Digital audio signal generating apparatus
    1.
    发明授权
    Digital audio signal generating apparatus 失效
    数字音频信号发生装置

    公开(公告)号:US5111530A

    公开(公告)日:1992-05-05

    申请号:US428842

    申请日:1989-10-30

    IPC分类号: G10H1/00 G10H1/02 G10H7/00

    摘要: A digital audio signal generating apparatus suitable for the application to electronic musical instruments, sound effect generators for amusement machines and the like. This digital audio signal generating apparatus has a signal processing section and a memory used to perform a speech synthesis, wherein the signal processing section utilizes a vacant area of the memory to perform a delay processing to add a reverberation sound. Thus, the number of required memories can be reduced and the arrangement of the apparatus can be simplified.

    摘要翻译: 适用于电子乐器的应用的数字音频信号发生装置,娱乐机的音效发生器等。 该数字音频信号发生装置具有用于执行语音合成的信号处理部分和存储器,其中信号处理部分利用存储器的空闲区域执行延迟处理以增加混响声音。 因此,可以减少所需存储器的数量,并且可以简化装置的布置。

    Apparatus for generating, recording or reproducing sound source data
    2.
    发明授权
    Apparatus for generating, recording or reproducing sound source data 失效
    用于生成,记录或重现声源数据的装置

    公开(公告)号:US5086475A

    公开(公告)日:1992-02-04

    申请号:US436423

    申请日:1989-11-14

    摘要: An apparatus for looping or data-compressing sampled waveform data digitized from musical sound signals (or the like) to produce sound source data, recording the sound source data on a storage medium, and reading out the sound source data from the storage medium for reproduction. To eliminate amplitude discontinuities at repetition points during looping, two connection samples of repetitive waveform portions having values closest to each other are selected from actual samples and interpolated samples. An interpolation filter performs multiple oversampling to produce the interpolated samples. The interpolation filter includes a filter for each degree of oversampling, and all the filters have the same amplitude characteristics. By asserting pulse code modulated data at the beginning portion of a looping domain, adverse compression effects can be avoided without the necessity of providing compression parameters. When reading out sound source data from the storage medium, a data start address and a looping start address are loaded, in that order, into an address generator. A discriminating flag indicating the presence or absence of the looping domain and a discriminating flag indicating the end of the sound source data can be included in the sound source data to facilitate control of looping or end of reproduction.

    摘要翻译: 一种用于循环或数据压缩从音乐声音信号(或类似数字)数字化的采样波形数据的装置,以产生声源数据,将声源数据记录在存储介质上,并从存储介质读出声源数据以进行再现 。 为了消除在循环过程中的重复点处的振幅不连续性,从实际样本和内插样本中选择具有彼此最接近的值的重复波形部分的两个连接样本。 内插滤波器执行多次过采样以产生内插采样。 内插滤波器包括用于每次过采样度的滤波器,并且所有滤波器具有相同的幅度特性。 通过在循环域的开始部分断言脉冲编码调制数据,可以避免不利的压缩效应,而不需要提供压缩参数。 当从存储介质读出声源数据时,依次将数据起始地址和循环起始地址加载到地址生成器中。 指示循环域的存在或不存在的识别标志和指示声源数据结束的鉴别标记可以包括在声源数据中,以便于控制循环或再现结束。

    Signal processing method and sound source data forming apparatus
    3.
    发明授权
    Signal processing method and sound source data forming apparatus 失效
    信号处理方法和声源数据形成装置

    公开(公告)号:US5430241A

    公开(公告)日:1995-07-04

    申请号:US438088

    申请日:1989-11-16

    摘要: A method for processing a digital signal produced by digitizing an analog signal such as a musical instrument sound signal, and an apparatus for producing sound source data. When the input signal contains a periodically repetitive waveform portion, the fundamental frequency and its high harmonic components of the input signal is extracted by a comb filter prior to signal processing which takes advantage of the periodicity of the input signal. The fundamental frequency or pitch is detected by performing Fourier transform to produce frequency components, phase matching these frequency components and performing inverse Fourier transform. When extracting a repetitive waveform portion or so-called looping domain, such looping domain having the highest similarity in waveform in the vicinity of both ends of the domain is selected. When the bit compression of digital signal data is performed by selecting a filter with blocks each consisting of plural samples as units, a pseudo signal is affixed to the input signal, before the start point of the input signal, which pseudo signal will cause a filter of the lowest order to be selected. The looping domain is set so as to be a whole number multiple of the block which serves as the unit for bit compression, and the parameters of the looping start block are formed on the basis of data of the start and the end blocks. By applying a part or the whole of the signal processing method to a sound source data forming apparatus, sound source data may be formed which is reduced in the looping noise and error caused by data compression and which is of superior sound quality.

