Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Write compensation method and magnetic disk apparatus adapted for high-density recording










Image Number 11 for United States Patent #6157506.

A write signal is examined so as to recognize occurrence of magnetization reversal for a first bit to be recorded, a second bit preceding the first bit and a third bit preceding the second bit. A write signal reversal for the first bit is delayed by a first delay when the second bit has an associated write signal reversal and when the third bit does not have an associated write signal reversal. A write signal reversal for the first bit is delayed by a second delay set to be smaller than the first delay, when the third bit has an associated write signal reversal and when the second bit has an associated write signal reversal, and a write signal reversal for the first bit is delayed by a third delay set to be smaller than the second delay, when the third bit has an associated write signal reversal and when the first bit does not have an associated write signal reversal.








 
 
  Recently Added Patents
Downhole telemetry system
Integrated projector system
Efficient paging in a wireless communication system
Wristwatch
Method, apparatus or computer program for changing from scheduled to unscheduled communication modes
Electronic devices with voice command and contextual data processing capabilities
Concentrating photovoltaic system module with actuator control
  Randomly Featured Patents
High voltage discharge lamp device
Security system and method for granting access
Multiple item adjustable clothes hanger
Rigid foams using blends of chlorofluorocarbons and alkyl alkanoates as blowing agent
Conformance control module
Compact disk container
Method for preparing a magnetic recording medium and a magnetic disk using the same
Handle and fuse switch
Interactive type automatic programming method including automatic re-execution of program statements
Device and method for identifying mail items