Tone signal generator utilizing ancillary memories for electronic
musical instrument
    1.
    发明授权
    Tone signal generator utilizing ancillary memories for electronic musical instrument 失效
    音频信号发生器利用电子乐器的辅助存储器

    公开(公告)号:US5321198A

    公开(公告)日:1994-06-14

    申请号:US938435

    申请日:1992-08-31

    CPC分类号: G10H7/045

    摘要: A tone signal generator utilizing ancillary memories for an electronic musical instrument system has a source memory storing a long and continuous waveform data and two ancillary memories each capacity of which is smaller than that of the source memory. A portion of the continuous waveform data from the source memory is written into one of the ancillary memories. After completion of the writing operation, the written waveform data is read out for tone production, and simultaneously another portion of the continuous waveform data is written into the other of said ancillary memories. The repetition of such operation make it possible to reproduce a long and continuous tone waveform in spite of the small capacity of the ancillary memories.

    摘要翻译: 利用电子乐器系统的辅助存储器的音频信号发生器具有存储长而连续的波形数据的源存储器和每个容量小于源存储器的两个辅助存储器。 来自源存储器的连续波形数据的一部分被写入辅助存储器之一。 在写入操作完成之后,读出写入的波形数据用于音调产生,同时将另一部分连续波形数据写入所述辅助存储器中的另一个。 这种操作的重复使得可以再现长而连续的音调波形,尽管辅助存储器容量小。

    Tone signal processing device using a digital filter
    2.
    发明授权
    Tone signal processing device using a digital filter 失效
    音调信号处理装置采用数字滤波器

    公开(公告)号:US4907484A

    公开(公告)日:1990-03-13

    申请号:US115772

    申请日:1987-10-30

    IPC分类号: G10H1/12 G10H7/00

    摘要: At least two sets of filter coefficients corresponding to different filter characteristics are interpolated by using a control signal for controlling tone color as a parameter of interpolation. Filter coefficients obtained by the interpolation are supplied to a digital filter to determine its filter characteristics and an input tone signal is modified in accordance with the filter characteristics thus determined. Filter characteristics of diverse variation as compared with the number of prepared filter coefficients can thereby be realized. Further, timewise change of filter characteristics can be realized by changing a parameter of interpolation with lapse of time or changing two sets of filter coefficients to be interpolated with lapse of time. Designation of filter coefficients can be made by designating coordinate data of coordinates having at least two axes. In this case, filter coefficients can be changed by changing coordinate data of at least one axis in accordance with tone color control information whereby filter characteristics can be variably controlled.

    摘要翻译: 通过使用用于控制音色的控制信号作为内插参数来内插至少两组对应于不同滤波器特性的滤波器系数。 通过内插获得的滤波器系数被提供给数字滤波器以确定其滤波特性,并且根据如此确定的滤波器特性修改输入音调信号。 因此可以实现与制备的滤波器系数的数量相比的不同变化的滤波器特性。 此外,滤波器特性的时间变化可以通过改变经过时间的插值参数或者随着时间流逝改变要插值的两组滤波器系数来实现。 可以通过指定具有至少两个轴的坐标的坐标数据来进行滤波器系数的指定。 在这种情况下,可以通过根据音调控制信息改变至少一个轴的坐标数据来改变滤波器系数,从而可以可变地控制滤波器特性。

    Waveform generating apparatus for musical instrument
    4.
    发明授权
    Waveform generating apparatus for musical instrument 失效
    用于乐器的波形发生装置

    公开(公告)号:US5553011A

    公开(公告)日:1996-09-03

    申请号:US391466

    申请日:1995-02-21

    申请人: Yoshio Fujita

    发明人: Yoshio Fujita

    摘要: A waveform generating apparatus for generating waveforms which can be suitably employed in electronic musical instruments. The waveform generating apparatus calculates and generates regenerated sample data of a regenerated waveform having a desired pitch in synchronization with a constant regeneration sampling interval based on basic sample data which are sampled from a basic waveform by a predetermined basic sampling interval. The apparatus includes a phase generator, an operation mode control circuit and an interpolating circuit. The phase generator generates phase data which designates a phase of basic waveform. The operation mode control circuit supplies a calculation designating data. The interpolating circuit calculates regenerated sample data on the basis of basic sample data and phase data. Wherein, the method of the interpolation which is performed by the interpolating circuit is altered in response to calculation designating data. Thus, waveform can be regenerated accurately and with high fidelity over a wide range of pitches.

