Runco virtual high definition processor with aspect ratio control

QUICK SET-UP GUIDE

Overall Functional Description

The VHD-4402 ULTRA’s purpose is twofold. First, it provides aspect ratio control and can do so on either a WIDESCREEN or a standard 4:3 screen. Second, it pro- vides a clean, progressive signal to the projector.

The processing the VHD-4402 ULTRA uses is called SCALING. Scaling is simply a way of taking a signal, ‘digitizing’ it, then converting it to any of a number of resolu- tions. It is by manipulating the algorithms of the scaling process that we are able to not only produce properly-configured aspect ratios, but to provide the most effective scan rate for the projector it will be used with.

An INTERLACED signal is the type of signal that comes from all consumer sources (with the exception of DTV decoders and computers). DVD players, Laser Disc players, and VCRs are all examples of source equipment that have interlaced out- puts. An interlaced signal is simply described as this:

240 lines (odd)	240 lines (even)
First 1/60th of a second	Second 1/60th of a second

An NTSC picture is made of approximately 480 lines. Images are drawn 60 times a sec- ond, but in an interlaced system, only half the lines are drawn each ‘pass’. Therefore, it takes two ‘passes’ to actually complete the picture. On the first 1/60th of a second, all of the ‘ODD’ lines are drawn, then the ‘EVEN’ lines the next 1/60th of a second. This is also called ‘480i’, where 480 is the total number of lines of resolution, and ‘i’ means interlaced.

A PROGRESSIVE signal, however, draws all 480 lines each 1/60th of a second, not half and half like an interlaced signal. A ‘line doubler’, for example, outputs a 480-line progressive signal (also known as 480P). The line doubler takes the first field (odd lines), and stores them in memory, then takes the second field (even lines) and does the same. Then, all 480 are output at once, and then the same frame is repeated.

The VHD-4402 ULTRA starts off as a line doubler by ‘de-interlacing’ the signal. Then, the 480p signal is scaled to appropriate resolution, and then output to the pro- jector. It is Runco’s high-quality scaling process as well as its de-interlacing that pro- vides the clean, resolved image that you see from your projector. It is also how

the processor can provide aspect ratio control.

In the next chapter, the individual menu items will be described in detail. Overall, the VHD-4402 ULTRA has a number of useful functions aside from the scaling and de- interlacing described above. It has typical picture controls, including COLOR (satura- tion), TINT (hue), BRIGHTNESS (black level), SHARPNESS, CONTRAST (ratio of white to black) and other picture enhancements such as LUMA and CHROMA ENHANCE.

VHD-4402, virtual high definition processor with aspect ratio control specifications

The Runco VHD-4402 Virtual High Definition (VHD) Processor is a cutting-edge solution designed for home theaters seeking exceptional video quality and flexibility in aspect ratio control. Known for its advanced processing capabilities, the VHD-4402 is engineered to enhance the viewing experience by adapting content to various display formats while maintaining pristine image fidelity.

One of the standout features of the VHD-4402 is its capability for aspect ratio control, allowing users to easily manipulate their viewing preferences. The processor can automatically detect the source content's aspect ratio, whether it be 4:3, 16:9, or other formats, and adjust the output accordingly. This ensures that viewers can enjoy their favorite films and shows without the typical distortions associated with improper scaling. The result is a flawless and immersive cinematic experience, whether on a traditional screen or a modern ultra-widescreen display.

The VHD-4402 employs proprietary technologies to elevate image quality. It features advanced deinterlacing processes to convert interlaced video sources into progressive formats, significantly enhancing clarity and reducing artifacts. Additionally, the processor utilizes sophisticated scaling algorithms, allowing for smooth upscaling of standard definition and high definition content to match the resolution of high-end projectors and displays.

Another notable characteristic of the VHD-4402 is its extensive connectivity options. Equipped with multiple HDMI inputs, the processor can accommodate numerous devices, such as Blu-ray players, gaming consoles, and streaming devices, making it an ideal hub for a complete home theater system. Furthermore, the device is compatible with various video formats, ensuring versatility in handling different source materials.

The VHD-4402 also boasts customizable settings that enable users to fine-tune their viewing experience. Users can adjust color profiles, contrast levels, and sharpness to match their individual preferences or the specific characteristics of their display. This level of personalization ensures that every viewing experience can be tailored to achieve optimal results.

In summary, the Runco VHD-4402 Virtual High Definition Processor stands as a powerful tool for home theater enthusiasts. With its focus on aspect ratio control, superior image processing, extensive connectivity options, and customizable settings, it promises to deliver an unparalleled viewing experience that meets the demands of modern consumers. As a centerpiece in any home theater setup, the VHD-4402 redefines video quality, making every screen session truly memorable.