System and method for statistical multiplexing of video channels for DVB-H mobile TV applications
View Patent ↗A DVB-H transmitter having a plurality of video encoders each having a variable bit rate associated with IP datagrams for each television program broadcast by one RF channel. A method is also provided for statistical multiplexing of video channels for DVB-H mobile TV applications, wherein the method includes jointly configuring a plurality of video encoders each having a variable bit rate associated with IP datagrams for each television program broadcast by one RF channel.
1. A Digital Video Broadcasting-Handheld (DVB-H) transmitter comprising a plurality of video encoders each having a variable bit rate associated with internet protocol (IP) datagrams for each television program broadcast by one radio frequency (RF) channel.
2. The transmitter of claim 1 , wherein each video encoder creates said variable bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
3. The transmitter of claim 1 , further comprising a control mechanism operatively connected to said plurality of video encoders, wherein said control mechanism measures a fixed total bit rate generated from all of said plurality of video encoders and fixes a uniform video quality standard among all TV channels.
4. The transmitter of claim 1 , further comprising a DVB-H encapsulator operatively connected to each video encoder, wherein said DVB-H encapsulator applies a Multi Protocol Encapsulation (MPE) section and a Forward Error Correction (FEC) section to transmitted IP datagrams.
5. The transmitter of claim 4 , wherein said DVB-H encapsulator generates a variable data burst size for each TV channel by adapting the number of MPE columns on a MPE frame and adapting the number of FEC columns for each data burst to retain a constant MPE-FEC rate corresponding to said transmitted IP datagrams.
6. The transmitter of claim 1 , wherein each video creates said variable bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
7. The transmitter of claim 4 , wherein said DVB-H encapsulator provides a Delta-t parameter for said each data burst independently to convey timing information to a receiver.
8. A Digital Video Broadcasting - Handheld (DVB-H) transmitter comprising:
a plurality of video encoders operatively connected to one another, wherein each video encoder corresponds with a separate television (TV) channel, and wherein said each video encoder receives audio and video (AV) internet protocol (IP) datagrams and generates a variable encoder bit rate corresponding to an AV transmission signal for a particular TV channel;
a control mechanism operatively connected to said plurality of video encoders, wherein said control mechanism measures a fixed total encoder bit rate generated from all of said plurality of video encoders and to fix a uniform video quality standard among all TV channels;
a DVB-H encapsulator operatively connected to said plurality of video encoders, wherein said DVB-H encapsulator applies a Multi Protocol Encapsulation (MPE) section and a Forward Error Correction (FEC) section to transmitted IP datagrams, and wherein said DVB-H encapsulator generates a variable data burst size for each TV channel by adapting the number of MPE columns on a MPE frame and adapting the number of FEC columns for each data burst to retain a constant MPE-FEC rate corresponding to said transmitted IP datagrams; and
a multiplexer operatively connected to said DVB-H encapsulator, wherein said multiplexer receives said transmitted IP datagrams and generate DVB-H transport stream (TS) data packets.
9. The transmitter of claim 8 , wherein said each video encoder creates a variable encoder bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
10. The transmitter of claim 8 , wherein said DVB-H encapsulator provides a Delta-t parameter for said each data burst independently to convey timing information to a receiver.
11. A method for statistical multiplexing of video channels for Digital Video Broadcasting - Handheld (DVB-H) mobile television (TV) applications in a DVB-H transmitter, said method comprising jointly configuring a plurality of video encoders each having a variable bit rate associated with internet protocol (IP) datagrams for each television program broadcast by one radio frequency (RF) channel.
12. The method of claim 11 , further comprising creating said variable bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
13. The method of claim 11 , further comprising:
operatively connecting a control mechanism to said plurality of video encoders;
generating a fixed total bit rate generated from all of said plurality of video encoders; and
generating a fixed uniform video quality standard among all TV channels.
14. The method of claim 11 , further comprising:
operatively connecting a DVB-H encapsulator to each video encoder;
applying a Multi Protocol Encapsulation (MPE) section and a Forward Error Correction (FEC) section to transmitted IP datagrams; and
generating a variable data burst size for each TV channel by:
adapting the number of MPE columns on a MPE frame; and
adapting the number of FEC columns for each data burst to retain a constant MPE-FEC rate corresponding to said transmitted IP datagrams.
15. The method of claim 11 , further comprising creating said variable bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
16. The method of claim 11 , further comprising adapting a Delta-t parameter for said each data burst independently to convey timing information to a receiver.
17. A program storage device readable by computer and comprising a program of instructions executable by said computer to perform a method for statistical multiplexing of video channels for Digital Video Broadcasting - Handheld (DVB-H) mobile television (TV) applications, said method comprising jointly configuring a plurality of video encoders each having a variable bit rate associated with internet protocol (IP) datagrams for each television program broadcast by one radio frequency (RF) channel.
18. The program storage device of claim 17 , wherein said method further comprises creating said variable bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
19. The program storage device of claim 17 , wherein said method further comprises:
operatively connecting a control mechanism to said plurality of video encoders;
generating a fixed total bit rate generated from all of said plurality of video encoders; and
generating a fixed uniform video quality standard among all TV channels.
20. The program storage device of claim 17 , wherein said method further comprises:
operatively connecting a DVB-H encapsulator to each video encoder;
applying a Multi Protocol Encapsulation (MPE) section and a Forward Error Correction (FEC) section to transmitted IP datagrams; and
generating a variable data burst size for each TV channel by:
adapting the number of MPE columns on a MPE frame; and
adapting the number of FEC columns for each data burst to retain a constant MPE-FEC rate corresponding to said transmitted IP datagrams.
21. The program storage device of claim 17 , wherein said method further comprises creating said variable bit rate by controlling quantization parameters associated with said particular TV channel to achieve a given picture quality.
22. The program storage device of claim 17 , wherein said method further comprises adapting a Delta-t parameter for said each data burst independently to convey timing information to a receiver.