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公开(公告)号：US5046042A
公开(公告)日：1991-09-03
申请号：US846925
申请日：1986-03-24
CPC分类号： G06F3/0601 , G06F5/06 , G06F2003/0692
摘要： A data processing system processes digital information representing, for example, an image and supplied at a lower transfer rate from a data source such as an optical disc unit, to produce data in such a form as to be efficiently used by a device of a higher transfer rate such as a CRT display unit. The digital information includes a plurality of groups of data each representing, for example, a portion or a window of the image and added with control data for defining characteristics thereof. While the digital information is read out at a constant entire transfer rate, the plurality of groups of data are transferred at respective transfer rates which vary with a lapse of time. The control data of each group of data is separated therefrom, and the group of data and the separated control data are stored into first and second memories. The groups of data stored in the first memory are processed in accordance with the results of analysis of the control data stored in the second memory to form data in such a form as to be efficiently used by the device of the higher transfer rate.
摘要翻译： 数据处理系统处理表示例如图像的数字信息，并从诸如光盘单元的数据源以较低的传输速率提供，以产生数据，以便由更高级的设备有效地使用 传输速率如CRT显示单元。 数字信息包括多个数据组，每组表示例如图像的一部分或窗口，并且添加有用于定义其特征的控制数据。 当以恒定的整个传送速率读出数字信息时，以随时间流逝变化的各个传送速率传送多组数据。 每组数据的控制数据被分离，数据组和分离的控制数据被存储到第一和第二存储器中。 存储在第一存储器中的数据组根据存储在第二存储器中的控制数据的分析结果进行处理，以形成数据，以便由较高传送速率的设备有效地使用。
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公开(公告)号：US4804948A
公开(公告)日：1989-02-14
申请号：US77984
申请日：1987-07-27
CPC分类号： G09G5/026
摘要： A video display control system displays a video image composed of a plurality of display elements on a screen of a video display unit. The system comprises a memory (VRAM) for storing a plurality of color codes each representing at least one display element and a video display controller (VDP). The VDP comprises a mode register for selecting one of normal display and transparency processing modes, display processing circuit for reading the color codes from the VRAM, a backdrop color register for storing a color code such as one representing a backdrop color, a detection circuit for detecting a predetermined color code from the color codes read by the display processing circuit, and a selector controlled by an output of the detection circuit. In the normal display mode, the selector outputs all color codes read by the display processing circuit to the display unit. In the transparency processing mode, the selector outputs the color codes read by the display processing circuit to the display unit when the predetermined color code is not detected, and outputs the color code contained in the backdrop color register to the display unit when the predetermined color code is detected. The VDP further comprises another detection circuit for detecting a second predetermined color code from the color codes outputted from the selector to output a control signal. And if the second predetermined color code is detected in the transparency processing mode, the display unit displays an image in accordance with an external video signal.
摘要翻译： 视频显示控制系统在视频显示单元的屏幕上显示由多个显示元件组成的视频图像。 该系统包括用于存储代表至少一个显示元件和视频显示控制器（VDP）的多个颜色代码的存储器（VRAM）。 VDP包括用于选择正常显示和透明度处理模式之一的模式寄存器，用于从VRAM读取颜色代码的显示处理电路，用于存储诸如表示背景颜色的颜色代码的颜色代码的背景颜色寄存器，用于 从由显示处理电路读取的颜色代码检测预定的颜色代码，以及由检测电路的输出控制的选择器。 在正常显示模式下，选择器将由显示处理电路读出的所有颜色代码输出到显示单元。 在透明度处理模式中，当未检测到预定颜色代码时，选择器将由显示处理电路读取的颜色代码输出到显示单元，并且当预定颜色在显示单元中输出包含在背景颜色寄存器中的颜色代码 检测到代码。 VDP还包括用于从从选择器输出的颜色代码中检测第二预定颜色代码以输出控制信号的另一个检测电路。 并且如果在透明度处理模式中检测到第二预定颜色代码，则显示单元根据外部视频信号显示图像。
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公开(公告)号：US4660070A
公开(公告)日：1987-04-21
申请号：US736828
申请日：1985-05-22
摘要： A video display processor (VDP) for use with a central processing unit, a video RAM (VRAM) and a video display unit is capable of writing video image data supplied from an external video device such as a television set into the VRAM. The VDP comprises a first input terminal for receiving the external video image data and a second input terminal for receiving horizontal and vertical synchronization signals from the external video device. The VDP generates address data in accordance with the horizontal and vertical synchronization signals and supplies the address data to the VRAM when processing of the external video image data is designated. The VDP also supplies the received external video image data to the VRAM thereby to write the external video image data into addresses of the VRAM designated by the address data. The external video image data may be either color codes representative of colors of display elements of a video image displayed at the external video device or data representative of amplitude levels of an analog video signal outputted from the external video device.
