Patent ID: 7352659

Claim:
A method of controlling read-out from a magneto-optical recording medium, said recording medium comprising a storage layer and a read-out layer, wherein an expanded domain leading to a pulse in a reading signal is generated in said read-out layer by copying a mark region from said storage layer to said read-out layer upon heating by a radiation power and with the aid of an external magnetic field, said method comprising the acts of: providing said reading signal to a clock generator for generation of a clock signal supplied to an optical pick-up unit and a magnetic head driver; an analysis act including providing said reading signal to an analyzer for analyzing the waveform of said reading signal and forming an analysis signal, and a controlling act including providing said analysis signal to a controller for controlling a copy window size of said mark copying based on said analysis signal by applying a first control signal to said optical pick-up unit and a second control signal to said magnetic head driver.