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Arbitration device and method thereof

An arbitration method and category of technology, applied in televisions, instruments, electrical digital data processing, etc., can solve uneconomical problems, increase circuit area and cost, etc.

Active Publication Date: 2009-08-26
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, the known arbitration method will greatly increase the area and cost of the circuit, and is a very uneconomical solution, so an effective arbitration mechanism is urgently needed to solve the above problems

Method used

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  • Arbitration device and method thereof
  • Arbitration device and method thereof
  • Arbitration device and method thereof

Examples

Experimental program
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Embodiment Construction

[0048] see figure 1 and image 3 , the preferred embodiment of the arbitration device 16 of the present invention is suitable for a peripheral device 1 , and the peripheral device 1 is coupled with a storage unit 5 and a screen 6 . In addition, the storage unit 5 can also be coupled to other peripheral devices 2 , 3 and 4 . The storage unit 5 can be a DDR, but not limited thereto. And the peripheral device 1 can be a multimedia chip, and the other peripheral devices 2 , 3 and 4 can be MPEG decoders, video decoders or optical disk drives, and are not limited thereto. The other peripheral devices 2 , 3 and 4 include an access controller 21 , 31 and 41 respectively.

[0049] In addition to the arbitration device 16, the peripheral device 1 also includes a display information unit 15, a plurality of circuits (in this embodiment, processing units 11-14 (for example: the processing unit 11 is used to process subtitles, and the processing unit 12 These are for processing cursors,...

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PUM

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Abstract

The invention discloses an arbitration device, which is suitable to receive a plurality of storage requests sent by a plurality of circuits and select one from the circuits for storage. The device comprises a sequencer and an arbitrator, wherein the sequencer determines a storage priority sequence according to a frame position signal, the storage priority sequence comprises a primary storage class and a secondary storage class, the frame position signal indicates the position configuration relations of a plurality of pattern layers of a display frame, the data of the pattern layers are generated by the plurality of circuits, and the arbitrator selects one from the circuits for storage according to the storage priority sequence and at least one storage request. In addition, an arbitration method is also disclosed.

Description

technical field [0001] The present invention relates to an arbitration device and its method, in particular to an arbitration device with dynamic priority configuration and its method. Background technique [0002] With the development of video systems, many layers are usually blended on one frame, such as parent-child frames, On Screen Display (OSD), subtitles, cursors, background basemaps, etc. Wait. In a real-time playback system, all layer data to be presented in a frame are captured before the frame is displayed, and processed appropriately, and then stacked in sequence. Since the data of each layer is quite large, it is very uneconomical to pre-store each layer by building a super-large-capacity register in the system. In order to solve this problem, once the layer data to be presented is captured, it is immediately processed and then played in real time, that is, during the playback process, the simultaneous parallel method of capturing data while processing and pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/20H04N5/445
Inventor 陈一舟
Owner REALTEK SEMICON CORP
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