Memory access system and method for efficiently utilizing memory bandwidth
AssigneesHimax Media Solutions, Inc., Himax Technologies Limited
InventorsSheng-Chun Niu, Ying-Ru Chen
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Abstract
A memory access system and method for efficiently utilizing memory bandwidth is disclosed. A data arrangement unit arranges video data into at least a primary block and a supplemental block, which are then stored in a memory device. The video data are arranged such that the video data of the primary block stored in the memory device can be sequentially read by a device, thereby increasing efficiency in memory bandwidth usage and memory data access.
Claims20
A memory access system for efficiently utilizing memory bandwidth, comprising:
- a data arrangement unit for arranging video data into at least a primary block and a supplemental block such that the primary block includes luma components of all pixels and only chrominance components of non-even number pixels, and the supplemental block includes only chrominance components of even number pixels;
- and
- a memory device in which the arranged video data of the primary block and the supplemental block are respectively and separately stored;
- wherein the video data are specifically arranged such that the arranged video data stored in the memory device are sequentially and continuously read by a device in an order of the pixels.
A memory access method for efficiently utilizing memory bandwidth, comprising:
- arranging video data into at least a primary block and a supplemental block such that the primary block includes luma components of all pixels and only chrominance components of non-even number pixels, and the supplemental block includes only chrominance components of even number pixels;
- and
- storing the arranged video data of the primary block and the supplemental block respectively and separately in a memory device;
- wherein the video data are specifically arranged such that the arranged video data stored in the memory device are sequentially and continuously read by a device in an order of the pixels.
Dependencies are inferred from the claim text.