Ensemble Designs 5420 SD Logo Inserter - Manual (Page 2)

MODULE OVERVIEW
The 5420 Digital Logo Inserter module allows the keying (insertion) of a graphic image or
animation sequence over a serial digital program background. The keying operation is an
additive linear key with a density (transparency) control.
Three modes of operation are available: DSK, DSK Preview, or Fill/Key. In DSK mode, the
module keys the graphic over the serial digital background and outputs the entire signal
on the PGM output BNCs. In the DSK preview mode, selecting a new event causes an on-
air event to transition off. The new event is sent to the PVW output but not transitioned
on-air. Activating the Cut or Mix control puts the event on-air and also feeds it to the
PVW output. In Fill/Key mode, two serial digital outputs are provided so the module can
source a key and fill to a switcher’s DSK input if desired.
Graphic stills, logos and animation sequences can be authored in targa format with any
computer software desired. These stills, logos and animation sequences are collected and
named with a PC application called Avenue Logo that comes on a CD with the module.
They are then downloaded to non-volatile flash memory on the module using the applica-
tion. Each image is stored in flash memory which can store up to 5 full frame images or
many smaller images, depending on their size. Total available storage is about 2 M pixels
or 8 MB. An average corner logo is approximately 100 x 100 pixels in size for a total area
of about 10,000 pixels, allowing the 5420 to store up to 200 average size logos. Each frame
in an animation sequences is considered one logo. Animation sequences can be up to 200
frames long (approximately 6.5 seconds in 525 mode).
Each logo can be defined by number, name, type and can be positioned horizontally and
vertically on an image by image basis using Avenue Logo or the Avenue remote control
system. In and out transition times can also be programmed for each image. A density
control allows changing the transparency of the key. These values are then stored for each
logo.
Images can be defined as events that can be cut or mixed on manually or triggered to
come on by GPI control from an external control device. Up to eight events can be defined
to correspond to the eight GPI inputs available on the Control connector on the rear of the
module. The 5815 Remote GPI panel can also be used to control the GPIs. GPI trigger 8
can be programmed to act as a regular GPI trigger or as a cut or mix control to transition
one of the other selected GPIs (1 – 7) as a cut or mix.
As shown in the 5420 functional block diagram on the following page, a serial digital back-
ground signal is fed to the module and enters a receiver/decoder circuit where it is
monitored for cable equalization and EDH processing. The reclocked background signal is
available from a loopback output BNC if needed. EDH status is reported for the input
signal.
The processed background signal then enters a linear keying circuit where the selected
key image cuts a hole in the background and the fill signal is added. When configured for
DSK mode, the background is added to the fill and a composited image of background with
key is available from the PGM output BNCs. Timing for the output signal is derived from
the serial input.
DSK w/Preview mode places the background and fill on the PVW output to be viewed
before being cut or mixed on-air as the next event.
Model 5420 Digital Logo Inserter
5420-2