公开(公告)号：EP0843252A2

公开(公告)日：1998-05-20

申请号：EP97309013.7

申请日：1997-11-10

Applicant: Compaq Computer Corporation

Inventor： Tran, Thanh T. ,  Landry, John A. ,  Watts, Robert F.

IPC: G06F3/16

CPC classification number: G10H1/0058 ,  G10H2240/071

Abstract: An audio circuit for a computer includes a bidirectional modem connection, a microphone input, first and second audio output channels, and an audio synthesizing circuit arranged to produce first and second synthesized audio channels. In a first mode of operation the first synthesized audio channel is applied to the first audio output channel and the second synthesized audio channel is applied to the second audio output channel. In a second mode of operation the first and second synthesized audio channels are combined into a monotonic signal and applied to the second audio output channel, and audio signals from the bidirectional modem connection are applied to the first audio output channel.

Abstract translation: 一种用于计算机的音频电路包括双向调制解调器连接，麦克风输入，第一和第二音频输出通道以及被配置为产生第一和第二合成音频通道的音频合成电路。 在第一操作模式中，将第一合成音频通道应用于第一音频输出通道，并将第二合成音频通道应用于第二音频输出通道。 在第二操作模式中，第一和第二合成音频通道被组合成单调信号并被施加到第二音频输出通道，并且来自双向调制解调器连接的音频信号被施加到第一音频输出通道。

公开(公告)号：EP0843252A3

公开(公告)日：1999-06-30

申请号：EP97309013.7

申请日：1997-11-10

Applicant: Compaq Computer Corporation

Inventor： Tran, Thanh T. ,  Landry, John A. ,  Watts, Robert F.

IPC: G06F3/16

CPC classification number: G10H1/0058 ,  G10H2240/071

Abstract: An audio circuit for a computer includes a bidirectional modem connection, a microphone input, first and second audio output channels, and an audio synthesizing circuit arranged to produce first and second synthesized audio channels. In a first mode of operation the first synthesized audio channel is applied to the first audio output channel and the second synthesized audio channel is applied to the second audio output channel. In a second mode of operation the first and second synthesized audio channels are combined into a monotonic signal and applied to the second audio output channel, and audio signals from the bidirectional modem connection are applied to the first audio output channel.

公开(公告)号：EP0701360A1

公开(公告)日：1996-03-13

申请号：EP95306371.6

申请日：1995-09-12

Applicant: Compaq Computer Corporation

Inventor： Skinker, Benjamin H. ,  Nagel, Paul S. ,  Watts, Robert F.

IPC: H04M11/06

CPC classification number: H04M11/06

Abstract: A modem which is separated into two circuit boards. One board contains the modem engine (48), while the second board contains the codec and the DAA components (49). The two boards are connected using only properly isolated digital signals so that the modem engine board does not require certification, only the codec/DAA board requiring certification. The codec/DAA board is contained in a housing (H) to provide proper high voltage protection.

Abstract translation: 调制解调器分为两个电路板。 一个板包含调制解调器引擎（48），而第二个板包含编解码器和DAA组件（49）。 这两个电路板仅使用正确隔离的数字信号连接，以便调制解调器引擎板不需要认证，只需要认证的编解码器/ DAA板。 编解码器/ DAA板包含在壳体（H）中，以提供适当的高压保护。 $$