PACKETIZATION

• US 20080101409A1
• Filed: 10/26/2006
• Published: 05/01/2008
• Est. Priority Date: 10/26/2006
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Everest, Paul S., Wee, Susie J., Apostolopoulos, John G., West, Matthew J.
• Application Number:
  US11/553,463
• Publication Number:
  US 20080101409A1
• Time in Patent Office: Days
• US Class Current: 370/473
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 65/1101 Session protocols
• 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: H04L 65/80 Responding to QoS

Abstract

A method and apparatus analyze a compressed image code stream to determine logical boundaries of segments and parse the data stream into packets, wherein the packets are configured to reduce a number of partial logical segments in individual packets

Claims

1. A method comprising:

analyzing a compressed data stream to determine logical boundaries of segments; and

parsing the data stream into packets, wherein the packets are configured to reduce a number of partial logical segments in individual packets.

2. The method of claim 1, wherein the method is carried out in a real-time lossy transmission environment.

3. The method of claim 1, wherein the compressed data stream comprises a wavelet-based compression code-stream format.

4. The method of claim 3, wherein compressed data stream comprises JPEG 2000.

5. The method of claim 1, wherein the packets are configured such that each segment is solely contained in a packet.

6. The method of claim 1, wherein the packets are configured such that one or more segments are included in a packet if each segment is an entirely contained within the packet.

7. The method of claim 1 further comprising applying varying levels of quality of service (QoS) to different segments, wherein the packets are configured such that segments to which is applied a higher level of QoS are split amongst packets and segments to which is applied a lower level of QoS either are each entirely contained in a packet or are solely contained in a packet.

8. The method of claim 1 further comprising prioritizing the logical segments, wherein the packets are configured such that segments having a high priority are solely contained in a packet and segments having a low priority are combined and split amongst packets.

9. The method of claim 8, wherein the logical segments are prioritized based on each segment'"'"'s contribution to image quality.

10. The method of claim 1 further comprising transmitting the packets wirelessly to a display device.

11. The method of claim 10, wherein the packets are transmitted using an ultra wideband connection.

12. An image transmission device comprising:

one or more processing units configured to;

analyze a compressed data stream to determine logical boundaries of segments; and

parse the data stream into packets, wherein the packets are configured to reduce a number of partial logical segments in individual packets; and

a transmitter configured to wirelessly transmit the packets to at least one image receiving device.

13. The device of claim 12 further comprising a decoder configured to decode video or graphics data into a standardized uncompressed digital video or graphics data.

15. The device of claim 12, wherein the spatial compressor operates on a full frame of incoming data, one frame at a time to provide sequential compress video or graphics data.

16. The device of claim 12, wherein the packets are configured such that each segment is solely contained in a packet.

17. The device of claim 12, wherein the packets are configured such that one or more segments are included in a packet if each segment is an entirely contained within the packet.

18. The device of claim 12, wherein the one or more processing units are further configured to apply varying levels of quality of service (QoS) to different segments, wherein the packets are configured such that segments to which is applied a higher level of QoS are split amongst packets and segments to which is applied a lower level of QoS either are each entirely contained in a packet of are solely contained in a packet.

19. The device of claim 12 prioritizing the logical segments, wherein the packets are configured such that segments having a high priority are solely contained in a packet and segments having a low priority are split amongst packets.

14. The device of 12, wherein the one or more processing units are configured to spatially compress the digital video or graphics data.

20. A computer readable medium comprising instructions directing one or more processing units to:

analyze a data stream to determine logical boundaries of segments; and

parse the data stream into packets, wherein the packets are configured to reduce a number of partial logical segments in individual packets.