Optical communications – Transmitter – Including compensation
Reexamination Certificate
2004-11-19
2009-11-17
Sedighian, M. R. (Department: 2613)
Optical communications
Transmitter
Including compensation
C398S193000, C398S197000, C398S137000, C372S029010, C372S033000, C372S038020
Reexamination Certificate
active
07620329
ABSTRACT:
A method and apparatus is disclosed for optic signal power control to maintain a desired or optimum optic signal power level. During start-up, a default or target value from memory may be utilized to bias or otherwise control operation of an optic signal generator or driver. During operation, pre-stored values may continue to be utilized or an open loop or closed loop control system may be utilized. An open loop control system may incorporate a temperature module or a timer module to account for changes in environment or changes due to aging that may undesirably affect system operation. A closed loop control system may incorporate one or more feedback loops that generate a compensation value to account for detected changes. In one configuration one or more peak values of the actual optic signal, or a portion thereof, are detected and processed to generate the compensation signal.
REFERENCES:
patent: 4864649 (1989-09-01), Tajima et al.
patent: 5019769 (1991-05-01), Levinson
patent: 5383208 (1995-01-01), Queniat et al.
patent: 5396059 (1995-03-01), Yeates
patent: 5594748 (1997-01-01), Jabr
patent: 5812572 (1998-09-01), King et al.
patent: 6909731 (2005-06-01), Lu
patent: 7184671 (2007-02-01), Wang
patent: 7215891 (2007-05-01), Chiang et al.
patent: 7381935 (2008-06-01), Sada et al.
patent: 2002/0105982 (2002-08-01), Chin et al.
Draper Daniel
Jones Keith R
Reintjes Maurice M.
Sada Gilberto I.
Mindspeed Technologies Inc.
Sedighian M. R.
Weide & Miller Ltd.
LandOfFree
Laser power control with automatic compensation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser power control with automatic compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser power control with automatic compensation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4123800