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    • 7. 发明授权
    • Electronic musical instrument changing timbre by external designation of
multiple choices
    • 电子乐器通过外部指定多种选择来改变音色
    • US5998722A
    • 1999-12-07
    • US877962
    • 1997-06-18
    • Masao Kondo
    • Masao Kondo
    • G10H1/24G10H1/00G10H1/06
    • G10H1/0075G10H2210/205G10H2210/235G10H2210/251G10H2210/291
    • An electronic musical instrument utilizes a tone generator installed with a plurality of timbres for generating a musical tone having a timbre selected from the installed timbres. A MIDI interface is provided for receiving timbre designation information which designates a primary choice and a secondary choice of desired timbres. A bank selector operates when the primary choice is present in the installed timbres for selecting the same so that the musical tone is generated in a desired timbre of the primary choice, and otherwise operates when the primary choice is absent in the installed timbres for selecting the secondary choice in place of the primary choice from the installed timbres so that the musical tone is generated in another desired timbre of the secondary choice.
    • 电子乐器利用安装有多个音色的乐音发生器,用于产生具有从安装音色中选择的音色的乐音。 提供MIDI接口用于接收指定所需音色的主要选择和次要选择的音色指定信息。 当主要选择存在于安装的音色中用于选择相同的音调以便以主要选择的期望音色产生乐音时,银行选择器操作,否则当所安装的音色中缺少选择的主要选择时操作 代替从安装的音色中的主要选择的次要选择,使得在第二选择的另一所需音色中产生乐音。
    • 10. 发明授权
    • Polyphonic digital synthesizer of periodic signals
    • 复数数字合成器的周期信号
    • US4344343A
    • 1982-08-17
    • US158251
    • 1980-06-10
    • Christian T. Deforeit
    • Christian T. Deforeit
    • G10H7/02G10H7/08G10H1/00
    • G10H7/08G10H2210/205G10H2250/161
    • An entirely digital polyphonic musical synthesizer in which the amplitude of each spectral component may develop either linearly or logarithmically as a function of time, including amplitude computation means which produce, for each period of an amplitude clock signal, a new current amplitude value by linear or logarithmic interpolation between the initial current amplitude and a predetermined final amplitude value. The new current amplitude value is memorized in place of the initial value. When the current amplitude is equal to the final amplitude, a signal is transmitted to the synthesizer control means. The synthesizer enables gentle modulations in amplitude to be obtained and reduces the complexity of the instrument's control means.
    • 一种全数字复音音乐合成器,其中每个频谱分量的振幅可以以时间的形式线性或对数地形成,包括幅度计算装置,其对幅度时钟信号的每个周期产生新的电流幅度值,线性或 初始电流幅度与预定最终振幅值之间的对数插值。 新的当前幅度值被存储代替初始值。 当电流幅度等于最终幅度时,信号被发送到合成器控制装置。 合成器可以获得幅度的柔和调制,并降低仪器控制手段的复杂性。