Distance ranging apparatus and method

Details Distance ranging apparatus and method Distance ranging apparatus and method

1980-07-30

1982-11-02

Wise, Edward J.

Boots, shoes, and leggings

367127, G06F 1520

Patent

active

043576729

ABSTRACT:
The disclosure is directed to a microprocessor-based apparatus and method for determining the distance between an object and a reference position. An embodiment of a graphical digitizer is set forth in which a microprocessor system is adapted to generate and store a count that depends upon the number of instruction cycles that the microprocessor system performs during a time interval that is a function of the travel time of acoustic wave energy traveling between the object and the reference position. In a disclosed embodiment, acoustic receivers are mounted with their axes parallel, and each receiver has a generally circular receptivity pattern.

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patent: 4264978 (1981-04-01), Whidden

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