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Simple Dynamic Focusing Circuit for Display Monitor

IP.com Disclosure Number: IPCOM000036630D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

Authors:
Ohsawa, T Suzuki, H [+details]

Abstract

Disclosed is a dynamic focusing circuit which does not require high- voltage device components to mix horizontal focus waveform and vertical focus waveform by a current mixing method. The amplitude of each dynamic voltage, horizontal or vertical focus voltage, can be set independently, and can be changed instantly by an additional transistor switch to fit a multi-mode display monitor.