Wednesday, April 22, 2009

Audio-visual schemes for the automotive likeness processor

By by Professional editor from led automotive bulb.

Today's very admired in the automotive enjoyable recital procedure, on advancing the scope for of video playback, motor vehicle enjoyable recital procedure is the solitary audio from the conventional procedure into a video, customer manual and integrated navigation system. Video show clearly, for instance the amount assortment from high-end 3-inch to 7 inch range. Shows that the content of knowledge usually embraces analog (such as computer disc competitor or digital broadcasting and television) and digital knowledge (such as multimedia customer interface and fascinating wallpaper). Figure 1 presenting a motor vehicle audio system. Solomon Systech Image Processor chip-SSD1922 aspects to get concurrently 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 preserved in the SD interface SD / MMC card. SD small discern can be read from the JPEG record, after decoding interface through the liquefied crystal show clearly to the LCD video screen

JPEG encoder block from video source (camera or DVD input) to obtain images. Ability to deal with its hardware, you can quickly display any JPEG image. SSD1922 supports dynamic JPEG format. SD memory interface will be saved in JPEG picture transmission to the SD card, micro-controller can also save any other data required. Moreover, SSD1922 operation for a variety of menus to provide two-dimensional graphics acceleration functions, such as virtual display, image display, show coverage, hardware cursor display, line draw, block transfer bit raster operation, color fill, color expansion and so on. Built-in 256KB SRAM support animation and JPEG graphics. Supporting one of the largest 640 480 delta arrangement (200K) and 480 RGB 272 stripe pixel arrangement (255K). Video input and the display resolution does not always correspond to 1:1. Adjust the size with SSD1922 features a built-in image storage to the size of SRAM scaling before. Therefore, different resolution, NTSC / PAL video source can be displayed on the LCD screen.

In short, Solomon Systech's SSD1922 is a suitable audio-visual products in the application of a motor vehicle of the chip, which features valuable and easy application design will allow us to accelerate the introduction of new products. - 20760

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