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    • 5. 发明申请
    • USING VARIABLE LENGTH CODE TABLES TO COMPRESS AN INPUT DATA STREAM TO A COMPRESSED OUTPUT DATA STREAM
    • 使用可变长度代码表将输入数据流压缩到压缩的输出数据流
    • US20130021179A1
    • 2013-01-24
    • US13188405
    • 2011-07-21
    • Glen A. Jaquette
    • Glen A. Jaquette
    • H03M7/40
    • H03M7/40H03M5/145H03M7/30H03M7/4062H03M13/1111H04B1/7115H04L1/0054H04L1/006H04L25/4925H04L27/02H04L29/0604
    • Provided are a computer program product, system, method, and data structure for using variable length code tables to compress an input data stream to a compressed output data stream. If a number of consecutive data units in the input data stream match the number of consecutive data units in a history buffer of previously received data units in the input data stream, a copy pointer symbol is generated indicating the copy pointer symbol referencing previously received data units in the history buffer and indicating a location of a start of the consecutive data units in the history buffer. A determination is made from a variable length code table of an encoding of the number. Indication is made in the generated copy pointer symbol the determined encoding of the number and the copy pointer symbol is outputted in the compressed output data stream.
    • 提供了一种用于使用可变长度代码表将输入数据流压缩到压缩输出数据流的计算机程序产品,系统,方法和数据结构。 如果输入数据流中的多个连续数据单元与输入数据流中先前接收到的数据单元的历史缓冲器中的连续数据单元的数量相匹配,则生成指示复制指针符号的复制指针符号,该复制指针符号参考先前接收到的数据单元 并且在历史缓冲器中指示连续数据单元的开始位置。 从编号的编码的可变长度代码表中确定。 在所生成的复制指针符号中指示所确定的编号的编码和复制指针符号在压缩输出数据流中被输出。
    • 6. 发明申请
    • USING VARIABLE LENGTH CODE TABLES TO COMPRESS AN INPUT DATA STREAM TO A COMPRESSED OUTPUT DATA STREAM
    • 使用可变长度代码表将输入数据流压缩到压缩的输出数据流
    • US20130021178A1
    • 2013-01-24
    • US13188401
    • 2011-07-21
    • Glen A. Jaquette
    • Glen A. Jaquette
    • H03M7/40
    • H03M7/40H03M5/145H03M7/30H03M13/1111H04B1/7115H04L1/0054H04L1/006H04L25/4925H04L27/02H04L29/0604
    • Provided are a computer program product, system, method, and data structure for using variable length code tables to compress an input data stream to a compressed output data stream. A determination is made as to whether a number of at least two consecutive data units in the input data stream match the number of consecutive data units in a history buffer of previously received data units in the input data stream. If so, a copy pointer symbol is generated including data indicating a copy pointer symbol referencing previously received data units in the history buffer and indicating the determined number of consecutive data units. A determination is made of a relative displacement count in the history buffer at which the number of matching consecutive data units start. A determination is made from a variable length code table an encoding of the relative displacement count in the history buffer.
    • 提供了一种用于使用可变长度代码表将输入数据流压缩到压缩输出数据流的计算机程序产品,系统,方法和数据结构。 确定输入数据流中的至少两个连续数据单元的数目是否与输入数据流中先前接收到的数据单元的历史缓冲器中的连续数据单元的数量相匹配。 如果是,则生成复制指针符号,包括指示在历史缓冲器中引用先前接收到的数据单元的复制指针符号的数据,并指示确定的连续数据单元的数量。 确定在匹配的连续数据单元的数量开始的历史缓冲器中的相对位移计数。 从可变长度码表中确定历史缓冲器中的相对位移计数的编码。
    • 7. 发明申请
    • Coding method
    • 编码方法
    • US20040150545A1
    • 2004-08-05
    • US10478856
    • 2003-11-25
    • Raymond GassMichel Le Creff
    • H04L017/02
    • H04L25/4919H03M5/16H04L25/4925
    • The method consists in coding a binary word in accordance with a plurality of coding tables, the coding table for each binary word to be coded being chosen as a function of at least one supplementary information item to be coded. In a first variant, a word of p bits is coded with a symbol made up of q ternary digits, p and q being chosen so that the number of symbols having a weight equal to 0 is at least equal to 2null2p. A first coding table contains 2p symbols having a weight equal to 0. A second coding table contains 2pother symbols having a weight equal to 0. In a second variant, p and q are chosen so that the number of symbols having a weight equal to 0 or a weight equal to null1 is at least equal to 3null2p; a first coding table contains 2p symbols having a weight equal to 0; a second coding table contains 2p other symbols having a weight equal to null1; and a third coding table contains 2p other symbols having a weight equal to null1. In a third variant, q binary symbols are used; p and q are chosen so that q is greater than or equal to pnull1; a first coding table contains 2p symbols; and a second coding table contains 2p other symbols. Application in particular to data transmission networks conforming to the IEEE 802.3 standard.
    • 该方法包括根据多个编码表对二进制字进行编码,将要编码的每个二进制字的编码表作为要被编码的至少一个补充信息项的函数被选择。 在第一变型中,p位的字用由q个三位数组成的符号编码,p和q被选择,使得具有等于0的权重的符号的数量至少等于2×2。 第一编码表包含权重等于0的2个符号。第二编码表包含重量等于0的2个其他符号。在第二变型中,选择p和q, 权重等于0或权重等于±1的符号至少等于3×2; 第一编码表包含重量等于0的2个符号; 第二编码表包含重量等于-1的2个其他符号; 并且第三编码表包含重量等于+1的2个其他符号。 在第三个变体中,使用q个二进制符号; 选择p和q使得q大于或等于p + 1; 第一编码表包含2个符号; 并且第二编码表包含2

      个其他符号。 特别适用于符合IEEE 802.3标准的数据传输网络。

    • 8. 发明授权
    • Encoding and decoding method using a multi-state signal
    • 使用多态信号的编码和解码方法
    • US06356596B1
    • 2002-03-12
    • US09108554
    • 1998-07-01
    • Fabrizio MontautiDaran WangAlessandro Vannucchi
    • Fabrizio MontautiDaran WangAlessandro Vannucchi
    • H04L2534
    • H04L25/4925
    • Two input binary signals are sampled in preparation for being encoded into one signal. The encoded signal is provided with one of the three discrete states based on the sample binary states of the two input signals. A first discrete state is provided if the sampled binary state of the first input signal is a first of two binary states. A second discrete state is provided if the sampled binary state of the first input signal is a second of two binary states, and if two sampled binary states of the second input signal are the same. A third discrete state is provided if the sampled binary state of the first input signal is a second of two binary states, and of the two sampled binary states of the second input signal are different. A corresponding decoding method is also described.
    • 两个输入二进制信号被采样以准备被编码成一个信号。 基于两个输入信号的采样二进制状态,编码信号被提供有三个离散状态之一。 如果第一输入信号的采样二进制状态是两个二进制状态中的第一个,则提供第一离散状态。 如果第一输入信号的采样二进制状态是两个二进制状态中的第二个,并且第二输入信号的两个采样二进制状态相同,则提供第二离散状态。 如果第一输入信号的采样二进制状态是两个二进制状态中的第二,并且第二输入信号的两个采样二进制状态不同,则提供第三离散状态。 还描述了相应的解码方法。