Encoder using Huffman codes
    1.
    发明授权
    Encoder using Huffman codes 有权
    编码器使用霍夫曼码

    公开(公告)号:US06484142B1

    公开(公告)日:2002-11-19

    申请号:US09551796

    申请日:2000-04-18

    IPC分类号: G10L1914

    CPC分类号: H03M7/42

    摘要: An encoder of the present invention includes: G storage sections for storing G groups of data; a selection section for selecting one of H Huffman codebooks having codebook numbers for each of the groups of data; G encoding sections Huffman-encoding the G groups of data by using the selected Huffman codebook; and an encoding section for encoding the codebook number of each Huffman codebook selected. The selection section includes a calculation section for calculating a code length and a control section for selecting one of the Huffman codebooks. When the Huffman codebook selected is an unsigned codebook, a number of bits required for sign information has previously been added to the calculated code length.

    摘要翻译: 本发明的编码器包括:G存储部分,用于存储G组数据; 选择部分,用于选择具有每组数据的码本号码的霍夫曼代码簿之一; G编码部分通过使用所选的霍夫曼码本对G组数据进行霍夫曼编码; 以及编码部,用于编码所选择的每个霍夫曼码本的码本号。 选择部分包括用于计算代码长度的计算部分和用于选择霍夫曼码本之一的控制部分。 当选择的霍夫曼代码簿是无符号码本时,已经将计算的代码长度添加到符号信息所需的位数。

    Parallel signal processing device for a portable audio system
    2.
    发明授权
    Parallel signal processing device for a portable audio system 失效
    用于便携式音频系统的并行信号处理装置

    公开(公告)号:US06999828B2

    公开(公告)日:2006-02-14

    申请号:US09741912

    申请日:2000-12-22

    IPC分类号: G06F17/00 G10L21/00

    CPC分类号: H03H17/0223

    摘要: The present invention is a signal processing device which performs parallel processes A and B efficiently. There is a deviation in the throughputs of the process A and B in processing an audio signal. First to Nth sub signal processing sections have capabilities to complete the process A within a period (N×T). A main signal processing sections has a capability to complete the process B within a period T. Efficient signal processing can be achieved by processing an input digital signal by means of distinct sub signal processing devices one after another and then processing the signal by the main signal processing section. (N×T).

    摘要翻译: 本发明是一种有效执行并行处理A和B的信号处理装置。 在处理音频信号时,处理A和B的吞吐量有偏差。 第一至第N个子信号处理部分具有在一段时间内完成过程A的能力(NxT)。 主信号处理部分具有在时段T内完成处理B.能够通过不同的子信号处理装置一个接一个处理输入数字信号,然后通过主信号处理信号来实现有效的信号处理 处理部分。 (NxT)。

    Signal processing unit and signal processing method including using an exponent part and a mantissa part for power generation
    4.
    发明授权
    Signal processing unit and signal processing method including using an exponent part and a mantissa part for power generation 失效
    信号处理单元和信号处理方法,包括使用指数部分和尾数部分进行发电

    公开(公告)号:US06898615B2

    公开(公告)日:2005-05-24

    申请号:US09909971

    申请日:2001-07-23

    IPC分类号: G06F1/03 G06F7/556 G06F1/02

    摘要: An exponent part extraction section extracts a bit series from the exponent part of an inputted floating point data. A mantissa part extraction section extracts the uppermost K bits from the mantissa part of the floating point data. A first conversion section inputs the output e from the exponent part extraction section and outputs the value of a function X(e) thereof. A second conversion section inputs the output f from the mantissa part extraction section and outputs the value of a function Y(f) thereof. A multiplier section multiplies together these values. By setting suitable tables in advance in the first and the second conversion sections, the calculation of the v^p for an item v of floating point data can be performed.

    摘要翻译: 指数部分提取部分从输入的浮点数据的指数部分中提取比特序列。 尾数部分提取部分从浮点数据的尾数部分提取最上面的K位。 第一转换部分输入来自指数部分提取部分的输出e,并输出其函数X(e)的值。 第二转换部分输入来自尾数部分提取部分的输出f并输出其函数Y(f)的值。 乘数部分将这些值相乘。 通过预先在第一和第二转换部分中设置合适的表,可以执行浮点数据的项目v的v ^ p的计算。

    Encoding device, decoding device, and system thereof utilizing band expansion information

    公开(公告)号:US20070239463A1

    公开(公告)日:2007-10-11

    申请号:US11806971

    申请日:2007-06-05

    IPC分类号: G10L19/00

    CPC分类号: G10L19/18 G10L19/24

    摘要: A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.

