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    • 3. 发明授权
    • Receiver, receiving method, program and receiving system
    • 接收机,接收方式,程序和接收系统
    • US08503583B2
    • 2013-08-06
    • US12953832
    • 2010-11-24
    • Takashi YokokawaOsamu ShinyaHitoshi Sakai
    • Takashi YokokawaOsamu ShinyaHitoshi Sakai
    • H04L27/06
    • H04L5/0007H04L1/0052H04L1/0071
    • A receiver that receives an Orthogonal Frequency Division Multiplexing (OFDM) signal obtained by modulating a common packet sequence and data packet sequence. The common packet sequence is made up of packets common to a plurality of streams. The data packet sequence is made up of packets specific to one of the plurality of streams. The receiver sorts the common packet sequence, obtained by demodulating the received OFDM signal, in the time domain, and sorts the data packet sequence, obtained by demodulating the received OFDM signal, in the time domain. The receiver then switches the output for error correction from the one sorting over to the other sorting if, while the one sorting supplies its output to the error correction, the other sorting completes its input of a predetermined unit of information to be processed.
    • 接收器,其接收通过调制公共分组序列和数据分组序列而获得的正交频分复用(OFDM)信号。 公共分组序列由多个流公共的分组组成。 数据分组序列由特定于多个流之一的分组组成。 接收机对在时域中对接收到的OFDM信号进行解调而获得的公共分组序列进行排序,并对在时域中对接收到的OFDM信号进行解调而获得的数据分组序列进行分类。 然后,如果在一个排序将其输出提供给纠错的情况下,接收器将用于纠错的输出从一个排序切换到另一个分类,则另一排序完成其要处理的预定信息单元的输入。
    • 4. 发明授权
    • Decoding apparatus and decoding method
    • 解码装置和解码方法
    • US08086934B2
    • 2011-12-27
    • US11912481
    • 2006-04-20
    • Takashi YokokawaToshiyuki MiyauchiOsamu Shinya
    • Takashi YokokawaToshiyuki MiyauchiOsamu Shinya
    • H03M13/00
    • H03M13/1168H03M13/1114H03M13/1137H03M13/116H03M13/6505H03M13/6566
    • A decoding apparatus and method are capable of decoding LDPC codes with a high degree of precision while preventing the circuit scale of the decoding apparatus from increasing. A computation section carries out a first computation process corresponding to three check-node processes by making use of decoding intermediate results supplied from a decoding intermediate result storage memory by way of a cyclic shift circuit, and stores the result of the first computation process in a decoding intermediate result storage memory. A computation section carries out a second computation process corresponding to six variable-node processes by making use of decoding intermediate results supplied from a decoding intermediate result storage memory by way of a cyclic shift circuit, and stores the decoding intermediate result in the decoding intermediate result storage memory.
    • 解码装置和方法能够以高精度解码LDPC码,同时防止解码装置的电路规模增加。 计算部通过循环移位电路利用从解码中间结果存储存储器提供的解码中间结果,对与三个校验节点处理相对应的第一计算处理进行处理,并将第一计算处理的结果存储在 解码中间结果存储存储器。 计算部通过循环移位电路利用从解码中间结果存储存储器提供的解码中间结果,对与六个可变节点处理相对应的第二计算处理进行解码,并将解码中间结果存储在解码中间结果 存储内存
    • 5. 发明申请
    • RECEIVING APPARATUS AND METHOD AND PROGRAM
    • 接收装置和方法与程序
    • US20090106622A1
    • 2009-04-23
    • US12253347
    • 2008-10-17
    • Takashi YokokawaSatoshi OkadaOsamu Shinya
    • Takashi YokokawaSatoshi OkadaOsamu Shinya
    • H03M13/05G06F11/10
    • H03M13/11H04L1/0052H04L1/0057H04L1/007
    • A receiving apparatus including, an LDPC decoder configured to decode both of the data signal and the transmission control signal, a data signal input buffer arranged before the LDPC decoder and configured to hold the received data signal and a transmission control signal input buffer arranged before the LDPC decoder and configured to hold the received transmission control signal, and a controller configured to select one of the data signal held in the data signal input buffer and the transmission control signal held in the transmission control signal input buffer as a signal subject to decoding and transmit the selected signal to the LDPC decoder to make the LDPC decoder decode the signal subject to decoding.
