Intelligent caching of media files

• US 8,171,167 B2
• Filed: 05/04/2008
• Issued: 05/01/2012
• Est. Priority Date: 11/13/2007
• Status: Active Grant

• Current Assignee: Masimo Corporation
• Original Assignee: Vantrix Corporation
• Inventors: Norton, Richard Elliott, Lavalliere, Joseph Leo Claude Mario, Lévèque, Xavier
• Primary Examiner(s): Winder, Patrice
• Assistant Examiner(s): Hussain, Tauqir
• Application Number:
  US12/114,798
• Publication Number:
  US 20090125677A1
• Time in Patent Office: 1,458 Days
• Field of Search: 709/218, 709/462
• US Class Current: 709/246
• CPC Class Codes: H04L 51/066 Format adaptation, e.g. format conversion or compression
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04L 67/303 Terminal profiles
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching

Abstract

A method of receiving and forwarding a multimedia message is provided. The multimedia message is adapted with a first adaptation profile into a first adapted message to be received in a first device. The multimedia message and the first adapted message are stored in a media cache. The message may then be forwarded from the first device to a second device that has a second adaptation profile by retrieving the first adapted message from the media cache and sending it to the second device if the first and second adaptation profiles match, otherwise the multimedia message is retrieved from the media cache and adapted with the second adaptation profile into a second adapted message that is then sent to the second device. In addition, the second adapted message is stored in the media cache.

Claims

1. A method for caching and forwarding a multimedia message, comprising:

employing at least one hardware processor for;

forwarding a multimedia message, comprising a message body having one or more media parts, to a destination device, comprising;

(1) determining a transcoding profile corresponding to capabilities of the destination device;

(2) provided the message body matches a cached message body and the transcoding profile matches a cached transcoding profile;

(3) retrieving the cached message body; and

(4) forwarding the multimedia message comprising the retrieved cached message body to the destination device;

otherwise;

(5) processing said one or more media parts of the message body, comprising;

(6) retrieving available cached media files transcoded from respective source media files, which individually correspond to those said one or more media parts, and for which associated cached transcoding profiles match said transcoding profile;

(7) retrieving available cached source media files, corresponding to those individual said one or more media parts for which cached media files are available but for which associated cached transcoding profiles do not match said transcoding profile;

(8) transcoding the retrieved cached source media files into corresponding adapted media files in accordance with said transcoding profile;

(9) transcoding remaining said one or more media parts, for which corresponding cached media files or cached source media files have not been found in the steps (6) and (7), into corresponding adapted media files in accordance with said transcoding profile;

(10) forming an adapted multimedia message comprising an adapted message body having the retrieved cached available media files from the step (6), the adapted media files from the steps (8) and (9); and

(11) forwarding the adapted multimedia message to the destination device.

2. The method of claim 1, wherein the step (3) comprises removing or modifying a media part of the message body.

3. The method of claim 2, further comprising generating a key for indexing enhancement settings used for performing the removing or modifying.

4. The method of claim 1, wherein the step (10) comprises merging two or more media parts corresponding to two or more said retrieved cached media files or said adapted media files.

5. The method of claim 4, further comprising generating a key for indexing enhancement settings used for performing the merging.

6. The method of claim 1, wherein the steps (8) and (9) comprise storing the adapted media files in a cache.

7. The method of claim 1, wherein the step (9) comprises storing the remaining said one or more media parts as corresponding cached source media files in a cache.

8. The method of claim 1, wherein the step (10) comprises storing the adapted message body in a cache.

9. The method of claim 1, wherein the step (1) comprises storing said transcoding profile in a cache.

10. The method of claim 1, further comprising generating respective unique keys for indexing the respective cached adapted media files, each unique key being formed as a combination of a signature of said each respective adapted media file and a signature of said transcoding profile.

11. The method of claim 1, further comprising generating a unique key for indexing the adapted message body, the unique key being formed as a combination of a signature of the adapted message body and a signature of said transcoding profile.

12. The method of claim 10, wherein each signature is a Message Digest 5 (MD5) signature.

13. The method of claim 11, wherein each signature is a Message Digest 5 (MD5) signature.

14. The method of claim 1, wherein the multimedia message is a Multimedia Messaging System (MMS) message.

20. The system of claim 1, wherein the computer readable instructions further cause the processor to perform one or more of the following:

to store the adapted media files in a cache;

to store the remaining said one or more media parts as corresponding cached source media files in a cache;

to store the adapted message body in a cache;

to store said transcoding profile in a cache.

