Calibration based DC coupled analog front end for optical...

Details Calibration based DC coupled analog front end for optical... Calibration based DC coupled analog front end for optical...

2011-01-11

2011-01-11

Olson, Jason C (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044140, C369S044350, C369S044360, C369S047150, C369S047200, C369S053260, C369S124090, C372S009000, C710S001000

Reexamination Certificate

active

07869312

ABSTRACT:
A driver circuit for use with a variety of OPU circuits has both a single-ended input and a differential input. The single-ended input is coupled to a single-ended signal path having a variable gain stage and a variable level shifter. The differential input is coupled to a differential signal path having a variable gain stage and a variable level shifter. The single-ended signal path and the differential signal path may be selectively coupled to an output. The respective variable gain stages and variable level shifters can be adjusted so that an output signal at the output has a desired dynamic range.

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