    • 一种接收装置,包括:LDPC解码器,被配置为解码所述数据信号和所述传输控制信号;数据信号输入缓冲器,布置在所述LDPC解码器之前并被配置为保持所述接收的数据信号;以及传输控制信号输入缓冲器, LDPC解码器,被配置为保持所接收的发送控制信号,以及控制器,被配置为选择保持在数据信号输入缓冲器中的数据信号中的一个和保持在发送控制信号输入缓冲器中的发送控制信号作为经解码的信号;以及 将所选择的信号发送到LDPC解码器,以使LDPC解码器对经过解码的信号进行解码。
    • 8. 发明申请
    • Decoding Apparatus and Decoding Method
    • 解码装置和解码方法
    • US20090217121A1
    • 2009-08-27
    • US11912481
    • 2006-04-20
    • Takashi YokokawaToshiyuki MiyauchiOsamu Shinya
    • Takashi YokokawaToshiyuki MiyauchiOsamu Shinya
    • H03M13/05G06F11/10
    • H03M13/1168H03M13/1114H03M13/1137H03M13/116H03M13/6505H03M13/6566
    • The present invention relates to a decoding apparatus and a decoding method, which are capable of decoding LDPC codes with a high degree of precision while preventing the circuit scale of the decoding apparatus from increasing. A computation section 1102 carries out a first computation process corresponding to three check-node processes by making use of decoding intermediate results D1101 supplied from a decoding intermediate result storage memory 1104 by way of a cyclic shift circuit 1101, and stores the result of the first computation process in a decoding intermediate result storage memory 1103. A computation section 415 carries out a second computation process corresponding to six variable-node processes by making use of decoding intermediate results D414 supplied from a decoding intermediate result storage memory 1103 by way of a cyclic shift circuit, and stores the decoding intermediate result D415 in the decoding intermediate result storage memory 1104. The present invention can be applied to, for example, a tuner for receiving (digital) satellite broadcasts.
    • 解码装置和解码方法技术领域本发明涉及一种能够在防止解码装置的电路规模增大的同时高精度地解码LDPC码的解码装置和解码方法。 计算部分1102通过利用通过循环移位电路1101从解码中间结果存储存储器1104提供的解码中间结果D1101来执行与三个校验节点处理相对应的第一计算处理,并且存储第一 在解码中间结果存储存储器1103中的计算处理。计算部415通过利用从解码中间结果存储存储器1103提供的解码中间结果D414通过循环的方式执行与六个可变节点处理相对应的第二计算处理 并将解码中间结果D415存储在解码中间结果存储存储器1104中。本发明可以应用于例如用于接收(数字)卫星广播的调谐器。
    • 10. 发明授权
    • Decoding device and decoding method
    • 解码设备和解码方法
    • US07657820B2
    • 2010-02-02
    • US11409237
    • 2006-04-24
    • Takashi YokokawaYuji ShinoharaOsamu Shinya
    • Takashi YokokawaYuji ShinoharaOsamu Shinya
    • H03M13/00
    • H03M13/1111H03M13/1131H03M13/1134H03M13/1137H03M13/118H03M13/6577
    • A decoding device for decoding an LDPC (Low Density Parity Check) code. The decoding device may include a first operation unit for performing a check node operation for decoding the LDPC code, the operation including an operation of a nonlinear function and an operation of an inverse function of the nonlinear function; and a second operation unit for performing a variable node operation for decoding the LDPC code. The first operation unit includes a first converting unit for converting a first quantization value assigned to a numerical value into a second quantization value representing a numerical value with a higher precision than the first quantization value, and a second converting unit for converting the second quantization value into the first quantization value.
    • 一种用于解码LDPC(低密度奇偶校验)码的解码装置。 解码装置可以包括用于执行用于对LDPC码进行解码的校验节点操作的第一操作单元,该操作包括非线性函数的操作和非线性函数的反函数的操作; 以及第二操作单元,用于执行用于对LDPC码进行解码的可变节点操作。 第一操作单元包括:第一转换单元,用于将分配给数值的第一量化值转换成表示具有比第一量化值更高的精度的数值的第二量化值;以及第二转换单元,用于将第二量化值 进入第一个量化值。