A message of thanks was broadcast by NTV in the immediate moments before analog broadcasting ceased at 11:59 p.m. Sunday.
The digitalization of TV broadcasting across the nation Sunday, except in three disaster-hit Tohoku prefectures, promotes more effective uses for airwaves previously occupied by analog broadcasting.
Transmitting information digitally uses two-thirds the bandwidth of analog as a result of higher compression rates. The freed-up bandwidth will be used for multimedia broadcasting to portable terminals, which is set to commence in April 2012.
Within the new multimedia service, a joint company established by NTT Docomo Inc., private key TV stations and other companies will provide paid programs such as movies, live sporting events and news programs to portable terminals and personal computers.
Due to the increasing number of smartphone users, the availability of airwaves has become increasingly tight. Part of the bandwidth freed by the digitalization of TV broadcasting will be used for next-generation mobile phones with large transmission capacities.
Freed bandwidth will also be used for intelligent transport systems that provide pinpoint locations of vehicles via wireless technology, contributing to road safety and the development of automotive technology.
No comments:
Post a Comment