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. 05, 2002
Filed:
Sep. 16, 1997
Jean-Marie Gatto, London, GB;
Thierry Brunet De Courssou, Palo Alto, CA (US);
Salim Callec, Soisy sous Montmorency, FR;
Cyberscan Technology, Inc., Palo Alto, CA (US);
Abstract
A circuit implemented on a single piece of silicon or a low cost hybrid circuit that controls all the functions required to operate sheet-fed, flatbed, handheld, slides, duplex, drum and 2D still-image document scanners. The circuit performs monochrome image sensor management, color image sensor management, light source modulation, motor management, Anti-Skew Auto-Start, pixel correction, adaptative thresholding, black-sides removal, image enhancement, dithering, up/down sampling, image compression, scan and forward action management, memory management, and host interface management with plug and play capability.