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    • 71. 发明申请
    • TRANSMITTING DATA OVER A COMMUNICATIONS CHANNEL
    • 传输通信数据
    • US20120014473A1
    • 2012-01-19
    • US12997831
    • 2010-07-16
    • Robert W. Heath, JR.Takao Inoue
    • Robert W. Heath, JR.Takao Inoue
    • H04L27/04
    • H04L25/03961H04L5/0023H04L25/03949
    • Techniques for transmitting data over a communications channel are generally described. A value of a property of an inverse of a channel matrix corresponding to the communications channel may be calculated and compared to a threshold value. If the value of the property a first one of greater than or less than the threshold value, at least one transmit message may be altered using a vector perturbation technique to generate data symbols and the data symbols may be precoded using a channel inversion technique to generate precoded data symbols. If the value of the property is the other of greater than or less than the threshold value, the at least one transmit message may be precoded using a channel inversion technique to generate precoded data symbols.
    • 通常描述通过通信信道发送数据的技术。 可以计算与通信信道相对应的信道矩阵的逆的属性的值,并将其与阈值进行比较。 如果属性的值大于或小于阈值,则可以使用向量扰动技术来改变至少一个发送消息以生成数据符号,并且可以使用信道反演技术对数据符号进行预编码以产生 预编码数据符号。 如果属性的值是大于或小于阈值的另一个,则可以使用信道反转技术对至少一个发送消息进行预编码,以生成预编码的数据符号。
    • 79. 发明授权
    • Amplifier with limiter
    • 带限幅器的放大器
    • US07164774B2
    • 2007-01-16
    • US10243871
    • 2002-09-16
    • Takao Inoue
    • Takao Inoue
    • H03G3/00
    • H03G7/08
    • A sound volume set-point value set by the variable resistor 1 is converted into a sound volume set-point value signal by a sound volume set-point value detecting section. A control signal generating section rectifies an input signal and adds it to a sound volume set-point value signal, thereby generating a control signal less fluctuated, and the amplification factor of amplifying section is adjusted by the control signal. The input signal is amplitude limited by this, to thereby prevent an output sound from being distorted. When the input signal is low in level, the amplitude limiting operation of the amplifier is stopped, to thereby retain a dynamic range of the original signal. Through the fluctuation suppression of the control signal, the unnatural feeling given to the listener when the amplitude limiting operation starts or stops is also lessened.
    • 由可变电阻器1设定的音量设定点值由音量设定值检测部分转换成音量设定点值信号。 控制信号产生部分对输入信号进行整流,并将其加到音量设定点值信号,从而产生较小波动的控制信号,并通过控制信号调节放大部分的放大系数。 输入信号受此限幅,从而防止输出声音失真。 当输入信号电平低时,放大器的幅度限制动作停止,从而保持原始信号的动态范围。 通过控制信号的波动抑制,也可以减小振幅限制动作开始或停止时向收听者发出的不自然的感觉。