Abstract: A switched outlet module which controls power to one or more electrically powered devices which are connected to the module and which are under the control of a wall switch has a plurality of output jacks. A first pair of output jacks are switched outlet jacks and a second pair of output jacks are unswitched outlet jacks. A switching device is coupled to the plurality of outlet jacks to control which of the plurality of output jacks are the switched output jacks. Connectors are coupled to the switched outlet jacks for connecting remote controlled devices that control electronic devices coupled to the switched outlet jacks. Control circuitry is coupled to the switching device to monitor and limit a current through the switched outlet jacks, to monitor and limit a current through the switching device, and to interpret signals from remote controlled devices coupled to the connectors. Contacts are coupled to the control circuitry to couple the module to a switched electrical receptacle.

Abstract: A circuit that connects into a telephone line to correct an impedance mismatch between two pieces of equipment, which eliminates the echo that results from an impedance mismatch. The circuit is reversible and adjustable to match a wide range of impedance differences, to minimize or eliminate echo at its source on a telephone line. The circuit performs this function efficiently and at a low cost, thereby eliminating the need to add expensive echo canceling devices after the fact. The circuit does not require power. It is completely passive and exhibits very low insertion loss.