Wireless transmission of multimedia streams which uses control information to associate error correction coding with an audiovisual stream

• US 9,515,776 B2
• Filed: 09/28/2012
• Issued: 12/06/2016
• Est. Priority Date: 07/05/2007
• Status: Active Grant

• Current Assignee: Coherent Logix, Incorporated
• Original Assignee: Coherent Logix, Incorporated
• Inventors: Shelby, Kevin A., Nysen, Peter J., Doerr, Michael B.
• Primary Examiner(s): Kumar, Pankaj
• Assistant Examiner(s): Brown, Reuben M
• Application Number:
  US13/629,844
• Publication Number:
  US 20130031588A1
• Time in Patent Office: 1,530 Days
• Field of Search: 714/752, 725/62
• US Class Current: 1/1
• CPC Class Codes: H03M 13/1102 Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
• CPC Class Codes: H03M 13/2732 Convolutional interleaver; Interleavers using shift-registers or delay lines like, e.g. Ramsey type interleaver
• CPC Class Codes: H03M 13/29 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
• CPC Class Codes: H03M 13/2906 using block codes H03M13/2957 takes precedence
• CPC Class Codes: H03M 13/2909 Product codes
• CPC Class Codes: H03M 13/2936 comprising an outer Reed-Solomon code and an inner convolutional code
• CPC Class Codes: H03M 13/2957 Turbo codes and decoding
• CPC Class Codes: H03M 13/6583 Normalization other than scaling, e.g. by subtraction
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/0069 Puncturing patterns
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 1/04 using frequency diversity
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/4381 : Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/4382 : Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6131 : involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/6437 : Real-time Transport Protocol [RTP]

Abstract

A system and method for wirelessly transmitting audiovisual information. A first plurality of packets including audiovisual information may be generated. A second plurality of packets including error correction coding information for the audiovisual information may be generated. Control information for associating the error correction coding information with the audiovisual information may be generated, and a third plurality of packets including the control information may also be generated. The plurality of packets, including the first, second, and third pluralities of packets, may be transmitted to a mobile device in a wireless manner. The control information may inform the mobile device of the association of the first error correction coding information with the audiovisual information.

Claims

1. A system for transmitting audiovisual information in a wireless manner, the system comprising:

an input for receiving audiovisual information;

transmit logic coupled to the input, wherein the transmit logic is configured to generate a first stream and a separately transmittable second stream, wherein one or more of the first stream and the second stream comprise first audiovisual information, wherein one or more of the first stream and the second stream comprise first error correction coding information associated with the first audiovisual information, wherein one or more of the first stream and the second stream comprise control information indicating that the first stream and the second stream are associated;

a transmitter coupled to the transmit logic, wherein the transmitter is configured to transmit the first stream and the second stream in a wireless manner.

2. The system of claim 1,

wherein the first stream comprises the first audiovisual information and is usable in stationary reception conditions without the second stream;

wherein the second stream comprises the first error correction coding information and is configured for use in association with the first audiovisual information in mobile reception conditions.

3. The system of claim 1,

wherein the first stream comprises the first audiovisual information and the first error correction coding information and is usable in stationary reception conditions without the second stream;

wherein the second stream comprises second error correction coding information and is configured for use in association with the first audiovisual information in mobile reception conditions.

4. The system of claim 3,

wherein the second error correction coding information is a different type of error correction coding information than the first error correction coding information.

5. The system of claim 3,

wherein the second error correction coding information is a same type of error correction coding information as the first error correction coding information, wherein the second error correction coding information is complementary to the first error correction coding information.

6. The system of claim 1,

wherein the first stream comprises the first audiovisual information and the first error correction coding information, wherein the second stream comprises second audiovisual information and second error correction coding information associated with the second audiovisual information, wherein the first audiovisual information and the second audiovisual information are configured for use together.

7. The system of claim 6,

wherein at least a portion of the second audiovisual information is the same audiovisual information as at least a portion of the first audiovisual information;

wherein the first error correction coding information is different than the second error correction coding information.

8. The system of claim 1,

wherein the first stream and the second stream are generated in a manner configured for transmission at different times and/or at different frequencies, wherein the transmitter is configured to transmit the first stream and the second stream at different times and/or at different frequencies, and wherein the control information indicates that the first stream and the second stream are transmitted at different times and/or at different frequencies.

9. A method for transmitting audiovisual information in a wireless manner, the method comprising:

generating a first plurality of packets, wherein the first plurality of packets comprise first audiovisual information;

generating a second plurality of packets, wherein the second plurality of packets comprise first error correction coding information for the first audiovisual information;

generating control information, wherein the control information indicates that the first error correction coding information is associated with the first audiovisual information;

transmitting the first plurality of packets, the second plurality of packets, and the control information in a wireless manner;

wherein the first plurality of packets and the second plurality of packets are transmitted one or more of;

     1) separated in time;

or

     2) separated in frequency, wherein the control information indicates that the first plurality of packets and the second plurality of packets are transmitted one or more of;

     1) separated in time;

or

     2) separated in frequency.

