Browse Prior Art Database

LED Driver Output Level Control Via Reflected Light Signal Sensing

IP.com Disclosure Number: IPCOM000056135D
Original Publication Date: 1980-Nov-01
Included in the Prior Art Database: 2005-Feb-14

Publishing Venue

IBM

Related People

Authors:
Moore, VS Romero, CN Walewski, LG Wylie, TJ [+details]

Abstract

The driver output level control is obtained by sensing, via a sensor at the driving end of a fiber-optic communication link, the level of the reflected light from the receiving end of the fiber-optic cable, and controlling the LED (light-emitting diode) driver by feedback in accordance therewith. The driver is controlled to drive the LED at the minimum level necessary to overcome the fiber-optic losses.