发明名称 Switching circuit for automatically routing audio and data signals between a modem, telephone, and I/O devices
摘要 The present invention pertains to a detection and switching circuit for processing and then routing signals between various devices (e.g., modem, telephone, speaker-phone, external or on-board speakers, microphone, etc.) coupled to a computer system. First, a user plugs the desired devices to the computer system. Next, the user selects amongst several different modes of operation. The circuit monitors the status of these various devices and the status of the incoming signals on the phone line. The resident software then processes the signals (e.g., analog audio signals or digital data signals) into the particular formats corresponding to these particular devices. Finally, the switches are set to route the signals to the appropriate devices. The processing and switching steps are performed automatically in accordance with the particular mode that the user has selected.
申请公布号 US5822406(A) 申请公布日期 1998.10.13
申请号 US19970938142 申请日期 1997.09.26
申请人 CIRRUS LOGIC, INC. 发明人 BROWN, PAUL
分类号 H04M1/60;H04M1/654;H04M1/82;H04M11/06;(IPC1-7):H04M1/64 主分类号 H04M1/60
代理机构 代理人
主权项
地址