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1.发明授权A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium 有权半导体存储卡再现装置，记录装置，再现方法，记录方法和计算机可读记录介质
公开(公告)号：EP1056094B1
公开(公告)日：2007-08-08
申请号：EP00111471.9
申请日：2000-05-26
发明人： Tagawa, Kenji , Matsushima, Hideki , Hirota, Teruto , Ishikawa, Tomokazu , Inoue, Shinji , Kozuka, Masayuki
CPC分类号： G11C7/16 , G06F3/16 , G09G3/2092 , G09G5/39 , G09G2340/12 , G11B20/00086 , G11B20/0021 , G11B20/00253 , G11B20/00492 , G11B27/005 , G11B27/034 , G11B27/105 , G11B2220/61 , G11B2220/65 , H04N1/00132 , H04N1/00198 , H04N1/32112 , H04N2201/3264
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2.发明授权A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium 有权半导体存储卡，回放装置，记录装置，回放方法，记录方法和计算机可读记录介质
公开(公告)号：EP1056092B1
公开(公告)日：2007-07-11
申请号：EP00111469.3
申请日：2000-05-26
发明人： Hirota, Teruto , Tagawa, Kenji , Matsushima, Hideki , Ishikawa, Tomokazu , Inoue, Shinji , Kozuka, Masayuki
CPC分类号： G11C7/16 , G06F3/16 , H04N1/32112 , H04N2201/3264
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3.发明公开
公开(公告)号：EP0907258A3
公开(公告)日：2004-01-02
申请号：EP98118674.5
申请日：1998-10-02
发明人： Nakatoh, Yoshihisa , Norimatsu, Takeshi , Tsushima, Mineo , Ishikawa, Tomokazu , Serikawa, Mitsuhiko , Katayama, Taro , Nakahashi, Junichi , Yagi, Junko
CPC分类号： H04B1/665 , G10L2019/0005
摘要： An audio signal compression apparatus for compressively coding an input audio signal comprises a time-to-frequency transformation unit for transforming the input audio signal to a frequency domain signal; a spectrum envelope calculation unit for calculating a spectrum envelope having different resolutions for different frequencies, from the input audio signal, using a weighting function on frequency based on human auditory characteristics; a normalization unit for normalizing the frequency domain signal using the spectrum envelope to obtain a residual signal; a power normalization unit for normalizing the residual signal by the power; an auditory weighting calculation unit for calculating weighting coefficients on frequency, based on the spectrum of the input audio signal and human auditory characteristics; and a multi-stage quantization means having plural stages of vector quantizers connected in series, to which the normalized residual signal is input, and at least one of the vector quantizers quantizing the residual signal using the weighting coefficients. Therefore, a low frequency band, which is auditively important, can be analyzed with a higher frequency resolution as compared with a high frequency band, whereby efficient signal compression utilizing human auditory characteristics is realized.
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4.发明公开Semiconductor memory card, apparatus for recording data onto the semiconductor memory card, and apparatus for reproducing data of the semiconductor memory card 有权一种半导体存储器卡，用于记录数据到半导体存储器卡的装置，和装置用于从所述半导体存储卡再现的数据
公开(公告)号：EP1056096A1
公开(公告)日：2000-11-29
申请号：EP00111409.9
申请日：2000-05-26
发明人： Tagawa, Kenji , Matsushima, Hideki , Hirota, Teruto , Ishikawa, Tomokazu , Inoue, Shinji , Kozuka, Masayuki
IPC分类号： G11C7/16
CPC分类号： G11C7/16 , G06F3/16 , G11C2207/16 , H04N1/32112 , H04N2201/3264
摘要： A semiconductor memory card for storing audio information with corresponding text information and type information, the type information indicating a type of the text information. The type is classified into at least (a), (b), and (c) in which the text information respectively includes a 1-byte character code sequence, a 2-byte character code sequence, and a 1-byte character code sequence and a 2-byte character code sequence.
摘要翻译： 一种半导体存储卡，用于与对应的文本信息和类型信息，该类型信息指示的类型的文本信息存储音频信息。 的类型被分类成至少（a）中，（b）和（c）一种在其中文本信息分别包括1个字节的字符码序列，一个2字节的字符码序列，和1字节的字符码序列 和2个字节的字符码序列。
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公开(公告)号：EP1113575A3
公开(公告)日：2004-12-22
申请号：EP00127165.9
申请日：2000-12-12
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.
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公开(公告)号：EP1047198A3
公开(公告)日：2004-01-02
申请号：EP00108532.3
申请日：2000-04-19
CPC分类号： H03M7/42
摘要： An encoder of the present invention includes: a number G of storage sections (G is an integer equal to or greater than 1) for storing a number G of groups of data; a Huffman codebook selection section for selecting one of a number H of Huffman codebooks (H is an integer equal to or greater than 1) for each of the groups of data stored in the respective storage sections, each of the Huffman codebooks having a codebook number; a number G of Huffman encoding sections, each of the Huffman encoding sections Huffman-encoding a corresponding one of the G groups of data by using one of the Huffman codebooks which is selected by the Huffman codebook selection section for the one group of data; and a codebook number encoding section for encoding the codebook number of each Huffman codebook selected by the Huffman codebook selection section. The Huffman codebook selection section includes a code length calculation section for calculating a code length which would result from a Huffman encoding operation of each of the G groups of data using each Huffman codebook, and a control section for selecting one of the Huffman codebooks which is suitable for the group of data based on the code length calculated by the code length calculation section. When the Huffman codebook selected is an unsigned codebook, a number of bits required for sign information has previously been added to the code length calculated by the code length calculation section.
