Color Space Selection

Silicon Image, Inc.	iScan Pro User Manual

The iScan Pro can output video in one of two different color spaces. The first is the Red-Green-Blue (RGB) color space that is commonly used for projectors, displays and monitors that are designed to accept computer video output.

The second is Component Video, but is more accurately called YPbPr though you may hear it referred to as Y-Pr-Pb, YUV, Y-Cr-Cb or Y/B-Y/R-Y (read “Y, B minus Y, R minus Y”). This color space is commonly used for newer digital TV sets, displays and projectors that are designed for use with Digital TV (DTV) tuners.

You will need to determine which color space is used by your progressively scanned display and move the Color Space switch on the front panel of the iScan Pro to the appropriate position.

UPRGB

DOWN YPbPr

Typically, inputs on display devices that are labeled “Component Video”, “DTV” or “HDTV” are YPbPr whereas inputs that are labeled “Computer” or “VGA” are RGB. Once set up, this switch should not need to be changed unless you are changing display devices.

Synchronization Signals

All video devices require one or more synchronization signals that tell the device when to start a new line and/or a new field. For YPbPr devices, this sync information is embedded in the Y signal.

For RGB devices, there are a variety of ways that this sync information can be conveyed and the iScan Pro can support most of these. The iScan Pro generates separate H (horizontal) and V (vertical) sync signals in addition to the RGB outputs. This results in a total of five signals (RGB/HV). For many configurations, these five signals will be part of a single VGA-to-VGA output cable and there will be no need to worry about the indivi dual signals. For some devices you may need to connect all five of these signals to individual BNC or possibly RCA type connectors. See Table 1 below for more specific connection information.

Some display devices require that the two H and V sync signals be combined into a single “composite sync” signal, resulting in a total of 4 signals (RGB/S). Devices requiring composite sync typically accept the three video signals as well as the composite sync signal on BNC type connectors.

Other devices require that the composite sync signal be further combined with the RGB Green signal. This is referred to as “sync on green” and is typically connected to the device using 3 BNC connectors, though 3 RCAs may also be used.

If your output device falls into either of these last two categories – composite sync or sync on green

–the iScan Pro will need to be internally configured to output the appropriate type of sync signal. To do this you will need to follow the directions in Appendix A.

Progressive Scan Display Interface specifications

DVDO Progressive Scan Display Interface (PDI) is an advanced technology designed to enhance video quality and user experience in display systems. It serves as a bridge between source devices, like DVD players or gaming consoles, and output displays such as televisions and projectors. The main purpose of the PDI is to provide a better visual experience by minimizing motion artifacts, enhancing color accuracy, and improving overall image clarity.

One of the key features of DVDO PDI technology is its progressive scan capability. Unlike traditional interlaced scanning methods where alternate lines of an image are displayed in each frame, progressive scanning delivers the entire image at once. This results in smoother motion and sharper images, especially beneficial for fast-paced content like sports or action movies.

Another important characteristic of DVDO PDI is its upscaling ability. The interface can take lower resolution video sources and convert them into higher quality outputs, ensuring that older video content can still look impressive on today’s high-definition displays. This upscaling feature is critical for users who still want to enjoy classic films or legacy video games without compromising on picture quality.

The technology also incorporates sophisticated deinterlacing algorithms that intelligently analyze video signals. These algorithms help in reducing visual artifacts such as combing and blurring, commonly found in interlaced video formats. This enhancement is particularly useful for mixed video sources, allowing seamless switching between different content types without noticeable degradation in quality.

DVDO PDI is also designed with various connectivity options to ensure compatibility with a wide range of devices. High-definition multimedia interface (HDMI) compatibility allows for easy integration with modern displays, while additional outputs can cater to older systems, making it a versatile choice for multimedia setups.

Moreover, the user-friendly features of DVDO PDI include adjustable settings for color calibration, contrast enhancement, and image scaling, allowing users to customize their viewing experience. This adaptability makes it suitable for both home theater enthusiasts and casual viewers alike.

In conclusion, the DVDO Progressive Scan Display Interface stands out with its combination of progressive scanning, upscaling, intelligent deinterlacing, and extensive connectivity options. These characteristics work together to deliver an enhanced viewing experience, ensuring that users enjoy superior video quality regardless of the source material. As technology continues to evolve, DVDO remains at the forefront of display innovations, offering solutions that cater to the diverse needs of consumers.

Silicon Image, Inc.