中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.028 seconds)

    METHOD AND COMMUNICATION UNIT FOR USE IN A WIDEBAND WIRELESS COMMUNICATION SYSTEM
    22.
    发明公开
    METHOD AND COMMUNICATION UNIT FOR USE IN A WIDEBAND WIRELESS COMMUNICATION SYSTEM 有权
    方法及通信设备用在宽​​带无线通信系统

    公开(公告)号：EP1774658A4

    公开(公告)日：2009-08-26

    申请号：EP05769485

    申请日：2005-07-07

    Applicant: MOTOROLA INC

    Inventor： EMAMI SHAHRIAR ,  CORRAL CELESTINO A ,  RASOR GREGG E ,  SIBECAS SALVADOR ,  STRATIS GLAFKOS

    IPC: H04B1/00 ,  H04B15/00 ,  H04W72/08

    CPC classification number: H04B17/309 ,  H04W72/085

    Abstract: A technique is used in a wideband wireless communication system (100). In some embodiments available channels are determined (310) and one is selected (315) for assignment to each of a set of communication units based on a relative frequency path loss for each available channel. In some embodiments a communication unit is assigned (505) a channel selected from among available channels and a relative signal loss parameter of the communication unit, such as transmit power, is adjusted (510), based on a relative frequency path loss determined from the channel frequency of the assigned channel. In other embodiments, transmit information is split (705) into a plurality of data streams, each characterized by an associated relative signaling sensitivity, and each data stream is assigned (715) to one of a plurality of the transmit channels, wherein data streams are assigned channels of decreasing channel frequencies in order of decreasing associated relative signaling sensitivities of the data streams.

    SYSTEM AND METHOD TO IMPROVE RF SIMULATIONS
    24.
    发明申请
    SYSTEM AND METHOD TO IMPROVE RF SIMULATIONS 审中-公开
    改进射频模拟的系统和方法

    公开(公告)号：WO2009073369A2

    公开(公告)日：2009-06-11

    申请号：PCT/US2008084110

    申请日：2008-11-20

    Applicant: MOTOROLA INC ,  STRATIS GLAFKOS ,  BIJAMOV ALEXANDER ,  CORRAL CELESTINO ,  SIBECAS SALVADOR

    Inventor： STRATIS GLAFKOS ,  BIJAMOV ALEXANDER ,  CORRAL CELESTINO ,  SIBECAS SALVADOR

    IPC: G01S19/48 ,  H04W16/22 ,  H01Q3/24 ,  H04B7/04 ,  H04W16/28 ,  H04W84/06 ,  H04W84/18

    CPC classification number: H01Q1/242

    Abstract: A system (100) and method (400) for improving Radio Frequency (RF) Antenna Simulation is provided. The method can include determining (402) a proximity of an antenna (250) to a scattering structure (210), determining (410) a switching distance to the scattering structure that establishes when to switch the antenna on (416) and off (418) from a composite antenna pattern to a free space antenna pattern, and predicting RF coverage of the antenna responsive to the switching. The switching distance can be a function of a material type and a surface geometry of the scattering structure and a wavelength of the antenna. The method can also include evaluating a sensory mismatch in the antenna, and using a composite antenna pattern corresponding to the sensory mismatch.

    Abstract translation: 提供了一种用于改善射频（RF）天线模拟的系统（100）和方法（400）。 该方法可以包括确定（402）天线（250）与散射结构（210）的接近度，确定（410）到建立何时切换天线（416）和关闭（416）和关闭（418）的散射结构的切换距离 ）从复合天线图案到自由空间天线方向图，并且响应于切换来预测天线的RF覆盖。 切换距离可以是散射结构的材料类型和表面几何形状以及天线的波长的函数。 该方法还可以包括评估天线中的感觉失配，以及使用对应于感觉不匹配的复合天线方向图。

