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1. 发明公开

EP1367724A4 METHOD AND APPARATUS FOR COMPRESSION, METHOD AND APPARATUS FOR DECOMPRESSION, COMPRESSION/DECOMPRESSION SYSTEM, RECORED MEDIUM 审中-公开
标题翻译：方法和设备，用于解压缩，压缩/解压缩系统，记录介质压缩的方法和装置
公开(公告)号：EP1367724A4
公开(公告)日：2006-09-06
申请号：EP01908189
申请日：2001-03-01
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H03M7/30 , H04N7/24
CPC分类号： H03M1/661 , H03M7/30
摘要： Sample points (102a-102f) on the compression side where the absolute differentiation value is equal to or lower than a specified value in an input along signal (101), a set of discrete amplitude data in each sample point and timing data representative of the time intervals between sample points is obtained as compression data. On the decompression side, data for interpolating two pieces of amplitude data in two consecutive sample points based on the two pieces amplitude data and timing data between them is determined using amplitude data and timing data included in the compression data in order to obtain decompression data. A signal on the time axis can thereby be compressed/decompressed, as it is, on the time axis without requiring frequency conversion.

2. 发明公开

EP1195691A4 INTERPOLATION CIRCUIT 审中-公开
标题翻译：插值，KREISLAUF
公开(公告)号：EP1195691A4
公开(公告)日：2005-06-01
申请号：EP00925634
申请日：2000-05-11
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： G06F17/17 , G06T3/40 , H03H17/02 , H03H17/06 , G06F17/10
CPC分类号： G06T3/4007 , G06F17/17 , G06F17/175
摘要： An interpolation circuit capable of performing interpolation operation with a simple constitution. A 16-times oversampling from discrete data is performed by D flip-flops (4, 5). A first convolution operation is performed by D flip-flops (4-11) and an adder (12), on the result of which a second convolution operation is performed by D flip-flops (13-20) and an adder (21). Data interpolated along a quadratic function curve enveloping the discrete data is obtained from the adder (21).
摘要翻译：一种能够以简单结构进行插值运算的插值电路。离散数据的16次过采样由D frip-frops 4,5进行。第一卷积运算由D frip-frops 4至11和加法器12执行，其结果是通过以下步骤执行第二卷积运算： D frip-frops 13至20以及加法器21.从加法器21获得沿插补离散数据的二次函数曲线插入的数据。

3. 发明公开

EP1164703A4 DIGITAL/ANALOG CONVERTER 有权
标题翻译：式数字/模拟-WANDLER
公开(公告)号：EP1164703A4
公开(公告)日：2004-03-31
申请号：EP00981752
申请日：2000-12-15
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H03M1/66 , H03M3/02 , H03M3/04
CPC分类号： H03M3/504
摘要： A digital/analog converter for producing an output waveform having lens distortion without increasing the operating speed of components. A D/A converter comprises four D flip-flops (10-1 to 10-4), four multipliers (12-1 to 12-4), three adders (14-1 to 14-3), a D/A converter (16), and two integrating circuits (18-1, 18-2). Input data is fed sequentially to the four D flip-flops and held therein. The multiplier multiplies the data held in the respective D flip-flops by different multiplicators in the first half and second half of one clock period and the multiplication results are added by the three adders. A stepwise analog voltage corresponding to the sum is generated by the D/A converter (16) and integrated twice by means of the two integrating circuits (18-1, 18-2).
摘要翻译：目的在于提供一种能够产生具有较小失真的输出波形的数模转换器，而不增加部件的运行速度。 AD / A转换器包括四个D触发器10-1至10-4，四个乘法器12-1至12-4，三个加法器14-1至14-3，D / A转换器16和两个积分电路18 -1和18-2。输入数据被依次馈送到四个D触发器并保持在其中。乘法器在一个时钟周期的前半部分和后半部分中乘以各个D触发器中由不同乘法器保持的数据，乘法结果由三个加法器相加。对应于和的逐步模拟电压由D / A转换器16产生并通过两个积分电路18-1和18-2集成两次。

4. 发明公开

EP1276241A4 COMPRESSION METHOD AND DEVICE, DECOMPRESSION METHOD AND DEVICE, COMPRESSION/DECOMPRESSION SYSTEM, AND RECORDED MEDIUM 审中-公开
标题翻译：压缩方法和ûEINRICHTUNG，减压及装置，压缩/解压缩和记录介质
公开(公告)号：EP1276241A4
公开(公告)日：2006-06-07
申请号：EP01919862
申请日：2001-04-10
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H03M7/32 , H03M7/30
CPC分类号： H03M7/30
摘要： A compression device comprises an offset adding section (3) for converting signed digital data of a compression object to unsigned digital data by adding an offset value to the singed digital data, a rounding section (5) for reducing the number of bits per word by rounding the less significant bits of the unsigned digital data, and a timing synthesizer (6) and a compressing section (7) both for sampling the rounded digital data at time intervals between points where the polarities of the differential coefficients change and acquiring a combination of a set of discrete amplitude data values at the sampling points and a set of timing data values representing the time intervals between the sampling points. Consequently the signal on the time axis can be compressed/decompressed without frequency conversion as it is on the time axis.

