公开(公告)号：US5625158A

公开(公告)日：1997-04-29

申请号：US360208

申请日：1994-12-20

申请人： Tetsuji Ichiki

发明人： Tetsuji Ichiki

IPC分类号： G10H1/02 ,  G10H1/18 ,  G10H7/00 ,  G10H7/02 ,  G10H7/08

CPC分类号： G10H1/187 ,  G10H7/006 ,  G10H7/02 ,  G10H7/08 ,  G10H2250/161 ,  G10H2250/601 ,  G10H2250/621

摘要： A musical tone generating apparatus has an waveform memory which stores original waveform data. One or two tone generating chips are be able to fixed on a print circuit board as elements of the musical tone generating apparatus. Each tone generating chip, provided on the print circuit board, sequentially generates waveform data of a plurality of musical tones at sampling periods having a predetermined length under time division control. Each tone generating chip sequentially carries out tone generating operations to generate the waveform data based on the original waveform data during time division channels which are obtained by dividing each one of the sampling periods when the musical tone generating section is used for tone generation. In the case where one tone generating chip is employed on the print circuit board, N samples of the original waveform data are read out from the waveform memory during each one of the time division channels to be used by the tone generating chip. In the case where two tone generating chips are employed on the print circuit board, the number of the original waveform data read out from the waveform memory for each tone generating chip during each time division channel is decreased from N to M which is less than N.

摘要翻译： 乐音产生装置具有存储原始波形数据的波形存储器。 一个或两个音调生成芯片能够固定在作为乐音产生装置的元件的打印电路板上。 设置在打印电路板上的每个音调生成芯片在时分控制下以具有预定长度的采样周期顺序地产生多个乐音的波形数据。 每个乐音产生芯片依次执行乐音产生操作，以便在通过将乐音产生部分用于音调产生时将采样周期中的每一个获得的时分信道中的原始波形数据生成波形数据。 在印刷电路板上使用一个音调生成芯片的情况下，在由音调生成芯片使用的每个时分信道中，从波形存储器中读出原始波形数据的N个样本。 在印刷电路板上使用两个音调生成芯片的情况下，在每个时分信道期间从每个音调生成芯片的波形存储器读出的原始波形数据的数目从N减小到小于N的M 。

公开(公告)号：US5416264A

公开(公告)日：1995-05-16

申请号：US97163

申请日：1993-07-23

申请人： Hiroyuki Toda ,  Tetsuji Ichiki

发明人： Hiroyuki Toda ,  Tetsuji Ichiki

IPC分类号： G10H7/06 ,  G10H1/057 ,  G10H7/04

CPC分类号： G10H7/06 ,  G10H2250/545

摘要： A waveform-forming device has a waveform memory storing a plurality of blocks of waveform samples representative of a waveform of a musical tone. Each block is formed of at least one non-compressed waveform sample and a plurality of compressed waveform samples. A pitch of a musical tone to formed is taken in. The waveform samples are read out block by block from the waveform memory, based on the pitch taken in. The compressed waveform samples contained in each block are converted into non-compressed waveform samples. The waveform of the musical tone is formed from the at least one non-compressed waveform sample of each block and the non-compressed waveform samples obtained by the conversion.

摘要翻译： 波形形成装置具有存储表示乐音波形的多个波形样本块的波形存储器。 每个块由至少一个非压缩波形样本和多个压缩波形样本形成。 将形成的音调的间距取决于波形存储器中的波形采样中的波形，每个块中包含的压缩波形样本被转换为非压缩波形样本。 乐音的波形由每个块的至少一个非压缩波形样本和通过转换获得的非压缩波形样本形成。

公开(公告)号：US4785703A

公开(公告)日：1988-11-22

申请号：US29605

申请日：1987-03-24

申请人： Tetsuji Ichiki

发明人： Tetsuji Ichiki

IPC分类号： G10H1/00 ,  G10H1/26 ,  G10H1/36 ,  G10H1/42 ,  G10H7/00 ,  G10F1/00

CPC分类号： G10H1/42 ,  Y10S84/12

摘要： An automatic accompaniment apparatus includes an accompaniment pattern generation unit for generating a plurality of accompaniment patterns which represent timing of generation of a plurality of accompaniment tones to be generated respectively. The accompaniment patterns correspond to accompaniment tones. The apparatus also includes a tone input unit for inputting the accompaniment tones to be generated and for changing the accompaniment tones into a plurality of tone date respectively, a first memory, second memory having a plurality of storage locations corresponding to the accompaniment patterns respectively, a writing unit for writing sequentially the tone data in the first memory and for writing a plurality of area information identifying respectively storage areas of the first memory in which the tone data are stored, into corresponding ones of the storage locations, and a reading out unit for reading out the area information from the storage locations corresponding to the accompaniment patterns and for reading out the tone data from the storage area identified by the area information read out. The accompaniment tones can be produced in accordance with the tone data read out.

