The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Jul. 07, 2000
Geoffrey L. Barrows, Washington, DC (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An optic flow sensor is provided which employs a plurality of photoreceptors and which produces a final optic flow signal that is a robust measurement of the optic flow as seen by the photoreceptors. Each array of a plurality of feature detector arrays receives, as input, photoreceptor signals from the receptors and generates a plurality of feature signals based thereon. Each optic flow measuring circuit or algorithm of a plurality of optic flow measuring circuits or algorithms receives, as input, one of the plurality of feature signals. The optic flow measuring circuits or algorithms each generate an optic flow measurement signal so that a plurality of optic flow measurement signals are generated. A fusion circuit or algorithm, which can, e.g., employ a leaky integrator circuit or algorithm, receives, as input, the optic flow measurement signals and generates the final optic flow signal based thereon.