Distance measuring device

Details Distance measuring device Distance measuring device

1991-06-24

1992-04-21

Dixon, Joseph L.

Boots, shoes, and leggings

364579, 356383, 356215, 356 4, 2502016, G01B 2100, H04N 718

Patent

active

051074494

ABSTRACT:
A distance measuring device determines the distance to an object. A position detector detects the position of a signal reflected off an object. The position detector has a plurality of outputs wherein the ratio between the outputs vary in accordance with the position of the reflected signal. The ratio is obtained from the ratio of a period of time required for an ascending integration to a period of time required for a descending integration. A control circuit causes the ascending integration and descending integration to be performed repeatedly a plural number of times and obtains the receiving position from the ratio of the periods of time required for the plural number of times of the ascending integration and the descending integration.

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patent: 5003166 (1991-03-01), Girod

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