    METHOD AND APPARATUS OF COMBINING MIXED RESOLUTION DATABASES AND MIXED RADIO FREQUENCY PROPAGATION TECHNIQUES
    25.
    发明申请
    METHOD AND APPARATUS OF COMBINING MIXED RESOLUTION DATABASES AND MIXED RADIO FREQUENCY PROPAGATION TECHNIQUES 审中-公开
    组合分辨率数据库和混合无线电频率传播技术的方法与装置

    公开(公告)号：WO2009073335A2

    公开(公告)日：2009-06-11

    申请号：PCT/US2008083307

    申请日：2008-11-13

    Applicant: MOTOROLA INC ,  CORRAL CELESTINO ,  BIJAMOV ALEXANDER ,  SIBECAS SALVADOR ,  STRATIS GLAFKOS

    Inventor： CORRAL CELESTINO ,  BIJAMOV ALEXANDER ,  SIBECAS SALVADOR ,  STRATIS GLAFKOS

    IPC: G06F15/02 ,  G06F9/00 ,  H04B1/40

    CPC classification number: H04B17/3912

    Abstract: A method (10 or 500) and system (200) for simulating and improving accuracy of empirical propagation models for radio frequency coverage can include a display (210) and a processor (202) coupled to the display. The processor can be operable to input (502 and 504) low-resolution data and high-resolution data, select (506) an area of interest being simulated for empirical propagation models, and classify (508) receivers as belonging to a predetermined type of object. If a receiver in the area of interest is a low resolution object, then normal losses can be applied (510). If a receiver in the area of interest is a high resolution object, then losses specific to the high resolution object can be applied (512). If a receiver is classified as being inside a building, then the processor can further compute (516) a median power for a location of the receiver and add in-building penetration losses.

    Abstract translation: 用于模拟和提高用于射频覆盖的经验传播模型的精度的方法（10或500）和系统（200）可以包括耦合到显示器的显示器（210）和处理器（202）。 处理器可操作以输入（502和504）低分辨率数据和高分辨率数据，选择（506）对于经验传播模型进行模拟的感兴趣区域，并将（508）接收机分类为属于预定类型 目的。 如果感兴趣区域中的接收机是低分辨率对象，则可以应用正常损耗（510）。 如果感兴趣区域中的接收机是高分辨率对象，则可应用高分辨率对象特有的损失（512）。 如果接收机被分类为建筑物内部，则处理器可以进一步计算（516）接收机位置的中间功率并增加建筑物内穿透损耗。

    METHOD AND SYSTEM FOR IDENTIFYING MATERIAL COMPOSITION BASED UPON POLARIZATION TRAJECTORIES
    26.
    发明申请
    METHOD AND SYSTEM FOR IDENTIFYING MATERIAL COMPOSITION BASED UPON POLARIZATION TRAJECTORIES 审中-公开
    基于极化轨迹识别材料组成的方法和系统

    公开(公告)号：WO2007067871A3

    公开(公告)日：2008-04-10

    申请号：PCT/US2006061446

    申请日：2006-12-01

    Applicant: MOTOROLA INC ,  STRATIS GLAFKOS ,  EATON ERIC T ,  SIBECAS SALVADOR

    Inventor： STRATIS GLAFKOS ,  EATON ERIC T ,  SIBECAS SALVADOR

    IPC: G06F19/00

    CPC classification number: G01N23/00

    Abstract: A system and method for determining a most likely material composition of an object (102). At least one respective stored radiation polarization transformation (500) is stored for at least one material composition at a plurality of wavelengths. A transmitted electromagnetic signal (112) with at least one wavelength within the plurality of wavelengths and that has a predetermined transmitted polarization profile is transmitted. The transmitted signal (112) encounters an object (102) and is received as at least one received signal (116, 118). Processing determines a respective received polarization for each of the at least one wavelength of the received signal (116, 118), determines a respective calculated polarization transformation between the transmitted polarization profile and the received polarization of the respective wavelength, for each of the at least one wavelength,. The processing also compares the respective calculated polarization transformations to the at least one respective stored radiation polarization transformations (500) for at least one of the plurality of material compositions and based on those comparisons, estimates a most likely material composition for the object (102).

