发明名称 Spectrum monitoring for PSTN subscribers
摘要 Systems for connecting PSTN lines to telephones, handsets, computers, telecopy machines and other end user interfaces or consumer electronics devices in a residence or business. Systems according to the present invention include Network Control Units which form the center of a star topology and which communicate via RF link with Wireless Access Units and handsets. Wireless Access Units feature an interface, such as, for example, a standard telephone jack, for accommodating a telephone, a fax machine, a compute modem or other device. Computers or other devices may also be accommodated by Wireless Access Units having other physical and virtual interfaces, including, for instance, serial ports or network interfaces. The Wireless Access Units may also be digital to accommodate ISDN for any other digital standard. Wireless control/monitoring accessories may also be employed to communicate with the Network Control Unit and provide additional functionality such as entrance monitoring, baby monitoring, HVAC control and other services. Such systems may monitor various bands of interest, process, store and change their operation according to information associated with signals or noise in such bands, and, if desired, report such information upstream to management nodes for various purposes.
申请公布号 US6418131(B1) 申请公布日期 2002.07.09
申请号 US19980083464 申请日期 1998.05.22
申请人 LAKE COMMUNICATIONS LIMITED 发明人 SNELLING RICHARD K.;MCINTOSH P. STUCKEY;TAYLOR JOHN C. W.;TUCKER MARK
分类号 H04M3/22;H04L12/28;H04M1/253;H04M1/723;H04M1/725;H04M3/56;H04Q11/04;H04W84/16;H04W88/02;(IPC1-7):H04J3/16 主分类号 H04M3/22
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