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公开(公告)号：US11848683B2
公开(公告)日：2023-12-19
申请号：US18058599
申请日：2022-11-23
发明人： Yutaka Murakami , Shutai Okamura
CPC分类号： H03M13/116 , H03M13/1125 , H03M13/15 , H03M13/616 , H03M13/6362 , H03M13/6527 , H04L1/0041
摘要： Disclosed are an encoder, a transmission device, and an encoding method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block encoding is used. A puncture pattern setting unit (620) searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) (630) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code.
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公开(公告)号：US11063693B2
公开(公告)日：2021-07-13
申请号：US16561308
申请日：2019-09-05
发明人： Yutaka Murakami , Shutai Okamura
IPC分类号： H04L1/00 , H03M13/11 , H03M13/00 , H03M13/27 , H03M13/35 , H04L1/18 , H03M13/37 , H04L1/08 , H03M13/17
摘要： A loss correction encoding device having an improved capability of loss correction using LDPC-CC includes a rearranging unit that rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a check polynomial of the loss correction code used in a loss correction encoding unit. Specifically, the rearranging unit rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit distributes the information data to information blocks from n information packets, where n satisfies the formula Kmax×(q−1)≤n.
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公开(公告)号：US10224963B2
公开(公告)日：2019-03-05
申请号：US15692679
申请日：2017-08-31
发明人： Yutaka Murakami , Shutai Okamura
摘要： Disclosed are an encoder, a transmitting device, a coding method and a transmission method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block coding is used. A puncture pattern setting unit searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code.
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公开(公告)号：US09787325B2
公开(公告)日：2017-10-10
申请号：US14743591
申请日：2015-06-18
发明人： Yutaka Murakami , Shutai Okamura
CPC分类号： H03M13/116 , H03M13/005 , H03M13/1125 , H03M13/15 , H03M13/616 , H03M13/6362 , H03M13/6527 , H04L1/0041
摘要： Disclosed are an encoder, a transmitting device, a coding method and a transmission method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block coding is used. A puncture pattern setting unit searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code.
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5.发明授权Transmission signal generating apparatus and method, and reception data generating apparatus and method 有权发送信号生成装置和方法以及接收数据生成装置和方法公开(公告)号：US09374195B2
公开(公告)日：2016-06-21
申请号：US14678389
申请日：2015-04-03
IPC分类号： H03M13/00 , G06F11/00 , H04L1/00 , H03M13/25 , H03M13/27 , H03M13/13 , H03M13/29 , H04L1/06 , H04L5/00
CPC分类号： H04L1/0041 , H03M13/13 , H03M13/255 , H03M13/2721 , H03M13/2909 , H04L1/0003 , H04L1/0057 , H04L1/0071 , H04L1/0656 , H04L5/0023
摘要： A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.
摘要翻译： 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。
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6.发明申请公开(公告)号：US20150113362A1
公开(公告)日：2015-04-23
申请号：US14584579
申请日：2014-12-29
发明人： Yutaka MURAKAMI , Shutai Okamura
CPC分类号： H03M13/116 , H03M13/005 , H03M13/1125 , H03M13/15 , H03M13/616 , H03M13/6362 , H03M13/6527 , H04L1/0041
摘要： Disclosed are an encoder, a transmitting device, a coding method and a transmission method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block coding is used. A puncture pattern setting unit searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code.
摘要翻译： 公开了一种在使用QC-LDPC或类似块编码的同时提高接收质量的编码器，发送装置，编码方法和传输方法，其中发送量减少并且抑制了传输效率的劣化。 穿刺图案设置单元针对形成QC-LDPC码的校验矩阵（H）的子块矩阵的列数的每个整数倍或每个除数的列数的每个整数倍搜索穿孔图案，并且 穿刺单元（数据缩小单元）对形成QC-LDPC码的校验矩阵的子块矩阵的列数的每个整数倍的每个整数倍或每个除数的每个整数倍切换穿孔图案。
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公开(公告)号：US11637626B2
公开(公告)日：2023-04-25
申请号：US17714286
申请日：2022-04-06
发明人： Mikihiro Ouchi , Tomohiro Kimura , Takayuki Sotoyama , Naoki Adachi , Naoya Shibaike , Shutai Okamura
摘要： A signal processing device includes: a transmission path estimator that estimates a first transmission path characteristic of a transmission signal using a vertical signal out of vertical and horizontal signals resulting from being received by a vertical polarization antenna and a horizontal polarization antenna; a transmission path estimator that estimates a second transmission path characteristic of the transmission signal using the horizontal signal; a weight calculator that calculates a first weight for the vertical signal and a second weight for the horizontal signal, using the first transmission path characteristic and the second transmission path characteristic; and a weighting applier that applies weighted summation to the vertical signal and the horizontal signal using the first weight and the second weight.
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公开(公告)号：US11277226B2
公开(公告)日：2022-03-15
申请号：US16859731
申请日：2020-04-27
摘要： A transmitter apparatus wherein a simple structure is used to successfully suppress the degradation of error rate performance that otherwise would be caused by fading or the like. There are included encoding parts that encode transport data; a mapping part that performs such a mapping that encoded data sequentially formed by the encoding parts are not successively included in the same symbol, thereby forming data symbols; and a symbol interleaver that interleaves the data symbols. In this way, a low computational complexity can be used to perform an interleaving process equivalent to a bit interleaving process to effectively improve the reception quality at a receiving end.
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公开(公告)号：US10680752B2
公开(公告)日：2020-06-09
申请号：US15621752
申请日：2017-06-13
摘要： A transmitter apparatus wherein a simple structure is used to successfully suppress the degradation of error rate performance that otherwise would be caused by fading or the like. There are included encoding parts that encode transport data; a mapping part that performs such a mapping that encoded data sequentially formed by the encoding parts are not successively included in the same symbol, thereby forming data symbols; and a symbol interleaver that interleaves the data symbols. In this way, a low computational complexity can be used to perform an interleaving process equivalent to a bit interleaving process to effectively improve the reception quality at a receiving end.
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公开(公告)号：US12101182B2
公开(公告)日：2024-09-24
申请号：US18350635
申请日：2023-07-11
发明人： Yutaka Murakami , Shutai Okamura
IPC分类号： H04L1/00 , H03M13/00 , H03M13/11 , H03M13/17 , H03M13/27 , H03M13/35 , H03M13/37 , H04L1/08 , H04L1/18 , H04L1/1812 , H04L1/1867
CPC分类号： H04L1/0041 , H03M13/1154 , H03M13/17 , H03M13/2703 , H03M13/2707 , H03M13/353 , H03M13/356 , H03M13/373 , H03M13/6306 , H03M13/6356 , H04L1/0045 , H04L1/0057 , H04L1/08 , H04L1/1819 , H04L1/1877 , H03M13/3761
摘要： A loss correction encoding device having an improved capability of loss correction using LDPC-CC includes a rearranging unit that rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a check polynomial of the loss correction code used in a loss correction encoding unit. Specifically, the rearranging unit rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit distributes the information data to information blocks from n information packets, where n satisfies the formula Kmax×(q−1)≤n.
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