    摘要翻译: 一种用于产生可以适用于电子乐器的波形的波形发生装置。 波形发生装置基于从基本波形采样预定的基本采样间隔的基本采样数据,与恒定的再生采样间隔同步地计算并产生具有所需音调的再生波形的再生样本数据。 该装置包括相位发生器,操作模式控制电路和内插电路。 相位发生器产生指定基本波形相位的相位数据。 操作模式控制电路提供计算指定数据。 内插电路根据基本样本数据和相位数据计算再生样本数据。 其中,根据计算指定数据改变由内插电路执行的内插方法。 因此,可以在宽范围的间距上以高保真度准确地再生波形。

    Musical tone generating apparatus with parameter controller for changing
characteristics of musical tone signal
    5.
    发明授权
    Musical tone generating apparatus with parameter controller for changing characteristics of musical tone signal 失效
    具有用于改变乐音信号特性的参数控制器的音乐发生装置

    公开(公告)号:US5173567A

    公开(公告)日:1992-12-22

    申请号:US591811

    申请日:1990-10-02

    申请人: Yoshio Fujita

    发明人: Yoshio Fujita

    摘要: A musical tone generating apparatus is provided for an electronic musical instrument. The apparatus comprises a musical tone signal generating device and a parameter controller. The musical tone signal generating device generates a musical tone signal characterized by a tone parameter whose value is supplied from the parameter controller. The parameter controller comprises a target value generator and an interpolation device, which operate independently. The target value generator generates a target value of the tone parameter to the interpolation device, and the interpolation device interpolates between a present value of the tone parameter and the target value, so that the present value is renewed consecutively. The interpolation device generates an interrupt signal to the target value generator when the present value reaches the target value, so that an operation of the target value generator is interrupted then the target value generator operates to generate a new target value to the interpolation device in response to the interrupt signal. The parameter controller changes a characteristic of the musical tone signal such as a frequency characteristic or amplitude with respect to a lapse of time based on the present value of the tone parameter.

    摘要翻译: 为电子乐器提供乐音产生装置。 该装置包括乐音信号产生装置和参数控制器。 乐音信号产生装置产生由参数控制器提供的音调参数表征的乐音信号。 参数控制器包括独立操作的目标值发生器和内插装置。 目标值生成器对内插装置产生色调参数的目标值,并且内插装置在色调参数的当前值和目标值之间内插,使得当前值连续更新。 当当前值达到目标值时,内插装置产生一个到目标值发生器的中断信号,从而目标值发生器的操作被中断,目标值发生器操作以响应于内插装置产生新的目标值 到中断信号。 参数控制器基于音调参数的当前值,相对于经过的时间改变音调信号的特性,例如频率特性或振幅。

    Tone data recording and reproducing device
    6.
    发明授权
    Tone data recording and reproducing device 失效
    音频数据记录和再现设备

