DMT BMV-4, Руководство пользователя

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1. Brief Introduction
Terms and Definitions
BMV-4 User Manual 19
normally is seen when switching between sources.
 “SMPTE”:
Society of Motion Picture and Television Engineers. A
global organization, based in the United States that sets standards for
base band visual communications. This includes film as well as video
and television standards.
 “S-video”: A composite video signal separated into the luma (“Y” is
for luma, or black and white information; brightness) and the chroma
(“C” is an abbreviation for chroma, or color information).
 “Sync”:
Synchronization. In video, sync is a means of controlling the
timing of an event with respect to other events. This is accomplished
with timing pulses to insure that each step in a process occurs at the
correct time. For example, horizontal sync determines exactly when to
begin each horizontal scan line. Vertical sync determines when the
image is to be refreshed to start a new field or frame. There are many
other types o
f sync in video system.(Also known as “sync signal” or
“sync pulse.”)
 “TCP/IP”:
Transmission Control Protocol/Internet Protocol. The
communication protocol of the Internet. Computers and devices with
direct access to the Internet are provided with a copy of the TCP/IP
program to allow them to send and receive information in an
understandable form.
 “USB”:
Universal Serial Bus. USB was developed by seven PC and
telecom industry leaders (Compaq, DEC, IBM, Intel, Microsoft, NEC,
and Northern Telecom). The goal was easy plug-and-play expansion
outside the box, requiring no additional circuit cards. Up to 127
external computer devices may be added through a USB hub, which
may be conveniently located in a keyboard or monitor. USB devices
can be attached or detached without removing computer power. The
number of devices being designed for USB continues to grow, from
keyboards, mice, and printers to scanners, digital cameras, and ZIP
drives.
 “VESA”:
Video Electronics Standards Association. A nonprofit
number organization dedicated to facilitating and promoting personal
computer graphics through improved standards for the benefit of the
end-user. www.vesa.org.
 “VGA”:
Video Graphics Array. Introduced by IBM in 1987, VGA is an