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Inlaid hard-disc machine and TV broadcasting control mode

A broadcast control and embedded technology, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of susceptibility to various virus systems, increase production costs, and system instability, and achieve the reduction of hardware structure. The effects of globalization, production cost reduction, and broad market space

Inactive Publication Date: 2005-02-16
安徽现代电视技术有限公司
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AI Technical Summary

Problems solved by technology

However, the drawbacks of this technique are also obvious
First of all, because the PC itself is not designed for processing audio data, the numerous hardware resources and powerful operating system functions of the PC are not available for the hard disk drive, and these unusable resources and functions are not only It is only a waste, increases production costs, and more importantly, causes system instability
Secondly, because the PC system is a very fragile system, it is easy to be infected with various viruses and cause various problems or even collapse of the entire system

Method used

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  • Inlaid hard-disc machine and TV broadcasting control mode
  • Inlaid hard-disc machine and TV broadcasting control mode

Examples

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Embodiment Construction

[0025] see figure 1 For video and audio decoding, a microprocessor with an embedded MPEG decoder is used. This microprocessor is the final processing core of video and audio data and various control commands. The operating system and various processing programs of control commands are solidified with Flash memory, and RAM memory It is a necessary memory for running the operating system and control command processing program, and it is also a buffer memory for video and audio data and display data. NET is a network interface for receiving external video and audio data, and RS232 is an interactive interface for external broadcast control commands.

[0026] Its working principle: After the system is powered on and started, the operating system Linux and application programs solidified in Flash are transferred to RAM to run, Linux detects the RS233 serial communication port, receives control commands from external devices, and delivers the received commands to the operating system ...

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Abstract

The present invention relates to an embedded hard-disk machine and its TV broadcasting control mode. It is characterized by decoding according to video-voice frequency; adopting microprocessor with imbeded MPEG decoder, using micrprocess or as processing core of video-voice frequency data and all the control commands, setting flash memory for soliifying operating system and controlling and commanding all the processing programs, setting RAM memory for running operating system and controlling-commanding processing program and using it as video-voice frequency data and display data buffer memory, setting network interface NET for receiving external video-voice frequency data and setting interactive interface RS232 of external broadcasting, control command. Said invention can be used as special TV broadcasting machine, its work is stable and reliable, and its production cost is low.

Description

Technical field: [0001] The utility model relates to computer radio and television broadcasting technology. Background technique: [0002] With the continuous development and improvement of image digitization technology, using hard drives instead of traditional video recorders for TV broadcasting has become a hot spot in the broadcasting industry, and more and more users use hard drives in TV broadcasting. At present, the hard disk drives produced by various manufacturers at home and abroad generally adopt the technology of increasing the capacity of hard disks with PCs plus video and audio processing boards. The advantage of this technology is that it can make full use of the powerful software system and numerous hardware resources of the PC, the system development cycle is short, the development cost is relatively low, and the realization of the whole system is relatively simple. However, the drawbacks of this technique are also obvious. First of all, because the PC itse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/00G11B20/10
Inventor 姜万勐徐炼红
Owner 安徽现代电视技术有限公司
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