    Abstract translation: 一种用于确定物体（102）的最可能的材料组成的系统和方法。 对于多个波长的至少一种材料组合物存储至少一个相应的存储的辐射偏振变换（500）。 传输具有多个波长内的至少一个波长并且具有预定的透射偏振曲线的透射电磁信号（112）。 所发送的信号（112）遇到对象（102）并被接收为至少一个接收信号（116,118）。 对于接收信号（116,118）的至少一个波长中的每一个，处理确定相应的接收极化，确定至少为每个波长的所发送的偏振曲线和相应波长的接收偏振之间的相应计算的偏振变换 一个波长。 该处理还将针对多个材料组合物中的至少一个的各个计算的偏振变换与至少一个相应的存储的辐射极化转换（500）进行比较，并且基于这些比较，估计对象（102）的最可能的材料组成， 。

    METHOD AND SYSTEM FOR COMBINED POLARIMETRIC AND COHERENT PROCESSING FOR A WIRELESS SYSTEM
    27.
    发明申请
    METHOD AND SYSTEM FOR COMBINED POLARIMETRIC AND COHERENT PROCESSING FOR A WIRELESS SYSTEM 审中-公开
    用于无线系统的组合极地和相关处理的方法和系统

    公开(公告)号：WO2007027301A3

    公开(公告)日：2007-04-26

    申请号：PCT/US2006027103

    申请日：2006-07-13

    Applicant: MOTOROLA INC ,  SIBECAS SALVADOR ,  EATON ERIC T ,  STRATIS GLAFKOS

    Inventor： SIBECAS SALVADOR ,  EATON ERIC T ,  STRATIS GLAFKOS

    IPC: H01Q15/24

    CPC classification number: H04L5/023 ,  H04B1/7115 ,  H04B1/7117 ,  H04B7/10 ,  H04L27/2647

    Abstract: A combined polarimetric and coherent processing receiver (2300) can include at least one antenna (730 and 740), at least one receiver front end (700 and 704), a multipath processor (702, 706, and 714), a polarimetric signal processor (708), and a coherent processor (712). The multipath processor can be a plurality of correlators (702 and 706) coupled to the receiver front end(s) and can process the desired signal arriving from multiple paths coupled to the receiver. The polarimetric signal processor which can include a plurality of adaptive polarimetric filters (710) can be coupled to the multipath processor and can polarimetrically filter signals that are distinguishable from the desired signal. The coherent processor can be coupled to the polarimetric signal processor and can coherently combine the polarimetric filtered signal. The coherent processor can include time varying complex coefficients (714) and a signal combiner (716).

    Abstract translation: 组合的偏振和相干处理接收器（2300）可以包括至少一个天线（730和740），至少一个接收器前端（700和704），多路径处理器（702,706和714），偏振信号处理器 （708）和相干处理器（712）。 多路径处理器可以是耦合到接收器前端的多个相关器（702和706），并且可以处理从耦合到接收器的多个路径到达的期望信号。 可以包括多个自适应偏振滤光器（710）的偏振信号处理器可以耦合到多路径处理器，并且可以偏振地滤除与期望信号可区分的信号。 相干处理器可以耦合到偏振信号处理器，并且可以相干地组合偏振滤波信号。 相干处理器可以包括时变复系数（714）和信号组合器（716）。

    ADAPTIVE DIVERSITY ANTENNA SYSTEM
    28.
    发明申请
    ADAPTIVE DIVERSITY ANTENNA SYSTEM 审中-公开
    自适应多样性天线系统

