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106 条记录 (耗时 0.035 秒)

    Per stream rate control (PSRC) for improving system efficiency in OFDM-MIMO communication systems
    64.
    发明授权
    Per stream rate control (PSRC) for improving system efficiency in OFDM-MIMO communication systems 有权
    每个流速控制（PSRC），用于提高OFDM-MIMO通信系统中的系统效率

    公开(公告)号：US07499393B2

    公开(公告)日：2009-03-03

    申请号：US11189649

    申请日：2005-07-26

    申请人： Fatih Ozluturk

    发明人： Fatih Ozluturk

    IPC分类号： H04J11/00

    CPC分类号： H04L5/006 ,  H04B7/02 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0023 ,  H04L5/0046 ,  H04L27/2608

    摘要： A transmitter splits a user-data stream into a plurality of sub-streams. The transmitter then adaptively selects a modulation scheme and coding rate for each of the sub-streams based on current channel conditions. Next, a plurality of sub-carriers are modulated and encoded with the sub-stream data according to the selected modulation schemes and coding rates. The modulated sub-carriers are each allocated to one or more transmit antennas for transmission. Prior to transmission, a transmission power for each of the sub-carriers is adjusted based on the channel conditions. The adaptive modulation and coding function, the sub-carrier allocation function, and the power control function are jointly controlled to optimize throughput, signal quality, and system efficiency.

    摘要翻译： 发送器将用户数据流分解成多个子流。 然后，发射机基于当前信道条件自适应地选择每个子流的调制方案和编码率。 接下来，根据所选择的调制方案和编码率，利用子流数据对多个子载波进行调制和编码。 调制后的子载波被分配给一个或多个发射天线用于发射。 在发送之前，基于信道条件来调整每个子载波的发送功率。 共同控制自适应调制编码功能，子载波分配功能和功率控制功能，优化吞吐量，信号质量和系统效率。

    Cancellation of pilot and traffic signals
    67.
    发明申请
    Cancellation of pilot and traffic signals 失效
    取消飞行员和交通信号灯

    公开(公告)号：US20060034218A1

    公开(公告)日：2006-02-16

    申请号：US11234768

    申请日：2005-09-23

    申请人： Fatih Ozluturk ,  Nadir Sezgin

    发明人： Fatih Ozluturk ,  Nadir Sezgin

    IPC分类号： H04Q7/00

    CPC分类号： H04B1/7103 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701

    摘要： A method for removing selected signals from a received signal prior to decoding begins by receiving communication signals from a transmitter over a CDMA air interface. The received communication signals are input to a traffic signal cancellation system for canceling unwanted traffic signals, thereby producing an output (O). The received communication signals are input to a pilot signal cancellation system for removing a global pilot signal, thereby producing an output (Oadd). The output (Oadd) of the pilot signal cancellation system is subtracted from the output (O) of the traffic signal cancellation system to provide a cancellation system output.

    摘要翻译： 在解码之前从接收到的信号中去除所选信号的方法开始于通过CDMA空中接口从发射机接收通信信号。 接收到的通信信号被输入到业务信号消除系统以消除不需要的业务信号，从而产生输出（O）。 所接收的通信信号被输入到导频信号消除系统，用于去除全局导频信号，由此产生输出（O）。 从交通信号消除系统的输出（O）中减去导频信号消除系统的输出（O SUB），以提供取消系统输出。

    Wireless communication method and system for forming three-dimensional control channel beams and managing high volume user coverage areas
    68.
    发明申请
    Wireless communication method and system for forming three-dimensional control channel beams and managing high volume user coverage areas 审中-公开
    用于形成三维控制信道波束和管理大容量用户覆盖区域的无线通信方法和系统

