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Distributed VGA Display Technology

Author: ZhaoTianHong
Tutor: HuangZhanHua
School: Tianjin University
Course: Optical Engineering
Keywords: VGA DSP JPEG decoding Fast Ethernet TCP / IP
CLC: TP334.1
Type: Master's thesis
Year: 2008
Downloads: 128
Quote: 4
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Abstract


Distributed VGA display technology \It can not use the computer and the VGA display card , VGA image display and control , mainly can be applied to large supermarkets , railway stations , airports and other public places , advertising and message display , can also be installed on the factory floor operation information , used in the production process of the display, but also can be developed into a multimedia electronic calendars system used in daily life . Paper designs and implements the 1024 * 768 images ( XGA ) , 800 * 600 images (SVGA) and 640 * 480 images in three resolutions (VGA) image display , and completed DM9000A NIC driver and the TCP / IP protocol to write TCP / IP protocol is a high - speed real-time verification protocol , which enables remote communication can achieve a computer-controlled multiple embedded devices , each device exclusive IP and physical address can implement digital signal processing , network control , transmission data , video , and so on. The main work of this paper include : 1 , on the basis of analysis of the VGA display standard and signal requirements , the specific design of the distributed VGA display system . 2, to build the hardware structure of the distributed VGA display technology , real-time rapid display of VGA image and adjustable resolution . Design of a Programmable Logic Device (CPLD) VGA display timing . 3, using the Quick one-dimensional IDCT algorithm requires only 29 multiplications and 11 additions can be realized through four operations of the eight one-dimensional IDCT transform , using JPEG image decoding speed , thereby improving the system's real sex . 4 , the design of a distributed VGA display technology , embedded software and PC software . WINSOCK programming a the upper computer network control process . Large capacity SDRAM , FLASH data storage , DM9000A controller can achieve 100M high-speed duplex transmission .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Electronic digital computer (not a continuous role in computer ) > External device > Terminal equipment
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