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    • 3. 发明授权
    • Power regulation system for controlling voltage excursions
    • 用于控制电压偏移的功率调节系统
    • US5629608A
    • 1997-05-13
    • US365367
    • 1994-12-28
    • Gerald A. Budelman
    • Gerald A. Budelman
    • G05F1/618G05F1/613
    • G05F1/618
    • An apparatus and method for providing dynamic voltage regulation for a system with a fluctuating current demand are disclosed. A first voltage regulator is used for producing regulated output to the system. A control circuit activates a second voltage regulator with faster transient response than the first voltage regulator to help source current when the first voltage regulator is unable to adequately respond to an increase in current demand from the system. The control circuit activates a load element to help sink current at the output of the first voltage regulator when the first voltage regulator is unable to adequately respond to a decrease in current demand from the system.
    • 公开了一种用于为具有波动电流需求的系统提供动态电压调节的装置和方法。 第一个电压调节器用于产生系统的调节输出。 当第一电压调节器不能充分响应来自系统的电流需求的增加时,控制电路激活具有比第一电压调节器更快的瞬态响应的第二电压调节器,以帮助源电流。 当第一电压调节器不能充分响应来自系统的电流需求的减小时,控制电路激活负载元件以帮助吸收第一电压调节器的输出端的电流。
    • 4. 发明授权
    • Apparatus and method for decoding four channel sound
    • 用于解码四声道声音的装置和方法
    • US3943287A
    • 1976-03-09
    • US475434
    • 1974-06-03
    • Daniel W. GravereauxGerald A. Budelman
    • Daniel W. GravereauxGerald A. Budelman
    • H04S3/02H04H5/00
    • H04S3/02
    • An apparatus and method for decoding four individual audio signals to the extent they are contained in first and second composite signals. The first composite signal contains the first individual audio signal in dominant proportion and two other individual audio signals in subdominant proportions. The second composite signal contains the second individual audio signals in dominant proportion and two other individual audio signals in subdominant proportions. In accordance with the invention there is provided a means for measuring the degree of directional predominance of each of the four individual audio signals. Means responsive to the composite signals are employed to form four partially decoded signals, each of the partially decoded signals including a different one of the individual audio signals in dominant proportion and two other individual audio signals in subdominant proportion. The four partially decoded signals are respectively applied to four output terminals. Further provided is a means responsive to the composite signals for forming four enhancement signals, each of the enhancement signals having a different one of the individual signals as its principal component. Each of the enhancement signals is applied to the particular ones of the output terminals at which its principal component is present in subdominant proportion. Each enhancement signal is applied at a relative phase which is the opposite of said signal present in subdominant proportion and at a level which depends on the measured degree of directional predominance of its principal component. In this manner, a selective cancellation of certain subdominant components is achieved.
