Media data transcoding devices

• US 20050182855A1
• Filed: 02/13/2004
• Published: 08/18/2005
• Est. Priority Date: 02/13/2004
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Wee, Susie J., Apostolopoulos, John G.
• Granted Patent: US 7,797,454 B2
• Time in Patent Office: Days
• US Class Current: 709/247
• CPC Class Codes: H04L 2209/20 Manipulating the length of blocks of bits, e.g. padding or block truncation
• CPC Class Codes: H04L 2209/30 Compression, e.g. Merkle-Damgard construction
• CPC Class Codes: H04L 2209/603 Digital right managament [DRM]
• CPC Class Codes: H04L 9/3236 using cryptographic hash functions
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 19/63 using sub-band based transform, e.g. wavelets
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/234327 by decomposing into layers, e.g. base layer and one or more enhancement layers
• CPC Class Codes: H04N 21/23476 by partially encrypting, e.g. encrypting the ending portion of a movie
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/64792 Controlling the complexity of the content stream, e.g. by dropping packets intermediate media network packet handling H04L65/765; proxy provisioning conversion or adaptation for reducing the amount or size of exchanged application data H04L67/5651; negotiation of resources in wireless networks H04W28/16
• 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

Abstract

The present invention relates to transcoding devices. Embodiments of the present invention pertain to devices that receive scalable media and scalable profile data. Further, the devices generate transcoded media based on the scalable media and the scalable profile data. The devices also generate new scalable media and new scalable profile data based on the transcoded media.

Claims

1. A media data transcoding unit apparatus comprising:

a scalable media receiver configured to receive scalable media;

a scalable profile data receiver configured to receive scalable profile data;

a transcoder coupled to said scalable media receiver and said scalable profile data receiver, wherein said transcoder is adapted to transcode said scalable media based, at least in part, on said scalable profile data to generate transcoded media;

an encoder coupled to said transcoder, wherein said transcoder is adapted to receive said transcoded media and generate second scalable media based, at least in part, on said transcoded media; and

said encoder comprising a scalable profile data generator that generates second scalable profile data based, at least in part, on said transcoded media.

2. The media data transcoding unit apparatus of claim 1, wherein said media data transcoding unit apparatus is a legacy device.

3. The media data transcoding unit apparatus of claim 1, wherein said scalable profile data is encrypted.

4. The media data transcoding unit apparatus of claim 1, wherein said scalable profile data is unencrypted.

5. The media data transcoding unit apparatus of claim 1, wherein said scalable media and said scalable profile data are outputted together in a single file.

6. The media data transcoding unit apparatus of claim 5, wherein said scalable profile data and said scalable media are in said single file and said scalable profile data is at the beginning of said file.

7. The media data transcoding unit apparatus of claim 5, wherein said scalable profile data and said scalable media are in said single file and said scalable profile data is not at the beginning of said file.

8. The media data transcoding unit apparatus of claim 1, wherein said media data transcoding unit apparatus is an apparatus selected from the group consisting of a portable communications device, a stationary computing device, or a digital image capturing device.

9. The media data transcoding unit apparatus of claim 1, wherein any one of said scalable media and said scalable profile data are received by said media data transcoding unit apparatus from a network.

10. The media data transcoding unit apparatus of claim 1, wherein any one of said scalable media and said scalable profile data are stored on a storage device and retrieved by said media data transcoding unit apparatus from said storage device.

11. The media data transcoding unit apparatus of claim 1, wherein any one of a second scalable media, said second scalable profile data, and said second protection profile data are transmitted by said media data transcoding unit apparatus on a network.

12. The media data transcoding unit apparatus of claim 1, wherein any one of said second scalable media, said second scalable profile data, and said second protection profile data are stored on a storage device and retrieved by a device from said storage device.

13. A media data transcoding unit apparatus of claim 1, further comprising:

a protection profile data receiver configured to receive protection profile data; and

said encoder comprising a protection profile data generator that generates second protection profile data based, at least in part, on said transcoded media.

