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    • 82. 发明授权
    • Automatic performance apparatus having automatic synchronizing function
    • 具有自动同步功能的自动演奏装置
    • US5009145A
    • 1991-04-23
    • US321228
    • 1989-03-08
    • Takashi IshidaMasao Kondo
    • Takashi IshidaMasao Kondo
    • G09B15/00G10H1/00G10H1/36
    • G10H1/36G10H1/0041G10H2210/125Y10S84/12Y10S84/22
    • An automatic performance apparatus provides a memory capable of storing plural parts of a desirable tune, wherein each part can be independently recorded or reproduced, regardless of recording or reproduction of another part. While performance information of one part is recorded or reproduced after a first detector detects the designation of recording or reproducing of one part so that an automatic performance of one part is played, the automatic performance apparatus can reproduce another performance information of another part after a second detector detects a section end of one part so that another automatic performance of another part is played. This another part is started to be automatically performed at the timing synchronizing with a progress of recording or reproducing the performance information of one part. Thus, the synchronization between one part and another part can be automatically obtained without effort.
    • 自动演奏装置提供能够存储所需乐曲的多个部分的存储器,其中每个部分可以独立地记录或再现,而不管其他部分的记录或再现。 虽然在第一检测器检测到一个部分的记录或再现的指定之后记录或再现一部分的性能信息,使得播放一部分的自动演奏,但是自动演奏装置可以再次再现另一部分的另一演奏信息 检测器检测一部分的截面端,以便播放另一部分的另一自动演奏。 在与记录或再现一部分的演奏信息的进度同步的定时开始自动执行另一部分。 因此,可以毫不费力地自动获得一部分与另一部分之间的同步。
    • 86. 发明授权
    • High-frequency power amplifying device
    • 高频功率放大装置
    • US08674764B2
    • 2014-03-18
    • US13557643
    • 2012-07-25
    • Masao Kondo
    • Masao Kondo
    • H03F3/45
    • H03F1/0277H03F3/211H03F3/245H03F3/72H03F2200/537H03F2200/541
    • The present invention provides a high-frequency power amplifying device capable of transmitting output power at high efficiency. For example, a high-frequency power amplifying device has first and second differential amplifiers and a transformer for matching output impedances of the differential amplifiers. Between differential output nodes of the first differential amplifier, an inductor, a switch, and an inductor are coupled in series. When the second differential amplifier is in an operating state and the first differential amplifier is in a non-operating state, the switch is controlled to be on. In this case, due to “off capacitance” in transistors of a differential pair included in the first differential amplifier, impedance on the first differential amplifier side seen from both ends of primary coils becomes a high impedance state (parallel resonance state) and, equivalently, the primary coils do not exert influence on the operation of the second differential amplifier.
    • 本发明提供能够高效率地发送输出功率的高频功率放大装置。 例如,高频功率放大装置具有第一和第二差分放大器和用于匹配差分放大器的输出阻抗的变压器。 在第一差分放大器的差分输出节点之间,电感器,开关和电感器串联耦合。 当第二差分放大器处于工作状态并且第一差分放大器处于非工作状态时,开关被控制为接通。 在这种情况下,由于包含在第一差分放大器中的差分对的晶体管中的“断开电容”,从初级线圈两端看到的第一差分放大器侧的阻抗成为高阻抗状态(并联谐振状态) 初级线圈不会对第二差分放大器的工作产生影响。