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1. 发明授权

US08054982B2 Sound signal generator testing apparatus 失效
标题翻译：声音信号发生器测试仪
公开(公告)号：US08054982B2
公开(公告)日：2011-11-08
申请号：US11620054
申请日：2007-01-05
申请人： Tsung-Lung Yang , Chin Poh Koh , Shin-Hong Chung , Shu-Ho Wu , Kuan-Hong Hsieh
发明人： Tsung-Lung Yang , Chin Poh Koh , Shin-Hong Chung , Shu-Ho Wu , Kuan-Hong Hsieh
IPC分类号： H04R29/00
CPC分类号： H04R29/00
摘要： A sound signal generator testing apparatus is provided. The apparatus includes a hermetic seal (2), a sound signal input unit (4), and at least a noise suppression unit (5). The sound signal input unit is for receiving sound signals transmitted from a sound signal generator (1) under testing. Each noise suppression unit includes a sound signal input unit, a low pass filter, an inverter, and an output. The sound signal input unit is for receiving sound signals. The low pass filter is for filtering the sound signals by passing the low frequencies of the sound signals that are below a predetermined value. The inverter is for inverting phases of the sound signals transmitted from the low pass filter and producing inverted sound signals. The output unit is placed behind the sound signal input unit for outputting the inverted sound signals.
摘要翻译：提供了一种声音信号发生器测试装置。该装置包括气密密封件（2），声音信号输入单元（4）和至少噪声抑制单元（5）。声音信号输入单元用于接收从被测试的声音信号发生器（1）发送的声音信号。每个噪声抑制单元包括声音信号输入单元，低通滤波器，反相器和输出。声音信号输入单元用于接收声音信号。低通滤波器用于通过使低于预定值的声音信号的低频来过滤声音信号。逆变器用于反转从低通滤波器发送的声音信号的相位，并产生反相的声音信号。输出单元放置在声音信号输入单元的后面，用于输出反转的声音信号。

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