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Display buffer method and device for image

A buffer method and buffer device technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of bandwidth consumption and high SOC cost, and achieve the effect of reducing costs and avoiding bandwidth consumption

Active Publication Date: 2018-07-06
BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, the present invention is committed to providing an image display buffer method and device to simultaneously solve the problems of bandwidth consumption and high SOC cost caused by off-chip DDR in the process of display buffering

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  • Display buffer method and device for image

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] First, the following concepts are given.

[0023] A data block refers to a block-shaped area composed of several adjacent pixels in a frame of image. The data block is the basic unit of the image compression process and is used for data transmission between the memory and the input and output devices. Each row of pixels in a data block is called a data row.

[0024] A strip refers to a horizontal strip interval composed of any row of data bloc...

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Abstract

The invention provides a display buffer method and device for an image. The problems of bandwidth consumption of an off-chip DDR and high SOC cost in the display buffer process can be solved at the same time. The display buffer method for the image comprises the steps that according to a preset address generation method, m*n read-write addresses corresponding to m*n data rows in each band among one or more bands are generated; the m*n data rows are written into storage units which the m*n read-write addresses point to according to a predetermined sequence, and the m*n read-write addresses areused as indexes for reading the m*n data rows in the m*n storage units according to scanning rows of each band among one or more bands.

Description

technical field [0001] The invention relates to the technical field of image display buffering, in particular to an image display buffering method and an image display buffering device. Background technique [0002] In SOC (System on Chip, system-on-chip), it is usually necessary to output the image data stored in the SOC memory to an external display device. However, since the image data stored in the SOC memory is a compressed data block, the display device generally It is a progressive scan display of a frame of image, so it is necessary to convert the image data stored in the memory into scan lines. This process is called the display buffer of the image. [0003] figure 1 Shown is a schematic diagram of a display buffering process in the prior art. from figure 1 It can be seen that the display buffering process includes: SOC10 decompresses the compressed image in the memory by data block through internal calculation, and then writes the decompressed data block to the ...

Claims

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Application Information

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IPC IPC(8): G09G5/36
CPCG09G5/36
Inventor 黎明夏昌盛张韵东
Owner BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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