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    • 1. 发明授权
    • SISO decoder for a block code
    • SISO解码器用于块代码
    • US08483325B2
    • 2013-07-09
    • US12929434
    • 2011-01-25
    • Chun-Chieh Tseng
    • Chun-Chieh Tseng
    • H04L27/06
    • H03M13/3784H03M13/1102H03M13/21H03M13/2906H03M13/451
    • A soft-in-soft-out (SISO) decoder for a general block code includes a source bit generator which generates k guessed source bits; a channel encoder which maps the k guessed source bits to an n-bit channel codeword; a QAM symbol mapper which generates a locally generated symbol sequence comprising m consecutive QAM symbols based on the n-bit channel codeword; a correlator which receives a symbol sequence, a channel state information sequence, and the locally generated symbol sequence to calculate a correlation associated with the received symbol sequence based on the received symbol sequence, the channel state information sequence, and the locally generated symbol sequence; and a log-likelihood ratio calculator which is connected to the source bit generator and the correlator to thereby calculate the required log-likelihood ratios associated with all coded bits corresponding to the received symbol sequence.
    • 用于通用块码的软进软(SISO)解码器包括产生k个猜测源比特的源比特发生器; 将k个猜测的源比特映射到n比特信道码字的信道编码器; QAM符号映射器,其基于所述n位信道码字生成包括m个连续QAM符号的本地生成的符号序列; 相关器,其接收符号序列,信道状态信息序列和本地生成的符号序列,以基于接收的符号序列,信道状态信息序列和本地产生的符号序列来计算与接收到的符号序列相关联的相关性; 以及对数似然比计算器,其连接到源比特发生器和相关器,从而计算与对应于所接收的符号序列的所有编码比特相关联的所需对数似然比。
    • 6. 发明申请
    • DTMB-based control system and receiving system having the same
    • 基于DTMB的控制系统和具有相同功能的接收系统
    • US20090296800A1
    • 2009-12-03
    • US12453629
    • 2009-05-18
    • Chun-Chieh TsengWei-Cheng Pu
    • Chun-Chieh TsengWei-Cheng Pu
    • H04L27/28H04L27/01
    • H04L27/2647H04L27/2666
    • A DTMB-based control system includes a carrier mode detector, a TPS decoder, a first latch, a second latch, and a latch controller. The carrier mode detector receives a number of NTPS and NCS of input signals to thereby produce an amplitude sign signal and a carrier sign signal for accordingly determining a carrier mode to be multi- or single-carrier mode. The TPS decoder receives the NTPS input signals and accordingly determines a codeword index signal. The first latch locks the amplitude sign signal and the carrier sign signal. The second latch locks the codeword index signal. The latch controller receives a frame number and drives the first latch to lock the amplitude sign signal and the carrier sign signal or drives the second latch to lock the codeword index signal.
    • 基于DTMB的控制系统包括载波模式检测器,TPS解码器,第一锁存器,第二锁存器和锁存器控制器。 载波模式检测器接收多个输入信号的NTPS和NCS,从而产生振幅符号信号和载波信号,用于相应地将载波模式确定为多载波模式或单载波模式。 TPS解码器接收NTPS输入信号,因此确定码字索引信号。 第一个锁存器锁定振幅符号信号和载波信号。 第二个锁存器锁定码字索引信号。 闩锁控制器接收帧号并驱动第一锁存器锁定振幅符号信号和载波信号,或驱动第二锁存器锁定码字索引信号。