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DUOBINARY MODULATION APPLIED TO PULSE IMAGING

IP.com Disclosure Number: IPCOM000024450D
Original Publication Date: 1980-Aug-31
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal

Abstract

Reversing the phase of the carrier to an Acousto-Optic (A/O) modulator of a laser driven raster output scanner (ROS) system between pulses to increase the bandwidth of the modulator is known. This successfully increases the bandwidth of the ROS system when modulating with an alternating 1/0 bit pattern. In this case, the effective bandwidth of the system is doubled. However, for other bit patterns, the result is not as satisfactory.