公开(公告)号：WO2003103152A3

公开(公告)日：2003-12-11

申请号：PCT/IB2003/002075

申请日：2003-05-15

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  CHOULY, Antoine ,  POTHIER, Olivier ,  PISCHELLA, Mylène

Inventor： CHOULY, Antoine ,  POTHIER, Olivier ,  PISCHELLA, Mylène

IPC: H03M13/45

Abstract: The invention relates to digital transmission and recording systems. It particularly relates to a receiver for receiving a sequence of encoded data produced by a data source from an information sequence and encoded by an encoder, the received encoded data sequence possibly comprising errors, the receiver comprising decoding means for retrieving the information sequence from the received encoded data sequence. The decoding means comprises: - first soft-input decoding means using a first error correction algorithm for producing a first set of at least one candidate corresponding to a first selection of possible information sequence produced by the data source,- second soft-input decoding means using a second error correction algorithm for producing a second set of at least one candidate corresponding to a second selection of possible information sequence produced by the data source, - selection means for selecting, among the first and second set of candidates, the most reliable candidate with respect to a predetermined criterion.

公开(公告)号：WO2003103152A2

公开(公告)日：2003-12-11

申请号：PCT/IB2003/002075

申请日：2003-05-15

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  CHOULY, Antoine ,  POTHIER, Olivier ,  PISCHELLA, Mylène

Inventor： CHOULY, Antoine ,  POTHIER, Olivier ,  PISCHELLA, Mylène

IPC: H03M13/00

CPC classification number: H03M13/453 ,  H03M13/13 ,  H03M13/45 ,  H03M13/451

Abstract: The invention relates to digital transmission and recording systems. It particularly relates to a receiver for receiving a sequence of encoded data produced by a data source from an information sequence and encoded by an encoder, the received encoded data sequence possibly comprising errors, the receiver comprising decoding means for retrieving the information sequence from the received encoded data sequence. The decoding means comprises: - first soft-input decoding means using a first error correction algorithm for producing a first set of at least one candidate corresponding to a first selection of possible information sequence produced by the data source,- second soft-input decoding means using a second error correction algorithm for producing a second set of at least one candidate corresponding to a second selection of possible information sequence produced by the data source, - selection means for selecting, among the first and second set of candidates, the most reliable candidate with respect to a predetermined criterion.

Abstract translation: 本发明涉及数字传输和记录系统。 特别涉及一种接收机，用于从信息序列中接收由数据源产生的并由编码器编码的编码数据序列，所接收的编码数据序列可能包含错误，接收机包括用于从接收到的信息序列中检索信息序列的解码装置 编码数据序列。 解码装置包括： - 第一软输入解码装置，使用第一纠错算法产生对应于由数据源产生的可能信息序列的第一选择的至少一个候选的第一组; - 第二软输入解码装置 使用第二纠错算法来产生对应于由数据源产生的可能信息序列的第二选择的至少一个候选的第二组; - 选择装置，用于在第一和第二组候选中选择最可靠的候选 相对于预定标准。

公开(公告)号：WO2003094520A1

公开(公告)日：2003-11-13

申请号：PCT/IB2003/001544

申请日：2003-04-11

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  CHOULY, Antoine ,  POTHIER, Olivier

Inventor： CHOULY, Antoine ,  POTHIER, Olivier

IPC: H04N7/24

CPC classification number: H04N21/4382 ,  H04L27/183

Abstract: The invention relates to digital transmissions. It particularly relates to a new transmission system (DVB-S2), which is backward compatible with a primary transmission system (DVB-S), enabling a receiver of the primary system to receive signals transmitted by a transmitter of the new transmission system. The principle of the invention is based on using a hybrid QPSK/Non-Uniform 8-PSK modulation. The hybrid modulation is specified by a periodic binary pattern indicating, for each symbol, which modulation is used.

Abstract translation: 本发明涉及数字传输。 它特别涉及一种与主传输系统（DVB-S）向后兼容的新的传输系统（DVB-S2），使主系统的接收机能够接收由新传输系统的发射机发射的信号。 本发明的原理基于使用混合QPSK /非均匀8-PSK调制。 混合调制由周期性二进制模式指定，表示对于每个符号，使用哪种调制。

公开(公告)号：WO2002095955A1

公开(公告)日：2002-11-28

申请号：PCT/IB2002/001878

申请日：2002-05-21

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  LAMY, Catherine ,  POTHIER, Olivier

Inventor： LAMY, Catherine ,  POTHIER, Olivier

IPC: H03M13/41

CPC classification number: H03M7/40 ,  H03M13/3944 ,  H03M13/3955 ,  H03M13/6318

Abstract: The present invention relates to a method of source decoding variable-length codeword sequences, said decoding being based on an associated state diagram comprising a plurality of states (S) and on a code (C). It is characterized in that it comprises a step of reducing the states (S) in the state diagram in such a way that, at a bit time (Bj), only a number N of states in a group (G) of states is saved on the basis of a criterion derived from a partial metric computation and otherwise independently of an alphabet of said code (C), a group (G) being associated with a bit time (Bj). A group (G) corresponds to all the states (S) calculated at each bit time (Bj).

Abstract translation: 本发明涉及一种源解码可变长度码字序列的方法，所述解码基于包括多个状态（S）和代码（C）的相关状态图。 其特征在于，它包括以状态图中的状态（S）减小的步骤，使得在比特时间（Bj），仅保存状态组（G）中仅数量N的状态 基于从部分度量计算导出并且独立于所述代码（C）的字母表的标准的基准，与位时间（Bj）相关联的组（G）。 组（G）对应于在每个位时间（Bj）处计算的所有状态（S）。