会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 40. 发明授权
    • Antenna array pattern distortion mitigation
    • 天线阵列模式失真减轻
    • US07610025B2
    • 2009-10-27
    • US11182236
    • 2005-07-15
    • Ivan Jesus Fernandez-CorbatonAhmad JalaliErnest T. OzakiHarris Smith SimonSherman A. Gregory
    • Ivan Jesus Fernandez-CorbatonAhmad JalaliErnest T. OzakiHarris Smith SimonSherman A. Gregory
    • H04B1/04
    • H01Q25/00
    • At least one feature provides a way to perform point-to-multipoint transmissions using adaptive or directional antennas while reducing antenna pattern distortion. Generally, rather than transmitting the same waveform to two or more receivers, an information-bearing signal is transformed into different decorrelated waveforms and each decorrelated waveform is transmitted to a different receiver. In one implementation, an information-bearing signal is transformed into two decorrelated signals such that their crosscorrelation, or autocorrelation of the information-bearing signal, is zero or very small. Such decorrelation may be achieved by sending a first signal to a first receiver while sending a second signal, having a radio frequency spectrum that is the spectrally inverted version of the first signal, to a second receiver. In another implementation, a first signal is transmitted to a first receiver and is also transmitted to a second receiver with a time delay.
    • 至少一个特征提供了使用自适应或定向天线执行点对多点传输的方式,同时减少天线模式失真。 通常,不是将相同的波形发送到两个或更多个接收机,而是将信息承载信号变换成不同的去相关波形,并将每个去相关的波形发送到不同的接收机。 在一个实现中,信息承载信号被变换成两个去相关信号,使得其信息载运信号的互相关或自相关为零或非常小。 这种去相关可以通过向第一接收机发送第一信号来实现,同时向第二接收机发送具有作为第一信号的频谱反转版本的射频频谱的第二信号。 在另一实现中,第一信号被发送到第一接收机,并且还以时间延迟被发送到第二接收机。