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 RKR
Video computer-based DVD Players.
HI-REZ PROJECTIONS presently offers three Models of RKR Video's DVD
Players.Each utilizes a new motherboard that incorporates the functions
of the original 3-D Fusion Chip set. They are unique among computer-based
MPEG-2 DVD playback systems in their ability to extract the picture
from the DVD in progressive scan mode. To date, all other "progressive-scan"
stand-alone and computer based DVD players actually read the DVD in
...
Basic
information for planning your hometheater.
This 4 page sheet covers: The room, The Screen, The projector, Resolution,
LCD vs. CRT projectors, HDTV / DTV, Scan Lines & Doublers Computers
and Video Games.
Aspect
ratios and Thanks for the memories.
Most films are shown in the theaters in a widescreen aspect ratio with
a width to height ratio of 1.85:1 or 2.35:1. We are used to viewing
them at home in either pan-and-scan or letterbox form. Pan-and-scan
presents a full height image on our 1.33:1 (more typically referred
to as 4:3) video screen by cutting off the ends of the picture. The
pan-and-scan designation refers to the process ...
The
Hometheater Room.
If you have decided to install a real home theater, you can not think
of it as just a bigger TV. You will be projecting the picture onto a
screen and the room will have to emulate the darkness of a movie theater.
A theater screen is white, not dark gray like the glass of a conventional
or rear projection TV...
Scan
Rates, Resolution, and HDTV.
Every video image is created by a small dot of light that draws a single
line from left to right, then snaps back to the left edge and draws
another line just below that one and so on from the top to the bottom
of the screen. NTSC television images are vertically interlaced, drawing
every other line in one sweep down the screen (field-1), then filling
in the image with every other line the next time (field-2)...
TV
cable hum eliminator.
Television cable systems often induce hum in the audio of attached stereo
systems, and sometimes in the video display as well. The source of the
hum is a ground loop created when the TV cable is installed with its
shield grounded outside the house and the audio and video equipment
is grounded to the AC outlet ground in the room. To eliminate the hum,
you must insert a high impedance at 60 Hz. between the cable, its shield,
and the audio-video system which includes the cable tuner. The lowest
signal frequency, for which the impedance...
What
to look for when evaluating and tesing video displays.
Boston Audio Society 9/15/96 by Joel Cohen
Flaws or misadjustments are anything that makes TV look like TV instead
of film, which is as close as we can come to reality. The first thing
that comes to mind is lower resolution, but that turns out to be the
least significant difference. If you have seen video projected by a
high-quality graphics projector with a good line doubler or quadrupler,
you were probably not disappointed by a lack of...
Categories
and Chronology Scan Rates Line Doubling.
CRT video projectors have been in use since the early 1970s. One of
the first was the Advent Videobeam designed by Henry Kloss most recently
of Cambridge Sound Works. This classic projector Model 1000 and 1000A
looked like a giant Norelco shaver, with the three tubes (Red, Green,
& Blue) in a triangular array...
The
Electrohome ECP-4101 compared to the new Sony VPH-D50Q.
The ECP-4101 is a commercial, graphics-grade video projector that originally
sold for $22,000. It has most features of the VPH-D50Q plus several
advantages including the ACON automatic convergence system. (Originally
a $2,000 option). The Model ECP-4101 is available in limited quantity
as a factory rebuilt with an extended 2-year warrantee...
Tips On Using the: Marantz RC2000 learning remote control.
The purpose of this article is to give you some information and hints
on using the "Remote Control of the Gods", and to answer some
Frequently Asked Questions (FAQ). The Marantz RC2000 is a learning remote
control designed to take the place of all of your existing remote controls.
It is pre-programmed with Philips' RC-5 commands for Marantz A/V equipment
and RCA DSS (Digital Satellite System), and can be re-programmed with
commands from most other infrared (IR) remote controls...
SETTING COLOR TEMPERATURE.
By now everyone should know that video displays should be calibrated
for a 6500-degree color temperature. Some of the latest video projectors
have color temperature control, but it is not always accurate. And,
most projectors do not have direct color temperature control. Color
temperature is a way of defining the spectrum of light emitted by a
source. The hotter...
ASPECT RATIOS AND ANAMORPHIC SOURCE MATERIAL.
Setting a display up for various aspect ratios or formats sounds like
a complex task. But it actually consists of a simple adjustment of the
vertical size or height control. The width remains constant. Right now,
except for DVD, there is no need to change the aspect ratio, since every
other video source and program is presented in the standard 4:3 format.
Letterboxed films simply black out a portion of the top and bottom of
the screen. In this way, all material is compatible with standard, direct-view,
TV sets that are not easily adjustable...
VIDEO PROJECTOR BRIGHTNESS - CRTS VS. LCD.
CRT (Cathode-Ray-Tube) projectors have two brightness specs - ANSI and
Peak. LCD projectors have one. The difference is due to the projection
method. In a CRT, light is created by a beam of current hitting the
phosphor on the inside of its face. The primary limitation of brightness
in a CRT is its maximum beam current. If only 10% of the screen needs
to be at maximum brightness, most of the beam current can be concentrated
on the corresponding 10% of the CRT face, providing a high peak brightness
on the screen. If the whole screen needs to be white (a rare occurrence)
the beam current must be spread over the entire face of the CRT which
...
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