Integrated semiconductor motion sensor

Details Integrated semiconductor motion sensor Integrated semiconductor motion sensor

1998-02-26

1999-12-07

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340555, G01V 904

Patent

active

059987804

ABSTRACT:
An algorithm and circuits for sensing a moving optical stimulus. Three sequentially produced electrical signals at different locations in response to a moving stimulus are used to generate a monotonic function of velocity which is substantially insensitive to the global illumination level and stimulus contrast. Temporal aliasing is minimized by using an adaptive inhibition scheme. Dense arrays of such motion sensors can be monolithically integrated for the acquisition of entire velocity maps which can be used to obtain imaging information suitable for navigation of mobile systems in complex environments.

REFERENCES:
patent: 4943800 (1990-07-01), Ikeda et al.

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