Memory access method
AssigneeMediatek Inc.
InventorChi-Cheng Ju
Life of this patent
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Abstract
The invention provides a memory access method for overlapping partial boundary data in order to reduce or eliminate cross-page penalties when reading data. The method includes the step of a determining step to determine the maximum size of prediction blocks; a storing step to overlap partial boundary data from one side page of a page boundary into the other side page of the page boundary; and a reading step to read a prediction block from the page having all the data of the prediction block when the prediction block is at the page boundaries with overlapping data to eliminate cross-page penalties so as to increase the reading speed. Hence, the invention utilizes an overlapping method to eliminate cross-page penalties when reading the block data so as to increase the memory bandwidth as well as the reading speed.
Claims20
A memory access method for accessing reference pictures from memory by blocks, the method comprising the following steps:
- a determining step for determining the maximum size of prediction blocks;
- a storing step for overlapping partial boundary data on page boundaries;
- and
- a reading step for reading a prediction block from the page having all the data of the prediction block when the prediction block is at the page boundaries with overlapping data to eliminate cross-page penalties.
A memory storage method for storing reference pictures into memory by blocks, the memory storage method comprising the following steps:
- a determining step for determining the maximum size of prediction blocks;
- and
- a storing step for overlapping partial boundary data on page boundaries.
Dependencies are inferred from the claim text.