5. 发明公开

EP1381030A4 COMPRESSION METHOD AND APPARATUS, DECOMPRESSION METHOD AND APPARATUS, COMPRESSION/DECOMPRESSION SYSTEM, PEAK DETECTION METHOD, PROGRAM, AND RECORDING MEDIUM 审中-公开
标题翻译：压缩方法和设备和装置减压，压缩/解压缩系统，峰值检测方法，程序和记录介质
公开(公告)号：EP1381030A4
公开(公告)日：2005-10-12
申请号：EP02724607
申请日：2002-04-11
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： G10L21/04 , G10L11/04 , G10L19/02 , H03M7/30 , G10L19/00
CPC分类号： G10L25/90 , G10L19/0204 , G10L19/09
摘要： With respect to data having periodicity to be compressed, windows of the same size are set for every two sections according to an interval of peaks appearing substantially periodically and processing for sorting sample data alternately among the set windows of the same size is sequentially performed, whereby a frequency of data having periodicity is replaced with an approximately half frequency without damaging reproducibility to original data at all to make it possible to apply compression processing to data of the replaced low frequency. If this sorting processing is applied to compression processing having a characteristic that a compression ratio is not increased in a high-frequency region, it becomes possible to improve a compression ratio without damaging a quality of reproduced data by decompression at all.

6. 发明公开

EP1198065A4 DIGITAL-ANALOG CONVERTER AND METHOD, AND DATA INTERPOLATION DEVICE AND METHOD 审中-公开
标题翻译：数字模拟转换器及其方法和插补数据的设备和hazzle
公开(公告)号：EP1198065A4
公开(公告)日：2005-06-01
申请号：EP00937298
申请日：2000-06-19
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： G06F17/17 , G06T3/40 , H03H17/02 , H03H17/06 , H03M3/00
CPC分类号： G06F17/17 , G06T3/4007
摘要： A digital-analog converting device and method for lowering the computational complexity and decreasing the circuit scale, and data interpolating device and method. The digital-analog converting device has a fundamental digital waveform generating section (10) for generating a fundamental waveform according to the values of inputted discrete data, a convolution calculating section (20) for carrying out oversampling and convolution of the output from the digital waveform generating section (10), and a D/A converting section (30) for-D/A converting the output from the convolution calculating section (20). The amplitude of the fundamental digital waveform is modulated according to the discrete data and the data is combined by convolution. Only by carrying out oversampling and convolution, continuous interpolation values are obtained.
摘要翻译：一种数字 - 模拟转换器和方法，用于降低计算复杂度和降低电路规模，及数据内插设备和方法。数字 - 模拟转换器具有根本的数字波形，用于产生基本波形雅丁到输入的离散数据的值产生部分10，卷积计算部20，用于从数字波形进行输出的过采样和卷积生成部10，和一个D /用于D / A A转换部30从卷积计算部分20中的基本数字波形的振幅的输出转换被调制gemäß离散数据和所述数据是通过卷积组合。只有进行过采样和卷积，连续插值获得。

7. 发明公开

EP1365516A4 COMPRESSION METHOD AND DEVICE, DECOMPRESSION METHOD AND DEVICE, COMPRESSION/DECOMPRESSION SYSTEM, RECORDING MEDIUM 审中-公开
标题翻译： “压缩方法和装置及设备解压缩，压缩/解压缩系统，记录介质”
公开(公告)号：EP1365516A4
公开(公告)日：2006-10-18
申请号：EP02715777
申请日：2002-01-17
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H04N19/50 , H03H17/06 , H03M7/30 , H04N19/59 , H04N19/593 , H04N19/80 , H04N19/85
CPC分类号： H03M7/30
摘要： Data to be compressed is differentiated for respective sampling points (S1-S20) and their absolute values are sequentially added to obtain differential total data (D1-D20). Then sampling points, where when data between two sampling points is subject to linear interpolation, an error between the interpolated data and the original data is up to a desired value, that is, points where even when data at each sampling point is reproduced only by decompression processing using linear interpolation, an error between the reproduced data and the original data is insignificant, are detected as sample points, and average differential value data between discrete sample points, timing data indicating time intervals between sample points, and polarity data of differential values at respective sampling points only are obtained as compression data, thereby improving the quality of data reproduced by decompressing with high compression ratio maintained.

