Inventor
BELSER KARL A
US47 patents
⚠️ This page may combine multiple inventors who share the name “BELSER KARL A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEAGATE TECHNOLOGY LLC
27 patentsUS6643082B1Nov 4, 2003
Servo sector format for a patterned media
SEAGATE TECHNOLOGY LLC127 citations98
US6411459B1Jun 25, 2002
Advanced servo writing method for hard disc drives
SEAGATE TECHNOLOGY LLC90 citations98
US6738207B1May 18, 2004
Method for synchronizing the write current for magnetic recording with the bit islands on discrete bit patterned media
SEAGATE TECHNOLOGY LLC108 citations97
US6631046B2Oct 7, 2003
Servo track writing using extended copying with head offset
SEAGATE TECHNOLOGY LLC72 citations94
US6898031B1May 24, 2005
Method for replicating magnetic patterns on hard disk media
SEAGATE TECHNOLOGY LLC27 citations93
US6754032B1Jun 22, 2004
Method and system for radial and circumferential alignment of data tracks on patterned media
SEAGATE TECHNOLOGY LLC24 citations93
US6751035B1Jun 15, 2004
Method and system for initializing patterned media
SEAGATE TECHNOLOGY LLC48 citations93
US6751046B1Jun 15, 2004
Writing servo data patterns on a data storage disk to account for repeatable and non-repeatable disturbances and thereby provide concentric data tracks
SEAGATE TECHNOLOGY LLC31 citations93
US6529460B1Mar 4, 2003
Detection of pulse peak instance and amplitude in a storage drive
SEAGATE TECHNOLOGY LLC23 citations93
US6264848B1Jul 24, 2001
Method for providing track position and identification information for data storage devices
SEAGATE TECHNOLOGY LLC23 citations93
US6785075B2Aug 31, 2004
Self-writing servo and clock fields on a recording medium
SEAGATE TECHNOLOGY LLC41 citations92
US6706358B1Mar 16, 2004
Storage disk comprising depressions and /or raised features
SEAGATE TECHNOLOGY LLC23 citations92
US6614608B1Sep 2, 2003
Buried servo patterned media
SEAGATE TECHNOLOGY LLC24 citations92
US6496943B1Dec 17, 2002
Apparatus and method for efficient defect management in a magneto-optical data storage system
SEAGATE TECHNOLOGY LLC23 citations92
US6510015B2Jan 21, 2003
Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same
SEAGATE TECHNOLOGY LLC39 citations91
US6775100B1Aug 10, 2004
Laser assisted track width definition and radial control with magnetic recording
SEAGATE TECHNOLOGY LLC26 citations90
US6330279B1Dec 11, 2001
System and method of correcting gain and offset error in a signal amplifier for a position sensitive detector
SEAGATE TECHNOLOGY LLC28 citations90
US6604223B1Aug 5, 2003
System and method for correcting interference errors in data encoded on storage media
SEAGATE TECHNOLOGY LLC15 citations80
US6185174B1Feb 6, 2001
Disk drive system having hybrid analog/digital pulse peak instance/amplitude data detection channels
SEAGATE TECHNOLOGY LLC13 citations74
US6868048B1Mar 15, 2005
Data storage system having thermally activated readout
SEAGATE TECHNOLOGY LLC8 citations73
US6469465B1Oct 22, 2002
Precision micro-motor position controller
SEAGATE TECHNOLOGY LLC8 citations69
US6788641B2Sep 7, 2004
Method for providing track position and identification information for data storage devices
SEAGATE TECHNOLOGY LLC2 citations63
US6421313B1Jul 16, 2002
System and method for encoding read-only information on storage media
SEAGATE TECHNOLOGY LLC6 citations63
US6781785B2Aug 24, 2004
Method and system for utilizing circular marks in position error signal patterns
SEAGATE TECHNOLOGY LLC4 citations62
US6373792B1Apr 16, 2002
Reduction of a temperature in a lubricant interface
SEAGATE TECHNOLOGY LLC6 citations62
US6349079B1Feb 19, 2002
System and method for detecting a head positioning error within a computer memory device
SEAGATE TECHNOLOGY LLC6 citations62
US7518827B2Apr 14, 2009
Laser assisted track width definition and radial control with magnetic recording
SEAGATE TECHNOLOGY LLC0 citations49
SEAGATE TECHNOLOGY
10 patentsUS6345021B1Feb 5, 2002
System and method of efficient servo sector encoding
SEAGATE TECHNOLOGY24 citations93
US6204989B1Mar 20, 2001
Controlling a media master writing machine to produce curvilinear servo sector patterns
SEAGATE TECHNOLOGY39 citations92
US5889641AMar 30, 1999
Magneto-resistive magneto-optical head
SEAGATE TECHNOLOGY38 citations92
US6278667B1Aug 21, 2001
System and method for light power control in a magneto-optical drive
SEAGATE TECHNOLOGY17 citations84
US6018512AJan 25, 2000
System and method of encoding for identifying a given surface among several identically patterned disk surfaces
SEAGATE TECHNOLOGY8 citations74
US5892745AApr 6, 1999
System and method to compensate for data defects within a magneto-optical computer memory device
SEAGATE TECHNOLOGY9 citations74
US6052348AApr 18, 2000
System and method for write location defect compensation in computer storage media
SEAGATE TECHNOLOGY11 citations72
US6331968B1Dec 18, 2001
System and method to compensate for data defects within a magneto-optical computer memory device
SEAGATE TECHNOLOGY3 citations63
US6275455B1Aug 14, 2001
System and method for generating position error signals within a computer memory device
SEAGATE TECHNOLOGY5 citations63
US5974019AOct 26, 1999
Optical system for two-dimensional positioning of light beams
SEAGATE TECHNOLOGY6 citations62
IBM
7 patentsUS4912585AMar 27, 1990
Discrete track thin film magnetic recording disk with embedded servo information
IBM75 citations96
US4914725AApr 3, 1990
Transducer positioning servo mechanisms employing digital and analog circuits
IBM86 citations93
US5400313AMar 21, 1995
Optical data storage system and method with reduced heat buildup
IBM36 citations91
US5418773AMay 23, 1995
Zoned record carrier
IBM47 citations90
US5327408AJul 5, 1994
Optical disk with sector servo patterns compensating for variations in pattern size and/or radial velocity
IBM18 citations74
US5103362AApr 7, 1992
Method of electrostatically sensing track position information for magnetic recording medium
IBM9 citations70
US4168535ASep 18, 1979
Non-volatile bubble domain memory system
IBM3 citations63