Inventor
LEWKOWICZ JULIAN
US12 patents
⚠️ This page may combine multiple inventors who share the name “LEWKOWICZ JULIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
9 patentsUS5216659AJun 1, 1993
Laser power calibration by measuring laser drive current at out of focus and in focus conditions
IBM67 citations95
US5309461AMay 3, 1994
Compensated laser drive circuit
IBM47 citations92
US5185734AFeb 9, 1993
Calibrating and power-protecting laser drive circuits
IBM37 citations92
US5070495ADec 3, 1991
Write calibration for magnetooptic disk recorders
IBM60 citations92
US5101395AMar 31, 1992
Data detection employing high-speed baseline tracking compensation
IBM37 citations91
US4075671AFeb 21, 1978
Automatic ac biasing of a magnetoresistive element
IBM45 citations86
US4191977AMar 4, 1980
Biasing of magnetoresistive read head using gyrators
IBM26 citations81
US4731773AMar 15, 1988
Thermally-induced recording with reduced harmonic distortion
IBM17 citations73
US4998233AMar 5, 1991
Acquiring focus in optical systems using a focus error signal and a laser drive signal
IBM19 citations69
MAXTOR CORP
3 patentsUS6678102B1Jan 13, 2004
High fly write detection method
MAXTOR CORP28 citations91
US6975467B1Dec 13, 2005
Method and apparatus for high fly write detection in a disk drive
MAXTOR CORP18 citations84
US6987628B1Jan 17, 2006
Method and apparatus for high fly write detection using stored amplitude values
MAXTOR CORP11 citations81