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. 15, 2005
Filed:
Jun. 13, 2000
Richard Oliver Kahn, Austin, TX (US);
Richard Oliver Kahn, Austin, TX (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The present invention relates to a camera () with strobe flash illumination () for capturing an image of an object (), and to a document scanning system () and method of using such a camera () to capture an image of a document (). The camera () comprises an image capture means, an objective lens () with a field of view () to image optical radiation () from an object plane () onto the image capture means (), a strobe flash () for illuminating the object plane (), electronic pulse circuitry to pulse the strobe flash () at a rate which is sufficiently quick that the illumination appears to a user of the camera () to be substantially steady owing to persistence of vision, and a shutter means () to synchronize the capture of one or more images by the image capture means, each image being captured with at least one pulse from the strobe flash. The shutter means () is adapted to capture images at a rate substantially below the rate at which the strobe flash () is pulsed.