摘要翻译： 一种自动伴奏装置，包括伴奏图案生成单元，用于生成分别表示要生成的多个伴奏音的定时的多个伴奏模式。 伴奏模式对应于伴奏音。 该装置还包括一个音调输入单元，用于输入要产生的伴奏音和用于分别将伴奏音调变成多个音调日期;第一存储器，第二存储器，分别具有对应于伴奏模式的多个存储位置; 写入单元，用于顺序地写入第一存储器中的色调数据，并将用于识别分别存储有音调数据的第一存储器的存储区域的多个区域信息写入相应的存储位置;以及读出单元， 从与伴奏图案相对应的存储位置读出区域信息，并从由读出的区域信息识别的存储区域中读出音调数据。 可以根据读出的音调数据产生伴奏音。

公开(公告)号：US5949011A

公开(公告)日：1999-09-07

申请号：US222394

申请日：1998-12-29

申请人： Tetsuji Ichiki

发明人： Tetsuji Ichiki

IPC分类号： G10H1/02 ,  G06F13/16 ,  G06F13/36 ,  G10H7/00 ,  G10H7/02

CPC分类号： G10H7/002 ,  G10H7/004 ,  G10H2240/311

摘要： A tone generator chip is formed of a semiconductor substrate and is configurable under different operation modes in combination with memories accessible via external buses for generating a tone by using the memories. In the tone generator chip, a sound source block is controllable for generating a tone and includes a reading circuit for reading waveform data to generate the tone and a digital signal processing circuit for processing the waveform data to impart an effect to the tone. A central processing unit is integrated in the semiconductor substrate together with the sound source block for controlling the sound source block. A first access manager manages an access status from each of the reading circuit, the digital signal processing circuit and the central processing unit to a first external bus for access to a memory. A second access manager manages an access status from each of the reading circuit, the digital signal processing circuit and the central processing unit to a second external bus provided separately from the first external bus for access to another memory. A mode control designates a specific one of the different operation modes to enable the first access manager and the second access manager to set the respective access statuses, thereby configuring the reading circuit, the digital signal processing circuit and the central processing unit according to the specific operation mode in combination with the memories configured corresponding to the specific operation mode.

摘要翻译： 音调发生器芯片由半导体衬底形成，并且可配置在不同的操作模式下，与通过外部总线可访问的存储器组合，以通过使用存储器产生音调。 在音调发生器芯片中，声源块可控制以产生音调，并且包括用于读取波形数据以产生音调的读取电路和用于处理波形数据以对音调产生影响的数字信号处理电路。 中央处理单元与用于控制声源块的声源块一起集成在半导体衬底中。 第一访问管理器管理来自读取电路，数字信号处理电路和中央处理单元的访问状态到用于访问存储器的第一外部总线。 第二访问管理器管理从每个读取电路，数字信号处理电路和中央处理单元的访问状态到与第一外部总线分开设置的第二外部总线，用于访问另一个存储器。 模式控制指定不同操作模式中的特定一种，以使得第一访问管理器和第二访问管理器能够设置各自的访问状态，从而根据具体的方式配置读取电路，数字信号处理电路和中央处理单元 操作模式与对应于特定操作模式配置的存储器组合。

