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1.发明公开
公开(公告)号：EP0713295A4
公开(公告)日：2002-04-17
申请号：EP95913405
申请日：1995-03-31
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU , SONOHARA MITO
CPC classification number: H04B1/665 , G10L2025/935 , G11B20/10 , G11B20/10527
Abstract: Input signals are converted into frequency components, the frequency components are separated into first signals composed of tonal components and second signals composed of other components. The first and second signals are respectively encoded and code string to be transmitted or recorded is generated. For example, only the first signals are encoded, and an information substring generated for, e.g., every quantization accuracy information which has a common value and a parameter related to the encoding of the first signals is included in the code string, by using at least either, for example, the number of spectrum components constituting the tonal components which is the parameter related to the separation or, for example, quantization accuracy information which is the parameter related to the encoding of the first signals as a reference parameter. Thus, the inputted signals can be encoded more efficiently than conventional.
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2.发明公开METHOD AND DEVICE FOR ENCODING SIGNAL, SIGNAL TRANSMITTING METHOD, SIGNAL RECORDING MEDIUM, AND METHOD AND DEVICE FOR DECODING SIGNAL 失效方法和设备信号编码，SIGNALUBERTRAGUNGSVERFAHREN和方法及装置信号解码
公开(公告)号：EP0702458A4
公开(公告)日：2001-05-02
申请号：EP95913414
申请日：1995-04-03
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SONOHARA MITO , SHIMOYOSHI OSAMU
CPC classification number: G11B20/10527 , G11B20/00007 , G11B20/10 , H03M7/3053 , H04B1/665 , H04B1/667
Abstract: Time-series sampled data of the input signal are grouped (SO1); the data are converted into spectrum data by MDCT (SO2); in order to divide the spectrum data into units, a code table is selected for every unit (SO6); the spectrum data are encoded by quantization using the code tables (SO8); and the encoded spectrum data, the identification signals of the code tables, the normalization coefficients and the number of steps of quantization are outputted (SO9). It is also possible to select a code table for every frame. Thus, the hardware scale of the encoder can be effectively reduced and the encoding efficiency of the encoder can be effectively improved.
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3.发明公开ENCODING METHOD AND DEVICE, DECODING METHOD AND DEVICE, AND RECORDING MEDIUM 失效KODIERUNGSVERFAHREN UND VORRICHTUNG，DEKODIERUNGSVERFAHREN UND VORRICHTUNG，UND AUFZEICHNUNGSMEDIUM
公开(公告)号：EP0924962A4
公开(公告)日：2006-05-31
申请号：EP98912767
申请日：1998-04-10
Applicant: SONY CORP
Inventor： SHIMOYOSHI OSAMU , TSUTSUI KYOYA
CPC classification number: H04H20/88 , G10L19/008 , G11B20/10 , H04H40/72 , H04S1/007
Abstract: A recording medium for recording a code string comprising: encoded signals of an A-channel, i.e. (L+R)/2, generated from L- and R-channels; encoded signals of a B-channel, i.e. either one of L- and R-channels or (L-R)/2; channel constitution data which are the information for selecting B-channel signals; and encoding parameters. The A-channel is used for such signals that can be reproduced with a reproducing device of an old standard type and the B-channel is used for such signals that can be reproduced with a reproducing device of a new standard type. The reproducing device of a new standard type can reproduce both A- and B-channel signals. Encoding and decoding which realize multichannel devices by expanding the new standard while making possible the reproduction with the reproducing device of an old standard type, wherein the deterioration of tone quality is reduced by minimizing the quantization noise produced by encoding.
