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    • 1. 发明申请
    • Audio reproduction apparatus
    • 音频再现装置
    • US20040264717A1
    • 2004-12-30
    • US10897280
    • 2004-07-22
    • Yamaha Corporation
    • Shinichi FujitaHironari Kawai
    • H04R005/00H04R005/02
    • H04R5/04H04R27/00H04R2227/005H04R2420/03H04S3/00
    • A first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel and a second selector switch couples output of the power amplifier of the m channel to a speaker terminal for the selected second zone whereby an audio signal can be supplied to either one of a plurality of second zones. In one aspect of the invention, a first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel determined by a control section and a second selector switch couples output of the m channel determined by the control section to a speaker terminal for the selected second zone whereby an audio signal can be supplied to one or more zones among plural second zones.
    • 第一选择器开关将对应于所选择的第二区域的m通道的第二音频信号输出到m通道的功率放大器,而第二选择器开关将m通道的功率放大器的输出耦合到所选择的第二区域的扬声器端子 由此可以将音频信号提供给多个第二区域中的任一个。 在本发明的一个方面,第一选择器开关将对应于所选择的第二区域的m个信道的第二音频信号输出到由控制部分确定的m个信道的功率放大器,并且第二选择器开关将所确定的m个信道的输出 通过控制部分到用于所选择的第二区域的扬声器端子,由此可以将音频信号提供给多个第二区域中的一个或多个区域。
    • 2. 发明申请
    • Audio reproduction apparatus
    • 音频再现装置
    • US20040062402A1
    • 2004-04-01
    • US10621910
    • 2003-07-17
    • Yamaha Corporation
    • Shinichi FujitaHironari Kawai
    • H04R005/00H03G003/00H02B001/00
    • H04R5/04H04R27/00H04R2227/005H04R2420/03H04S3/00
    • In a first mode where no audio reproduction is to be executed in a second zone, each selector switch shifts to a Z1 contact. In a second mode where audio reproduction is to be executed in the second zone, each selector switch shifts to a Z2 contact. In the second mode, a DSP executes sound field correction on main and rear signals such that sound fields in the first zone have desired characteristics. Setting section can select either a first speaker mode where speakers connected to first output terminals and speakers connected to second output terminals are both positioned in the first zone, or a second speaker mode where the speakers connected to the first output terminals are positioned in the first zone and the speakers connected to the second output terminals are positioned in the second zone. When the output to the first output terminals is off while the output to the second output terminals is on in the second speaker mode, the DSP stops outputting the surround signals.
    • 在不在第二区域中执行音频再现的第一模式中,每个选择开关切换到Z1触点。 在第二模式中,在第二区域中执行音频再现,每个选择开关转换到Z2触点。 在第二模式中,DSP对主信号和后信号执行声场校正,使得第一区中的声场具有期望的特性。 设置部分可以选择第一扬声器模式,其中连接到第一输出端子的扬声器和连接到第二输出端子的扬声器都位于​​第一区域中,或者第二扬声器模式,其中连接到第一输出端子的扬声器位于第一 连接到第二输出端子的扬声器位于第二区域中。 当在第二扬声器模式下,当输出到第二输出端子的输出到第一输出端子的输出关闭时,DSP停止输出环绕信号。