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AN OPTICAL TECHNIQUE FOR ACHIEVING READ/WRITE SCANNING FROM A COMMON SCANNING ELEMENT

IP.com Disclosure Number: IPCOM000024363D
Original Publication Date: 1980-Jun-30
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal

Abstract

A desirable approach for the design of an optical scanning device which must both read input information and provide an output to a writing process is to obtain precise optical synchronism between the two light beams, thereby avoiding the necessity to either phase-lock two independent scanning elements of a simultaneous system or to store read data in the case of a non-simultaneous scanning system.