Patent ID: 6836343
Filing Date: 2004-12-28
Classification: B41J,G11B,H01S

Abstract:
A method for driving laser diodes arranged in close proximity to one another in a laser recording device, comprising the steps of:charging each laser diode by a driver current that determines a light power output by the laser diode; with the driver currents, controlling video signals modulated with information to be recorded; connecting a correction unit between a first laser diode forming a crosstalk source and a second laser diode forming a crosstalk sink; controlling the correction unit with the video signal or the driver current of the first laser diode; employing an output signal of the correction unit as a correction signal for the video signal or for the driver current of the second laser diode; and determining a transfer function of the correction unit such that an optimum compensation of crosstalk is achieved between the laser diodes.