15. A system for caching and forwarding a multimedia message, comprising:

at least one hardware processor;

a memory device having computer readable instructions stored thereon for execution by the processor causing the processor to perform;

forwarding a multimedia message, comprising a message body having one or more media parts, to a destination device, comprising;

(1) determining a transcoding profile corresponding to capabilities of the destination device;

(2) provided the message body matches a cached message body and the transcoding profile matches a cached transcoding profile;

(3) retrieving the cached message body; and

(4) forwarding the multimedia message comprising the retrieved cached message body to the destination device;

otherwise;

(5) processing said one or more media parts of the message body, comprising;

(6) retrieving available cached media files transcoded from respective source media files, which individually correspond to those said one or more media parts, and for which associated cached transcoding profiles match said transcoding profile;

(7) retrieving available cached source media files, corresponding to those individual said one or more media parts for which cached media files are available but for which associated cached transcoding profiles do not match said transcoding profile;

(8) transcoding the retrieved cached source media files into corresponding adapted media files in accordance with said transcoding profile;

(9) transcoding remaining said one or more media parts, for which corresponding cached media files or cached source media files have not been found in the steps (6) and (7), into corresponding adapted media files in accordance with said transcoding profile;

(10) forming an adapted multimedia message comprising an adapted message body having the retrieved cached available media files from the step (6), the adapted media files from the steps (8) and (9); and

(11) forwarding the adapted multimedia message to the destination device.

16. The system of claim 15, wherein the computer readable instructions (3) further cause the processor to remove or modify a media part of the message body.

17. The system of claim 16, wherein the computer readable instructions further cause the processor to generate a key for indexing enhancement settings used to remove or modify the media part of the message body.

18. The system of claim 15, the computer readable instructions (10) further cause the processor to merge two or more media parts corresponding to two or more said retrieved cached media files or said adapted media files.

19. The system of claim 18, wherein the computer readable instructions further cause the processor to generate a key for indexing enhancement settings used to merge the two or more media parts.

21. The system of claim 15, wherein the computer readable instructions further cause the processor to generate respective unique keys for indexing the respective cached adapted media files, each unique key being formed as a combination of a signature of said each respective adapted media file and a signature of said transcoding profile.

22. The system of claim 15, wherein the computer readable instructions further cause the processor to generate a unique key for indexing the adapted message body, the unique key being formed as a combination of a signature of the adapted message body and a signature of said transcoding profile.

23. The system of claim 21, wherein each signature is a Message Digest 5 (MD5) signature.

24. The system of claim 22, wherein each signature is a Message Digest 5 (MD5) signature.

25. The system of claim 15, wherein the multimedia message is a Multimedia Messaging System (MMS) message.

26. A non-transitory computer readable storage medium having computer readable instructions stored thereon for execution by a processor causing the processor to:

forward a multimedia message, comprising a message body having one or more media parts, to a destination device, comprising;

(1) determining a transcoding profile corresponding to capabilities of the destination device;

(2) provided the message body matches a cached message body and the transcoding profile matches a cached transcoding profile;

(3) retrieving the cached message body; and

(4) forwarding the multimedia message comprising the retrieved cached message body to the destination device;

otherwise;

(5) processing said one or more media parts of the message body, comprising;

(6) retrieving available cached media files transcoded from respective source media files, which individually correspond to those said one or more media parts, and for which associated cached transcoding profiles match said transcoding profile;

(7) retrieving available cached source media files, corresponding to those individual said one or more media parts for which cached media files are available but for which associated cached transcoding profiles do not match said transcoding profile;

(8) transcoding the retrieved cached source media files into corresponding adapted media files in accordance with said transcoding profile;

(9) transcoding remaining said one or more media parts, for which corresponding cached media files or cached source media files have not been found in the steps (6) and (7), into corresponding adapted media files in accordance with said transcoding profile;

(10) forming an adapted multimedia message comprising an adapted message body having the retrieved cached available media files from the step (6), the adapted media files from the steps (8) and (9); and

(11) forwarding the adapted multimedia message to the destination device.