User manual

Imagestore HDTV User Manual Overview
Miranda Technologies Ltd Page 29
Overview
OverviewOverview
Overview
Introduction
This introduction provides a basic overview of the concept of the unit and
includes instructions for getting started.
An extensive range of options and upgrades are available for Imagestore
HDTV and this section describes the purpose and features of each
enhancement. More detailed and specific information regarding operation,
configuration, installation and support are provided in later sections.
Imagestore HDTV (Product code IS-HDTV) is part of Miranda Technologies
Ltd's professional broadcast equipment range of products and its primary use
is to insert logos into a HD-SDI digital video signal. The capabilities of this
2U unit include simple logo insertion, still and animated images.
Applications
Imagestore HDTV is typically used to insert a still or animated logo, channel
identification, a programme schedule, an advertisement, an emergency
image, or a combination of any two of those. Each of these resources may be
brought on-air from the 40-image library (optionally 400, 1000 or 2000
image). Alternatively, external 'live' fill and key signals from a character
generator, or a still/animation store, can be directly inserted into the HD
signal.
Concept
Imagestore HDTV is set up for operation where the two keyers are arranged
in series as shown below. This configuration allows two images to be keyed
simultaneously, but independently, over the background video.
A fail-safe mechanical Video Relay Bypass option (VRB-HD-001) is
available that directly connects the background video source to the
programme output in the event of a power supply problem.