Huawei V100R001 User Manual page 139

HUAWEI TE30 Videoconferencing Endpoint
User Guide
B
broadcast (site)
broadcast single
(site)
built-in MCU
C
call absent (sites)
call site
cascading
camera preset
CIF
continuous
presence
Issue 01 (2013-03-27)
resolution (also known as 720 pixels of vertical resolution), while the
letter p stands for progressive scan or non-interlaced. When broadcast
at 60 frames per second, 720p features the highest temporal (motion)
resolution possible under the ATSC standard. Progressive scanning
reduces the need to prevent flicker by filtering out fine details, so
sharpness is much closer to 1080i than the number of scan lines
would suggest.
All sites, except for the site being broadcast, view the site that is
broadcast. On the Broadcast Site screen, users can choose between
Broadcast Single and Broadcast in Turn.
Broadcast one specified site.
An built-in unit of an endpoint, using the built-in MCU, the endpoint
can hold a multipoint conference that supports multiple functions,
such as site access, video exchange, audio mixing, data processing,
and signaling interaction.
Place calls to all the sites that are on the site list but are absent from
the conference.
Place a call to a site to add the site to the conference.
Multiple MCUs are connected in series at different layers to allow the
number of participants to expand beyond what a single MCU can
support. In cascading mode, an MCU in an upper layer can control an
MCU in a lower layer.
Users can control a camera by zooming, panning, and tilting the
camera or changing the focus. Then, users can store this camera
position and assign a number to this position. This preset position is a
camera preset. During a conference, users can move the camera to a
camera preset by selecting the relevant number.
CIF (Common Intermediate Format), also known as FCIF (Full
Common Intermediate Format), is a format used to standardize the
horizontal and vertical resolutions in pixels of YCbCr sequences in
video signals, commonly used in video teleconferencing systems. It
was first proposed in the H.261 standard.
A feature in multi-point conferencing that allows the video endpoint
to see images from multiple video endpoints at the same time. All
parties remain continuously visible or 'present' for the duration of the
call and the user can have control over the screen layout. Continuous
presence is better suited for team collaboration since it allows
participants to see the reactions (body language) of all participants,
not just the speaker.
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