摘要翻译： 与中央处理单元，视频RAM（VRAM）和视频显示单元一起使用的视频显示处理器（VDP）能够将从诸如电视机的外部视频设备提供的视频图像数据写入到VRAM中。 VDP包括用于接收外部视频图像数据的第一输入端子和用于从外部视频装置接收水平和垂直同步信号的第二输入端子。 VDP根据水平和垂直同步信号产生地址数据，并且在指定外部视频图像数据的处理时将地址数据提供给VRAM。 VDP还将接收到的外部视频图像数据提供给VRAM，从而将外部视频图像数据写入由地址数据指定的VRAM的地址。 外部视频图像数据可以是表示在外部视频设备上显示的视频图像的显示元素的颜色的颜色代码或表示从外部视频设备输出的模拟视频信号的幅度电平的数据。
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公开(公告)号：US4619174A
公开(公告)日：1986-10-28
申请号：US785103
申请日：1985-10-07
申请人： Takatoshi Okumura
发明人： Takatoshi Okumura
CPC分类号： G10H1/183 , G21Y2002/103 , G21Y2004/20 , G21Y2004/30 , Y10S84/11
摘要： An electronic musical instrument are provided a plurality of tone production channels to produce musical tones polyphonically. Each of the tone production channel includes a first counter which divides clock pulses by either one of N and N+1 to deliver an output pulse. A second counter and a control circuit are further provided in the instrument, which are commonly used for respective tone production channels. The second counter counts, on the time division basis, the output pulses from the first counters, and the control circuit designates the dividing number of the first counter is relation with the counted value of the second counter. Each of the tone production channels produces a tone signal having a frequency predetermined by the combination of N and N+1. By time divisionally using the second counter and the control circuit, the construction of the instrument is simplified.
摘要翻译： 为电子乐器提供多个音调制作通道，以多音调产生乐音。 每个音调产生通道包括第一计数器，其将时钟脉冲除以N和N + 1中的任一个以传送输出脉冲。 在仪器中还设置有第二计数器和控制电路，其通常用于各个音调产生通道。 第二计数器在时分的基础上对来自第一计数器的输出脉冲进行计数，并且控制电路指定第一计数器的分割数与第二计数器的计数值的关系。 每个音调产生通道产生具有通过N和N + 1的组合预定的频率的音调信号。 通过分时使用第二计数器和控制电路，简化了仪器的结构。
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公开(公告)号：US4426902A
公开(公告)日：1984-01-24
申请号：US347185
申请日：1982-02-09
摘要： A key-speed-responsive volume control apparatus for a keyboard-type electronic musical instrument includes a key switch associated with a key of the instrument, wherein a movable contact of the key switch moves out of engagement with a break contact and into engagement with a make contact upon depression of the key. A capacitor is charged following the movement of the movable contact out of engagement with the break contact and before engagement with the make contact. The capacitor is made to discharge at a first prescribed rate immediately after charging until the movable contact comes into engagement with the make contact, and then at a second prescribed rate until the movable contact disengages the make contact upon release of the key. The terminal voltage of the capacitor when the movable contact comes into engagement with the make contact is utilized for controlling the amplitude of a tone source signal corresponding to the depressed key, thereby providing a tone signal having an initial amplitude determined in accordance with the speed of key depression. Necessitating the use of only one capacitor for each key, the apparatus is suitable for fabrication in the form of an integrated circuit.
