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
    • 2. 发明授权
    • Error correction encoding method and apparatus, and error correction decoding method and apparatus
    • 纠错编码方法和装置,以及纠错解码方法和装置
    • US06912684B2
    • 2005-06-28
    • US10097347
    • 2002-03-15
    • Yoshikuni MiyataHachiro FujitaTakahiko NakamuraHideo Yoshida
    • Yoshikuni MiyataHachiro FujitaTakahiko NakamuraHideo Yoshida
    • G06F11/10H03M13/23H03M13/29H03M13/00
    • H03M13/2987H03M13/2957H03M13/2963H03M13/2972H03M13/2981H03M13/3776
    • An error correction encoding method and apparatus, and an error correction decoding method and apparatus are provided without requiring transmission of tail bits. A turbo encoding step (ST41-ST45) and a transmission termination processing step (ST46→ST44-ST47) are included. In the turbo encoding step, a transmission information bit sequence is divided into a plurality of frames. Registers in each recursive systematic convolutional encoder are initialized before turbo encoding of a first frame. After turbo encoding of the first frame is carried out, a second frame and following frames are continuously subjected to turbo encoding without initializing the registers in each recursive systematic convolutional encoder before the turbo encoding of the second frame and following frames. In a transmission termination processing step, tail bits for initializing the registers in each recursive systematic convolutional encoder are calculated only after a final frame has been subjected to turbo encoding.
    • 提供纠错编码方法和装置以及纠错解码方法和装置,而不需要传输尾比特。 包括turbo编码步骤(ST 41 -ST 45)和发送终止处理步骤(ST 46-> ST 44 -ST 47)。 在turbo编码步骤中,发送信息比特序列被分成多个帧。 每个递归系统卷积编码器中的寄存器在第一帧的turbo编码之前被初始化。 在执行第一帧的turbo编码之后,在第二帧和后续帧的turbo编码之前,第二帧和后续帧被连续地进行turbo编码,而不在每个递归系统卷积编码器中初始化寄存器。 在传输终止处理步骤中,仅在最后一帧已进行turbo编码之后才计算用于初始化每个递归系统卷积编码器中的寄存器的尾比特。
    • 9. 发明授权
    • Turbo error-correcting decoder and turbo error-correcting decoding method
    • Turbo纠错解码器和turbo纠错解码方法
    • US06625778B1
    • 2003-09-23
    • US09654067
    • 2000-09-01
    • Takahiko NakamuraHachiro FujitaHideo Yoshida
    • Takahiko NakamuraHachiro FujitaHideo Yoshida
    • H03M1300
    • H03M13/658H03M13/2957H03M13/2984
    • In a conventional turbo error-correcting decoder, the soft-decision information is corrected by using an average value (A) and a variance value (&sgr;2) of reliability of received bits. From the reliability-corrected soft-decision information, the hard-decision information is obtained. This process of calculation is complex, giving rise to a problem of reduced processing speed and complicated circuit. To deal with this problem, an average value of reliability of received information bits is determined and then a ratio between the average value and the soft-decision information is also determined. This ratio is converted by the conversion table into the reliability-corrected soft-decision information, from which the hard-decision information is obtained.
    • 在传统的turbo纠错解码器中,通过使用接收比特的可靠性的平均值(A)和方差值(sigma <2>)来校正软判决信息。 从可靠性校正的软判决信息中,获得硬决策信息。 这个计算过程很复杂,导致处理速度降低和电路复杂的问题。 为了解决这个问题,确定接收信息比特的可靠性的平均值,然后确定平均值和软判决信息之间的比率。 该比率由转换表转换为可靠性校正的软判决信息,从中获得硬决策信息。