收,处理和组合可用信号的方式。 本发明的另一重要贡献是在MR和RR两者中应用超分辨率(SR)技术来增加估计的TOA,POAs,SOAs或FOA的分辨率。
    • 7. 发明授权
    • Method and apparatus for the compression, processing and spectral
resolution of electromagnetic and acoustic signals
    • 用于电磁和声信号的压缩,处理和频谱分辨的方法和装置
    • US5570305A
    • 1996-10-29
    • US173627
    • 1993-12-22
    • Michel FattoucheHatim Zaghloul
    • Michel FattoucheHatim Zaghloul
    • H03H17/02G06F7/00G06F15/00
    • H03H17/02
    • A signal that may be represented by a band limited periodic function m(t) is transformed into its z-domain zeros using characteristics of the signal in the neighbourhood of fades of the signal, namely a bounds of the fades and the depths of the fades. The z-domain zeros are the zeros of the function in the complex plane, and represent local minimums of the function. The z-domain zeros are used to estimate the discrete spectrum of m(t), and the differential phase of m(t) is derived from the envelope of m(t) using the concept of the z-domain zeros. Also, speech is compressed based on the z-domain zeros of a signal m(t) that represents a speech signal, and knowledge of the location of fades is used in interference reduction at single moving antennas by applying a spectral resolution technique during a fade and applying notch filters to the signal to resolve the signal components.
    • 可以由频带限制周期函数m(t)表示的信号使用信号衰落附近的信号特征,即衰落的界限和淡入深度,将其变换为z域的零点 。 z域0是复平面中的函数的零,表示函数的局部最小值。 z域零点用于估计m(t)的离散频谱,m(t)的微分相位使用z域的零点概念从m(t)的包络导出。 此外,基于表示语音信号的信号m(t)的z域0进行语音压缩,并且通过在衰落期间应用光谱分辨率技术在单个移动天线的干扰减少中使用淡入淡出的位置的知识 并对信号应用陷波滤波器来解析信号分量。
    • 9. 发明授权
    • Method and apparatus for multiple access between transceivers in
wireless communications using OFDM spread spectrum
    • 使用OFDM扩频的无线通信收发器之间的多址接入方法和装置
    • US5282222A
    • 1994-01-25
    • US861725
    • 1992-03-31
    • Michel FattoucheHatim Zagloul
    • Michel FattoucheHatim Zagloul
    • H04B1/707H04J13/00H04L5/02H04L25/03H04L27/26H04K1/00
    • H04L5/0007H04B1/707H04J13/00H04L25/03343H04L27/2071H04L27/367H04L5/1461H04L2025/03401H04L2025/03414H04L25/0228H04L27/2628H04L27/2655
    • A method for allowing a number of wireless transceivers to exchange information (data, voice or video) with each other. A first frame of information is multiplexed over a number of wideband frequency bands at a first transceiver, and the information transmitted to a second transceiver. The information is received and processed at the second transceiver. The information is differentially encoded using phase shift keying. In addition, after a pre-selected time interval, the first transceiver may transmit again. During the preselected time interval, the second transceiver may exchange information with another transceiver in a time duplex fashion. The processing of the signal at the second transceiver may include estimating the phase differential of the transmitted signal and pre-distorting the transmitted signal. A transceiver includes an encoder for encoding information, a wideband frequency division multiplexer for multiplexing the information onto wideband frequency voice channels, and a local oscillator for upconverting the multiplexed information. The apparatus may include a processor for applying a Fourier transform to the multiplexed information to bring the information into the time domain for transmission.
    • 一种允许多个无线收发器彼此交换信息(数据,语音或视频)的方法。 信息的第一帧在第一收发器上在多个宽带频带上多路复用,并且将信息发送到第二收发器。 该信息在第二收发器处被接收和处理。 信息使用相移键控进行差分编码。 此外,在预先选择的时间间隔之后,第一收发机可以再次发送。 在预选的时间间隔期间,第二收发器可以以时间双工方式与另一收发器交换信息。 第二收发器处的信号的处理可以包括估计所发送的信号的相位差并且预失真所发送的信号。 收发器包括用于对信息进行编码的编码器,用于将信息复用到宽带频率语音信道上的宽带分频多路复用器,以及用于上变频多路复用信息的本地振荡器。 该装置可以包括用于对多路复用信息进行傅里叶变换以将信息传送到时域以进行传输的处理器。