RGBLink DXP V1616 User Manual - Manual (Page 15)

1. Brief Introduction
Terms and Definitions
DXP V1616 User Manual 15
HDMI specification has gone through several revisions.
 “HDSDI”: The high-definition version of SDI specified in
SMPTE-292M. This signal standard transmits audio and video
with 10 bit depth and 4:2:2 color quantization over a single
coaxial cable with a data rate of 1.485 Gbit/second. Multiple
video resolutions exist including progressive 1280x720 and
interlaced 1920x1080 resolutions. Up to 32 audio signals are
carried in the ancillary data.
 “JPEG” (Joint photographic Expects Group): Commonly
used method of lost compression for photographic images
using a discreet cosine transfer function. The degree of
compression can be adjusted, allowing a selectable tradeoff
between storage size and image quality. JPEG typically
achieves 10:1 compression with little perceptible loss in image
quality. Produces blocking artifacts.
 “MPEG”: Motion Picture Expect Group. A standard committee
under the auspices of the International Standards
Organization working on algorithm standards that allow digital
compression, storage and transmission of moving image
information such as motion video, CD-quality audio, and
control data at CD-ROM bandwidth. The MPEG algorithm
provides inter-frame compression of video images and can
have an effective compression rate of 100:1 to 200:1.
 “NTSC”: The color video standard used in North America and
some other parts of the world created by the National
Television Standards Committee in the 1950s. A color signal
must be compatible with black-and-white TV sets. NTSC
utilizes an interlaced video signals, 525 lines of resolution with
a refresh rate of 60 fields per second (60 Hz). Each frame is
comprised of two fields of 262.5 lines each, running at an
effective rate of 30 frames per second.
 “PAL”: Phase Alternate Line. A television standard in which the
phase of the color carrier is alternated from line to line. It takes
four full pictures (8 fields) for the color-to-horizontal phase
relationship to return to the reference point. This alternation
helps cancel out phase errors. For this reason, the hue control
is not needed on a PAL TV set. PAL, in many transmission
forms, is widely used in Western Europe, Australia, Africa, the
Middle East, and Micronesia. PAL uses 625-line, 50-filed (25
fps) composite color transmission system.
 “Operator”: Refers to the person who uses the system.
 “PIP”: Picture-in-Picture. A small picture within a larger picture
created by scaling down one of the images to make it smaller.
Each picture requires a separate video source such as a
camera, VCR, or computer. Other forms of PIP displays include
Picture-by-Picture (PBP) and Picture-with-Picture (PWP),
which are commonly used with 16:9 aspect display devices.
PBP and PWP image formats require a separate scaler for each
video window.
 “Polarity”: The positive and negative orientation of a signal.