Abstract translation: 记录代码串，其包括从L和R通道的信号产生的（L + R）/ 2的通道A的编码信号，L和R通道的信号中的任一个的编码信号或通道B （LR）/ 2，作为信道B的信号的选择信息的信道构成数据，以及编码参数。 信道A信号是可以由以前的标准适应性再现装置再现的信号，信道B信号是可由新的标准适应型再现装置再现的信号。 新的标准适应性再现装置能够再现信道A和B的信号。因此，在通过根据新标准的扩展实现多信道的编码和解码中，同时能够由前标准适应性再现装置 ，通过编码产生的量化噪声被抑制到最小水平，从而降低声音质量。
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4.发明公开Methods and apparatus for recording, reproducing, transmitting and/or receiving compressed data and recording medium therefor. 失效方法和装置用于记录，再生，传输和/或接收数据和kompinierten适当的记录介质。
公开(公告)号：EP0615349A3
公开(公告)日：1998-06-03
申请号：EP94301662
申请日：1994-03-09
Applicant: SONY CORP
Inventor： SHIMOYOSHI OSAMU , AKAGIRI KENZO , SUZUKI HIROSHI , MITSUNO MAKOTO
CPC classification number: G11B20/00007 , G10L19/0208 , G10L19/022 , G11B20/10527 , H03G9/025 , H04B1/665
Abstract: A technique for recording, reproducing, transmitting and/or receiving compressed data utilizes frequency dividing filters (101, 102) for dividing the frequency range of digital signals into plural frequency bands, orthogonal transform circuits (103-105) for producing signal components in plural two-dimensional blocks along time and frequency, an adaptive bit allocation and encoding circuit (108) for quantizing and compressing the information for each two-dimensional block, and a bit allocation and calculating circuit (107). When recording the information together with information compressing parameters for each two-dimensional block, the information compressing parameters for at least two two-dimensional blocks are recorded collectively to avoid complexity in the structure of the sampling frequency signal generating circuits or the like that would otherwise be caused in the case of providing plural sampling frequencies, as well as to prevent an increase in hardware scale.
Abstract translation: 用于将数字信号的频率范围分成多个频带用于记录的技术，再生，传输和/或接收压缩数据利用频率分割滤波器（101，102），正交变换电路（103-105），用于在多个生产的信号分量 沿时间和频率的二维块，自适应比特分配和编码电路（108），用于量化和压缩每个二维块的信息，以及一个比特分配和计算电路（107）。 用信息压缩参数的每个两维块一起进行记录时的信息，所述信息压缩参数的至少两个二维数据组被共同地记录，以避免在该取样频率信号产生电路的结构复杂性或以其它方式等，其将 引起在提供多个采样频率，以及为了防止在硬件规模增大的情况下。
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公开(公告)号：DE69837738T2
公开(公告)日：2008-01-31
申请号：DE69837738
申请日：1998-03-25
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU
Abstract: An encoding method and apparatus and a decoding method and apparatus in which the encoded information is decreased in volume and in which the encoding and decoding operations are performed with a smaller processing volume and a smaller buffer memory capacity. The apparatus includes a low range signal splitting circuit (261g, 261h) for separating low-range side signal components (260c,260d) from L and R channel signals (260a,260b) converted by a transform circuit into spectral signal components, and a channel synthesis circuit (261e) for synthesizing (L+R) channel signal components from the L and R channel spectral signal components (260c,260d). The apparatus also includes a high range signal separating circuit (261f) for separating the high range side signal components (260h) from the (L+R) channel signal components (260a,260b), a signal component encoding circuit (261j,261k) for compression-encoding low-range side signal components and a signal component encoding circuit (261i) for compression-encoding the normalization coefficient information obtained on normalization of the (L+R) channel high-range signal components.
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Patent Agency Ranking
公开(公告)号：DE69533500T2
公开(公告)日：2005-09-08
申请号：DE69533500
申请日：1995-03-31
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU , SONOHARA MITO
Abstract: Input signals are converted into frequency components, the frequency components are separated into first signals composed of tonal components and second signals composed of other components. The first and second signals are respectively encoded and code string to be transmitted or recorded is generated. For example, only the first signals are encoded, and an information substring generated for, e.g., every quantization accuracy information which has a common value and a parameter related to the encoding of the first signals is included in the code string, by using at least either, for example, the number of spectrum components constituting the tonal components which is the parameter related to the separation or, for example, quantization accuracy information which is the parameter related to the encoding of the first signals as reference parameter. Thus, the inputted signals can be encoded more efficiently than conventional.
