发明名称 |
Integrated modem and line-isolation circuitry and associated method having intrusion detection |
摘要 |
An improved modem architecture and associated method are disclosed that integrate modem and line-isolation circuitry so as to achieve modem functionality and system-side isolation functionality on a single integrated circuit. The combined modem and line isolation system has both on-hook and off-hook intrusion detection for use with parallel connected phone line connection devices. During on-hook intrusion detection, when the combined modem and line isolation system is on-hook the system can detect if other parallel connected phone line connection devices are already off-hook. During off-hook intrusion detection, when the combined modem and line isolation system is off-hook the system can detect if other parallel connected phone line connection devices are attempting to go off-hook.
|
申请公布号 |
US6819710(B1) |
申请公布日期 |
2004.11.16 |
申请号 |
US20000603037 |
申请日期 |
2000.06.26 |
申请人 |
SILICON LABORATORIES INC. |
发明人 |
DUPUIS TIMOTHY J. |
分类号 |
H04L29/10;H04L25/49;H04L27/00;(IPC1-7):H04B1/38 |
主分类号 |
H04L29/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|