摘要翻译： 一种用于键盘型电子乐器的按键速度响应音量控制装置包括与该乐器的键相关联的键开关，其中键开关的可动触点与断开触点脱离接合并与 在按住钥匙时接触。 随着可动触点的移动与断开触点的接合以及在与触点接合之前，电容器被充电。 电容器在充电之后立即以第一规定速率放电直到可动触点与制动触点接合，然后以第二规定速率直到可释放触点在释放键时脱离接触。 当可动触头与制动触点接合时，电容器的端子电压被用于控制与按下的键对应的音源信号的振幅，从而提供具有根据按键的速度确定的初始振幅的音调信号 关键抑郁症 每个键只需要使用一个电容器，该装置适合以集成电路的形式制造。
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公开(公告)号：US4333374A
公开(公告)日：1982-06-08
申请号：US133601
申请日：1980-03-24
申请人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
发明人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
摘要： A digital oscillator generates a basic pulse having a period which is a predetermined large number of times of a clock pulse period. During the basic pulse period are allotted a predetermined small number of time slots defining submultiple frequency channels. There is provided a shift register having the channel number of stages, each stage being assigned to each channel. The contents of the respective stages are changed at respectively different periods which are multiples of the basic pulse period. The contents are taken out timewise-serially, one at a time, stage by stage, and superimposed on the basic pulse to constitute a time-division-multiplexed wave data signal. The delivered signal is demultiplexed to form individual waves having respectively different frequencies which are submultiple-related to the frequency of the basic pulse. This generator is very suitable for electronic musical instruments, as a single line transmits plural wave data.
摘要翻译： 数字振荡器产生具有时钟脉冲周期的预定次数的周期的基本脉冲。 在基本脉冲周期期间，分配有预定的少量定义多个频率信道的时隙。 提供了具有通道数级的移位寄存器，每个级被分配给每个通道。 分别在基本脉冲周期的倍数的不同时段改变各个级的内容。 按时间顺序排列内容，逐个逐个取出，叠加在基本脉冲上，构成时分复用波数据信号。 所递送的信号被解复用以形成具有与基本脉冲的频率相关的分别不同频率的各个波。 该发电机非常适合电子乐器，单线传输多波数据。
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公开(公告)号：US4302999A
公开(公告)日：1981-12-01
申请号：US161222
申请日：1980-06-20
申请人： Takatoshi Okumura
发明人： Takatoshi Okumura
摘要： An electronic musical instrument includes twelve multiplexed wave data generators each of which corresponds to one of twelve musical notes in an octave and produces a multiplexed wave data signal which has a basic pulse frequency decisive of a note and has data indicating states of octavely related plural waves for the same note in a time-division-multiplexed manner. A note selection circuit selects a multiplexed wave data signal for the note designated by the depressed key. The selected wave data signal is converted by a shift register to parallel wave data signals, which are latched by a latch circuit. Selection of the octave is made by the latching time of the latch circuit determining the positions of the bits in the shift register to be latched. Rewriting of latched data in the latch circuit is effected each time the value of the data signal having the highest frequency among the wave data signals varies. The outputs of the latch circuit are used as address signals for reading musical tone waveforms from a waveform memory.
