Assignee
LASER MAGNETIC STORAGE INT
US37 patents
Top patents by PatentIndex Score
US4683520AJul 28, 1987
Mechanical shock mount system for electrical apparatus
LASER MAGNETIC STORAGE INT57 citations96
US4823214AApr 18, 1989
Disk drive for cartridge disks
LASER MAGNETIC STORAGE INT29 citations92
US4791511ADec 13, 1988
Disk cartridge with slide door engageable in either of two orientations
LASER MAGNETIC STORAGE INT30 citations92
US4779253AOct 18, 1988
Sampled servo for an optical disk drive
LASER MAGNETIC STORAGE INT27 citations92
US4740949AApr 26, 1988
Laser access apparatus for optical disk drive
LASER MAGNETIC STORAGE INT27 citations92
US4707137ANov 17, 1987
Device and method for testing the wave front quality of optical components
LASER MAGNETIC STORAGE INT35 citations92
US4646281AFeb 24, 1987
Read channel for an optical recorder
LASER MAGNETIC STORAGE INT33 citations92
US5031166AJul 9, 1991
Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor
LASER MAGNETIC STORAGE INT22 citations91
US4879707ANov 7, 1989
Optical disk tracking and seeking systems specific track formats using discontinuities
LASER MAGNETIC STORAGE INT38 citations91
US4828201AMay 9, 1989
Apparatus for coupling a drive motor to a leader block loading/unloading mechanism
LASER MAGNETIC STORAGE INT24 citations91
US4679747AJul 14, 1987
Apparatus for loading and unloading the leader block of a tape cartridge
LASER MAGNETIC STORAGE INT27 citations91
US4907212AMar 6, 1990
Method and apparatus for calibrating an optical disk system
LASER MAGNETIC STORAGE INT44 citations90
US4685097AAug 4, 1987
Power control system for a semiconductor laser
LASER MAGNETIC STORAGE INT66 citations89
US4945526AJul 31, 1990
Actuator assembly for optical disk systems
LASER MAGNETIC STORAGE INT23 citations88
US4789977ADec 6, 1988
Optical data recording device
LASER MAGNETIC STORAGE INT25 citations86
US4855977AAug 8, 1989
Track seeking apparatus and method using sampled information
LASER MAGNETIC STORAGE INT20 citations82
US4644521AFeb 17, 1987
Optical memory cartridge and drive apparatus
LASER MAGNETIC STORAGE INT23 citations82
US4970710ANov 13, 1990
Method and apparatus for focus and tracking in an optical disk system
LASER MAGNETIC STORAGE INT18 citations74
US4864552ASep 5, 1989
Driving signal for coarse servo employing sampled offset signal
LASER MAGNETIC STORAGE INT12 citations74
US4802154AJan 31, 1989
High density codes for optical recording
LASER MAGNETIC STORAGE INT7 citations74
US4745500AMay 17, 1988
Disk drive for cartridge disks
LASER MAGNETIC STORAGE INT20 citations74
US4694259ASep 15, 1987
Data tracking clock recovery system having media speed variation compensation
LASER MAGNETIC STORAGE INT20 citations73
US5060106AOct 22, 1991
Disk cartridge including door opening mechanism and improved hub assembly
LASER MAGNETIC STORAGE INT16 citations72
US4882721ANov 21, 1989
Offset for protection against amorphous pips
LASER MAGNETIC STORAGE INT18 citations72
US4718054AJan 5, 1988
Servo error write blanking circuit for an optical recording disk
LASER MAGNETIC STORAGE INT9 citations71
US5022017AJun 4, 1991
Magneto optic data recording system with variable field strength, actuator therefor and method of providing
LASER MAGNETIC STORAGE INT8 citations70
US4914645AApr 3, 1990
Optical disk tracking and seeking systems and specific track formats using servo areas
LASER MAGNETIC STORAGE INT14 citations70
US4862646ASep 5, 1989
Apparatus and method for production of single element toric lenses of very small proportions
LASER MAGNETIC STORAGE INT8 citations70
US4805045AFeb 14, 1989
Apparatus for loading and unloading a tape cartridge
LASER MAGNETIC STORAGE INT11 citations70
US4962492AOct 9, 1990
Magneto-optic data recording system, actuating device therefor and method of providing same
LASER MAGNETIC STORAGE INT11 citations68
US4695994ASep 22, 1987
Method and apparatus for varying laser intensity level
LASER MAGNETIC STORAGE INT13 citations68
US4959823ASep 25, 1990
Tracking and seeking system for use with an optical record carrier having a wobbled track format
LASER MAGNETIC STORAGE INT19 citations67
US4879708ANov 7, 1989
Optical disk tracking and seeking systems specific track formats using wobbled pits
LASER MAGNETIC STORAGE INT6 citations63
US4740944AApr 26, 1988
Optical disk phase lock loop with comb filter
LASER MAGNETIC STORAGE INT2 citations63
US4768180AAug 30, 1988
Multistage tracking system
LASER MAGNETIC STORAGE INT8 citations58
US4980880ADec 25, 1990
Method and apparatus for simultaneously reading both sides of an optical storage disk
LASER MAGNETIC STORAGE INT0 citations51
US4879706ANov 7, 1989
Method and apparatus for focus and tracking in an optical disk system
LASER MAGNETIC STORAGE INT6 citations46