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:
Feb. 24, 2004
Filed:
Oct. 15, 2002
Lee Batchelder, Derrey, NH (US);
Richard Lehman, Nashua, NH (US);
Howtek Devices Corporation, Nashua, NH (US);
Abstract
A dual digitizer for digitizing both transparent and reflective data mediums is provided where light from the reflective illuminator reflects off the transparent illuminator when the transparent illuminator is off to provide a white reference signal for use in calibrating the dual digitizer. A method of calibrating a dual digitizer for reflective scans includes: digitizing a transparent data medium; calibrating the dual digitizer to establish a white reference signal, the calibrating step including generating a light beam, reflecting a first portion of the light beam off a transparent illuminator, and utilizing the first portion of said light beam to establish the white reference signal; and digitizing a reflective data medium. The dual digitizer may be used in medical applications to digitize a transparent data medium such as an X-ray film.