公开(公告)号：US5094136A

公开(公告)日：1992-03-10

申请号：US460502

申请日：1990-01-03

申请人： Masaki Kudo ,  Tokio Ogi ,  Tsutomu Yanase ,  Tetsuji Ichiki

发明人： Masaki Kudo ,  Tokio Ogi ,  Tsutomu Yanase ,  Tetsuji Ichiki

IPC分类号： G10H1/08 ,  G10H7/00

CPC分类号： G10H7/008 ,  G10H1/08 ,  G10H2250/035

摘要： Two tone generators having different tone generation systems, e.g., PCM type and FM type, are provided. There are tone generation modes designating combination of tone generation in these tone generators and one can be selected from among them. There are, for example, a simple mixing mode, a delay mode in which start of tone generation in one tone generator is delayed from that in the other and a crossfade mode in which a tone signal is generated first in one tone generator and tone generation is switched to the other tone generator and envelope levels of output tone signals of the two tone generators are crossfaded during a switching period. Delay time in the delay mode and switching time in the crossfade mode can be variably controlled in accordance with a key scaling and/or other factors. A tone may be generated at a sampling frequency synchronized with a pitch in one tone generator and at a sampling frequency which is not synchronized with the pitch in the other tone generator. A phase of one cycle may be divided into plural sections and a complex waveform can be generated by converting the phase address signal in accordance with a function peculiar to each phase section and accessing a waveform memory with the converted address signal.

公开(公告)号：US4924745A

公开(公告)日：1990-05-15

申请号：US297610

申请日：1989-01-13

申请人： Mamoru Kimpara ,  Tetsuji Ichiki

发明人： Mamoru Kimpara ,  Tetsuji Ichiki

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

CPC分类号： G10H1/0041

摘要： An automatic performance recording apparatus for storing performance data for an automatic performance in a performance data memory means such as a RAM is disclosed. In order to allow easy and appropriate recording and correction of performance data, according to this invention, a specific recording mode for starting recording in synchronism with generation of first key-on data indicating generation of a musical tone is set. The specific recording modes include a synchronous recording mode in which a recording operation of performance data is suspended in an operation stop state, and is started simultaneously with generation of the key-on data, a re-recording mode in which a recording operation of performance data is suspended in the operation stop state, and is restarted from the beginning of a previously recorded section simultaneously with generation of the key-on data, and a running recording mode in which a recording operation of performance data is suspended in a playback state, and is started simultaneously with generation of the key-on data.

摘要翻译： 公开了一种用于在诸如RAM的演奏数据存储装置中存储用于自动演奏的演奏数据的自动演奏记录装置。 为了容易且适当地记录和校正演奏数据，根据本发明，设置与产生指示乐曲的生成的第一按键数据同步地开始记录的特定记录模式。 特定的记录模式包括同步记录模式，其中演奏数据的记录操作被暂停在操作停止状态，并且同时产生按键数据开始，重新记录模式，其中执行记录操作 数据被暂停在操作停止状态，并且在产生按键数据的同时与先前记录的部分的开始重新开始，以及在播放状态下暂停演奏数据的记录操作的行驶记录模式， 并且与生成键入数据同时开始。

公开(公告)号：US4882963A

公开(公告)日：1989-11-28

申请号：US71645

申请日：1987-07-09

申请人： Tetsuji Ichiki

发明人： Tetsuji Ichiki

IPC分类号： G10H1/18 ,  G10H1/00 ,  G10H5/00 ,  G10H7/00 ,  G10H7/02

CPC分类号： G10H5/005 ,  G10H7/02

摘要： An electronic musical instrument of the sampling type is provided. The electronic musical instrument comprises a memory having a plurality of storage areas, and operates in one of full sampling, part sampling, full play and part play modes. Sampling data of waveform of a tone are stored into addresses of all the storage areas in the full sampling mode, and are stored into addresses of one of the storage areas in the part sampling mode. Thus, only one waveform is sampled and stored in the full sampling mode, whereas a plurality of waveforms can be sampled and stored in the part sampling mode. In the full play mode, the whole sampling data are read from the storage areas to form a tone, so that the tone can have a complicated waveform if the sampling data have been stored in the memory in the part sampling mode. In the part play mode, the sampling data are read from the corresponding storage area, so that the tone can be formed from a portion of a waveform if the waveform has been stored in the full sampling mode.

摘要翻译： 提供了采样类型的电子乐器。 电子乐器包括具有多个存储区域的存储器，并且以全采样，部分采样，全播和部分播放模式之一进行操作。 音调波形的采样数据被存储在全采样模式的所有存储区域的地址中，并且被存储在部分采样模式中的一个存储区域的地址中。 因此，只有一个波形被采样并存储在全采样模式，而多个波形可以采样和存储在部分采样模式。 在完全播放模式下，从存储区域读取整个采样数据以形成一个音调，如果采样数据已经以部分采样模式存储在存储器中，则该音调可以具有复杂的波形。 在部分播放模式中，从对应的存储区域读取采样数据，如果波形已经以全采样模式存储，则可以从波形的一部分形成色调。