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    • 2. 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。
    • 5. 发明授权
    • Reception apparatus, reception method, program, and reception system
    • 接收装置,接收方法,程序和接收系统
    • US08553809B2
    • 2013-10-08
    • US12953862
    • 2010-11-24
    • Osamu ShinyaTakashi Horiguchi
    • Osamu ShinyaTakashi Horiguchi
    • H04L27/06
    • H04L27/2647
    • A reception apparatus is disclosed which includes: a reception section configured to receive an orthogonal frequency division multiplexing signal known as an OFDM signal formed by modulating common packet sequences and data packet sequences, the common packet sequences being made up of packets common to a plurality of streams, the data packet sequences being constituted by packets unique to each of the plurality of streams; an acquisition section configured to acquire decoding information for decoding the original streams from the common packet sequences and the data packet sequences obtained by demodulating the received OFDM signal; and a search section configured to search for the common packet sequence needed to decode the original streams from the designated data packet sequence on the basis of the acquired decoding information.
    • 公开了一种接收装置,包括:接收部,被配置为接收被称为OFDM信号的正交频分复用信号,所述正交频分复用信号是通过调制公共分组序列和数据分组序列而形成的,所述公共分组序列由多个 流,所述数据分组序列由对于所述多个流中的每一个流唯一的分组构成; 获取部,被配置为从公共分组序列获取解码原始流的解码信息和通过解调所接收的OFDM信号而获得的数据分组序列; 以及搜索部,被配置为基于所获取的解码信息,从指定的数据分组序列中搜索解码原始流所需的公共分组序列。
    • 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
    • Receiving apparatus, receiving method, computer program, and receiving system
    • 接收装置,接收方法,计算机程序和接收系统
    • US08375268B2
    • 2013-02-12
    • US12888071
    • 2010-09-22
    • Osamu ShinyaTakashi YokokawaNaoki Yoshimochi
    • Osamu ShinyaTakashi YokokawaNaoki Yoshimochi
    • H03M13/00
    • H04L1/005H03M13/1102H03M13/152H03M13/2906H03M13/6552H04L1/0057
    • A receiving apparatus includes: a first decoding means for performing, every time frame data in which an inner code and an outer code are used as error correction codes is transmitted thereto, decoding processing employing the inner code and outputting decoded data; a storing means for storing the decoded data; a second decoding means for applying decoding processing employing the outer code to the decoded data; and a control means for controlling storage and output of the decoded data in and from the storing means to suspend, while the control means causes the storing means to output first decoded data as the decoded data of a decoding result of first frame data to the second decoding means, when the first decoding means starts output of second decoded data as the decoded data of a decoding result of second frame data following the first frame data, the output of the first decoded data to the second decoding means and cause the storing means to store the second decoded data and, when the storage of the second decoded data ends, cause the storing means to resume the output of the first decoded data to the second decoding means.
    • 一种接收装置,包括:第一解码装置,用于在其中发送使用内部码和外部码作为纠错码的每个时间帧数据,使用内部码来解码处理并输出解码数据; 存储装置,用于存储解码数据; 第二解码装置,用于将采用外部码的解码处理应用于解码数据; 以及控制装置,用于在所述存储装置使所述存储装置将所述第一解码数据的解码数据作为所述第一帧数据的解码结果的解码数据输出到所述第二帧数据的同时, 解码装置,当第一解码装置开始输出第二解码数据作为第一帧数据之后的第二帧数据的解码结果的解码数据时,将第一解码数据输出到第二解码装置,并使存储装置 存储第二解码数据,并且当第二解码数据的存储结束时,使存储装置恢复第一解码数据的输出到第二解码装置。