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公开(公告)号:US09838037B2
公开(公告)日:2017-12-05
申请号:US14782688
申请日:2014-04-21
Applicant: Sony Corporation
Inventor: Yuji Shinohara , Nabil Sven Loghin Muhammad , Lachlan Michael , Yuichi Hirayama , Makiko Yamamoto
IPC: H03M13/00 , H03M13/11 , H03M13/25 , H03M13/27 , H03M13/35 , H04L1/00 , H03M13/29 , H03M13/09 , H03M13/15
CPC classification number: H03M13/118 , H03M13/09 , H03M13/1137 , H03M13/1165 , H03M13/152 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2906 , H03M13/356 , H03M13/611 , H04L1/0057 , H04L1/0065 , H04L1/007 , H04L1/0071 , H04L2001/0093
Abstract: A code bit of an LDPC code in which a code length is 16200 bits and an encoding rate is 8/15 is interchanged with a symbol bit of a symbol corresponding to any of 8 signal points defined by 8PSK. When 3 bits of code bits stored in three units of storages having a storage capacity of 16200/3 bits and read bit by bit from the units of storages are allocated to one symbol, a (#i+1)-th bit from a most significant bit of the 3 bits of code bits is set to a bit b#i, a (#i+1)-th bit from a most significant bit of 3 bits of symbol bits of the one symbol is set to a bit y#i, and a bit b0 is interchanged with a bit y1, a bit b1 is interchanged with a bit y0, and a bit b2 is interchanged with a bit y2.
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公开(公告)号:US09793925B2
公开(公告)日:2017-10-17
申请号:US14782765
申请日:2014-04-21
Applicant: SONY CORPORATION
Inventor: Yuji Shinohara , Nabil Sven Loghin Muhammad , Lachlan Michael , Yuichi Hirayama , Makiko Yamamoto
CPC classification number: H03M13/1148 , H03M13/09 , H03M13/1105 , H03M13/1137 , H03M13/1165 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2906 , H03M13/356 , H03M13/611 , H04L1/0057 , H04L1/0065 , H04L1/007 , H04L1/0071 , H04L2001/0093
Abstract: In a transmitting device, in interchanging to interchange a code bit of an LDPC code in which a code length is 16200 bits and an encoding rate is 8/15 with a symbol bit of a symbol corresponding to any of 8 signal points defined by 8PSK, when 3 bits of code bits stored in three units of storages having a storage capacity of 16200/3 bits and read bit by bit from the units of storages are allocated to one symbol, a bit b0, a bit b1, and a bit b2 are interchanged with a bit y1, a bit y0, and a bit y2, respectively. A position of the interchanged code bit obtained from data transmitted from the transmitting device is returned to an original position. The present technology is applicable to a case of transmitting data using an LDPC code, for example.
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公开(公告)号:US10312940B2
公开(公告)日:2019-06-04
申请号:US15669627
申请日:2017-08-04
Applicant: Sony Corporation
Inventor: Nabil Sven Loghin Muhammad , Yuji Shinohara , Lachlan Michael , Yuichi Hirayama , Makiko Yamamoto
IPC: H03M13/00 , H03M13/11 , H04L27/00 , H04L27/34 , H03M13/25 , H03M13/27 , H03M13/35 , H04L1/00 , H03M13/15 , H03M13/29 , H03M13/09
Abstract: The present technology relates to a data processing apparatus and a data processing method that are able to secure good communication quality in data transmission using an LDPC code. One symbol is mapped to one of 16 signal points prescribed in 16APSK, with code bits of four bits of an LDPC code having a code length of 16200 bits and a code rate of 7/15 as one symbol. 16 signal points prescribed in 16APSK are four signal points on an inner circle and 12 signal points on an outer circle, and a radius ratio of the inner circle and the outer circle is 5.25. The present technology may be applied to, for example, a case of performing data transmission using an LDPC code.
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公开(公告)号:US09859922B2
公开(公告)日:2018-01-02
申请号:US14784185
申请日:2014-04-21
Applicant: SONY CORPORATION
Inventor: Yuji Shinohara , Nabil Sven Loghin Muhammad , Lachlan Michael , Yuichi Hirayama , Makiko Yamamoto
CPC classification number: H03M13/1177 , H03M13/1137 , H03M13/1165 , H03M13/152 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2906 , H03M13/356 , H03M13/616 , H04L1/0041 , H04L1/0057
Abstract: A code bit of an LDPC code in which a code length is 16200 bits and an encoding rate is 7/15 is interchanged with a symbol bit of a symbol corresponding to any of 8 signal points defined by 8PSK. In the interchanging, when 3 bits of code bits stored in three units of storages having a storage capacity of 16200/3 bits and read bit by bit from the units of storages are allocated to one symbol, a (#i +1)-th bit from a most significant bit of the 3 bits of code bits is set to a bit b#i, a (#i +1)-th bit from a most significant bit of 3 bits of symbol bits of the one symbol is set to a bit y#i, and a bit b0, a bit b1, and a bit b2 are interchanged with a bit y1, a bit y0, and a bit y2.
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公开(公告)号:US09806742B2
公开(公告)日:2017-10-31
申请号:US14782542
申请日:2014-04-21
Applicant: Sony Corporation
Inventor: Yuji Shinohara , Nabil Sven Loghin Muhammad , Lachlan Michael , Yuichi Hirayama , Makiko Yamamoto
CPC classification number: H03M13/1108 , H03M13/09 , H03M13/1137 , H03M13/1165 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2906 , H03M13/356 , H03M13/616 , H03M13/6552 , H03M13/6555 , H04L1/0057 , H04L1/0065 , H04L1/007 , H04L1/0071
Abstract: In a transmitting device, in interchanging to interchange a code bit of an LDPC code in which a code length is 16200 bits and an encoding rate is 7/15 with a symbol bit of a symbol corresponding to any of 8 signal points defined by 8PSK, when 3 bits of code bits stored in three units of storages having a storage capacity of 16200/3 bits and read bit by bit from the units of storages are allocated to one symbol, a bit b0, a bit b1, and a bit b2 are interchanged with a bit y1, a bit y0, and a bit y2, respectively. A position of the interchanged code bit obtained from data transmitted from the transmitting device is returned to an original position. The present technology is applicable to a case of transmitting data using an LDPC code, for example.
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