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    • 53. 发明授权
    • Techniques for pre-distorting transmitted signals for a transmitter device
    • 用于对发射机设备的发射信号进行预失真的技术
    • US08204455B2
    • 2012-06-19
    • US12340518
    • 2008-12-19
    • Robert HardackerKenichi Kawasaki
    • Robert HardackerKenichi Kawasaki
    • H04B1/04
    • H04B1/0475H03F1/3241H04B2001/0425
    • Techniques for sending and receiving signals include pre-distorting signals before transmission across a communication path. The signals are pre-distorted as a function of a distortion on the communication path. In one embodiments, transmitter a broadcasts to receiver b and there is also a transmitter b broadcasting to receiver a. This return channel enables both transmitters a and b to have a priori information regarding the transmission medium and path the signal takes. In this way, the nature of the distortion or interference is known to the transmitter, therefore, it pre-distorts the transmitted signal to compensate for the receiver exceeding its capabilities in recovering signal.
    • 用于发送和接收信号的技术包括在通过通信路径传输之前的预失真信号。 信号作为通信路径上的失真的函数被预失真。 在一个实施例中,发射机a广播到接收机b,还有一个发射机b广播到接收机a。 这个返回信道使得发射机a和b能够具有关于传输介质和信号所采用的路径的先验信息。 以这种方式,发射机已知失真或干扰的性质,因此,它预先歪曲传输的信号,以补偿接收机超过恢复信号的能力。
    • 59. 发明申请
    • System and Method for Transmitting Data Using Quantized Channel Rates
    • 使用量化通道速率传输数据的系统和方法
    • US20100226466A1
    • 2010-09-09
    • US12399837
    • 2009-03-06
    • Robert HardackerRobert A. Unger
    • Robert HardackerRobert A. Unger
    • H04L7/02H04L7/00
    • H04L7/00H04L5/1446H04L25/0262H04L2007/045
    • A quantized channel rate and corresponding rate multiplier is determined on a transmitter-side of a communication system based on a measured minimum required bandwidth. In certain embodiments, the quantized data rate may be an integer multiple of the system's reference clock. The determined rate multiplier is then transmitted to the receiver-side at a default data rate prior to or near the beginning of a data transmission session, such as upon initialization. Prior to transmission, the data stream may be padded with some determined amount of null data such that the actual transmitted data rate is approximately equal to the quantized channel rate, and the receiver-side can readily recover the data clock using its known reference clock and the previously-provided rate multiplier.
    • 基于所测量的最小所需带宽,在通信系统的发射机侧确定量化信道速率和相应的速率乘数。 在某些实施例中,量化数据速率可以是系统参考时钟的整数倍。 然后,确定的速率乘数在诸如初始化之前的数据传输会话开始之前或之后以默认数据速率发送到接收机侧。 在传输之前,可以用某些确定量的空数据填充数据流,使得实际发送的数据速率近似等于量化的信道速率,并且接收机侧可以使用其已知的参考时钟容易地恢复数据时钟, 以前提供的速率倍数。