Synchronization of video and data

• US 7,853,865 B2
• Filed: 07/08/2005
• Issued: 12/14/2010
• Est. Priority Date: 03/19/2002
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Errico, James, Li, Baoxin
• Primary Examiner(s): RIES, LAURIE ANNE
• Application Number:
  US11/177,868
• Publication Number:
  US 20050271146A1
• Time in Patent Office: 1,985 Days
• Field of Search: 715/723, 715/720, 715/719, 715/200, 715/201, 725/113, 725/92, 707/100
• US Class Current: 715/201
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 21/8547 involving timestamps for synchronizing content
• CPC Class Codes: H04N 21/8549 Creating video summaries, e.g. movie trailer retrieval in video databases by using presentations in form of a video summary G06F16/739

Abstract

A system including a video stream and a data stream. The system synchronizes the data stream to different portions of the video stream.

Claims

1. A method of using a video with associated data comprising:

(a) providing a video that includes a plurality of segments wherein a plurality of said segments include associated data semantically descriptive of the content thereof; and

(b) modifying at least one of a transmission and a storage of a plurality of said segments of said video based upon said associated data, wherein said modification includes employing unequal error protection in error prone channels.

2. The method of claim 1 wherein said modification includes allocating an unequal number of bits, based at least in part upon said associated data, to said segments.

3. The method of claim 2 wherein said segments whose contents are relatively less in importance are allocated relatively less number of said bits than segments whose contents are greater in relative importance.

4. The method of claim 1 wherein said relatively higher error protection is applied to relatively higher priority segments.

5. The method of claim 1 further comprising retransmission of relatively important segments in case of data loss.

6. The method of claim 1 further comprising modifying a transmitter power.

7. The method of claim 6 wherein said modifying said transmitter power is responsive to power restrictions of a transmitting device.

8. The method of claim 6 wherein said modifying said transmitter power includes dropping segments of less importance.

9. A method of using a video with associated data comprising:

(a) providing a video that includes a plurality of segments wherein a plurality of said segments include associated data descriptive of the content thereof; and

(b) modifying at least one of a transmission and a storage of a plurality of said segments of said video based upon said associated data, wherein said modification includes allocating an unequal number of bits, based at least in part upon said associated data, to said segments by employing unequal error protection in error prone channels.

10. The method of claim 9 wherein said segments whose contents are relatively less in importance are allocated relatively less number of said bits than segments whose contents are greater in relative importance.

11. The method of claim 9 wherein said relatively higher error protection is applied to relatively higher priority segments.

12. The method of claim 9 further comprising retransmission of relatively important segments in case of data loss.

13. The method of claim 9 further comprising modifying a transmitter power.

14. The method of claim 13 wherein said modifying said transmitter power is responsive to power restrictions of a transmitting device.

15. The method of claim 13 wherein said modifying said transmitter power includes dropping segments of less importance.