公开(公告)号：US20190393898A1

公开(公告)日：2019-12-26

申请号：US16474568

申请日：2018-02-27

申请人： Sony Semiconductor Solutions Corporation ,  Sony Corporation

发明人： Seiji KOBAYASHI ,  Masanori SATO ,  Nabil LOGHIN ,  Toshihiro FUJIKI ,  Ryoji IKEGAYA ,  Hiroyuki KAMATA ,  Yusuke YONEYAMA ,  Kimiya KATO ,  Akira ENDO ,  Sawako KIRIYAMA ,  Hiroyuki MITA ,  Hideshi MOTOYAMA ,  Hiroshi AOKI ,  Daisuke KAWAKAMI

IPC分类号： H03M13/19 ,  H03M13/11 ,  H04L1/08

摘要： LDPC coding is executed using a check matrix of an LDPC code whose code length is 736 bits and whose code rate is 1/4, and modulation is executed using a repetition unit that has an LDPC code obtained by the LDPC coding, repeatedly arranged therein. The LDPC code includes information bits and parity bits, the check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the parity matrix portion has a stepwise structure, the information matrix portion is indicated by a check matrix initial value table, and the check matrix initial value table is a predetermined table indicating positions of elements of “1” of the information matrix portion for each eight columns. This technique is applicable to, for example, information transmission using the LDPC code.

公开(公告)号：US20180191398A1

公开(公告)日：2018-07-05

申请号：US15740508

申请日：2017-04-25

申请人： Sony Semiconductor Solutions Corporation

发明人： Seiji KOBAYASHI ,  Sachio lIDA ,  Katsuyuki TANAKA ,  Hiroshi AOKI

IPC分类号： H04B1/715 ,  H04B1/16 ,  H04B1/04

CPC分类号： H04B1/715 ,  H04B1/04 ,  H04B1/16 ,  H04B1/69 ,  H04B2001/6912

摘要： An information processing device and method, a transmitting device and method, and a receiving device and method are disclosed for multiplexing transmission signals in the same channel. In one example, transmission signals are generated by performing chirp modulation on data to be transmitted, and the transmission signals are multiplexed by shifting transmission timings of a plurality of transmission signals in a time direction and transmitting the transmission signals. Further, a plurality of chirp-modulated transmission signals which are multiplexed by shifting the transmission timing in the time direction and transmitted from a transmission side are received, and the plurality of received transmission signals are dechirped at timings according to the transmission timings.