Optical disc system having current monitoring circuit with improved bias coil assembly and controller for laser driver and method for operating same

摘要: An optical drive system includes a computer that monitors the current in an improved bias coil assembly conjunction with magnetomotive field generator to determine when predetermined threshold is exceeded. The wire wrapped around center bar contained by housing. positionable above information storage medium so entire may be within magnetic thereby allowing writing of all portions medium. When exceeded, sufficiently strong generated permit on utilizing laser. A laser pulse then enabled. device achieves substantially shortened write cycle while employing assembly.