Compensation method of rotation data page of HDDS and data page format thereof

摘要

The present invention provides a holographic digital data recording data page rotation correction method applied to them, and the data of the playback device relates to a page format, can know the rotation amount of the data page alone without being both an input of an electrical signal by a data page that is output from the CCD imaging element for inserting the rotation sensing mark on one side of the data page that is written to the graphics of the storage medium The data page is located on the rotation correction method and data format to be applied to this page of the holographic digital data recording and reproducing apparatus. ; rotation of the holographic data page and the digital data recording and reproducing apparatus of the present invention, the correction method and this data page format to be applied is at least three-column as the column of the rotation sensing mark for the pixels of the corresponding electric signal to the rapid temperature change in the contrast of the different imaging elements are arranged to be read before the data page column of the pixel data sequence compensation processing performed by the image of the output to the CCD imaging element and the holographic digital data recording and reproducing apparatus comprising an image processing section for compensating the image compensation process according to the rotation degree of the data page identified receiving the electrical signal and, (a) step of receiving the electrical signal of the data page that contains the mark for detecting the rotation; (B) determining a mark for detecting the rotation; (C) when the electrical signal based on the check result of columns preset in step (b) is repeated until the end in a predetermined pattern, and determines that the data page is not rotating, the electrical signal is set in advance based on the column is not repeated in the predetermined pattern that is, if the data page is for storing a line of pixels and the predetermined direction of rotation to repeat the pattern is not determined that the relative rotation phase line, and (d) step (c) is determined that the pixel data in the absence of rotation of the reading the sequence, if there is a rotation comprises a step to read the pixel data in accordance with a predetermined rule.