    公开(公告)号：US20050272472A1

    公开(公告)日：2005-12-08

    申请号：US11019422

    申请日：2004-12-22

    申请人： Steven Goldberg ,  Fatih Ozluturk ,  Jung-Lin Pan ,  Yingming Tsai

    发明人： Steven Goldberg ,  Fatih Ozluturk ,  Jung-Lin Pan ,  Yingming Tsai

    IPC分类号： H04W16/24 ,  H04W16/28 ,  H04Q7/20

    CPC分类号： H04W16/28 ,  H04W16/24

    摘要： A wireless communication system and method generates and shapes one or more three-dimensional control channel beams for transmitting and receiving signals. Each three-dimensional beam is directed to cover a particular coverage area and beam forming is utilized to adjust bore sight and beam width of the three-dimensional beam in both azimuth and elevation, and the three-dimensional control channel beam is identified. In another embodiment, changes in hot-zones or hot-spots, (i.e., designated high volume user coverage areas), are managed by a network cell base station having at least one antenna. Each of a plurality of wireless transmit/receive units (WTRUs) served by the base station use a formed beam based on one or more beam characteristics. When the coverage area is changed, the base station instructs at least one of the WTRUs to change its beam characteristics such that it forms a return beam concentrated on the antenna of the base station.

    摘要翻译： 无线通信系统和方法产生并形成用于发送和接收信号的一个或多个三维控制信道波束。 每个三维光束被引导以覆盖特定的覆盖区域，并且利用光束成形来调节三维光束在方位角和仰角中的视野和光束宽度，并且识别三维控制信道光束。 在另一个实施例中，热区或热点（即，指定的大容量用户覆盖区域）的变化由具有至少一个天线的网络小区基站管理。 由基站服务的多个无线发射/接收单元（WTRU）中的每一个基于一个或多个波束特性使用形成的波束。 当覆盖区域改变时，基站指示至少一个WTRU改变其波束特性，使得它形成集中在基站的天线上的返回波束。

    Method and apparatus to correct digital image blur due to motion of subject or imaging device
    70.
    发明申请
    Method and apparatus to correct digital image blur due to motion of subject or imaging device 有权
    用于校正由于被摄体或成像装置的运动引起的数字图像模糊的方法和装置

    公开(公告)号：US20050259888A1

    公开(公告)日：2005-11-24

    申请号：US11089081

    申请日：2005-03-24

    申请人： Fatih Ozluturk

    发明人： Fatih Ozluturk

    IPC分类号： G06K9/40 ,  G06K9/64 ,  G06T5/00

    CPC分类号： H04N5/23287 ,  G02B27/646 ,  G06T5/002 ,  G06T5/003 ,  G06T7/20 ,  G06T2207/10004 ,  G06T2207/10016 ,  G06T2207/20024 ,  G06T2207/20201 ,  G06T2207/20212 ,  H04N5/23216 ,  H04N5/23229 ,  H04N5/23248 ,  H04N5/23251 ,  H04N5/23254 ,  H04N5/23258 ,  H04N5/23267 ,  H04N5/23293 ,  H04N5/265

    摘要： Signal processing techniques are applied to digital image data to remove the distortion caused by motion of the camera, or the movement of the subject being photographed, or defective optics, or optical distortion from other sources. When the image is captured, the effect of relative motion between the camera and the subject is that it transforms the true image into a blurred image according to a 2-dimensional transfer function. The 2-dimensional transfer function representing the motion is derived using blind estimation techniques or by using information from sensors that detect the motion. The transfer function is inverted and used to define a corrective filter. The filter is applied to the image and the blur due to the motion is removed, restoring the correct image. Another embodiment uses the transfer function to avoid blur by combining multiple consecutive images taken at a fast shutter speed.

    摘要翻译： 信号处理技术被应用于数字图像数据以消除由相机的运动引起的失真，或被拍摄对象的运动，或缺陷的光学元件或来自其它源的光学失真。 当拍摄图像时，相机和拍摄对象之间的相对运动的效果是根据二维传递函数将真实图像变换成模糊图像。 使用盲估计技术或通过使用检测运动的传感器的信息来导出表示运动的二维传递函数。 传递函数被反转并用于定义校正滤波器。 将滤镜应用于图像，并移除由运动引起的模糊，恢复正确的图像。 另一个实施例使用传递函数来通过组合以快速快门速度拍摄的多个连续图像来避免模糊。