Abstract: A method and apparatus for generating feedback information from a short series of observations on one or more dynamic processes which may, for example, be obtained from a goal-driven system which is subject to unknown exogenous disturbances and/or uncertain changes in its internal characterizatics. A novel computational structure, preferably in the form of an analog circuit, is used to accomplish the aforementioned objective through its nonlinear and/or time-varying operations upon the supplied signal(s). Autonomously-tuned parameters indicate the sensitivity of the process to deterministic or random transient components (e.g., impulsive excitations). In the context of forecasting, or predictive control, the system can adapt extremely rapidly to changes in the process or signals to estimate the long-term or ultimate outcome of a closed-loop, or otherwise-compensated (goal-directed) process.

Abstract: Apparatus for the measurement and analysis of tooth-jaw structures comprising a source of illumination, an optodetector and an integral linear displacement transducer. The source of illumination is used to transilluminate tooth-jaw structures while the optodetector receives light which has transilluminated the tooth-jaw structure. The linear displacement transducer provides a fast, accurate and precise size, distance and spatial measurement of structures comprising the tooth-jaw milieu. The system is particularly adapted for the intraoral examination, measurement and analysis of unerupted teeth and their interdental spaces to detect a nutritional status that may exist which would impede the development of tooth-jaw concordance. A reiterative computer controlled process is employed to monitor and control preventive or remedial nutrition.