    公开(公告)号：WO2005065122B1

    公开(公告)日：2005-12-15

    申请号：PCT/US2004040808

    申请日：2004-12-07

    Applicant: MOTOROLA INC ,  STRATIS GLAFKOS ,  EMRICK RUDY M ,  CORRAL CELESTINO A ,  EMAMI SHAHRIAR ,  SIBECAS SALVADOR

    Inventor： STRATIS GLAFKOS ,  EMRICK RUDY M ,  CORRAL CELESTINO A ,  EMAMI SHAHRIAR ,  SIBECAS SALVADOR

    IPC: H04B7/08 ,  H04B1/06 ,  H04B7/10 ,  H04Q7/20

    CPC classification number: H04B7/0871 ,  H04B7/0874 ,  H04B7/10

    Abstract: An antenna system (205) includes an antenna structure (215), a receiver (220), and an antenna system controller (225). The antenna structure includes an arrangement of antennas (237), a signal combiner (240), and a switching matrix (235). The arrangement of antennas is designed to have a set of antenna element separations that are optimized to provide lowest correlation coefficients of intercepted radio signals for a corresponding set of electromagnetic environment types that vary from a very low density scattering environment to a maximum density scattering environment. The antennas (230), (231), (232), (233), (234) in the antenna arrangement each include at least one element that has a common polarization. There is at least one antenna that is a dual polarized antenna. The antenna system selects an antenna element pair that corresponds to the environment type which it is operating and thereby receives a best combined signal.

    Abstract translation: 天线系统（205）包括天线结构（215），接收器（220）和天线系统控制器（225）。 天线结构包括天线布置（237），信号组合器（240）和开关矩阵（235）。 天线布置被设计成具有一组天线元件间隔，所述天线元件间隔被优化以针对从非常低密度散射环境变化到最大密度散射环境的对应组的电磁环境类型提供截取无线电信号的最低相关系数。 天线装置中的天线（230），（231），（232），（233），（234）各自包括具有共同极化的至少一个元件。 至少有一个天线是双极化天线。 天线系统选择与其正在工作的环境类型相对应的天线元件对，从而接收最佳组合信号。

    POLARIZATION STATE TECHNIQUES FOR WIRELESS COMMUNICATION
    29.
    发明申请
    POLARIZATION STATE TECHNIQUES FOR WIRELESS COMMUNICATION 审中-公开
    用于无线通信的极化状态技术

    公开(公告)号：WO2005025074A2

    公开(公告)日：2005-03-17

    申请号：PCT/US2004025734

    申请日：2004-07-25

    Applicant: MOTOROLA INC ,  SIBECAS SALVADOR ,  CORRAL CELESTINO A ,  EMAMI SHAHRIAR ,  STRATIS GLAFKOS ,  RASOR GREGG

    Inventor： SIBECAS SALVADOR ,  CORRAL CELESTINO A ,  EMAMI SHAHRIAR ,  STRATIS GLAFKOS ,  RASOR GREGG

    IPC: H01Q21/24 ,  H04B20060101 ,  H04B7/10 ,  H04L27/26 ,  H04B

    CPC classification number: H01Q21/24 ,  H04B7/10 ,  H04L27/2602 ,  H04L27/2614

    Abstract: Communication systems include a transmitter that modulates a radio signal transmitted from two differently polarized antennas during a state time in which a wave state of the radio signal conveys information and is based on one or more polarization states selected from a constellation of polarization states comprising at least three polarization states. The communication system includes a receiver that intercepts the radio signal by two differently polarized antennas during the state time, and demodulates the signal. The polarization states may identify user devices or may quantify a portion of the information intended for a user device.

    Abstract translation: 通信系统包括发射机，其在无线电信号的波状态传送信息并且基于从包括至少包括的偏振态的星座中选择的一个或多个极化状态的状态时间期间调制从两个不同极化的天线发射的无线电信号 三极化状态。 该通信系统包括一个接收器，用于在状态时间内通过两个不同极化的天线截取无线电信号，并解调该信号。 极化状态可以识别用户设备或者可以量化用于用户设备的信息的一部分。

Patent Agency Ranking