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Multimedia processing platform chip

A technology for processing platforms and multimedia, applied in the multimedia field, can solve the problems of difficulty in meeting the requirements of media processing capabilities, high difficulty in platform productization, weak functions, etc., to achieve the effects of good product integrity, easy implementation, and reduced energy consumption

Inactive Publication Date: 2008-08-27
VIMICRO CORP
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  • Summary
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AI Technical Summary

Problems solved by technology

[0006] As shown in the above table, the OMAP and BLACKFIN platforms have strong functions, but their prices are too high, and the platform productization is difficult; while the ACTION and ROCKCHIP solutions are low in price, have good platform integrity, and are easy to productize, but their functions are weak. Difficult to meet the market's growing demand for media processing capabilities

Method used

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Embodiment Construction

[0067] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0068] The present invention provides a multimedia processing platform chip, which forms a multimedia processing system together with a power supply chip and SDRAM. In order to achieve the purpose of saving power consumption, such as figure 1 As shown, the chip is divided into three power domains: RTC (real-time clock chip) power domain, PMU (power management unit) power domain and SHUT_OFF (shutdown) power domain; according to different power supply requirements, each functional module is divided into To different power domains, and only supply power to the corresponding power domain when needed, so that the power consumption of this platform is low.

[0069] Each power domain of the multimedia processing platform chip is connected to a power chip, and the power chip provides working power.

[0070] The RTC power domain is used to pr...

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Abstract

The invention provides a multimedia processing platform chip comprising a RTC power domain providing a real time clock, power on time and timer interruption; a SHUT_OFF power domain used for coding / decoding process to multimedia message and a PMU power domain used for controlling the SHUT_OFF power domain to switch among the three following modes: normal mode, sleep mode and shut down and controlling the power supply of a power supply chip to each power domain, namely supplying power to the RTC power domain all the time, supplying power to the PMU power domain in the normal mode and the sleep mode and supplying power to the SHUT_OFF power domain in the normal mode. The multimedia processing platform chip can reduce the energy consumption of the multimedia processing platform chip, has excellent production integrality and small DIE area, and also can lower the encapsulation cost. The multimedia processing platform chip can ultimately realize the whole system only using the own chip with a power supply chip and an SDRAM, which is easy to realize. The multimedia processing platform chip has strong process function and lower cost.

Description

technical field [0001] The invention relates to the field of multimedia, in particular to a multimedia processing platform chip. Background technique [0002] We are in an information age, and media processing in information processing is the closest to people's lives, and it greatly changes and enriches people's lives. MP3 / MP4 / MP5 / PMP and multimedia mobile phones in our life are such media processing products. Many multimedia products are supported by many multimedia processing platforms, such as TI's OMAP platform, ADI's BLACKFIN, ACTION's 21XX series, Rockchip's 26XX, 27XX series. [0003] These multimedia processing platforms have different functions, completeness of the platform, difficulty and price of platform productization. The comparison of each platform is shown in the table below: [0004] Table 1. Comparison of multimedia processing platforms [0005] main platform OMAP BLACK FIN action ...

Claims

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Application Information

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IPC IPC(8): G06F1/32G06F13/16H04N7/24
CPCY02B60/1228Y02B60/1235Y02D10/00
Inventor 杨作兴李国新
Owner VIMICRO CORP
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