Abstract: A method and apparatus for modeling disease transitions in individuals includes the steps of identifying a population of individuals and defining a disease transition they could undergo. One or more variables are defined that represent medical information collected from these individuals. These variables are considered candidate variables that operate to predict the disease transition to varying degrees of accuracy. A logistic regression technique, along with information stored in an electronic database, are used to determine the degree of accuracy to which each candidate variable predicts the disease transition for the population of individuals. Certain candidate variables are then chosen according to how accurately they predict the disease transition. This set of chosen variables is then used to form a mathematical model, which in turn is used to predict this disease transition for that population of individuals.

Abstract: A 2-D pointer motor provides for panning (sideways actuate motion) and tilt (yaw motion) and may be made smaller than one-cubic inch. The motor is preferably controlled by a microcomputer based controller using pulse-width modulation (PWM) to separately control each of its three coils. The coils are arranged orthogonally to provide a single unified torque vector which turns the rotor and accurately points it in the desired directions. The motor is especially adapted to carry a sensor such as a CCD array.

Abstract: A system and method is provided to transmit logmap video images through telephone line band-limited analog channels. The pixel organization in the logmap image is designed to match the sensor geometry of the human eye with a greater concentration of pixels at the center. The transmitter divides the frequency band into channels, and assigns one or two pixels to each channel, for example a 3KHz voice quality telephone line is divided into 768 channels spaced about 3.9Hz apart. Each channel consists of two carrier waves in quadrature, so each channel can carry two pixels. Some channels are reserved for special calibration signals enabling the receiver to detect both the phase and magnitude of the received signal. If the sensor and pixels are connected directly to a bank of oscillators and the receiver can continuously receive each channel, then the receiver need not be synchronized with the transmitter.