14. The media data transcoding unit apparatus of claim 13, wherein said protection profile data is encrypted.

15. The media data transcoding unit apparatus of claim 13, wherein said protection profile data is unencrypted.

16. The media data transcoding unit apparatus of claim 13, wherein two or more of said scalable media and said protection profile data are outputted together in a single file.

17. The media data transcoding unit apparatus of claim 16, wherein said protection profile data and said scalable media are in said single file and said protection profile data is at the beginning of said file.

18. The media data transcoding unit apparatus of claim 16, wherein said protection profile data and said scalable media are in said single file and said protection profile data is not at the beginning of said file.

19. The media data transcoding unit apparatus of claim 13, wherein two or more of said scalable media, said scalable profile data, and said protection profile data are outputted together in a single file.

20. A media data transcoding unit apparatus comprising:

a scalable media receiver configured to receive scalable media;

a scalable profile data receiver configured to receive scalable profile data;

a transcoder coupled to said scalable media receiver and said scalable profile data receiver, wherein said transcoder is adapted to transcode said scalable media based, at least in part, on said scalable profile data to generate second scalable media; and

said transcoder generating scalable profile data plus based, at least in part, on operations that said transcoder performed on said scalable media.

21. The media data transcoding unit apparatus of claim 20, wherein said media data transcoding unit apparatus is a legacy device.

22. The media data transcoding unit apparatus of claim 20, wherein said scalable profile data is encrypted.

23. The media data transcoding unit apparatus of claim 20, wherein said scalable profile data is unencrypted.

24. The media data transcoding unit apparatus of claim 20, wherein said scalable media and said scalable profile data are outputted together in a single file.

25. The media data transcoding unit apparatus of claim 24, wherein said scalable profile data and said scalable media are in said single file and said scalable profile data is at the beginning of said file.

26. The media data transcoding unit apparatus of claim 24, wherein said scalable profile data and said scalable media are in said single file and said scalable profile data is not at the beginning of said file.

27. The media data transcoding unit apparatus of claim 20, wherein said media data transcoding unit apparatus is an apparatus selected from the group consisting of a portable communications device, a stationary computing device, or a digital image capturing device.

28. The media data transcoding unit apparatus of claim 20, wherein any one of said scalable media and said scalable profile data are received by said media data transcoding unit apparatus from a network.

29. The media data transcoding unit apparatus of claim 20, wherein any one of said scalable media and said scalable profile data are stored on a storage device and retrieved by said media data transcoding unit apparatus from said storage device.

30. The media data transcoding unit apparatus of claim 20, wherein any one of a second scalable media, said second scalable profile data, and said second protection profile data are transmitted by said media data transcoding unit apparatus on a network.

31. The media data transcoding unit apparatus of claim 20, wherein any one of said second scalable media, said second scalable profile data, and said second protection profile data are stored on a storage device and retrieved by a device from said storage device.

32. A media data transcoding unit apparatus of claim 20, further comprising:

a protection profile data receiver configured to receive protection profile data; and

said transcoder generating protection profile data plus based, at least in part, on operations that said transcoder performed on said scalable media.

33. The media data transcoding unit apparatus of claim 32, wherein two or more of said scalable media and said scalable profile data are outputted together in a single file.

34. The media data transcoding unit apparatus of claim 33, wherein said protection profile data and said scalable media are in said single file and said protection profile data is at the beginning of said file.

35. The media data transcoding unit apparatus of claim 33, wherein said protection profile data and said scalable media are in said single file and said protection profile data is not at the beginning of said file.

36. The media data transcoding unit apparatus of claim 32, wherein any one of said scalable media and said protection profile data are stored on a storage device and retrieved by said media data transcoding unit apparatus from said storage device.

37. The media data transcoding unit apparatus of claim 32, wherein any one of a second scalable media and said second protection profile data are transmitted by said media data transcoding unit apparatus on a network.

38. The media data transcoding unit apparatus of claim 32, wherein any one of said second scalable media and said second protection profile data are stored on a storage device and retrieved by a device from said storage device.

39. The media data transcoding unit apparatus of claim 32, wherein two or more of said scalable media, said scalable profile data, and said protection profile data are outputted together in a single file.