Universal services multiplexer and time-based interleaving of multiple streams
View Patent ↗Interleaving multiple streams of data using a universal services multiplexer is followed by conveying a time interleaved multiplexer stream to a remote QAM module. A universal services multiplexer interleaves multiple streams of data into a time interleaved multiplexer stream.
1. A method of video distribution processing, comprising:
interleaving multiple streams of SPTSs and MPTSs using a universal services multiplexer to form a time interleaved multiplexer stream (TIMS) of MPTSs; and
conveying the time interleaved multiplexer stream in a dedicated transmission from the universal services multiplexer to a TIMS conversion unit not collocated with the universal services multiplexer, having an input buffer that accepts data from the universal services multiplexer,
wherein the universal services multiplexer produces an MPEG output format is digitally transported to the TIMS conversion unit,
wherein modulation of the time interleaved MPTSs into a multichannel RF signal is carried out in the TIMS conversion unit, and
wherein all timing and rate management is conducted at the universal services multiplexer.
2. The method of claim 1 , further comprising receiving the time interleaved multiplexer stream at the TIMS conversion unit.
3. The method of claim 2 , further comprising conveying a single RF output to a customer premises RF signal equipment from the TIMS conversion unit.
4. The method of claim 2 , further comprising conveying another time interleaved multiplexer stream to another TIMS conversion unit; and receiving the another time interleaved multiplexer stream at the another TIMS conversion unit.
5. The method of claim 4 , further comprising conveying another single RF output to another customer premises RF signal equipment from the another TIMS conversion unit.
6. The method of claim 2 , wherein the universal services multiplexer breaks the time interleaved multiplexer stream into segments where each segment fits within an Ethernet frame.
7. The method of claim 6 , wherein each segment includes at least one time interleaved multiplexer chunk that includes bytes destined for a particular output modulator located in the TIMS conversion unit.
8. The method of claim 7 , wherein each packet of each stream of data is broken down to fragments, where a fragment length is a size of a time interleaved multiplexer chunk.
9. The method of claim 7 , wherein each of packet of each stream of data is broken down into packets with IP headers added.
10. A process of operating a hybrid fiber coax network including the method of claim 1 .
11. A system for distributing data, comprising:
a universal services multiplexer that interleaves multiple streams of data into a time interleaved multiplexer stream (TIMS); and
a TIMS conversion unit coupled to the universal services multiplexer but not collocated with the universal services multiplexer, the TIMS conversion unit having an input buffer that accepts data from the universal services multiplexer,
wherein the universal services multiplexer produces an MPEG output format that is digitally transported in a dedicated transmission to the TIMS conversion unit,
wherein modulation of digital data into a multichannel RF signal is carried out in the TIMS conversion unit,
wherein the TIMS conversion unit produces a multichannel RF output, and
wherein all timing and rate management is conducted at the universal services multiplexer.
12. The system of claim 11 , further comprising a customer premises equipment coupled to the TIMS conversion unit.
13. The system of claim 11 , further comprising another TIMS conversion unit coupled to the universal services multiplexer, but remote from the universal service multiplexer.
14. The system of claim 13 , further comprising another customer premises equipment coupled to the another TIMS conversion unit.
15. The system of claim 11 , wherein the universal services multiplexer breaks the time interleaved multiplexer stream into segments where each segment fits within an Ethernet frame.
16. The system of claim 15 , wherein each segment includes at least one time interleaved multiplexer chunk that includes bytes destined for a particular output modulator located in the TIMS conversion unit.
17. The system of claim 11 , further comprising an allocator coupled to the input buffer and a plurality of modulators coupled to the allocator.
18. The system of claim 11 , wherein the TIMS conversion unit is coupled to the universal services multiplexer with a packet switched network.
19. A hybrid fiber coax network comprising the system of claim 11 .