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    • 3. 发明授权
    • Error correcting DPCM transcoding
    • 纠正DPCM转码错误
    • US08176368B2
    • 2012-05-08
    • US12685017
    • 2010-01-11
    • Martin Austin WandJesse Gregory Villarreal, Jr.
    • Martin Austin WandJesse Gregory Villarreal, Jr.
    • G06F11/00
    • H03M7/3053
    • A digital system is provided that converts compressed data using an indexed transcoding lookup table. A stream of compressed data samples has data samples that represent one of n values corresponding to the first compression format. The transcoding table has at least n indexed entries, and each of the n indexed entries contains a data value corresponding to a second compression format. The transcoding table is accessed by using each of a portion of the received data samples as an index into the table to form a set of transcoded data samples that have a second compression format. The set of transcoded data samples form a stream of compressed data samples that have the second compression format. The transcoding table may be augmented to perform transcoding error correction by concatenating an error value with the data sample to index the table.
    • 提供了一种使用索引代码转换查找表转换压缩数据的数字系统。 压缩数据样本流具有表示对应于第一压缩格式的n个值之一的数据样本。 代码转换表具有至少n个索引条目,并且n个索引条目中的每一个包含与第二压缩格式对应的数据值。 通过使用接收的数据样本的一部分作为表中的索引来访问代码转换表,以形成具有第二压缩格式的一组代码转换的数据样本。 代码转换的数据样本集合形成具有第二压缩格式的压缩数据样本流。 可以增强代码转换表以通过将错误值与数据样本连接以对表进行索引来执行代码转换错误校正。
    • 4. 发明申请
    • Error Correcting DPCM Transcoding
    • 错误纠正DPCM转码
    • US20100180166A1
    • 2010-07-15
    • US12685017
    • 2010-01-11
    • Martin Austin WandJesse Gregory Villarreal, JR.
    • Martin Austin WandJesse Gregory Villarreal, JR.
    • G06F11/00H04B1/66
    • H03M7/3053
    • A digital system is provided that converts compressed data using an indexed transcoding lookup table. A stream of compressed data samples has data samples that represent one of n values corresponding to the first compression format. The transcoding table has at least n indexed entries, and each of the n indexed entries contains a data value corresponding to a second compression format. The transcoding table is accessed by using each of a portion of the received data samples as an index into the table to form a set of transcoded data samples that have a second compression format. The set of transcoded data samples form a stream of compressed data samples that have the second compression format. The transcoding table may be augmented to perform transcoding error correction by concatenating an error value with the data sample to index the table.
    • 提供了一种使用索引代码转换查找表转换压缩数据的数字系统。 压缩数据样本流具有表示对应于第一压缩格式的n个值之一的数据样本。 代码转换表具有至少n个索引条目,并且n个索引条目中的每一个包含与第二压缩格式对应的数据值。 通过使用接收的数据样本的一部分作为表中的索引来访问代码转换表,以形成具有第二压缩格式的一组代码转换的数据样本。 代码转换的数据样本集合形成具有第二压缩格式的压缩数据样本流。 可以增强代码转换表以通过将错误值与数据样本连接以对表进行索引来执行代码转换错误校正。