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:
Sep. 02, 2008
Filed:
Apr. 19, 2002
Sebastien Riccardi, Saint Martin d'Heres, FR;
Vincent Texier, Panissage, FR;
Marc Michel, Ste Agnes, FR;
Sebastien Riccardi, Saint Martin d'Heres, FR;
Vincent Texier, Panissage, FR;
Marc Michel, Ste Agnes, FR;
Trixell S.A.S., , FR;
Abstract
The invention pertains to an imaging device and to a process for controlling the device. The device comprises a power supply (), matrix means allowing an image to be emitted or sensed, the matrix of the matrix imaging means being scanned at a scanning frequency, the power supply () converting a DC input voltage (Dce) into at least one DC output voltage (DCs) allowing the powering of the matrix imaging means (). The power supply () is of chopped type and chops the DC input voltage (Dce) at a chopping frequency dependent on the scanning frequency. In the process for controlling the imaging device described above, a useful image is preceded by an offset image and a correction dependent on the offset image is applied to the useful image.