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    • 41. 发明申请
    • WIDE BAND AUDIO SIGNAL ENCODER, WIDE BAND AUDIO SIGNAL DECODER, WIDE BAND AUDIO SIGNAL ENCODER/DECODER AND WIDE BAND AUDIO SIGNAL RECORDING MEDIUM
    • 宽带音频信号编码器,宽带音频信号解码器,宽带音频信号编码器/解码器和宽带音频信号记录介质
    • WO1997029549A1
    • 1997-08-14
    • PCT/JP1997000301
    • 1997-02-07
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.EJIMA, Naoki
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • H03M07/30
    • G11B20/00007H04B1/667
    • A wide band audio signal encoder, a wide band audio signal decoder, a wide band audio signal encoder/decoder and a wide band audio signal recording medium which have wide band widths, low distortion factors and high dynamic ranges with low bit rates. Wide band audio data are divided into signal data of N (natural number) subbands. The numbers of bits for quantization and for subsampling are determined in accordance with the noise floor information of the wide band audio data. The signal data of the N subbands are subsampled with the respective numbers of bits. Encoded data which are obtained by multiplexing the subsampled signal data of the N subbands are recorded on a wide band audio signal recording medium. Therefore, both the substantially higher dynamic range and the substantially wider band width in comparison with the conventional techniques can be realized. With this constitution, natural recording and reproduction which is extremely transparent and able to reproduce over an extra-high range can be realized and the recording medium on which the audiodata are recorded and a reproduced sound field can be realized.
    • 宽带音频信号编码器,宽带音频信号解码器,宽带音频信号编码器/解码器和宽带音频信号记录介质,具有宽带宽,低失真因数和低比特率的高动态范围。 宽带音频数据被划分为N(自然数)子带的信号数据。 根据宽带音频数据的噪声基底信息来确定用于量化和子采样的比特数。 N个子带的信号数据用相应的位数进行二次采样。 通过复用N个子带的子采样信号数据而获得的编码数据被记录在宽带音频信号记录介质上。 因此,可以实现与传统技术相比,显着更高的动态范围和更宽的带宽。 利用这种结构,可以实现非常透明并且能够在超高范围内再现的自然记录和再现,并且可以实现其上记录有audiodata的记录介质和再现的声场。
    • 43. 发明申请
    • DIGITAL IMAGE ENCODING AND DECODING METHOD AND DIGITAL IMAGE ENCODING AND DECODING DEVICE USING THE SAME
    • 使用数字图像编码和解码方法和数字图像编码和解码装置
    • WO1997027707A1
    • 1997-07-31
    • PCT/JP1997000118
    • 1997-01-21
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.BOON, Choong, Seng
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • H04N07/32
    • H04N19/119H04N19/51
    • A digital image data encoding and decoding device which realizes correct transformation with a small transmitted amount of data when the parameter is a number of a large number of figures and not an integer as in the affine transformation. An image predicting and encoding device is provided with an image compressing means which compresses data by encoding an inputted image, a coordinate transforming means which outputs coordinate data generated when the coordinates of an image obtained by decoding the compressed image from the image compressing means are transformed, a transformation parameter generating means which generates the transformation parameter from the coordinate data of the coordinate transforming means, a predicted image generating means which generates a predicted image from the inputted image by using the transformation parameter, and a transmitting means which transmits the compressed image and coordinate data.
    • 一种数字图像数据编码和解码装置,当参数是大量图形的数量而不是像仿射变换中的整数时,实现具有小的发送量的数据的正确变换。 图像预测编码装置具有图像压缩装置,通过对输入图像进行编码来压缩数据;坐标变换装置,其输出当从图像压缩装置解码压缩图像所获得的图像的坐标变换时产生的坐标数据 变换参数生成单元,其从坐标变换单元的坐标数据生成变换参数,预测图像生成单元,其通过使用变换参数从输入图像生成预测图像;以及发送单元,其发送压缩图像 和坐标数据。
    • 47. 发明申请
    • TIME-SERIES SIGNAL PREDICTING APPARATUS
    • 时间序列信号预测装置
    • WO1997025676A1
    • 1997-07-17
    • PCT/JP1997000010
    • 1997-01-07
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.OBARA, KazuakiWATANABE, TatsumiISAJI, Kazuhide
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • G06F17/00
    • G06F17/17
    • A time-series signal predicting apparatus which predicts future time-series data on the basis of past time-series data and present time-series data. Vector generation means generates n-dimensional vector data (n: natural number) on the basis of n time-series data inputted, and the data are stored in vector memory means. Another vector generation means generates (n + 1)-dimensional vector data on the basis of the past time-series data inputted, classifies similar vectors into L vector groups by using the vector data of up to the n-dimensions and stores them in vector group memory means. Next, the vector classification means classifies the inputted vector data into the vector groups, and vector selection means selects k vector data, in the order of similarity to the time-series data inputted later, from the vector group into which the vector data are classified. Past data extraction means extracts k data of the (n + 1)th dimension from (n + 1)-dimensional vectors belonging to the selected vector group, and outputs them with their similarities. Data predicting means predicts and outputs time-series data at the next time after the inputted time-series data on the basis of the k data so extracted, the inputted vector data and the similarities.
    • 一种时间序列信号预测装置,其基于过去的时间序列数据和当前时间序列数据来预测未来的时间序列数据。 矢量生成装置根据输入的n个时间序列数据生成n维矢量数据(n:自然数),数据存储在矢量存储装置中。 另一个向量生成装置根据输入的过去的时间序列数据生成(n + 1)维向量数据,通过使用直到n维的向量数据将类似向量分类为L个向量组,并将它们存储在向量 组记忆的意思。 接下来,矢量分类装置将输入的矢量数据分类为矢量组,矢量选择装置从向量数据被分类到的矢量组中以与后面输入的时间序列数据的相似度的顺序选择k个矢量数据 。 过去数据提取装置从属于所选向量组的(n + 1)维向量中提取第(n + 1)维的k个数据,并输出它们的相似度。 数据预测装置根据所提取的k数据,输入的矢量数据和相似度,在输入的时间序列数据之后的下一时间预测和输出时间序列数据。