Methods and apparatus for generating and communicating wireless signals having pilot signals with variable pilot signal parameters
    1.
    发明授权
    Methods and apparatus for generating and communicating wireless signals having pilot signals with variable pilot signal parameters 有权
    用于生成和传送具有可变导频信号参数的具有导频信号的无线信号的方法和装置

    公开(公告)号:US08098713B2

    公开(公告)日:2012-01-17

    申请号:US12102677

    申请日:2008-04-14

    IPC分类号: H04B1/00

    摘要: An embodiment for wirelessly communicating a signal includes a transmitter generating and transmitting a wireless signal over a wireless communication channel. The wireless signal includes a guard band, data represented within a plurality of data-bearing subcarriers, and a plurality of pilot signals represented within a plurality of pilot subcarriers. In an embodiment, the plurality of pilot signals have variable pilot signal parameters selected from a group of parameters that includes pilot power and pilot spacing with respect to adjacent pilots. An embodiment further includes a receiver receiving a channel-affected version of the wireless signal, and producing a corrected signal by applying corrections to the received signal based on estimated channel perturbations within the received signal, where the estimated channel perturbations are determined based on the plurality of pilot signals. The receiver also produces an output data symbol from the corrected signal.

    摘要翻译: 用于无线地传送信号的实施例包括通过无线通信信道生成和发送无线信号的发射机。 无线信号包括保护频带,在多个承载载波子载波内表示的数据,以及在多个导频子载波内表示的多个导频信号。 在一个实施例中,多个导频信号具有从包括相对于相邻导频的导频功率和导频间隔的一组参数中选择的可变导频信号参数。 实施例还包括接收无线信号的信道受影响版本的接收机,并且基于接收信号内估计的信道扰动对接收到的信号进行校正来产生校正信号,其中估计的信道扰动基于多个 的导频信号。 接收机还从校正信号产生输出数据符号。

    Mop Wringer Assembly
    2.
    发明公开

    公开(公告)号:US20240298866A1

    公开(公告)日:2024-09-12

    申请号:US18117707

    申请日:2023-03-06

    申请人: Kelly Anderson

    发明人: Kelly Anderson

    IPC分类号: A47L13/59

    CPC分类号: A47L13/59

    摘要: A mop wringer assembly for enhancing stability of a bucket during mopping includes a mop wringer that is positionable on a bucket for having a mop positioned therein. The mop wringer has a box portion to receive the mop. The mop wringer includes a squeezing unit that is movably integrated into the box portion. The squeezing unit includes a handle wherein the handle that extends laterally across the box portion. In this way the bucket is inhibited from tipping backwards from weight of the handle to inhibit water in the bucket from being spilled.

    METHODS AND APPARATUS FOR GENERATING AND COMMUNICATING WIRELESS SIGNALS HAVING PILOT SIGNALS WITH VARIABLE PILOT SIGNAL PARAMETERS
    6.
    发明申请
    METHODS AND APPARATUS FOR GENERATING AND COMMUNICATING WIRELESS SIGNALS HAVING PILOT SIGNALS WITH VARIABLE PILOT SIGNAL PARAMETERS 有权
    用于生成和传播具有可变引导信号参数的引导信号的无线信号的方法和装置

    公开(公告)号:US20090052561A1

    公开(公告)日:2009-02-26

    申请号:US12102677

    申请日:2008-04-14

    IPC分类号: H04L27/28 H04L27/00

    摘要: An embodiment for wirelessly communicating a signal includes a transmitter generating and transmitting a wireless signal over a wireless communication channel. The wireless signal includes a guard band, data represented within a plurality of data-bearing subcarriers, and a plurality of pilot signals represented within a plurality of pilot subcarriers. In an embodiment, the plurality of pilot signals have variable pilot signal parameters selected from a group of parameters that includes pilot power and pilot spacing with respect to adjacent pilots. An embodiment further includes a receiver receiving a channel-affected version of the wireless signal, and producing a corrected signal by applying corrections to the received signal based on estimated channel perturbations within the received signal, where the estimated channel perturbations are determined based on the plurality of pilot signals. The receiver also produces an output data symbol from the corrected signal.

    摘要翻译: 用于无线地传送信号的实施例包括通过无线通信信道生成和发送无线信号的发射机。 无线信号包括保护频带,在多个承载载波子载波内表示的数据,以及在多个导频子载波内表示的多个导频信号。 在一个实施例中,多个导频信号具有从包括相对于相邻导频的导频功率和导频间隔的一组参数中选择的可变导频信号参数。 实施例还包括接收无线信号的信道受影响版本的接收机,并且基于接收信号内估计的信道扰动对接收到的信号进行校正来产生校正信号,其中估计的信道扰动基于多个 的导频信号。 接收机还从校正信号产生输出数据符号。