Method for high volume of photo disk using Cross-Talk technique

摘要

The present invention relates to a method for increasing the capacity of an optical disc using an optical pickup apparatus in which a main beam and an inner / outer main sub-beam are spaced apart by a distance L and are inclined relative to a main track and an adjacent track Particularly, the delay time parameter τ of the signal to be accessed through the main beam and the inner and outer main sub-beams on the same radial line of the optical disk due to the linear velocity V And a signal MB_PS to be accessed in the main beam MB on the basis of a signal SBF_PS to be accessed in the inner sub-beam SBF is delayed by a time corresponding to the variable? And a signal SBE_PS to be accessed in the outer sub-beam SBE by a time corresponding to a 2-integer multiple of the parameter τ; and a third step of delaying the signal from the inner sub- A fourth step of subtracting the signal SBF_PS from the main beam MB to obtain the calculated value and a signal MB_PS to be accessed in the main beam MB delayed through the second process, The present invention provides a method for increasing the capacity of an optical disc using Closstoke technology. The present invention provides a method for increasing the capacity of an optical disc using Closstoke technology, There is an effect that can achieve high capacity.