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发明公开
CN1641519A 电子装置的音频噪声与噪声消除结构 无效 - 撤回

电子装置的音频噪声与噪声消除结构
摘要：
一种电子装置的音频噪音与噪声消除结构，是用来防止电子装置主机板上模拟电路区的音源元件的输出信号，不致于经过数字电路区再回到音源元件处而造成音频信号的噪音。本发明是在该模拟电路区的音源元件的信号输入端邻近位置处设有至少一模拟回路接地点，该模拟回路接地点电连接于该电子装置的金属机壳，并与该音源元件的信号输入端、音源元件的信号输出端、模拟电路区的接地点间形成一噪音引导回路，以消除该模拟电路区的音频噪音与噪声。
摘要（英）：

This is a structure of eliminating the audio noise and yawp of a electronic device. It's used to avoid the output signals of the sound-source organ in the analog circuit section of the host board of the electronic device from coming back to sound-source organ through the digital circuit section to cause the noise of the audio signals. This invention equips at least one analog loop grounding point at the contiguous position of the signal input end of the sound-source in the analog circuit section. The grounding point of the analog circuit is connected to the metal machine shell of the electronic device, and forms a noise leading loop with the signal input end of the sound-source organ, the output end of the sound-source organ and the grounding point of the analog circuit, to get rid of the audio noise and yawp of the analog section.

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