    Encoding device, decoding device, and system thereof utilizing band expansion information
    6.
    发明授权
    Encoding device, decoding device, and system thereof utilizing band expansion information 有权
    编码装置,解码装置及其系统利用频带扩展信息

    公开(公告)号:US07260540B2

    公开(公告)日:2007-08-21

    申请号:US10288364

    申请日:2002-11-06

    IPC分类号: G10L19/00

    CPC分类号: G10L19/18 G10L19/24

    摘要: A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.

    摘要翻译: 解码装置(30a)包括窄带解码单元(31),用于从包括在宽带比特流(S 0)中的窄带比特流再现PCM信号(P 1) 频带解码单元(32),用于从窄带位重放具有比由窄带解码单元(31)再现的PCM信号(P 1)的频带宽的频带的PCM信号(P 2) 流和包括在宽带比特流(S 0)中的频带扩展比特流和选择单元(34),其可操作以选择由窄带解码单元(31)或PCM再现的PCM信号(P 1) 信号(P 2),并输出所选择的声音数字信号。

    Encoding device, decoding device, and system thereof utilizing band expansion information
    7.
    发明授权
    Encoding device, decoding device, and system thereof utilizing band expansion information 有权
    编码装置,解码装置及其系统利用频带扩展信息

    公开(公告)号:US08311841B2

    公开(公告)日:2012-11-13

    申请号:US11806971

    申请日:2007-06-05

    IPC分类号: G10L19/00 G10L21/04

    CPC分类号: G10L19/18 G10L19/24

    摘要: A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.

    摘要翻译: 解码装置(30a)包括:窄带解码单元,用于从包括在宽带比特流(S0)中的窄带比特流中再现PCM信号(P1);宽带解码单元 (32),用于从窄带位流再现具有比由窄带解码单元(31)再现的PCM信号(P1)的频带宽的频带的PCM信号(P2) 包括在宽带比特流(S0)中的比特流和选择单元(34)可操作以选择由窄带解码单元(31)再现的PCM信号(P1)或由 宽带解码单元(32),并输出所选择的声音数字信号。

    Hierarchical data storage processing apparatus for partitioning resource
across the storage hierarchy
    8.
    发明授权
    Hierarchical data storage processing apparatus for partitioning resource across the storage hierarchy 失效
    层次数据存储处理装置,用于在存储层级中划分资源

    公开(公告)号:US5784646A

    公开(公告)日:1998-07-21

    申请号:US557124

    申请日:1995-12-07

    申请人: Yoshiaki Sawada

    发明人: Yoshiaki Sawada

    IPC分类号: G06F12/08 G06F12/00 G06F12/02

    摘要: The present invention relates to a data storage processing apparatus and the object of the present invention is to provide storages including off-line media and to improve the usability of users as well as removing the unfairness among users. The resource of data storage processing will be divided and dynamically allocated and simultaneously various multiple storages in the resource of the data storage processing will be integrated in accordance with file systems and hierarchically arranged according to speeds and features, and file systems will be constructed on that hierarchical various multiple storages, and thus, users are able to access to the optional files making no distinction of various multiple storages and/or file system.

    摘要翻译: PCT No.PCT / JP95 / 00810 Sec。 371 1995年12月7日第 102(e)日期1995年12月7日PCT 1995年4月25日提交PCT公布。 公开号WO95 / 29444 日期:1995年11月2日本发明涉及数据存储处理装置,本发明的目的是提供包括离线媒体的存储器,并提高用户的可用性以及消除用户之间的不公平性。 数据存储处理的资源将被划分和动态分配,并且数据存储处理的资源中的各种存储将根据文件系统被整合并根据速度和特征进行分层排列,并且文件系统将被构造在 分级的各种多个存储器,因此用户能够访问可选文件,而不区分各种多个存储和/或文件系统。