Abstract: An external signal processor is provided for use with a personal computer. The signal processor incorporates hardware components for receiving external analog or frequency signals and for converting the signals to digital form for retrieval by the computer in nibble mode. Interconnection with the personal computer is through the parallel printer port, with the signal processor installed between the computer and an external printer. Normal printer functions are available when a transparent mode is enabled. The signal processor can also monitor one or more external digital signals and output one or more digital control signals. An example of programmable control software is also provided.

Abstract: A food product dispensing apparatus and method which prevents the product from being damaged when the product is dispensed. A food product cooking apparatus and method which preserves the cooking oil such that the oil needs only be changed at two to four week intervals. The present apparatus and method relates to vending-frying machines for dispensing and cooking food products. The instant invention extends the intervals between when such vending machines need be serviced.

Abstract: A food product dispensing apparatus and method which prevents the product from being damaged when the product is dispensed. A food product cooking apparatus and method which preserves the cooking oil such that the oil needs only be changed at two to four week intervals. The present apparatus and method relates to vending-frying machines for dispensing and cooking food products. The instant invention extends the intervals between when such vending machines need be serviced.

Abstract: An exercise/therapy support system useable with a personal-exercise-type machine. A sonar ranging device monitors motion in the machine during exercise to produce an exercise-related, visual display which is compared, in real-time, with a preprogrammed, selected-exercise-regime display. Post-exercise data can be made available for analysis.