1)
DVB-T is the European
terrestrial digital TV standard, Chinese terrestrial television using DTMB
standard, cable TV with DVB-C standard.
2) This kind of DVB-C + OTT set top box, in the field of cable TV, several set top box manufacturers are
promoting. Its main advantage is directly inherited the existing cable
subscribers, compatible with the current cable business, also can use wired
two-way network. These advantages are mainly standing in the point of view of
cable operators. From a user perspective, this kind of fusion of type box, can
use the original DVB-C system, see some local Taiwan live TV. Because OTT TV
program supplier is operating, no local level resources. Another advantage is
that the bandwidth of the DVB-C is very abundant; provide some hd broadcast
channel accessibility. Pure OTT STB, often limited to the home broadband, in
terms of resolution can't achieve real hd (1080 p).
From the above analysis, DVB + OTT have more certain
advantages than pure OTT STB in theory, but in practice, there are a few
questions:
A. DVB + OTT set-top boxes content are customized
with promotion, the user had no choice, the final quality and experience it is
hard to compare with OTT box;
B. the DVB + OTT STB cost higher than the pure OTT STB (DVB modem + CA card), this charge
is a problem;
C. cooperation with local cable is a good prospect,
each bosom cable companies throughout all the provinces of the problem is the
selfishness, cooperation mode is difficult to achieve unity, and different
custom requirements will further push up the cost.
3) in summary, DVB will eventually be replaced by
OTT ( had to be very painful to admit it: DVB soon will shrink to a small size
market), OTT problem is temporary, with the development of optical fiber
household will be solved. At this stage for the user to select a given unicom
or telecom IPTV + OTT STB may be more reasonable, in the long run I believe OTT stb will unify
the whole country. User said I look at the contents I like, content producers
say I take what I like, this is the spirit and power of the Internet.
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