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:
Jan. 31, 1995
Filed:
Mar. 12, 1993
Owen H Wilson, Breslau, CA;
Geoffrey G Marlow, Kitchener, CA;
NCR Corporation, Dayton, OH (US);
Abstract
A moveable member which is moveable between first and second positions relative to an optical axis of an imaging camera is used to calibrate the camera. The moveable member has a first reference member positioned at the optical axis when the moveable member is in the first position, and has a second reference member positioned at the optical axis when the moveable member is in the second position. A preferred embodiment has a first calibration device for a front camera and a second calibration for a rear camera when both the front and the rear of the document are to be imaged. A single actuator is used to simultaneously move both moveable members of the first and second calibration devices between the positions mentioned.