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    • 4. 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。
    • 6. 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。
    • 8. 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。
    • 9. 发明授权
    • Decoding device and method
    • 解码设备和方法
    • US08166363B2
    • 2012-04-24
    • US12066641
    • 2006-09-07
    • Osamu ShinyaTakashi YokokawaYuji ShinoharaToshiyuki Miyauchi
    • Osamu ShinyaTakashi YokokawaYuji ShinoharaToshiyuki Miyauchi
    • H03M13/00
    • H04L1/0052H03M13/1111H03M13/118H03M13/6577H04L1/0057
    • A decoding device and method for decoding an LDPC code with high accuracy while suppressing an increase of the scale of a device. A check node calculator (181) performs check node calculations including calculations of a nonlinear function φ(x) and its inverse function φ−1(x) of the nonlinear function so as to decode an LDPC code. A variable node calculator (103) performs variable node calculation of a variable node so as to decode the LDPC code. The check node calculator (181) has an LUT which receives a fixed-point quantized value expressing a numerical value with a fixed quantization width and outputs the result of the calculation of the nonlinear function φ(x) as a semi-floating point quantized value which is a bit sequence expressing a numerical value with a quantization width determined by a part of a bit sequence and an LUT which receives a semi-floating point quantized value and outputs the result of the calculation of the inverse function φ−1(x) as a fixed point quantized value. The invention can be applied to e.g., a tuner for receiving a satellite broadcast.
    • 一种用于在抑制设备规模增加的同时高精度地解码LDPC码的解码装置和方法。 校验节点计算器(181)执行包括非线性函数的计算的校验节点计算(x)及其非线性函数的反函数&phgr(-1),以解码LDPC码。 可变节点计算器(103)执行变量节点的可变节点计算,以解码LDPC码。 校验节点计算器(181)具有LUT,其接收表示具有固定量化宽度的数值的定点量化值,并将非线性函数&(x)的计算结果作为半浮点数量化 值,其是表示具有由位序列的一部分确定的量化宽度的数值的位序列和接收半浮点量化值的LUT,并输出反函数的计算结果&phgr; -1( x)作为固定点量化值。 本发明可以应用于例如用于接收卫星广播的调谐器。
    • 10. 发明申请
    • Decoding Device and Method
    • 解码设备和方法
    • US20090304111A1
    • 2009-12-10
    • US12066641
    • 2006-09-07
    • Osamu ShinyaTakashi YokokawaYuji ShinoharaToshiyuki Miyauchi
    • Osamu ShinyaTakashi YokokawaYuji ShinoharaToshiyuki Miyauchi
    • H03K9/00
    • H04L1/0052H03M13/1111H03M13/118H03M13/6577H04L1/0057
    • A decoding device and method for decoding an LDPC code with high accuracy while suppressing an increase of the scale of a device. A check node calculator (181) performs check node calculations including calculations of a nonlinear function φ(x) and its inverse function φ−1(x) of the nonlinear function so as to decode an LDPC code. A variable node calculator (103) performs variable node calculation of a variable node so as to decode the LDPC code. The check node calculator (181) has an LUT which receives a fixed-point quantized value expressing a numerical value with a fixed quantization width and outputs the result of the calculation of the nonlinear function φ(x) as a semi-floating point quantized value which is a bit sequence expressing a numerical value with a quantization width determined by a part of a bit sequence and an LUT which receives a semi-floating point quantized value and outputs the result of the calculation of the inverse function φ−1(x) as a fixed point quantized value. The invention can be applied to e.g., a tuner for receiving a satellite broadcast.
    • 一种用于在抑制设备规模增加的同时高精度地解码LDPC码的解码装置和方法。 校验节点计算器(181)执行包括非线性函数phi(x)及其反函数phi-1(x)的计算的校验节点计算,以解码LDPC码。 可变节点计算器(103)执行变量节点的可变节点计算,以解码LDPC码。 校验节点计算器(181)具有LUT,其接收具有固定量化宽度的表示数值的定点量化值,并将非线性函数phi(x)的计算结果输出为半浮点量化值 其是表示具有由位序列的一部分确定的量化宽度的数值的位序列和接收半浮点量化值的LUT,并输出反函数phi-1(x)的计算结果, 作为固定点量化值。 本发明可以应用于例如用于接收卫星广播的调谐器。