公开(公告)号：US20040037426A1

公开(公告)日：2004-02-26

申请号：US10638422

申请日：2003-08-12

Applicant: VIA Technologies, Inc.

Inventor： Ching-Jung Chu ,  Ta-Jung Yeh ,  Feng-Sheng Chang ,  I-Cheng Tsou ,  Chi-Yi Lee ,  Weishang Chu

IPC: H04R005/00

CPC classification number: H04H20/89 ,  G06F3/162 ,  H04H20/95 ,  H04H60/04

Abstract: A apparatus formed on a motherboard of computer complied with PC99 standard for converting to six-channel output from two-channel is disclosed. The apparatus comprises a CODEC, a MIC_IN connector switch, first, second, and third filters, and a resistor circuit. In a six-channel output mode, the rear left and rear right surround signals and LINE_IN_L and LINE_IN_R signals are fed into the third filter.

Abstract translation: 公开了一种在计算机主板上形成的装置，符合PC99标准，用于从双通道转换为六通道输出。 该装置包括CODEC，MIC_IN连接器开关，第一，第二和第三滤波器以及电阻器电路。 在六通道输出模式下，后左右环绕信号和LINE_IN_L和LINE_IN_R信号被馈送到第三个滤波器。