Quadrant tech C-1.2D manual CineMaster User’s Guide

Models: C-1.2D

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Resolution – In video terms, resolution is the relative density of information that can be displayed, expressed in terms of the total number of horizontal and vertical pixels. The higher the pixel count, the higher the resolution and the greater the amount of detail that is displayable. A display that is 1024×768 has 1024 pixels per line and 768 lines per frame. Together with Color Depth, it defines the video mode.

S-VideoA method for encoding video, or for transferring it from one device to another (such as from CineMaster to an S-video monitor), which achieves a significant improvement in quality over the standard composite video encoding method by preserving separate chrominance and luminance signals. S-Video is sometimes referred to as component video. Like Composite video, S-Video is encoded according to one of the video standards (NTSC, PAL, or SECAM).

Sync – The portion of the video signal that indicates to a monitor that it is at the end of a line or the end of a field or frame. When a sync pulse is detected, the monitor starts a trace at the beginning of the next line, or returns to the top of the screen. This signal is transferred to the monitor either as part of the video (encoded in the Y component of S-video, or mixed with all of the video signal components for composite video), or it is carried as separate horizontal sync (HS) and vertical sync (VS), such as is the case for a VGA monitor. As resolution and color depth increase, the frequencies of the horizontal and vertical sync pulses also increase.

VideoInlay – A new technique for displaying live video on a VGA display by sending the data over the PCI bus. This doesn’t require a direct connection to the VGA card and provides greater flexibility in the choice of VGA card used. The digital video is scaled and converted (in hardware) to the computer’s native RGB format (if needed), and the converted video is moved from the CineMaster card directly to the graphics card using advanced PCI Bus Mastering Burst DMA (Direct Memory Access). This technique bypasses the host processor to move video data as quickly as possible, leaving the computer free to perform other processing tasks.

Y/C – Abbreviation for Luminance and Chrominance, respectively; the two- channel video signal standard employed by so-called "Super" or S-video (S-VHS, Hi-8) equipment. The luminance channel carries information on the relative brightness levels carried in the video frame. The chrominance channel carries information describing the actual color content.

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User’s Guide

Page 57
Image 57
Quadrant tech C-1.2D manual CineMaster User’s Guide