Patent ID: 6299272
Filing Date: 2001-10-09
Classification: B41J,H03K

Abstract:
An apparatus for pulse width modulation comprising:a delaying means;said delaying means receiving a pulse and creating a plurality of modulated pulses;said pulse having a first pulse edge and a second pulse edge;a lookup table for storing an individual delay data for each of said plurality of modulated pulses;said delaying means being in a communication with said lookup table for receiving said delay data;said delaying means being responsive to said delay data from said lookup table to delay only said first pulse edge of said pulse according to each of said individual delay data to create a plurality of delayed first pulse edges; andsaid delaying means sending out each of said plurality of delayed first pulse edges in a combination with said received second pulse edge of said pulse as the first pulse edge and second pulse edge of a modulated pulse to create said plurality of modulated pulses with different pulse widths.