Abstract: A circuit module for general use in microcomputer based systems, such as time-of-use electronic utility meters, which maintains realtime clock calendar information even through long term power outages of 12 hours or more without the use of batteries. Realtime computations are protected by combining a very low power realtime clock calendar integrated circuit with a large capacitor as a secondary power source. The circuit module provides a reference clock calendar for the associated microcomputer. The module includes a capacitor charging circuit deriving power from a primary power source, a crystal oscillator time base circuit and a memory read/write protect circuit. During a power failure the capacitor, which is disconnected from the primary power source, supplies to the module the necessary power to maintain valid realtime computations.

Abstract: An anti-energy diversion system for mounting underneath the cover of a standard electric utility meter in order to sense common meter tampering events and indicate the occurrence of such events. A non-battery energy storage circuit extracts energy from the AC power line available in the meter to power the system even during power outages. A flashbulb associated with a heat sensitive indelible indicator is coupled to the energy storage circuit when any one of several tamper event sensor switches are closed. When a tamper event is sensed, a brilliant flash of light is discharged and the appearance of the indelible indicator is transformed.

Abstract: A test method for measuring the differential processing time of each side of a subject's auditory system and indicating brain dominance employing an audiometric screening system including signal generation electronics, operator controls, displays and a set of earphones. The system electronics generate left channel and right channel signals to produce complex aural stimuli. The system allows the testor to adjust and monitor the phase of the two aural stimuli, one injected into each ear of the test subject, until subject perceives the source of the sound. The system provides a digital readout of the signal phase, yielding a quantitative measure of the differential processing time of a subject's auditory system and brain side dominance.

Abstract: An electric power consumption communicator system which includes a non-contact electric utility meter monitoring device which converts meter wheel revolutions into electronic digital pulses. An encoder device converts the digital pulses to coded electronic oscillations which are coupled onto existing power lines at the meter location. The existing power lines provide the medium for communicating coded meter intelligence to all existing power outlets in a residence or building. One or more signal decoders located at any power outlet decouple and reconstruct the coded meter intelligence into a digital format conducive to further processing.

Abstract: An automatic load control system for electric utility meters which includes an electric meter monitoring device which converts meter wheel revolutions into electronic digital pulses representing a known quantity of power consumption and a digital circuit which determines meter pulse rate or electric power demand and generates load control commands when predetermined demand levels are exceeded. Commands are transmitted from the monitoring device to a remote load control point by a data link to deactivate specific loads during periods of peak demand. Commands are also transmitted to selected remote locations for the purpose of switching indicator lights and alarms in order to display demand status to the power consumer.

Abstract: An electro-optical remote meter reading system providing automatic load control and time related and peak demand readings from conventional electric power meters, including an electro-optical monitor unit having a non-contact meter scanner providing meter data to a digital storage and readout unit, and an electro-optical transponder effective to receive and to transfer data from the latter unit and to convert such data into a train of laser radiation pulses which are emitted in response to interrogation by a laser radiation pulse from a remote mobile interrogator unit which triggers the noncoded interrogation of the transponder. The interrogator includes a laser receiver and a pulse converting sub-system and is associated with further digital data processing equipment. A variant of the reading system interacts with a plurality of meters in a common location and provides sequential interrogation of a common, i.e. single, transponder, associated with the plurality of meters.