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Fujitsu’s secret recipe

Fujitsu’s Display Innovations
Fujitsu’s secret recipe
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In 1993, Fujitsu’s most advanced digital image processing technology required four chips. In 1999, we launched the world’s first high-definition screen that featured a revised processor that required only three chips, improving response times and making it possible to use DVD players with Fujitsu plasma screens.

In 2001, Fujitsu responded to the spread of higher resolution video content and the promise of high-definition TV with its first AVM video processor. The first single chip, fully digital video processor for plasma displays, the AVM processor not only improved processing speed by moving to a single chip but also featured the debut of Fujitsu’s proprietary high definition content scaler. AVM offered plasma buyers the precision image scaling only found in dedicated, high-end video scalers. In 2002, an AVM equipped display was the first plasma screen to win an Emmy award from the National Academy of Television Arts and Sciences.

In 2005, Fuijitsu introduced the AVM II (Advanced Video Movement II) video processor, the result of fifteen years continuous development of video processing technologies. Without doubt, it is the secret formula behind the performance of the 50 series plasma range and Fujitsu’s flagship LCD projector - a next generation imaging engine that is perfectly in tune with the worldwide shift to digital TV broadcast and storage and the imminent launch of high-definition TV services.

AVM – Fujitsu’s Plasma Digital Video Processor
The Advanced Video Movement (AVM) digital video signal processor, a direct descendent of the world’s first plasma digital video processor, is the brains behind almost all of Fujitsu’s current plasma screen range.

Plasma monitors process the video signal using 4 core techniques:
1) Analogue to Digital conversion (as the units are digital in nature)
2) Interlace to progressive conversion (as in interlace line to progressive line conversion)
3) Scaling (to fit the incoming signal to the native pixel of the glass panel)
4) Colour space conversion (to adjust the Gamma to fit the characteristic of plasma panels (as opposed to the characteristics of a CRT)

AVM incorporates all of these core techniques in a single chip, so that the four processes can be performed simultaneously rather than sequentially. In turn this enables the AVM chip to perform a unique “look ahead 3 frames” function to see how the image is changing. This enables superior signal handling and a superior image..

It also contains a number of technologies that ensure that any picture input is best translated onto the screen. The High Definition Digital Multi-Conversion (HDDMC) system handles the optimisation of different inputs for display, including the use of different processing techniques for still or moving images. Adjust-to-Movement mode enhances natural movement by predicting the position of objects in future frames so that they don’t judder across the screen. Adjust-to-Film mode allows film frames to be faithfully reproduced by automatically detecting pull down cycles within video content. Automatic Phase Adjustment mode also enhances PC signals by automatically detecting and adjusting horizontal signals. Finally, Contour Emphasis Processing increases the detail of digital signal processing to optimise component video signals, such as High Definition TV and DVD.

AVM Plus
AVM Plus takes AVM to the next level with the addition of a second DCDi-based processor (Directional Correlation De-interlacing), which eliminates the jagged edges that can appear when standard interlaced video is viewed on progressive scan displays. Essentially, DCDi, by Faroudja, applies an improved technique to replace the missing lines of video from interlaced sourced material, which handles moving images and diagonal lines more precisely. AVM Plus also includes improvements to the way the main processor handles analogue pictures, reducing picture noise and blurring on analogue terrestrial broadcasts and VCR feeds.

Launched in 2005, the AVM-II digital video signal processor adds low brightness, multi-gradiation processing and other new digital control technologies to the unique features provided by AVM and AVM Plus. This next-generation, high-quality imaging engine is designed to bring the best out of new high-definition content while retaining its award-winning ability to reproduce standard TV, multimedia and DVD sources.

AVM-II includes a number of processing improvements that deliver further improved scaling and even crisper images. The new features include:

MPEG Noise Reduction Circuits include Mpeg noise reduction to minimise block noise, mosquito noise reduction to eliminate ‘ghost edges’, and de-interlacing circuits to eliminate jagged edges – all resulting in a smoother image

Image Adaptive Processing separates and processes on-screen text/graphics and video image simultaneously to ensure that both are displayed with optimal clarity

Natural Light Sensor automatically senses the ambient light level of the viewing room and digitally adjusts the screen brightness and contrast to achieve the optimal on-screen image

Natural Colour Tuning adjusts individual hues to produce more vivid expressions and images that appear more natural

AVM-II (Update)
For the launch of the 50 series panels Fujitsu has made a number of enhancements to the de-interlacing AVM-II circuits of the processor, specifically to ensure the best picture from interlaced 1080i HD content. With a number of the inital HDTV services broadcasting in 1080i, AVM-II is again perfectly in tune with the market.

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