Writing repeating patterns of features to a substrate
AssigneeDoug Carson & Associates, Inc.
InventorDouglas M. Carson
Life of this patent
Estimating the term…
Abstract
Method and apparatus for writing repeating patterns of features to a substrate, such as a data storage medium. In accordance with some embodiments, a multi-dimensional pattern of discrete features of different sizes to be written to a substrate is divided into a plurality of contiguous regions. A unique set of compensation values is assigned to each region. A write beam of a write system is used to write the features to the substrate responsive to said unique sets of compensation values so that all of the features having a common size in at least one region are written using the same compensation values from the associated set.
Claims18
A method comprising:
- dividing a multi-dimensional pattern of discrete features of different sizes to be written to a substrate into a plurality of contiguous regions;
- assigning a unique set of compensation values to each region;
- and
- using a write beam of a write system to write the features to the substrate responsive to said unique sets of compensation values so that all of the features having a common size in at least one region are written using the same compensation values from the associated unique set.
An apparatus comprising:
- a memory which stores a set of encoded data which provides a unique set of compensation values for each of a plurality of different contiguous regions of a multi-dimensional pattern of discrete features to be written to a substrate;
- and
- a write beam which writes the features of the multi-dimensional pattern to the substrate responsive to said set of encoded data in the memory, wherein at least identical regions are written to the substrate using the same portion of the encoded data set.
Dependencies are inferred from the claim text.