small-scale video and audio services based on drm standard bes conference 2010, india troxler josef
TRANSCRIPT
Small-scale video and audio services based on DRM standard
BES Conference 2010, India
Troxler Josef
What is DrTV?
Main advantages
One single transmitter can reach millions of people anywhere, anytime and with unlimited coverage possibilities ranging from 100 km² up to well over 5’000’000 km² (depending on the antenna system)
DrTV offers free-of-charge reception and is independent of any gatekeepers and third party providers like satellites, cable networks or internet.
DrTV keep citizens living abroad informed and up-to-date about what is going on in their home country.
One video stream can be accompanied by several audio streams, allowing for synchronous multi-language support
January 10
DrTV is a new application based on DRM.It enables small-scale video and audio services
for cost efficient large area distribution of information and education programs
ONE transmitter covers huge areas, large population and several countries!
Shortwave transmission – the most economic way to reach millions of listeners
DrTV: System overview
January 10
DrTV represents a join development between Thomson, Fraunhofer Institute IS (Germany), Uniwave SAS (France)
New Star Electronics (China) and Hipshing (China)
Video SourceThomson DRM ContentServer
with DrTV Encoder
Thomson DRM Transmission System
Uniwave DRM Receiver
with DrTV Chipset
Live Programor File
MDI Stream DRM SignalOn-Air
What makes DrTV work
DrTV is a new DRM application. It is made possible by enhancement of the Coder (ContentServer) and Decoder (Receiver) and enlargement of the transmitter bandwidth to 20 kHz.
To receive and play DrTV, the receiver (like Uniwave) must have enough CPU power (Central Processing Unit) to be able to decode DRM 20 kHz bandwidth.
The receiver must be able to convert and display the picture stream on the monitor.
January 10
The CPU of an Intel micro-processor
Thomson ContentServer
Thomson ContentServer as an asset for any radio broadcast chain
The newest model has been enhanced to enable DrTV
In addition to DrTV, the Content Server provides numerous advanced and very useful services like:
Journaline EPG (Electronic Program Guide) DRM Text messages Slide shows DRM signaling DRM multiplex generation
One ContentServer can send simultaneously the signal to any number of DRM modulators at various transmitter sites
January 10
New released Di-Wave 100 receiver
Successfully demonstrated at many exhibitions and symposiums and showed excellent results during 2008 Olympics at Beijing with text-based information service known as Journaline®
Reception possible with DM, FM-RDS, SW/MW/LW, … DRM+, TDMB, DAB+
3.5” TFT color screen (similar to mobile Phone)
Multi-language graphic user interface Including English, Chinese, French, German and Spanish
Designed and manufactured in China (Chengdu and Dongguand) in partnership of Uniwave SAS France
7January 10
DRM Picture Transmission. Examples of screen
January 10
Main menu
DRM Radio menu Journaline, live information
Pictures menuVideo sample
125 mm (H) x 65 mm (W) x 232 mm (L)3.5 » TFT LCD color screen
Where is DRTV with Shortwave uniquely useful ?
Store-and-Forward video of news programming for
Businessmen and expatriates in areas with poor Internet access
For national fishing fleets
For citizens travelling abroad with limited Internet access
For distance learning projects in remote areas and for nomadic populations
For keeping citizens informed and connected in catastrophic situations, where local broadcast and communication infrastructure has broken down
January 10
International Shortwave Transmissions
With expanding international trade and migration, more and more people are traveling and living abroad
Mobile TV over shortwave is an interesting option to cover huge areas with news services far away from home
January 10
Example 1: International News Service (High Sea conflict between Korea and South Korea)
Sample from a real DRTV transmission in short wave
Example distance learning system
For fast growing economies such as India, education is a priority, but not easy to achieve when the kids and students are in remote areas, small villages and when there is limited electricity and thus internet
January 10
Example distance learning system
DrTV enables the highly effective use of distance learning in combination with the Uniwave receiver
Reception is possible anywhere in the world - any time of day - and with an absolute minimum of new infrastructure
January 10
Keeping People in disaster areas informed
Shortwave broadcast is worth its weight in gold when it comes to reaching trouble spots and disaster areas at short notice
When natural disaster strikes, communications infrastructure is usually strongly affected at the exact time when local populations require reliable news and information
DrTV can reach into such disaster areas from far away, guiding, informing and comforting the stricken people
January 10
Keeping national fisher fleets informed
Store-and-forward video programming (news on demand)
Shortwave broadcast can reach fishing fleets in far away places
All they need is a shortwave receiver - no other complicated and expensive infrastructure is required
January 10
Next Steps
Detailed field tests Preparation of suitable content (different kinds of videos, etc.) Simulation/calculation of expected service parameters like field
strength, mode, protection, antenna parameters, etc.
Set-up of measurement and monitoring Define measurement program Mobile reception Stationary reception Spectrum measurement Service reliability Service quality
Measurement of minimum requirements for transmitter specifications
January 10
Coming developments: New Uniwave Receivers
April 2009 2009 2010 2010 (H2) 2011 (?)
Di-Wave 100 Di-Wave 200 Step up Di-Wave 300 EDUCATION TOOL
Di-Wave Dr TV Di-Wave 400
DRM FUNCTIONS• Station name, program information• Journaline ®• MOT Slideshow• Listening time-shift : 10min• Listening time-shift : 10min
RADIO RECEPTION• DRM on shortwave , long waveand medium wave• FM - RDS stereo on phones• SW/MW/LW• 768 Station memories
256 DRM/256 FM/256 AM
ADDITIONAL FEATURES• USB TO PRINTER• RECORD FUNCTION• EQ• E- BOOK• Dr TV• DRM + , TDMB , DAB+
MULTIMEDIA• USB/SD card reader• MP3 playback• MP4 playback• Photo Album Viewer
OTHER FEATURES• 3.5” TFT display• Multi-language graphic User Interface
English, Chinese, German, French, Spanish• Time/date and Sleep Timer• Headphone jack• External antenna socket• Sizable Telescopic antenna• Speaker: 3” – 1 W
January 10
Energy supply alternatives for Uniwave Receiver
January 10
with normal batteries with chargeable batteries with power supply
connecting to mains
with normal batteries with chargeable batteries with power supply
connecting to mains with dynamo
with normal batteries with chargeable batteries with power supply connecting to
mains with movable solar panel
Solar panel
Additional features for new receivers
On-line Games
Etc … GPS
Digital life Radio Digital life videos Digital Music News Journaline Picture exchange MOT slide show …
January 10
Small-scale video services are offering Video and Audio Services, similar to mobile TV
but to cover huge areas with on single transmitter!
Multimedia - a great combination of Radio and TVbased on HF broadcast technology and DRM