Low Density Parity Check (LDPC) Encoded Higher Order Modulation
    6.
    发明申请
    Low Density Parity Check (LDPC) Encoded Higher Order Modulation 有权
    低密度奇偶校验(LDPC)编码高阶调制

    公开(公告)号:US20090129484A1

    公开(公告)日:2009-05-21

    申请号:US12272556

    申请日:2008-11-17

    IPC分类号: H04L27/36 H04N7/24

    摘要: A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.

    摘要翻译: 公开了一种将数据序列映射到正交幅度调制(QAM)星座符号的方法和装置。 该方法和装置仅对该数据序列的一部分进行编码,并留下未被编码的数据序列的剩余部分。 然后将数据序列的编码部分和数据序列的剩余未编码部分映射到QAM星座图的调制符号中。 数据序列的编码部分选择QAM星座的子集,并且数据序列的剩余未编码部分确定QAM星座图的每个子集内的特定调制符号。

    Low density parity check (LDPC) encoded higher order modulation
    7.
    发明授权
    Low density parity check (LDPC) encoded higher order modulation 失效
    低密度奇偶校验(LDPC)编码高阶调制

    公开(公告)号:US08503540B2

    公开(公告)日:2013-08-06

    申请号:US13620468

    申请日:2012-09-14

    IPC分类号: H04N7/12 H04N11/02

    摘要: A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.

    摘要翻译: 公开了一种将数据序列映射到正交幅度调制(QAM)星座符号的方法和装置。 该方法和装置仅对该数据序列的一部分进行编码,并留下未被编码的数据序列的剩余部分。 然后将数据序列的编码部分和数据序列的剩余未编码部分映射到QAM星座图的调制符号中。 数据序列的编码部分选择QAM星座的子集,并且数据序列的剩余未编码部分确定QAM星座图的每个子集内的特定调制符号。

    Low density parity check (LDPC) encoded higher order modulation
    8.
    发明授权
    Low density parity check (LDPC) encoded higher order modulation 有权
    低密度奇偶校验(LDPC)编码高阶调制

    公开(公告)号:US08275050B2

    公开(公告)日:2012-09-25

    申请号:US12272556

    申请日:2008-11-17

    IPC分类号: H04N7/12 H04N11/02

    摘要: A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.

    摘要翻译: 公开了一种将数据序列映射到正交幅度调制(QAM)星座符号的方法和装置。 该方法和装置仅对该数据序列的一部分进行编码,并留下未被编码的数据序列的剩余部分。 然后将数据序列的编码部分和数据序列的剩余未编码部分映射到QAM星座图的调制符号中。 数据序列的编码部分选择QAM星座的子集,并且数据序列的剩余未编码部分确定QAM星座图的每个子集内的特定调制符号。

    Unified binarization for CABAC/CAVLC entropy coding

    公开(公告)号:US09231616B2

    公开(公告)日:2016-01-05

    申请号:US13523818

    申请日:2012-06-14

    摘要: Unified binarization for CABAC/CAVLC entropy coding. Scalable entropy coding is implemented in accordance with any desired degree of complexity (e.g., entropy encoding and/or decoding). For example, appropriately implemented context-adaptive variable-length coding (CAVLC) and context-adaptive binary arithmetic coding (CABAC) allow for selective entropy coding in accordance with a number of different degrees of complexity. A given device may operate in accordance with a first level complexity a first time, a second level complexity of the second time, and so on. Appropriate coordination and signaling between an encoder/transmitter device and a decoder/receiver device allows for appropriate coordination along a desired degree of complexity. For example, a variable length binarization module and an arithmetic encoding module may be implemented within an encoder/transmitter device and a corresponding arithmetic decoding module and a variable length bin decoding module may be implemented within a decoder/receiver device allowing for entropy coding along various degrees of complexity.