Patent ID: 7463175
Filing Date: 2008-12-09
Classification: H03M

Abstract:
1. A method of converting data wherein dynamic elements are matched by repeatedly selecting a portion of unit elements among N unit elements according to data and a circulation direction, wherein N is a positive integer, the method comprising: determining an existence of a tone by comparing a present pointer position with a previous pointer position and by comparing present data with previous data; changing at least one of the present pointer position and the circulation direction, based on the existence of the tone; storing the present pointer position and the present data when the present pointer position is not changed and storing the changed pointer position and the present data when the present pointer position is changed; sequentially selecting unit elements by the present data from the stored pointer position in the circulation direction when the circulation direction is not changed and sequentially selecting unit elements by the present data from the stored pointer position in the changed circulation direction when the circulation direction is changed; and moving the present pointer position by the present data in the circulation direction when the circulation direction is not changed and moving the present pointer position by the present data in the changed circulation direction when the circulation direction is changed.