10. A non-transitory computer accessible memory medium storing program instructions for configuring audiovisual information for wireless transmission, wherein the program instructions are executable to:

receive first audiovisual information;

generate a first stream and a separately transmittable second stream associated with the first stream based on the first audiovisual information, wherein one or more of the first stream and the second stream comprise the first audiovisual information, wherein one or more of the first stream and the second stream comprise first error correction coding information associated with the first audiovisual information, wherein one or more of the first stream and the second stream comprise control information indicating that the first stream and the second stream are associated;

wherein the first stream and the second stream are configured for wireless transmission.

11. A wireless device configured to wirelessly receive audiovisual information, the wireless device comprising:

a receiver configured to receive a first stream and a separate second stream in a wireless manner, wherein one or more of the first stream and the second stream comprise first audiovisual information, wherein one or more of the first stream and the second stream comprise first error correction coding information associated with the first audiovisual information, wherein one or more of the first stream and the second stream comprise control information indicating that the first stream and the second stream are associated;

receiver logic coupled to the receiver, wherein the receiver logic is configured to;

associate the first stream and the second stream based on the control information indicating that the first stream and the second stream are associated;

process the first audiovisual information using the first error correction coding information, wherein after processing the first audiovisual information is configured for presentation.

12. The wireless device of claim 11,

wherein the first stream comprises the first audiovisual information and is usable in stationary reception conditions without the second stream;

wherein the second stream comprises the first error correction coding information and is configured for use in association with the first audiovisual information in mobile reception conditions.

13. The wireless device of claim 11,

wherein the first stream comprises the first audiovisual information and the first error correction coding information and is usable in stationary reception conditions without the second stream;

wherein the second stream comprises second error correction coding information and is configured for use in association with the first audiovisual information in mobile reception conditions;

wherein the receiver logic is further configured to process the first audiovisual information using the second error correction coding information.

14. The wireless device of claim 13,

wherein the second error correction coding information is a different type of error correction coding information than the first error correction coding information.

15. The wireless device of claim 13,

wherein the second error correction coding information is a same type of error correction coding information as the first error correction coding information, wherein the second error correction coding information is complementary to the first error correction coding information.

16. The wireless device of claim 11,

wherein the first stream comprises the first audiovisual information and the first error correction coding information, wherein the second stream comprises second audiovisual information and second error correction coding information associated with the second audiovisual information, wherein the first audiovisual information and the second audiovisual information are configured for use together, wherein the receive logic is further configured to:

process the first audiovisual information and the second audiovisual information using the first error correction coding information and the second error correction coding information.

17. The wireless device of claim 16,

wherein at least a portion of the second audiovisual information is the same audiovisual information as at least a portion of the first audiovisual information;

wherein the first error correction coding information is different than the second error correction coding information.

18. The wireless device of claim 11,

wherein the receiver is configured to receive the first stream and the second stream at different times and/or at different frequencies, wherein the control information indicates that the first stream and the second stream are transmitted at different times and/or at different frequencies, wherein the receive logic is further configured to associate the first stream and the second stream based on the control information indicating that the first stream and the second stream are transmitted at different times and/or at different frequencies.

19. A method for receiving audiovisual information in a wireless manner, the method comprising:

receiving a first plurality of packets in a wireless manner, wherein the first plurality of packets comprise first audiovisual information;

receiving a second plurality of packets in a wireless manner, wherein the second plurality of packets comprise first error correction coding information for the first audiovisual information;

receiving control information in a wireless manner, wherein the control information indicates that the first error correction coding information is associated with the first audiovisual information;

wherein the first plurality of packets and the second plurality of packets are received one or more of;

     1) separated in time;

or

     2) separated in frequency, wherein the control information indicates that the first plurality of packets and the second plurality of packets are transmitted one or more of;

     1) separated in time;

or

     2) separated in frequency;

associating the first error correction coding information and the first audiovisual information based on the control information indicating that first error correction coding information is associated the first audiovisual information and that the first plurality of packets and the second plurality of packets are transmitted one or more of;

     1) separated in time;

or

     2) separated in frequency;

processing the first audiovisual information using the associated first error correction coding information, wherein after processing the first audiovisual information is configured for presentation.

20. A non-transitory computer accessible memory medium storing program instructions for a wireless device to receive and process audiovisual information, wherein the program instructions are executable to:

receive a first stream and a separate second stream associated with the first stream, wherein one or more of the first stream and the second stream comprise first audiovisual information, wherein one or more of the first stream and the second stream comprise first error correction coding information associated with the first audiovisual information, wherein one or more of the first stream and the second stream comprise control information indicating that the first stream and the second stream are associated;

associate the first stream and the second stream based on the control information indicating that the first stream and the second stream are associated;

process the first audiovisual information using the first error correction coding information, wherein after processing the first audiovisual information is configured for presentation.