    • 一种用于将四个单独的音频信号解码成第一和第二复合信号中包含的程度的装置和方法。 第一个复合信号包含主要比例的第一个独立音频信号和次优势比例的另外两个独立音频信号。 第二复合信号包含占主导比例的第二个独立音频信号和次优势比例的另外两个独立音频信号。 根据本发明,提供了一种用于测量四个单独音频信号中的每一个的方向优势程度的装置。 采用响应于复合信号的装置来形成四个部分解码的信号,每个部分解码的信号包括主要比例的各个音频信号中的不同的一个和次优势比例的另外两个独立的音频信号。 四个部分解码的信号分别施加到四个输出端子。 还提供了响应于用于形成四个增强信号的复合信号的装置,每个增强信号具有不同的一个单独信号作为其主要分量。 每个增强信号被应用于其主要成分以次优势比例存在的特定输出端子。 每个增强信号以相对相位施加,该相位相对于存在于次优势比例中的信号,并且取决于其主要成分的测量方向优势度的水平。 以这种方式,实现了某些次优势分量的选择性消除。
    • 6. 发明授权
    • System for recording and automatic playback of a musical performance
    • 用于录制和自动播放音乐表演的系统
    • US4215619A
    • 1980-08-05
    • US972625
    • 1978-12-22
    • Gerald A. BudelmanJames A. Turner
    • Gerald A. BudelmanJames A. Turner
    • G10H1/00G10H7/00G10H1/02G10H5/00
    • G10H7/002G10H1/005Y10S84/30
    • A musical keyboard instrument is disclosed for recording and storing a musical performance and then automatically playing back the performance. As is conventional, a keyboard having a plurality of keys is provided, along with musical tone generators that are associated with the keys. In accordance with the disclosed invention, means are provided for sensing, at a sensing time, those of the keys which are activated. A sequence of frames are generated, each frame including digital information representative of the keys that are activated at a given sensing time. The duration of each frame is a function of the relative locations of the keys activated at a given sensing time, and is therefore a duration which can vary from frame to frame. Each sensing time is determined by the previously completed frame, i.e., when a frame is complete, the statuses of the keys are again sensed so that the next frame can be generated. The sequences of frames are stored on magnetic tape. In a preferred form of the invention, the keys are divided into groups or "ports", and the digital information for each frame includes identification of the ports that have one or more activated keys and identification of the individual keys that are activated within that port. The rationale of this coding scheme is particularly compatible with the physical characteristics and manual dexterity of a human playing a keyboard instrument. The digital information of each frame is encoded in frequency shift keyed form and frequency shift keyed signals are recorded by generating digitally synthesized sinusoidal signals for application to magnetic tape.
    • 公开了一种音乐键盘乐器,用于记录和存储音乐表演,然后自动地回放演奏。 如常规的那样,提供具有多个键的键盘以及与键相关联的乐音发生器。 根据所公开的发明,提供了用于在感测时间感测被激活的键的装置的装置。 生成一系列帧,每个帧包括表示在给定感测时间被激活的密钥的数字信息。 每帧的持续时间是在给定感测时间激活的键的相对位置的函数,因此是可以随帧而变化的持续时间。 每个感测时间由先前完成的帧确定,即当帧完成时,再次感测到键的状态,使得可以生成下一帧。 帧序列存储在磁带上。 在本发明的优选形式中,密钥被分成组或“端口”,并且每个帧的数字信息包括具有一个或多个激活的密钥的端口的标识和在该端口内被激活的各个密钥的标识 。 该编码方案的基本原理特别与人们玩键盘乐器的物理特性和手动灵巧性相兼容。 每帧的数字信息以频移键控形式进行编码,并通过生成用于应用于磁带的数字合成正弦信号来记录频移键控信号。
    • 10. 发明授权
    • Electronic tone generating system
    • 电子音调发生系统
    • US4409877A
    • 1983-10-18
    • US283355
    • 1981-07-14
    • Gerald A. Budelman
    • Gerald A. Budelman
    • G10H1/08G10H1/24G10B3/10G10H7/00
    • G10H1/08G10H1/24
    • A tone generating system for an organ comprises a first group of tone generators for producing notes of a first chromatic scale and second group of tone generators for producing notes of a second chromatic scale, slightly offset from the first. The tone generators are addressed via a microprocessor in response to keyboard input, wherein the fundamental and a first plurality of selected harmonic components of a given note are generated by respective tone generators of said first group, and the remaining harmonics are provided by generators of the second group. Harmonic amplitude coefficients for particular organ waveforms are stored in random access memory and are subject to change according to stop inputs coupled to the microprocessor.
    • 用于器官的乐音产生系统包括用于产生第一色标的音符的第一组乐音发生器和用于产生与第一音阶略微偏移的第二色标的音符的第二组乐音发生器。 响应于键盘输入,音调发生器通过微处理器寻址,其中给定音符的基本和第一多个选定的谐波分量由所述第一组的各个音调发生器产生,并且剩余谐波由 第二组。 特定器官波形的谐波幅度系数存储在随机存取存储器中,并根据耦合到微处理器的停止输入而改变。