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    • 1. 发明授权
    • Electric instrument amplifier
    • 电动乐器放大器
    • US06350943B1
    • 2002-02-26
    • US09750861
    • 2000-12-28
    • Michio SurugaYoshihiro SuzukiKentaro Matsumoto
    • Michio SurugaYoshihiro SuzukiKentaro Matsumoto
    • G10H112
    • H03F1/327G10H1/12G10H3/187Y10S84/09Y10S84/10
    • An electric instrument amplifier emulates an audio characteristics of a traditional vacuum-tube type amplifier. The electric instrument amplifier is formed in a single housing for amplifying an audio signal from an electric instrument. The electric instrument amplifier includes an A/D (analog-to-digital) converter for converting a first analog signal from the electric instrument to a digital signal, a digital signal processing circuit for processing the digital signal to add an intended effect to the digital signal, a D/A (digital-to-analog) converter for converting the digital signal processed by the digital signal processing circuit to a second analog signal, a tube amplifier having at least one vacuum-tube for amplifying the second analog signal, and a virtual power circuit formed with semiconductor devices for amplifying or attenuating an audio signal produced by the tube amplifier.
    • 电动放大器模拟传统真空管式放大器的音频特性。 电子仪器放大器形成在用于放大来自电子仪器的音频信号的单个外壳中。 电子仪器放大器包括用于将来自电子仪器的第一模拟信号转换为数字信号的A / D(模拟 - 数字)转换器,用于处理数字信号以将数字信号增加到数字信号的预期效果的数字信号处理电路 信号,用于将由数字信号处理电路处理的数字信号转换为第二模拟信号的D / A(数/模)转换器,具有至少一个用于放大第二模拟信号的真空管的管放大器,以及 形成有用于放大或衰减由管放大器产生的音频信号的半导体器件的虚拟电源电路。