Patent ID: 6559896
Filing Date: 2003-05-06
Classification: G09G,H04N

Abstract:
A method of controlling a memory comprising the steps:measuring write and read speeds of writing image data into and reading image data from the memory; predicting, prior to writing a new field of image data, whether a crossing, where either a write action overtakes a read action or a read action overtakes a write action, will occur during the writing of the new field of image data, said predicting step using said measured write and read speeds; writing the new field of image data into the memory starting from an initial position in the memory corresponding to an initial position from which a previous field of image data was written into the memory if no crossing is predicted; and writing the new field of image data into the memory starting from an initial position following an end position of the previous field of image data which was written into the memory if a crossing is predicted, wherein the memory has a size which is larger than a size needed for one field but less than a size needed for two fields of the image data at a largest read-out size.