8. 发明公开

EP1288912A4 SPEECH RECOGNITION METHOD AND DEVICE, SPEECH SYNTHESIS METHOD AND DEVICE, RECORDING MEDIUM 审中-公开
标题翻译： “语音识别过程和-GERDT，语音合成方法和-GERDT，记录介质”
公开(公告)号：EP1288912A4
公开(公告)日：2005-09-28
申请号：EP01919863
申请日：2001-04-10
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： G10L15/10 , G10L11/00 , G10L13/00 , G10L13/02 , G10L15/02
CPC分类号： G10L15/02 , G10L13/02
摘要： Provided are a data generating unit (3) that detects as a sample point a point at which a differential value obtained by differentiating an input speech signal satisfies a specified condition, and obtains discrete amplitude data at respective detected sample points and timing data representing time intervals between respective sample points, and a correlation computing unit (4) that computes correlation data by using the amplitude data and the timing data, whereby an input speech is recognized by matching correlation data generated for a certain input speech by the correlation computing unit (4) with correlation data similarly generated in advance for various speeches and stored in a data memory (6).

9. 发明公开

EP1289152A4 COMPRESSION METHOD AND APPARATUS, EXPANSION METHOD AND APPARATUS, COMPRESSION AND EXPANSION SYSTEM, RECORDED MEDIUM, PROGRAM 审中-公开
标题翻译：方法和装置进行压缩，扩张，压缩和膨胀系统，TANK和程序的方法和装置
公开(公告)号：EP1289152A4
公开(公告)日：2006-12-27
申请号：EP01932184
申请日：2001-05-22
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H03M7/30 , H03M13/00
CPC分类号： H03M13/6312 , G11B20/1876 , H03M7/30 , H03M13/00
摘要： Data on a compression object is sampled at time interval of sample points where the error between a data value on a straight line which joins two pieces of sample data and a sample data value which corresponds to it is within a desired value, so that a set of discrete amplitude data D1,D6,... at respective sample points and timing data which express time intervals between the respective sample points are acquired as compression data. Thereby, from among the large amount of sample data D1,D2,... included in the data on the compression object, only a set of amplitude data and timing data at sample points where the errors from the original data do not become larger even if linear interpolation is executed during the expansion processing can be acquired as compression data, so that the quality of reproduction data can be much improved while realizing a high compression ratio.

10. 发明公开

EP1164705A4 DIGITAL/ANALOG CONVERTER 有权
标题翻译：数字/模拟-WANDLER
公开(公告)号：EP1164705A4
公开(公告)日：2004-04-07
申请号：EP00981756
申请日：2000-12-15
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H03M1/66 , H03M3/00 , H03M3/02 , H03M1/00
CPC分类号： H03M3/508
摘要： A digital/analog converter which produces an output waveform having less distortion without increasing the operating speed of the components. The D/A converter comprises a multiplying section (1), four data holding sections (2-1 to 2-4), four data selectors (3-1 to 3-4), an adding section (4), a D/A converter (5), and two integrating circuits (6-1, 6-2). Input data is multiplied by four multiplicators by the multiplying section (1), and the four multiplication results are held, as one set, in the data holding sections. The data selectors read out data held in the four data holding sections in a predetermined order and generate step function data. The adding section adds the values of the step functions outputted from the four data selectors. Furthermore, a stepwise analog voltage corresponding to the sum is generated by the D/A converter (5) and integrated twice by means of the two integrating circuits (6-1, 6-2).
摘要翻译：目的在于提供一种能够产生具有较小失真的输出波形的数模转换器，而不增加部件的运行速度。 AD / A转换器包括乘法部分1，四个数据保持部分2-1至2-4，四个数据选择器3-1至3-4，加法部分4，D / A转换器5和两个积分电路6 -1和6-2。输入数据由乘法部分1乘以四个乘法器，四个相乘结果作为一组保存在数据保持部分中。数据选择器以预定顺序读出保存在四个数据保持部分中的数据，并生成步骤功能数据。添加部分添加从四个数据选择器输出的步骤功能的值。此外，由D / A转换器5产生对应于和的逐步模拟电压，并通过两个积分电路6-1和6-2集成两次。

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