    公开(公告)号:US5668334A

    公开(公告)日:1997-09-16

    申请号:US471424

    申请日:1995-06-06

    IPC分类号: G10H1/00 G10H1/36 G10H7/00

    CPC分类号: G10H1/0041

    摘要: A record and reproduction controlling device is connected to a hard disk memory via a bus. This controlling device receives from a computer information necessary for read/write operation, on the basis of which the controlling device performs its own process to write to or read from the hard disk. The record and reproduction controlling device temporarily stores tone data read out from the hard disk memory into a first buffer memory and then transfers the tone data from the first buffer memory to a second buffer memory. The tone data thus stored in the second memory is then read out at a predetermined readout rate to reproduce a musical sound. It is possible to select either a first reproduction mode for reproducing a data file having tone data of plural channels recorded in an interleaved state, or a second reproduction mode for permitting a simultaneous reproduction of plural data files each having not-interleaved tone data recorded therein. The controlling device controls the tone data transfer from the first buffer memory to the second buffer memory depending on which of the reproduction modes is employed.

    摘要翻译: 记录和再现控制装置通过总线连接到硬盘存储器。 该控制装置从计算机接收读/写操作所需的信息,基于该信息,控制装置执行其自己的写入或从硬盘读取的处理。 记录和再现控制装置将从硬盘存储器读出的音调数据临时存储到第一缓冲存储器中,然后将音调数据从第一缓冲存储器传送到第二缓冲存储器。 这样存储在第二存储器中的音调数据然后以预定的读出速率读出,以再现音乐声音。 可以选择用于再现具有以交错状态记录的多个频道的乐音数据的数据文件的第一再现模式,或者允许同时再现多个记录在其中的未交织音调数据的数据文件的第二再现模式 。 控制装置根据使用哪种再现模式来控制从第一缓冲存储器到第二缓冲存储器的色调数据传送。

    Photomultiplier
    7.
    发明授权
    Photomultiplier 失效
    光电倍增管

    公开(公告)号:US5598061A

    公开(公告)日:1997-01-28

    申请号:US399989

    申请日:1995-03-07

    CPC分类号: H01J43/06

    摘要: A photomultiplier includes a photoelectric surface for photoelectrically converting incident light and emitting electrons, and a plurality of stages of dynodes for multiplying the electrons. The photomultiplier includes a first dynode array including box-and-grid dynodes arranged in a vessel and a second dynode array including in-line dynodes arranged in the vessel. A dynode having a curved secondary electron emitting layer opposes both a secondary electron emitting layer of a last stage dynode of the first dynode array and a secondary electron emitting layer of a first-stage dynode of the second dynode array.

    摘要翻译: 光电倍增管包括用于光电转换入射光并发射电子的光电表面,以及用于乘以电子的多级倍增电极。 光电倍增管包括第一倍增极阵列,其包括布置在容器中的盒式和栅格倍增电极和包括布置在容器中的直列倍增电极的第二倍增电极阵列。 具有弯曲的二次电子发射层的倍增极与第一倍增电极阵列的最后一级倍增电极的二次电子发射层和第二倍增电极阵列的第一级倍增电极的二次电子发射层相反。

    Filter apparatus for an electronic musical instrument
    8.
    发明授权
    Filter apparatus for an electronic musical instrument 失效
    电子乐器的过滤装置

    公开(公告)号:US5583309A

    公开(公告)日:1996-12-10

    申请号:US131856

    申请日:1993-10-05

    申请人: Yoshio Fujita

    发明人: Yoshio Fujita

    CPC分类号: G10H1/125 G10H2250/101

    摘要: A musical tone generating apparatus is provided for a keyboard electronic musical instrument. The apparatus consists of a musical tone source, a coefficient generator, a digital filter and so on. The coefficient generator generates at least one time dependence coefficient, and applies It to output of the digital filter. The parameter controller changes at least one parameter, which designates tone color of the musical tone, in accordance with the time dependent coefficient to thereby realize time-variant changing rate of envelope of musical tone. And, the coefficient generator and the parameter controller are used by means of time sharing technique. That is, the coefficient is used as plural units, wherein each unit generates a coefficient in each stage, and the digital filter is also used as plural units. Each digital filter unit changes a parameter of tone color of the musical tone in accordance with the coefficient supplied thereto.