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8.发明公开A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium 有权半导体存储卡再现装置，记录装置，再现方法，记录方法和计算机可读记录介质
公开(公告)号：EP1056092A1
公开(公告)日：2000-11-29
申请号：EP00111469.3
申请日：2000-05-26
发明人： Hirota, Teruto , Tagawa, Kenji , Matsushima, Hideki , Ishikawa, Tomokazu , Inoue, Shinji , Kozuka, Masayuki
CPC分类号： G11C7/16 , G06F3/16 , H04N1/32112 , H04N2201/3264
摘要： An audio stream is divided into a plurality of audio object (AOB) files that are recorded having each been encrypted using a different encryption key. At least one piece of track management information (TKI) is provided corresponding to each track. Playlist information (PLI) assigns a playback position in a playback order to each track when a plurality of tracks are to be played back one after the other.
摘要翻译： 音频流被分成音频对象的多个（AOB）的文件也被记录各自已经使用不同的加密密钥加密。 提供的光轨管理信息（TKI）的至少一条相应于每个轨道。 播放列表信息（PLI）分配一个播放位置中的重放顺序给每个轨道的轨道时的多元性是要回放一个在另一个之后。
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9.发明公开Audio signal compression, speech signal compression and speech recognition 有权Audiosignalkompression，Sprachsignalkompression und Spracherkennung
公开(公告)号：EP0907258A2
公开(公告)日：1999-04-07
申请号：EP98118674.5
申请日：1998-10-02
发明人： Nakatoh, Yoshihisa , Norimatsu, Takeshi , Tsushima, Mineo , Ishikawa, Tomokazu , Serikawa, Mitsuhiko , Katayama, Taro , Nakahashi, Junichi , Yagi, Junko
CPC分类号： H04B1/665 , G10L2019/0005
摘要： An audio signal compression apparatus for compressively coding an input audio signal comprises a time-to-frequency transformation unit for transforming the input audio signal to a frequency domain signal; a spectrum envelope calculation unit for calculating a spectrum envelope having different resolutions for different frequencies, from the input audio signal, using a weighting function on frequency based on human auditory characteristics; a normalization unit for normalizing the frequency domain signal using the spectrum envelope to obtain a residual signal; a power normalization unit for normalizing the residual signal by the power; an auditory weighting calculation unit for calculating weighting coefficients on frequency, based on the spectrum of the input audio signal and human auditory characteristics; and a multi-stage quantization means having plural stages of vector quantizers connected in series, to which the normalized residual signal is input, and at least one of the vector quantizers quantizing the residual signal using the weighting coefficients. Therefore, a low frequency band, which is auditively important, can be analyzed with a higher frequency resolution as compared with a high frequency band, whereby efficient signal compression utilizing human auditory characteristics is realized.
摘要翻译： 一种用于对输入音频信号进行压缩编码的音频信号压缩装置包括用于将输入音频信号变换为频域信号的时间 - 频率变换单元; 频谱包络计算单元，用于根据输入音频信号，使用基于人类听觉特征的频率的加权函数来计算用于不同频率的不同分辨率的频谱包络; 归一化单元，用于使用频谱包络对频域信号进行归一化以获得残余信号; 功率归一化单元，用于通过电力对残留信号进行归一化; 听觉加权计算单元，用于基于输入音频信号的频谱和人类听觉特征来计算频率上的加权系数; 以及多级量化装置，其具有串联连接的多级矢量量化器，其中输入归一化残差信号，以及至少一个矢量量化器使用加权系数量化残差信号。 因此，与高频带相比，可以以更高的频率分辨率来分析具有重要意义的低频带，从而实现利用人类听觉特性的有效信号压缩。
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10.发明授权Semiconductor memory card, apparatus for recording data onto the semiconductor memory card, and apparatus for reproducing data of the semiconductor memory card 有权一种半导体存储器卡，用于记录数据到半导体存储器卡的装置，和装置用于从所述半导体存储卡再现的数据
公开(公告)号：EP1056096B1
公开(公告)日：2008-01-16
申请号：EP00111409.9
申请日：2000-05-26
发明人： Tagawa, Kenji , Matsushima, Hideki , Hirota, Teruto , Ishikawa, Tomokazu , Inoue, Shinji , Kozuka, Masayuki
IPC分类号： G11C7/16
CPC分类号： G11C7/16 , G06F3/16 , G11C2207/16 , H04N1/32112 , H04N2201/3264
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