摘要翻译： 一种电子乐器包括十二个复用波形数据发生器，每一个对应于八度音阶中的十二个音符中的一个，产生具有音符基本脉冲频率的复用波数据信号，并具有表示八度相关多波的状态的数据 对于相同的音符，以时分复用的方式。 音符选择电路为由按下的键指定的音符选择复用波数据信号。 所选择的波数据信号由移位寄存器转换成由锁存电路锁存的并行波数据信号。 通过锁存电路的锁存时间来确定要锁存的移位寄存器中的位的位置来进行倍频程的选择。 每次在波数据信号中具有最高频率的数据信号的值变化时，锁存电路中的锁存数据的重写是有效的。 锁存电路的输出用作从波形存储器读取乐音波形的地址信号。
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公开(公告)号：USRE30736E
公开(公告)日：1981-09-08
申请号：US154994
申请日：1980-05-30
摘要： In an electronic musical instrument, the keys of a keyboard are divided into a plurality of groups by octaves, and a wave generator is provided with a memory for storing constants corresponding to musical tone frequencies to be generated according to the notes includes in a desired group out of the plurality of group, an accumulator for repeatedly adding the constants read out of the memory, and a bit position shifting circuit for shifting the bit position of the data produced by the accumulator according to the octave range of a note to be produced, thereby to obtain the data varying repeatedly according to the frequency of a note to be produced, and to reduce the storing capacity of the memory when compared to the number of keys.
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公开(公告)号：US4228712A
公开(公告)日：1980-10-21
申请号：US940381
申请日：1978-09-07
申请人： Yasuji Uchiyama , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
发明人： Yasuji Uchiyama , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
CPC分类号： G10H1/383
摘要： Key switches are connected in a matrix fashion between row lines making block lines for octaves and column lines making note lines for notes. The note lines are connected to a note detection circuit which converts the note line outputs of the actuated switches into key codes in a time shared fashion and to a chord detection circuit which includes a chord type detecting logic and a shift register connected thereto and storing the note line outputs in its respective stages. During a chord detecting period, the note detection circuit is loaded with signals "1" as if all the key switches were actuated and delivers key codes of all notes one after another, whereas the shift register is circulatingly shifted synchronously with the note code change. When the logic detects an establishment of a chord, the note code of that moment is extracted to be a code identifying the root note of the chord. The root note code is then processed for automatic bass and chord performance.
摘要翻译： 键开关以矩阵方式连接在行线之间，为八度音阶和列线制作块线，为笔记制作笔记线。 音符线连接到音符检测电路，该音符检测电路以时分方式将致动开关的音符线输出转换成键码，并将其连接到和弦检测电路，该弦检测电路包括和弦型检测逻辑和与之连接的移位寄存器， 笔记线输出在各自的阶段。 在和弦检测期间，音符检测电路装载有信号“1”，好像所有键开关都被致动，并且一个接一个地传送所有音符的键码，而移位寄存器与音符码变化同步地循环移位。 当逻辑检测到和弦的建立时，该时刻的音符代码被提取为标识和弦的根音的代码。 然后处理根音符代码以进行自动低音和和弦演奏。
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公开(公告)号：US4228403A
公开(公告)日：1980-10-14
申请号：US915239
申请日：1978-06-13
申请人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
发明人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
摘要： A digital oscillator generates a basic pulse having a period which is a predetermined large number of times of a clock pulse period. During the basic pulse period are allotted a predetermined small number of time slots defining submultiple frequency channels. There is provided a shift register having the channel number of stages, each stage being assigned to each channel. The contents of the respective stages are changed at respectively different periods which are multiples of the basic pulse period. The contents are taken out timewise-serially, one at a time, stage by stage, and superimposed on the basic pulse to constitute a time-division-multiplexed wave data signal. The delivered signal is demultiplexed to form individual waves having respectively different frequencies which are submultiple-related to the frequency of the basic pulse. This generator is very suitable for electronic musical instruments, as a single line transmits plural wave data.
摘要翻译： 数字振荡器产生具有时钟脉冲周期的预定次数的周期的基本脉冲。 在基本脉冲周期期间，分配有预定的少量定义多个频率信道的时隙。 提供了具有通道级数的移位寄存器，每个级被分配给每个通道。 分别在基本脉冲周期的倍数的不同时段改变各个级的内容。 按时间顺序串行地取出内容，逐个逐个取出，叠加在基本脉冲上，构成时分复用波数据信号。 所递送的信号被解复用以形成具有与基本脉冲的频率相关的分别不同频率的各个波。 该发电机非常适合电子乐器，单线传输多波数据。
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