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    Electronic musical instrument
    4.
    发明授权
    Electronic musical instrument 失效
    电子乐器

    公开(公告)号：US6005181A

    公开(公告)日：1999-12-21

    申请号：US56388

    申请日：1998-04-07

    申请人： Robert L. Adams ,  Michael Brook ,  John Eichenseer ,  Mark Goldstein ,  Geoff Smith

    发明人： Robert L. Adams ,  Michael Brook ,  John Eichenseer ,  Mark Goldstein ,  Geoff Smith

    IPC分类号： G10H1/055 ,  G10H1/34 ,  G10H3/14

    CPC分类号： G10H1/34 ,  G10H1/0558 ,  G10H2220/561 ,  G10H2230/335 ,  G10H2240/056 ,  G10H2240/311 ,  G10H2250/461

    摘要： A control instrument for a system for generating acoustic output which includes a processor for receiving user input signals and control the acoustic output in response to the user input signals. The control instrument includes an instrument body, and at least one sensor element carried by the instrument body. The sensor element generates user input signals upon tactile actuation of the sensor element by a user. The user input signals indicate the location of contact and amount of force applied to the sensor element by the user. A music synthesis system and a sound processing system each including the control instrument are also provided.

    摘要翻译： 一种用于产生声输出的系统的控制仪器，其包括用于接收用户输入信号并响应于用户输入信号控制声输出的处理器。 控制仪器包括仪器主体和由仪器主体承载的至少一个传感器元件。 传感器元件在用户对传感器元件的触觉致动时产生用户输入信号。 用户输入信号指示用户的接触位置和施加到传感器元件的力量。 还提供了包括控制仪器的音乐合成系统和声音处理系统。

    Sound-based event control using timbral analysis
    5.
    发明授权
    Sound-based event control using timbral analysis 失效
    基于声音的事件控制使用时间分析

    公开(公告)号：US6054646A

    公开(公告)日：2000-04-25

    申请号：US49041

    申请日：1998-03-27

    申请人： Christopher Pal ,  Malcolm Slaney ,  Robert L. Adams

    发明人： Christopher Pal ,  Malcolm Slaney ,  Robert L. Adams

    IPC分类号： G10H1/12 ,  G10H3/12 ,  G10H7/00

    CPC分类号： G10H1/125 ,  G10H3/125 ,  G10H2210/041 ,  G10H2210/066 ,  G10H2240/056 ,  G10H2250/221 ,  G10H2250/235

    摘要： Arbitrary input sounds are analyzed and the coefficients of a low-dimensional representation, such as LPC or MFCC, are determined as a measure of the timbre of the sounds. The coefficients can be employed in different ways to control output events, such as the generation of synthesized sounds. In one approach, the individual coefficients are mapped to the control parameters of a sound synthesizer, to enable highly complex output sounds to be generated in response to simple input sounds. In another approach, pattern recognition techniques are employed with respect to the coefficients, to classify the input sounds. Each classification is mapped to a control parameter, to cause different events to occur in response to the respective input sounds. In one example, the sounds of different musical instruments are generated in dependence upon the classification of the input sounds. These analysis techniques have low latency, and thereby allow events to be controlled without perceptible delay.

    摘要翻译： 分析任意输入声音，并且将诸如LPC或MFCC的低维表示的系数确定为声音音色的度量。 系数可以以不同的方式用于控制输出事件，例如合成声音的产生。 在一种方法中，各个系数被映射到声音合成器的控制参数，以便响应于简单的输入声音而产生高度复杂的输出声音。 在另一种方法中，相对于系数使用模式识别技术来分类输入声音。 每个分类被映射到控制参数，以响应于相应的输入声音而引起不同的事件。 在一个示例中，根据输入声音的分类产生不同乐器的声音。 这些分析技术具有低延迟，从而允许事件被控制而没有可察觉的延迟。

    System and method for controlling a music synthesizer
    6.
    发明授权
    System and method for controlling a music synthesizer 失效
    用于控制音乐合成器的系统和方法

    公开(公告)号：US6018118A

    公开(公告)日：2000-01-25

    申请号：US56354

    申请日：1998-04-07

    申请人： Geoffrey M. Smith ,  Mark H. Goldstein ,  John W. Eichenseer ,  Michael B. Brook ,  Robert L. Adams

    发明人： Geoffrey M. Smith ,  Mark H. Goldstein ,  John W. Eichenseer ,  Michael B. Brook ,  Robert L. Adams

