公开(公告)号：US11563522B2

公开(公告)日：2023-01-24

申请号：US17590761

申请日：2022-02-01

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Kazuaki Takahashi

IPC: H04L1/00 ,  H04L1/22 ,  H04L5/00 ,  H04L27/00 ,  H03M13/15 ,  H04L27/36 ,  H04L27/38 ,  H04L27/26

Abstract: 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.

公开(公告)号：US11539378B2

公开(公告)日：2022-12-27

申请号：US17322541

申请日：2021-05-17

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Shutai Okamura

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/15 ,  H04L1/00

Abstract: 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.

公开(公告)号：US11043971B2

公开(公告)日：2021-06-22

申请号：US17029488

申请日：2020-09-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Shutai Okamura

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/15 ,  H04L1/00

Abstract: 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.

公开(公告)号：US10819370B2

公开(公告)日：2020-10-27

申请号：US16245424

申请日：2019-01-11

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Shutai Okamura

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/15 ,  H04L1/00

Abstract: 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.

公开(公告)号：US10454613B2

公开(公告)日：2019-10-22

申请号：US14515002

申请日：2014-10-15

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Shutai Okamura

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/17 ,  H03M13/37 ,  H03M13/11 ,  H03M13/27 ,  H03M13/35 ,  H04L1/08 ,  H04L1/18

Abstract: 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 a information packets, where n satisfies the formula Kmax×(q−1)≤n.

公开(公告)号：US20170366200A1

公开(公告)日：2017-12-21

申请号：US15692679

申请日：2017-08-31

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Shutai Okamura

IPC: H03M13/11 ,  H03M13/00 ,  H03M13/15 ,  H04L1/00

CPC classification number: H03M13/116 ,  H03M13/005 ,  H03M13/1125 ,  H03M13/15 ,  H03M13/616 ,  H03M13/6362 ,  H03M13/6527 ,  H04L1/0041

Abstract: 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.

公开(公告)号：US08954830B2

公开(公告)日：2015-02-10

申请号：US14231087

申请日：2014-03-31

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Shutai Okamura

IPC: H03M13/03 ,  H03M13/11 ,  H03M13/00 ,  H03M13/15

CPC classification number: H03M13/116 ,  H03M13/005 ,  H03M13/1125 ,  H03M13/15 ,  H03M13/616 ,  H03M13/6362 ,  H03M13/6527 ,  H04L1/0041

Abstract: 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.

Abstract translation: 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。