    摘要翻译: 提供一种用于键盘电子乐器的乐音产生装置。 该装置由音调源,系数发生器,数字滤波器等构成。 系数发生器产生至少一个时间依赖系数,并将其应用于数字滤波器的输出。 参数控制器根据时间相关系数改变至少一个指定乐音的音色的参数,从而实现乐音包络的时变变化率。 而且,系数发生器和参数控制器是通过时间分配技术来实现的。 也就是说,系数用作多个单位,其中每个单元在每个阶段中产生系数,并且数字滤波器也用作多个单元。 每个数字滤波器单元根据提供给它的系数来改变音调的色调参数。

    Tone data recording and reproducing device
    9.
    发明授权
    Tone data recording and reproducing device 失效
    音频数据记录和再现设备

    公开(公告)号:US5539145A

    公开(公告)日:1996-07-23

    申请号:US466605

    申请日:1995-06-06

    IPC分类号: G10H1/00 G10H1/36 G10H7/00

    CPC分类号: G10H1/0041

    摘要: A record and reproduction controlling device is connected to a hard disk memory via a bus. This controlling device receives from a computer information necessary for read/write operation, on the basis of which the controlling device performs its own process to write to or read from the hard disk. The record and reproduction controlling device temporarily stores tone data read out from the hard disk memory into a first buffer memory and then transfers the tone data from the first buffer memory to a second buffer memory. The tone data thus stored in the second memory is then read out at a predetermined readout rate to reproduce a musical sound. It is possible to select either a first reproduction mode for reproducing a data file having tone data of plural channels recorded in an interleaved state, or a second reproduction mode for permitting a simultaneous reproduction of plural data files each having not-interleaved tone data recorded therein. The controlling device controls the tone data transfer from the first buffer memory to the second buffer memory depending on which of the reproduction modes is employed.

    摘要翻译: 记录和再现控制装置通过总线连接到硬盘存储器。 该控制装置从计算机接收读/写操作所需的信息,基于该信息,控制装置执行其自己的写入或从硬盘读取的处理。 记录和再现控制装置将从硬盘存储器读出的音调数据临时存储到第一缓冲存储器中,然后将音调数据从第一缓冲存储器传送到第二缓冲存储器。 这样存储在第二存储器中的音调数据然后以预定的读出速率读出,以再现音乐声音。 可以选择用于再现具有以交错状态记录的多个频道的乐音数据的数据文件的第一再现模式,或者允许同时再现多个记录在其中的未交织音调数据的数据文件的第二再现模式 。 控制装置根据使用哪种再现模式来控制从第一缓冲存储器到第二缓冲存储器的色调数据传送。

    Microchannel plate, gas proportional counter and imaging device
    10.
    发明授权
    Microchannel plate, gas proportional counter and imaging device 有权
    微通道板,气体比例计数器和成像装置

    公开(公告)号:US08134129B2

    公开(公告)日:2012-03-13

    申请号:US11989537

    申请日:2006-07-28

    IPC分类号: G01T1/00

    摘要: An object of the present invention is to provide a microchannel plate having excellent characteristics which enable to attain both high luminance and high resolution at the same time, a gas proportional counter using such a microchannel plate and an imaging device. The microchannel plate according to the present invention comprises a base body provided with a plurality of through holes (13) and having an insulating property, and is arranged in a gas atmosphere mainly containing an inert gas to constitute a proportional counter. The base body has photoelectric converter portions (1a, 1b) formed on at least inner walls of the plurality of through holes (13).

    摘要翻译: 本发明的目的是提供一种具有优异特性的微通道板,其能够同时获得高亮度和高分辨率,使用这种微通道板和成像装置的气体比例计数器。 根据本发明的微通道板包括设置有多个通孔(13)并具有绝缘性的基体,并且布置在主要包含惰性气体的气体气氛中以构成比例计数器。 基体具有形成在多个通孔(13)的至少内壁上的光电转换部(1a,1b)。