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    • 3. 发明申请
    • DYNAMICALLY CREATED TWO-STAGE SELF EXTRACTING ARCHIVES
    • 动态创建两级自动提取档案
    • US20110258163A1
    • 2011-10-20
    • US13091080
    • 2011-04-20
    • Serge VolkoffDarryl LovatoMichael Halpin
    • Serge VolkoffDarryl LovatoMichael Halpin
    • G06F17/30
    • H03M7/30G06F16/113
    • A method of dynamically creating a two-stage self-extracting archives. During the archive creation process the executable code segments for inverse algorithms are selectively added to the self-extracting archive, but only for those algorithms applied during archive creation. This results in a considerably smaller size of the self-extracting archive. Additional space savings can be achieved by reprocessing the original data to eliminate the use of any algorithm applied in the archive creation which resulted in less savings than the additional size of the corresponding inverse algorithm. The selected inverse algorithms are themselves compressed. A compact inverse algorithm is provided as ready-to-execute code, which restores the selected inverse algorithms to an executable state, and then causes them to be executed on the compressed file data.
    • 一种动态创建两阶段自解压存档的方法。 在归档创建过程中,用于逆算法的可执行代码段被选择性地添加到自解压缩存档,但仅适用于在归档创建期间应用的那些算法。 这导致自解压档案的大小更小。 通过重新处理原始数据可以实现额外的空间节省,以消除使用归档创建中应用的任何算法,这导致比相应逆算法的附加大小更少的节省。 所选择的逆算法本身被压缩。 提供了一种紧凑的逆算法作为可执行代码,将所选择的逆算法恢复为可执行状态,然后使其在压缩文件数据上执行。
    • 9. 发明授权
    • Advanced solid block splitting for lossless data compression
    • 高级固态块分割用于无损数据压缩
    • US08456333B1
    • 2013-06-04
    • US13280252
    • 2011-10-24
    • Vladimir SemenyukSerge Volkoff
    • Vladimir SemenyukSerge Volkoff
    • H03M7/40
    • H03M7/30
    • A method of separating data blocks with stationary informational characteristics, including the steps of sequentially collecting statistics for small data blocks in an input data set, calculating the relative change in the estimated compression efficiency for a solid block currently being formed caused by merging its statistics with the statistics of a next small block, deciding whether the small block should be added to the solid block; for any block for which the decision is no, the block is used as the starting block of the next solid block to be formed. Auxiliary block data type detection is used to improve the method.
    • 一种分离具有固定信息特征的数据块的方法,包括以下步骤:在输入数据集中顺序收集小数据块的统计数据,计算当前正在形成的实体块的估计压缩效率的相对变化, 统计下一个小块,决定是否将小块添加到实体块中; 对于决定为否的任何块,块被用作要形成的下一个实体块的起始块。 辅助块数据类型检测用于改进方法。
    • 10. 发明授权
    • Efficient compression method for sorted data representations
    • 用于排序数据表示的高效压缩方法
    • US08537038B1
    • 2013-09-17
    • US13280316
    • 2011-10-24
    • Vladimir SemenyukSerge Volkoff
    • Vladimir SemenyukSerge Volkoff
    • H03M7/00
    • H03M7/3068H03M7/40
    • A method of compressing sorted data representation symbols sequentially. Steps include determining whether a symbol currently being encoded is identical to an immediately preceding symbol; encoding the result as a binary event; if the symbols are identical, encoding the symbol ends; if the symbols are different and there is a constant difference between several previous pairs of symbols, determining whether the difference between the current symbol a and the symbol immediately preceding it b is the same as the difference between the symbol b and the symbol immediately preceding it c, and encoding the determination result as another binary event; in the case of positive result of the latest determination, encoding the symbol ends; otherwise, encoding the symbol using a bitwise operation in which bits of the symbol's binary representation are processed sequentially from the most significant bit to the least significant bit. A corresponding decompression method is provided.
    • 一种顺序压缩分类数据表示符号的方法。 步骤包括确定当前正被编码的符号是否与紧接在前的符号相同; 将结果编码为二进制事件; 如果符号相同,则符号编码结束; 如果符号不同并且在几个先前的符号对之间存在恒定的差异,则确定当前符号a和紧接在其之前的符号b之间的差异是否与符号b和其前面的符号之间的差相同 c,并将确定结果编码为另一个二进制事件; 在最新确定的肯定结果的情况下,符号的编码结束; 否则,使用其中符号的二进制表示的比特从最高有效位顺序地处理到最低有效位的按位操作对码元进行编码。 提供相应的减压方法。