The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database


IP.com Disclosure Number: IPCOM000027620D
Original Publication Date: 1998-Apr-30
Included in the Prior Art Database: 2004-Apr-08

Publishing Venue

Xerox Disclosure Journal


Disclosed is a multifunction image input scanner device which integrates several common use functions, such as, scanning, optical or overhead projection, and video display capability, into a single device, for example, a commercially available optical overhead projector. In an exemplary embodiment, the device comprises a conventional overhead projector, for example, 3M Corporation Model 5088 projector, wherein the illumination and projection lenses are both located above a base platen in a housing; a scanning sensor and optics of a document or board scanner in the housing; and the base platen comprises a document board or an object scanner and a Video Display Terminal (VDT). The document scanner and board scanner use, for example, a Charge Coupled Device (CCD), the scanner's optics, and scanner's mechanicals. The scanners and VDT interface to a workstation. The overhead projector and the VDT use the factory projection optics of the projector. The combination of devices and functions provides space and cost savings. Documents and board displays can be combined within a single scan and document location, and detection is facilitated by the contrast between the specular lens on the overhead platen and a diffuse document.