公开(公告)号：US10789165B2

公开(公告)日：2020-09-29

申请号：US15754331

申请日：2016-10-27

Applicant: Saturn Licensing LLC

Inventor： Makiko Yamamoto

IPC: G06F12/00 ,  G06F12/06 ,  G06F7/58 ,  H03M13/27 ,  H04L1/00 ,  H04L27/26

Abstract: The present technique relates to a data processing apparatus, and a data processing method each of which enables a valid address to be more reliably produced in interleave. In a data processing apparatus, a frequency interleaver for carrying out frequency interleave calculates a first bit stream produced by a first pseudo random number generating portion configured to produce a random bit stream, a second bit stream produced by a second pseudo random number generating portion configured to produce a random bit stream, and an additional bit produced by a bit producing portion configured to alternately produce a bit as 0 and a bit as 1. As a result, in producing a write address or a read address including a random bit stream, the bit as 0 and the bit as 1 are alternately repeated as the most, significant bit in the random bit stream. The present technique, for example, can be applied to a frequency interleaver for carrying out frequency interleave.

公开(公告)号：US10707903B2

公开(公告)日：2020-07-07

申请号：US16142867

申请日：2018-09-26

Applicant: Saturn Licensing LLC

Inventor： Ryoji Ikegaya ,  Makiko Yamamoto ,  Yuji Shinohara

IPC: H03M13/27 ,  H03M13/00 ,  H03M13/03 ,  H03M13/11 ,  H03M13/25 ,  H03M13/35 ,  H04L1/00 ,  H03M13/15 ,  H03M13/29

Abstract: The present technology relates to a data processing device and a data processing method, which are capable of securing excellent communication quality in data transmission using an LDPC code. In group-wise interleave, an LDPC code in which a code length N is 64800 bits and an encoding rate r is 7/15, 9/15, 11/15, or 13/15 is interleaved in units of bit groups of 360 bits. In group-wise deinterleave, a sequence of the LDPC code that has undergone the group-wise interleave is restored to an original sequence. For example, the present technology can be applied to a technique of performing data transmission using an LDPC code.

公开(公告)号：US10680650B2

公开(公告)日：2020-06-09

申请号：US16201549

申请日：2018-11-27

Applicant: SATURN LICENSING LLC

Inventor： Ryoji Ikegaya ,  Makiko Yamamoto ,  Yuji Shinohara

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  G06F11/10 ,  H04B10/2507 ,  H04B10/61 ,  H04L1/00

Abstract: The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes. In group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 13/15 is interleaved in a unit of a bit group of 360 bits. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence. The present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

公开(公告)号：US10530389B2

公开(公告)日：2020-01-07

申请号：US15935760

申请日：2018-03-26

Applicant: Saturn Licensing LLC

Inventor： Yuji Shinohara ,  Makiko Yamamoto

IPC: H03M13/11 ,  H03M13/03 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/35 ,  H04L1/00 ,  H03M13/15

Abstract: The present technology relates to a data processing apparatus and a data processing method which enable provision of an LDPC code that achieves good error-rate performance.An LDPC encoding unit performs encoding using an LDPC code having a code length of 64800 bits and a code rate of 18/30, 19/30, 20/30, 21/30, 22/30, or 23/30. The LDPC code includes information bits and parity bits, and a parity check matrix H is composed of an information matrix portion corresponding to the information bits of the LDPC code, and a parity matrix portion corresponding to the parity bits. The information matrix portion of the parity check matrix H is represented by a parity check matrix initial value table that shows positions of elements of 1 in the information matrix portion in units of 360 columns. The present technology may be applied to LDPC encoding and LDPC decoding.

公开(公告)号：US10425112B2

公开(公告)日：2019-09-24

申请号：US15945361

申请日：2018-04-04

Applicant: Saturn Licensing LLC

Inventor： Ryoji Ikegaya ,  Makiko Yamamoto ,  Yuji Shinohara

IPC: H03M13/27 ,  H03M13/00 ,  H03M13/11 ,  H04L1/00 ,  H03M13/25 ,  H04L27/20

Abstract: The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes.In group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 9/15 is interleaved in a unit of a bit group of 360 bits. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence. The present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

公开(公告)号：US10411741B2

公开(公告)日：2019-09-10

申请号：US15993269

申请日：2018-05-30

Applicant: SATURN LICENSING LLC

Inventor： Ryoji Ikegaya ,  Makiko Yamamoto ,  Yuji Shinohara

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H04L1/00 ,  H03M13/15

Abstract: The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes.In group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 11/15 is interleaved in a unit of a bit group of 360 bits. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence. The present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

公开(公告)号：US10320416B2

公开(公告)日：2019-06-11

申请号：US15935951

申请日：2018-03-26

Applicant: SATURN LICENSING LLC

Inventor： Yuji Shinohara ,  Makiko Yamamoto

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/03 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H04L1/00 ,  H03M13/15

Abstract: The present technology relates to a data processing device and a data processing method so that an LDPC code with a good bit error rate is provided.An LDPC encoder encodes by an LDPC code whose code length is 16200 bits and code rate is 8/15. The LDPC code includes information bits and parity bits. A parity check matrix H includes an information matrix part corresponding to the information bits of the LDPC code and a parity matrix part corresponding to the parity bits. The information matrix part of the parity check matrix H is represented by a parity check matrix initial value table that indicates a position of an element 1 of the information matrix part for each 360 columns. The present technology is applicable to a case in which LDPC encoding and LDPC decoding are performed.

公开(公告)号：US10164661B2

公开(公告)日：2018-12-25

申请号：US15122374

申请日：2015-02-24

Applicant: Saturn Licensing LLC

Inventor： Ryoji Ikegaya ,  Makiko Yamamoto ,  Yuji Shinohara

IPC: H03M13/27 ,  H03M13/00 ,  H03M13/03 ,  H03M13/11 ,  H03M13/25 ,  H04L1/00 ,  H03M13/15 ,  H03M13/29

Abstract: The present technology relates to a data processing device and a data processing method, which are capable of securing excellent communication quality in data transmission using an LDPC code. In group-wise interleave, an LDPC code in which a code length N is 64800 bits and an encoding rate r is 7/15, 9/15, 11/15, or 13/15 is interleaved in units of bit groups of 360 bits. In group-wise deinterleave, a sequence of the LDPC code that has undergone the group-wise interleave is restored to an original sequence. For example, the present technology can be applied to a technique of performing data transmission using an LDPC code.