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:
Mar. 14, 2006
Filed:
Aug. 30, 2002
Pierre-yves Burgi, Geneva, CH;
Eric Grenet, Neuchatel, CH;
Pierre-francois Ruedi, Hauterive, CH;
CSEM Centre Suisse d'Electronique et de Microtechnique S.A., Neuchatel, CH;
Abstract
A method of detecting relative movement between a scene from which radiation emanates and a matrix of pixels observing the scene and capable of detecting the radiation, each pixel of the matrix measuring contrast vector information representative of the observed scene monitors the evolution of the contrast vector information in each pixel of the matrix During a first time interval, it detects among the pixels the pixel whose magnitude vector information value is greater than the magnitude vector information value of the adjacent pixels. During a second time interval consecutive to the first time interval it detects if the magnitude vector information of the pixel whose value was at a maximum during the first time interval has decreased. It generates output signals representative of the relative movement if a decrease is detected.