    摘要翻译: 一种用于处理通过数字化诸如乐器声音信号的模拟信号产生的数字信号的方法和用于产生声源数据的装置。 当输入信号包含周期性重复的波形部分时,在信号处理之前,由梳状滤波器提取输入信号的基频及其高次谐波分量,这利用了输入信号的周期。 通过执行傅里叶变换以产生频率分量,相位匹配这些频率分量并执行逆傅里叶变换来检测基频或音调。 当提取重复波形部分或所谓的循环域时,选择在该域的两端附近具有最高波形相似度的循环域。 当通过选择具有由多个样本组成的块的滤波器来执行数字信号数据的位压缩时,在输入信号的起始点之前将伪信号附加到输入信号,该伪信号将导致滤波器 的最低订单选择。 循环域被设置为作为用于位压缩的单位的块的整数倍,并且循环开始块的参数基于起始和结束块的数据形成。 通过将一部分或全部的信号处理方法应用于声源数据形成装置,可以形成声源数据,其减少了由数据压缩引起的循环噪声和误差,并且具有优良的音质。

    Signal processing method and sound source data forming apparatus
    4.
    发明授权
    Signal processing method and sound source data forming apparatus 失效
    信号处理方法和声源数据形成装置

    公开(公告)号:US5519166A

    公开(公告)日:1996-05-21

    申请号:US330329

    申请日:1994-10-27

    摘要: A method for processing a digital signal produced by digitizing an analog signal such as a musical instrument sound signal, and an apparatus for producing sound source data. When the input signal contains a periodically repetitive wave form portion, the fundamental frequency and its high harmonic components of the input signal is extracted by a comb filter prior to signal processing which takes advantage of the periodicity of the input signal. The fundamental frequency or pitch is detected by performing Fourier transform to produce frequency components, phase matching these frequency components and performing inverse Fourier transform. When extracting a repetitive waveform portion or so-called looping domain, such looping domain having the highest similarity in waveform in the vicinity of both ends of the domain is selected. When the bit compression of digital signal data is performed by selecting a filter with blocks each consisting of plural samples as units, a pseudo signal is affixed to the input signal, before the start point of the input signal, which pseudo signal will cause a filter of the lowest order to be selected. The looping domain is set so as to be a whole number multiple of the block which serves as the unit for bit compression, and the parameters of the looping start block are formed on the basis of data of the start and the end blocks. By applying a part or the whole of the signal processing method to a sound source data forming apparatus, sound source data may be formed which is reduced in the looping noise and error caused by data compression and which is of superior sound quality.

    摘要翻译: 一种用于处理通过数字化诸如乐器声音信号的模拟信号产生的数字信号的方法和用于产生声源数据的装置。 当输入信号包含周期性重复的波形部分时,在信号处理之前通过梳状滤波器提取输入信号的基频和其高次谐波分量,这利用了输入信号的周期。 通过执行傅里叶变换以产生频率分量,相位匹配这些频率分量并执行逆傅里叶变换来检测基频或音调。 当提取重复波形部分或所谓的循环域时,选择在该域的两端附近具有最高波形相似度的循环域。 当通过选择具有由多个样本组成的块的滤波器来执行数字信号数据的位压缩时,在输入信号的起始点之前将伪信号附加到输入信号,该伪信号将导致滤波器 的最低订单选择。 循环域被设置为作为用于位压缩的单位的块的整数倍,并且循环开始块的参数基于起始和结束块的数据形成。 通过将一部分或全部的信号处理方法应用于声源数据形成装置,可以形成声源数据,其减少了由数据压缩引起的循环噪声和误差,并且具有优良的音质。

    IMAGE DISPLAY SYSTEM
    6.
    发明申请
    IMAGE DISPLAY SYSTEM 有权
    图像显示系统

    公开(公告)号:US20120281913A1

    公开(公告)日:2012-11-08

    申请号:US13519461

    申请日:2010-12-28

    IPC分类号: G06K9/62

    摘要: Provided is an image display system which allows a user to browse an object of interest in a background as if she/he picks up and moves the object of interest by hand, and allows the user to visually enter inside a specified object placed on the background. The image display system of the present invention is characterized in that it has a mother database (MDB) reconfigured from a database for configuring an object, wherein an image (a two-dimensional image, a three-dimensional space or a four-dimensional space) based on the MDB, in an entire image, is substituted for an object subjected to the object recognition based on the MDB, and synthetically displayed.

    摘要翻译: 提供了一种图像显示系统,其允许用户在背景中浏览感兴趣对象,如同他/他用手拾取并移动感兴趣的对象,并且允许用户可视地输入放置在背景上的指定对象内 。 本发明的图像显示系统的特征在于,具有从用于配置对象的数据库重新配置的母库(MDB),其中,图像(二维图像,三维空间或四维空间 )基于MDB,在整个图像中,代替基于MDB进行对象识别的对象,并且合成显示。

    Electronic device
    8.
    发明申请
    Electronic device 有权
    电子设备

    公开(公告)号:US20080310082A1

    公开(公告)日:2008-12-18

    申请号:US11631539

    申请日:2006-05-12

    IPC分类号: H05K7/00

    摘要: An entertainment device or other electronic device having an outward shape improved in functionality compared with that in the related art are provided. The electronic device includes a main housing that is formed in an approximately elliptical cylinder form, and disposed in a such a manner that a longitudinal direction is approximately horizontal to a setting surface, and has medium insertion ports for inserting a portable information storage medium such as an optical disk, and an approximately boxlike base portion attached to a lower portion of the main housing.

    摘要翻译: 提供了与现有技术相比具有改善功能的外形的娱乐装置或其他电子装置。 该电子设备包括主壳体,其形成为大致椭圆柱形,并且以使纵向方向与设置表面近似水平的方式设置,并且具有用于插入便携式信息存储介质的介质插入口,例如 光盘,以及附接到主壳体的下部的近似盒状的基部。