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公开(公告)号：DE69532906T2
公开(公告)日：2005-04-21
申请号：DE69532906
申请日：1995-08-16
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU
IPC: G06F17/14
Abstract: A method and apparatus for encoding input digital data by high-efficiency encoding, a method for transmitting the encoded information and a method and apparatus for reproducing and decoding the transmitted information, are disclosed. For encoding, an input signal is forward orthogonal transformed (303) into spectral signals using a windowing function for forward orthogonal transform having a shape A. For decoding, the spectral signals are inverse orthogonal transformed using a windowing function having a shape B different from the shape A. The degree of concentration of the energy of the spectral distribution may be raised and efficient encoding may be achieved even in case of modified DCT (MDCT) wherein the windowing function needs to satisfy a pre-set constraint.
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公开(公告)号：DE69533500D1
公开(公告)日：2004-10-21
申请号：DE69533500
申请日：1995-03-31
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU , SONOHARA MITO
Abstract: Input signals are converted into frequency components, the frequency components are separated into first signals composed of tonal components and second signals composed of other components. The first and second signals are respectively encoded and code string to be transmitted or recorded is generated. For example, only the first signals are encoded, and an information substring generated for, e.g., every quantization accuracy information which has a common value and a parameter related to the encoding of the first signals is included in the code string, by using at least either, for example, the number of spectrum components constituting the tonal components which is the parameter related to the separation or, for example, quantization accuracy information which is the parameter related to the encoding of the first signals as reference parameter. Thus, the inputted signals can be encoded more efficiently than conventional.
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公开(公告)号：BR9806692A
公开(公告)日：2000-09-05
申请号：BR9806692
申请日：1998-03-31
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU
Abstract: An encoding method and apparatus and a decoding method and apparatus in which the encoded information is decreased in volume and in which the encoding and decoding operations are performed with a smaller processing volume and a smaller buffer memory capacity. The apparatus includes a low range signal splitting circuit (261g, 261h) for separating low-range side signal components (260c,260d) from L and R channel signals (260a,260b) converted by a transform circuit into spectral signal components, and a channel synthesis circuit (261e) for synthesizing (L+R) channel signal components from the L and R channel spectral signal components (260c,260d). The apparatus also includes a high range signal separating circuit (261f) for separating the high range side signal components (260h) from the (L+R) channel signal components (260a,260b), a signal component encoding circuit (261j,261k) for compression-encoding low-range side signal components and a signal component encoding circuit (261i) for compression-encoding the normalization coefficient information obtained on normalization of the (L+R) channel high-range signal components.
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公开(公告)号：ID20092A
公开(公告)日：1998-10-01
申请号：ID980463
申请日：1998-03-30
Applicant: SONY CORP
Inventor： TSUTSUI KYOYA , SHIMOYOSHI OSAMU
Abstract: An encoding method and apparatus and a decoding method and apparatus in which the encoded information is decreased in volume and in which the encoding and decoding operations are performed with a smaller processing volume and a smaller buffer memory capacity. The apparatus includes a low range signal splitting circuit (261g, 261h) for separating low-range side signal components (260c,260d) from L and R channel signals (260a,260b) converted by a transform circuit into spectral signal components, and a channel synthesis circuit (261e) for synthesizing (L+R) channel signal components from the L and R channel spectral signal components (260c,260d). The apparatus also includes a high range signal separating circuit (261f) for separating the high range side signal components (260h) from the (L+R) channel signal components (260a,260b), a signal component encoding circuit (261j,261k) for compression-encoding low-range side signal components and a signal component encoding circuit (261i) for compression-encoding the normalization coefficient information obtained on normalization of the (L+R) channel high-range signal components.
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