TELEsatelit - TELE-satellite International Magazine

col, monitor object carousel for changes,
DSM-CC stream events, security model
– trusted & untrusted applications, same
origin policy, application signaling & lifecycle
model, capability exchange, basic
PVR scheduling (optional) and media
download (optional).
Even if you are not a dedicated receiver
designer, you can probably easily recog-
nize the terms related to digital TV specifications
and to the Internet. DSM-CC
is about downloading data through the
digital TV channel while HTTP refers to
the same process but through the Internet
connection. HTTP and RTSP are the
streaming video formats used to deliver
movies via the Internet while in DVB
we have a transport stream (TS). Java
scripts are used in both worlds. Quite
often the OSD you can see on the screen
is coded with Java.
HbbTV has some “competitors” - other
solutions for interactive TV services
118 TELE-satellite — Global Digital TV Magazine — 12-01/2011 — www.TELE-satellite.com
developed previously that deliver similar
functionality. These are: MHEG (Multimedia
and Hypermedia Expert Group)
– popular in the United Kingdom - and
MHP (Multimedia Home Platform), an
open programming standard developed
by DVB and especially popular in Italy.
It is expected that HbbTV will be interoperational
with them while ensuring
significant enhancement to the viewing
experience. It is also expected that the
first two countries in which HbbTV will
become popular will be Germany and
France.
HbbTV exemplary implementations
were shown at IFA and IBC in 2009. To
have an idea about the “new look” that
HbbTV makes possible see the pictures
taken at IFA on ARD stand. German
operator ARD has demonstrated 14 different
applications using HbbTV.
The HbbTV specification has been submitted
to ETSI by the end of November
2009 under reference ETSI TS 102
796 “Hybrid Broadcast Broadband TV
(HBBTV)”. You can find more info on the
official web page: http://hbbtv.org/.