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E-32
HDCP
High-bandwidth Digital Content Protection system. HDCP is
designed to protect the video transmission between a DVI
transmitter and a display device.
Aspect
This refers to the length-to-width ratio of an image.
Ceiling mount bracket
This is the mounting hardware used to hand this unit from the
ceiling. Two types of bracket are available, for high and low
ceilings. Ceiling mount brackets are sold separately.
Key stone
If the unit is used at an angle to the screen the projected image
will be distorted in a trapezoid fashion. Keystone is used to
electronically correct this distortion.
Letter box
This is a method used to convert the content of a film in
landscape orientation to a 4:3 signal. It is possible to watch a
landscape image without trimming by adding a black bar to the
top and bottom of the screen, however this sacrifices vertical
resolution to some extent.
Squeeze
This method compresses a film image horizontally to an aspect
ratio of 4:3 when recording on a video medium. The squeezed
image must pass through a de-squeezing circuit in order to be
projected in it’s original form.
Smart Zoom
Smart zoom expands the left and right sides of a 4:3 image
without altering the center, when it is necessary to project a 4:3
image to a wide screen format. This creates some distortion at
both edges.
Vista size
A standard film size. The aspect ratio is 1.85:1 in North
America and 1.66:1 in Europe.
Cinema scope size
The widest film format in 70mm film. The aspect ratio is
2.35:1.
Color spacing
This refers to the conversion of YUV color separated signal to
RGB signal. There are two formats for this, SDTV BT.601 and
HDTV BT.709. This unit can switch between them as required.
Additional information