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    • 1. 发明授权
    • Write clock pulse generator used for a time base corrector
    • 写时钟脉冲发生器用于时基校正器
    • US4714965A
    • 1987-12-22
    • US807745
    • 1985-12-11
    • Tadaaki YoshinakaTakao InoueKazuo Tomita
    • Tadaaki YoshinakaTakao InoueKazuo Tomita
    • H04N5/956H04N5/95H04N9/81H04N9/86H04N9/89H04N9/896H04N5/78H04N5/85
    • H04N9/896
    • In a time base corrector for correcting time base fluctuations of signals reproduced from a record medium, on which a plurality of time-compressed component signals occurring within one horizontal period in a predetermined sequential order are recorded in response to a clock signal with a predetermined frequency, a write clock pulse generator used in the time base corrector includes a phase shifter for shifting the phase of an incoming write clock signal, whereby the write clock signal having a frequency different from the predetermined frequency is generated in response to a horizontal synchronizing signal, the start time of each of the plurality of reproduced component signals is detected and the shifting amount of the write clock signal by the phase shifter is switched in accordance with the detected output so as to synchronize the write clock signal with the start time of each of the reproduced component signal.
    • 在用于校正从记录介质再现的信号的时基波动的时基校正器中,响应于具有预定频率的时钟信号来记录以预定顺序次序在一个水平周期内出现的多个时间压缩分量信号 在时基校正器中使用的写时钟脉冲发生器包括用于移位输入写时钟信号的相位的移相器,由此响应于水平同步信号产生具有与预定频率不同的频率的写时钟信号, 检测多个再现分量信号中的每一个的开始时间,并且根据检测到的输出切换由移相器写入的时钟信号的移位量,以使写入时钟信号与每个的时钟信号的开始时间同步 再现的分量信号。
    • 4. 发明授权
    • Transmitting data over a communications channel
    • 通过通信通道传输数据
    • US08958499B2
    • 2015-02-17
    • US12997831
    • 2010-07-16
    • Robert W. Heath, Jr.Takao Inoue
    • Robert W. Heath, Jr.Takao Inoue
    • H04L25/49H04L27/00H04L25/03H04L5/00
    • 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。