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

    CPC分类号： G10H1/0066 ,  G10H1/18 ,  G10H7/002 ,  G10H2220/561

    摘要： A signal mapping system maps sensor signals into control signals that control the operation of a music synthesizer. A "one to many" mapping technique is used, allowing at least some of the sensor signals to each be mapped into numerous music synthesizer control signals. Physical gestures by a user are mapped into a large set of music synthesizer control signals, some of which continuously vary in value as the user moves through the gestures. Signal mapping functions are used to map the sensor signals into note number and velocity values for at least one voice to be generated by the music synthesizer. The note number and velocity values are sent to the music synthesizer as note-on events when predefined note-on and note-off trigger conditions, defined with respect to specified ones of the sensor signals, are satisfied. Other ones of the signal mapping functions are used to generate asynchronous control signals that are sent to the music synthesizer independent of the note-on and note-off events. A third set of signal mapping functions are used to generate the trigger signals for determining when note-on and note-off events are to be sent to the music synthesizer.

    摘要翻译： 信号映射系统将传感器信号映射成控制音乐合成器的操作的控制信号。 使用“一对多”映射技术，允许至少一些传感器信号被映射成许多音乐合成器控制信号。 用户的物理手势被映射成一大组音乐合成器控制信号，其中一些音乐合成器控制信号随着用户移动手势而不断变化。 信号映射功能用于将传感器信号映射到由音乐合成器生成的至少一个语音的音符数量和速度值。 音符编号和速度值作为音符事件发送到音乐合成器，当预定义的关于指定的传感器信号的音符开启和音符关闭触发条件得到满足时，音符编号和速度值被发送到音乐合成器。 信号映射功能中的其他功能用于产生独立于音符开关和音符关闭事件而发送到音乐合成器的异步控制信号。 第三组信号映射功能用于产生触发信号，用于确定何时将音符和音符关闭事件发送到音乐合成器。

    Method of providing thinned layer of epitaxial semiconductor material having substantially uniform reverse breakdown voltage characteristic
    7.
    发明授权
    Method of providing thinned layer of epitaxial semiconductor material having substantially uniform reverse breakdown voltage characteristic 失效
    提供具有基本均匀的反向击穿电压特性的外延半导体材料的薄化层的方法

    公开(公告)号：US4154663A

    公开(公告)日：1979-05-15

    申请号：US879020

    申请日：1978-02-17

    申请人： Robert L. Adams

    发明人： Robert L. Adams

    IPC分类号： C25F3/12 ,  H01L21/3063 ,  H01L21/316 ,  B23P1/00

    CPC分类号： H01L21/02241 ,  C25F3/12 ,  H01L21/02258 ,  H01L21/30635 ,  H01L21/31679

    摘要： Method of providing a thinned layer of epitaxial semiconductor material having a substantially uniform reverse breakdown voltage characteristic (RVBV) on a substrate, wherein stringent control is necessary in the determination of the thickness of the epitaxial layer. This method has particular application to the fabrication of high performance Read-IMPATT diodes of gallium arsenide where it is desirable to achieve a device structure in which substantially equal reverse breakdown voltage values exist across the entire substrate. A particular GaAs Read-IMPATT diode has two epitaxial layers including a relatively lightly doped first epitaxial layer disposed on the substrate and a second top epitaxial layer whose thickness must be controlled as to uniformity and as to magnitude to enable proper microwave operation of the device. The method herein disclosed accomplishes a thickness reduction in the top epitaxial layer of a GaAs Read-IMPATT diode by anodically growing an oxide on the top epitaxial layer under voltage limited conditions and then removing the oxide by cathodic reduction to achieve leveling of the top epitaxial layer to a thinned substantially uniform thickness.

    摘要翻译： 提供在衬底上具有基本均匀的反向击穿电压特性（RVBV）的外延半导体材料的薄化层的方法，其中在确定外延层的厚度时需要严格的控制。 该方法特别适用于制造砷化镓的高性能读IMPATT二极管，其中希望实现在整个衬底上存在基本上相等的反向击穿电压值的器件结构。 特定的GaAs Read-IMPATT二极管具有两个外延层，其包括设置在衬底上的相对轻掺杂的第一外延层和第二顶部外延层，其厚度必须被控制为均匀性并且大小以使得器件能够进行适当的微波操作。 本文公开的方法通过在电压限制条件下在顶部外延层上阳极生长氧化物，然后通过阴极还原去除氧化物，实现GaAs读取 - 强制二极管的顶部外延层的厚度减小，以实现顶部外延层 变薄到基本均匀的厚度。