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Sunday, April 19, 2009

Audio-visual procedures for the automotive photograph processor

By Zou

Today's very popular in the automotive entertainment system, on increasing the capacity of video playback, car entertainment system is the single audio from the traditional system into a video, user manual and integrated navigation system. Video display, such as the size range from high-end 3-inch to 7 inch range. Shows that the content of information typically includes analog (such as DVD player or digital radio and television) and digital information (such as multimedia user interface and interesting wallpaper). Figure 1 showing a car audio system. Solomon Systech Image Processor chip-SSD1922 features to meet these needs.

Video and likeness content can be processed and SSD1922 interface through digital computer display at Delta or band of colour kind TFT display. If the video source to rendezvous BT656/601, schemes conceive would be a decrease of the video decoder and more easy.

JPEG images can be stored in the SD interface SD / MMC card. SD card can be read from the JPEG file, after decoding interface through the liquid crystal display to the LCD screen

JPEG encoder impede from video source (camera or storage disc input) to get images. Ability to deal with its hardware, you can rapidly brandish any JPEG image. SSD1922 carries dynamic JPEG format. SD recollection interface will be kept in JPEG image transmission to the SD business card, micro-controller can furthermore save any other facts and numbers required. Moreover, SSD1922 procedure for a kind of meal lists to supply two-dimensional graphics acceleration purposes, for example virtual brandish, likeness brandish, display treatment, hardware cursor brandish, line draw, impede move bit raster procedure, hue load up, hue expansion and so on. Built-in 256KB SRAM support animation and JPEG graphics. Supporting one of the biggest 640 480 delta placement (200K) and 480 RGB 272 band of colour pixel placement (255K). Video input and the brandish tenacity does not habitually correspond to 1:1. Adjust the dimensions with SSD1922 characteristics a built-in likeness storage to the dimensions of SRAM climbing before. Therefore, distinct tenacity, NTSC / PAL video source can be brandished on the LCD screen.

In short, Solomon Systech's SSD1922 is a appropriate audio-visual yield in the request for paid job of a drive vehicle of the piece, which aspects expensive and not hard request for paid job create will sanction us to accelerate the introduction of new products. - 18418

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