Adaptive media playout by server media processing for robust streaming

• US 20070067480A1
• Filed: 05/04/2006
• Published: 03/22/2007
• Est. Priority Date: 09/19/2005
• Status: Abandoned Application

• Current Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Kerofsky, Louis, Beek, Petrus J.
• Application Number:
  US11/417,693
• Publication Number:
  US 20070067480A1
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04N 21/234381 by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
• CPC Class Codes: H04N 21/23805 Controlling the feeding rate to the network, e.g. by controlling the video pump
• CPC Class Codes: H04N 21/2402 Monitoring of the downstream path of the transmission network, e.g. bandwidth available traffic monitoring in data switching networks H04L43/00; monitoring data switching networks utilization H04L43/0876
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/43072 of multiple content streams on the same device

Abstract

A system for sending video includes a sender creating a second plurality of frames for a temporal time period of the video based upon a first plurality of frames for the temporal time period of the video. The creating is such that the second plurality of frames includes a greater number of frames than the first plurality of frames. The sender seconds the second plurality of frames to a receiver at a frame rate greater than the frame rate at which the receiver is going to render the second plurality of frames.

Claims

1. A system for sending video comprising:

(a) a sender creating a second plurality of frames for a temporal time period of said video based upon a first plurality of frames for said temporal time period of said video, such that said second plurality of frames includes a greater number of frames than said first plurality of frames;

(b) said sender sending said second plurality of frames to a receiver at a frame rate greater than the frame rate at which said receiver is going to render said second plurality of frames.

2. The system of claim 1 wherein said sender adjust a bit rate of sending said second plurality of frames based on the bandwidth of a channel between said sender and said receiver.

3. The system of claim 1 wherein said sender modifies the desired presentation rate for presentation by said receiver of said second plurality of frames than the anticipated presentation rate of said first plurality of frames.

4. The system of claim 1 wherein said first plurality of frames is live video.

5. The system of claim 1 wherein said first plurality of frames is stored video.

6. The system of claim 2 wherein said bit rate is lowered with decreased bandwidth of said channel.

7. The system of claim 1 wherein said sending modifies a set of presentation time stamps for said second plurality of frames in such a manner that said second plurality of frames is rendered at a frame rate different than the frame rate of said first plurality of frames.

8. The system of claim 1 wherein said sender transcodes said video.

9. The system of claim 1 wherein said creating of said second plurality of frames is performed prior to encoding of said video for subsequent said sending.

10. The system of claim 1 wherein said sender incorporates a delay-constrained rate adaptation.

11. The system of claim 1 wherein said creating and subsequent encoding of said second plurality of frames are jointly optimized.

12. The system of claim 1 wherein said sender and said receiver jointly optimize said creating.

13. The system of claim 12 wherein said jointly optimizing includes selecting the number of frames to interpolate.

14. The system of claim 12 wherein said jointly optimizing includes selecting the number of frames to send.

15. The system of claim 1 wherein said first plurality of frames is the startup of said video.