Correcting for data losses with feedback and response

• US 20080148123A1
• Filed: 02/25/2008
• Published: 06/19/2008
• Est. Priority Date: 06/29/2001
• Status: Active Grant

• Current Assignee: Jason C. Hallford, Ramesh Pendakur
• Original Assignee: Jason C. Hallford, Ramesh Pendakur
• Inventors: Pendakur, Ramesh, Hallford, Jason C.
• Granted Patent: US 8,209,574 B2
• Time in Patent Office: Days
• US Class Current: 714/748
• CPC Class Codes: H04H 60/11 Arrangements for counter-measures when a portion of broadcast information is unavailable
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A digital content transmission and reception system that uses feedback and re-transmission of missing content is described. A content transmission system broadcasts a complete set of digital content to a plurality of content reception systems via a communication link. A content reception system receives a corresponding incomplete set of digital content, determines particular content portions that are missing, and provided feedback indicating the missing content portions to the content distribution system. The content distribution system the re-transmits content based on the feedback.

Claims

1. A method comprising:

transmitting a complete set of digital content to each of a plurality of content reception systems substantially simultaneously;

receiving feedback from a content reception system indicating that the content reception system received an incomplete set of digital content and indicating particular missing content;

determining content to re-transmit based on the feedback; and

transmitting the determined content.

2. The method of claim 1, wherein determining content to re-transmit includes referencing predetermined re-transmission instructions and determining based on the instructions and the feedback.

3. The method of claim 1, further comprising receiving feedback from each of the plurality of content reception systems, and wherein determining includes determining content to re-transmit to the content reception system based on each of the feedback and based on predetermined policy driven re-transmission instructions.

4. The method of claim 1, wherein transmitting the complete set of digital content further comprises:

accessing digital content;

dividing the digital content into a plurality of ordered content portions;

creating a manifest that indicates each of the content portions; and

transmitting the complete set of digital content comprising the plurality of content portions and the manifest.

5. A method comprising:

receiving an incomplete set of digital content from a content transmission system;

performing content reception verification to determine that there is a particular portion of missing content;

transmitting an indication that the set of content is an incomplete set including transmitting an indication of the particular portion of missing content;

receiving digital content that comprises at least some of the particular portion of missing content; and

combining the received digital content with the incomplete set of digital content.

6. The method of claim 5:

wherein the received incomplete set of digital content includes a manifest that indicates a corresponding complete set of digital content; and

wherein performing content reception verification to determine that there is a particular portion of missing content includes;

locating an identifier of a content portion in the manifest; and

recording that the content portion is missing if the identifier does not correspond to an identifier of a received content portion.

7. The method of claim 5, further comprising providing the combined content to a recipient.

8-14. -14. (canceled)

15. A content reception system comprising:

a data receiver to receive an incomplete set of digital content via a one way communication link having a bandwidth; and

a reception verification system to determine that the received set of digital content is an incomplete set by comparing received data indicating what a complete set would contain with the received incomplete set and to provide feedback that indicates the particular missing digital content that is needed to complete the set of digital content by a second communication link having a lower bandwidth.

16. The system of claim 15, wherein the content reception system is a content reception system to receive responsive digital content that is at least partially responsive to the feedback and to combine the responsive digital content with the incomplete set of digital content.

17. The system of claim 15, wherein the reception verification system is a reception verification system to maintain a missing content log that records missing content of the incomplete set of digital content and to provide feedback based upon the missing content log.

18-29. -29. (canceled)