Abstract: In an actuating and dual scanning integrated circuit, modulators 24 of respective programmable power regulators 11 transmit to respective power converters, energy transfer commands corresponding to programming performed in the circuit. Modulation of the modulators' output signals depends on the programming and on feedback received from output sites 7 that it controls. The circuit communicates through a series link with a main control system 28 so that the control system varies the circuit's programming and receives data corresponding to circuit performance.

Abstract: A hybrid circuit for an electric operating and scanning interface is especially applicable to electronic recorders of electromechanical telephone stations. The hybrid circuit controls voltage and current parameters on different elements of the station in different situations. The hybrid circuit scans the condition of telephone station elements controlled by it, and programmably applies and receives current and voltage to and from the telephone station elements on which it acts.