Dynamically provided content processor for transcoded data types at intermediate stages of transcoding process

• US 6,615,212 B1
• Filed: 08/19/1999
• Issued: 09/02/2003
• Est. Priority Date: 08/19/1999
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Dutta, Rabindranath, Rutkowski, Matthew Francis
• Primary Examiner(s): CHANNAVAJJALA, SRIRAMA T
• Application Number:
  US09/377,639
• Time in Patent Office: 1,475 Days
• Field of Search: 707/1-5, 707/100-104, 707/200-206, 707/10, 707/500-501, 707/511-513, 707/522-523, 709/200-248, 709/313, 709/305
• US Class Current: 1/1
• CPC Class Codes: G06F 16/258 Data format conversion from or to a database
• CPC Class Codes: G06F 16/9577 Optimising the visualization of content, e.g. distillation of HTML documents
• CPC Class Codes: H04L 67/289 Intermediate processing functionally located close to the data consumer application, e.g. in same machine, in same home or in same sub-network
• 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 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99942 Manipulating data structure, e.g. compression, compaction, compilation
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing

Abstract

A method in a data processing system for providing content from a distributed database to a client. In a preferred embodiment, a transcoding proxy server receives a request for content from a client machine. The transcoding proxy server retrieves the content from an originating server. The retrieved content is provided in a first format type. In response to a determination that an increase in efficiency would be obtained by allowing the client to process the content in the first format type prior to transcoding the content into a second format type, the transcoding proxy server sends the content to the client in the first format type. Furthermore, in response to a determination that the client does not have content processing software for processing the content in the first format, the transcoding proxy server sends content processing software for the first format type along with the content in the first format type to the client. The transcoding proxy server then transcodes the content from the first format type into the second format type and sends the content in the second format to the client.

Claims

1. A method in a data processing system for providing content from a distributed database to a client, comprising the steps of:

receiving, at a server, a request for content;

retrieving the content in a first format;

responsive to a determination that an increase in efficiency would be obtained by allowing the client to process the content in the first format prior to transcoding the content into a second format, sending the content to the client in the first format; and

responsive to a determination that the client does not have content processing software for the first format, sending the content processing software for the first format along with the content in the first format.

2. The method as recited in claim 1, further comprising transcoding the content from the first format into the second format.

6. The method as recited in claim 2, further comprising, responsive to a request from the client canceling the request for the content in the second format, stopping the transcoding.

3. The method as recited in claim , further comprising sending the content in the second format to the client.

4. The method as recited in claim 3, further comprising, responsive to a determination that the client does not have a content analyzer for the second format, sending a content analyzer for the second format in the client.

5. The method as recited in claim 3, further comprising processing the content on the client while awaiting the content in the second format.

7. A computer program product in a computer readable media for use in a data processing system for providing content from a distributed database to a client, the computer program product comprising:

first instructions for receiving, at a server, a request for content;

second instructions for retrieving the content in a first format;

third instructions, responsive to a determination that an increase in efficiency would be obtained by allowing the client to process the content in the first format prior to transcoding the content into a second format, for sending the content to the client in the first format; and

fourth instructions, responsive to a determination that the client does not have content processing software for the first format, for sending the content processing software for the first format along with the content in the first format.

8. The computer program product as recited in claim 7, further comprising fifth instructions for transcoding the content from the first format into the second format.

9. The computer program product as recited in claim 8, further comprising sixth instructions for sending the content in the second format to the client.

10. The computer program product as recited in claim 9, further comprising seventh instructions, responsive to a determination that the client does not have a content analyzer for the second format, for sending a content analyzer for the second format to the client.

11. The computer program product as recited in claim 9, further comprising seventh instructions for processing the content on the client while awaiting the content in the second format.

12. The computer program product as recited in claim 8, further comprising sixth instructions, responsive to a request from the client canceling the request for the content in the second format, for stopping the transcoding.

13. A system for providing content from a distributed database to a client, comprising:

means for receiving, at a server, a request for content;

means for retrieving the content in a first format;

means, responsive to a determination that an increase in efficiency would be obtained by allowing the client to process the content in the first format prior to transcoding the content into a second format, for sending the content to the client in the first format; and

means, responsive to a determination that the client does not have content processing software for the first format, for sending the content processing software for the first format along with the content in the first format.

14. The system as recited in claim 13, further comprising means for transcoding the content from the first format into the second format.

15. The system as recited in claim 14, further comprising means for sending the content in the second format to the client.

16. The system as recited in claim 15, further comprising means, responsive to a determination that the client does not have a content analyzer for the second format, for sending a content analyzer for the second format to the client.

17. The system as recited in claim 15, further comprising means for processing the content on the client while awaiting the content in the format.

18. The system as recited in claim 14, further comprising means, responsive to a request from the client canceling the request for the content in the second format, for stopping the transcoding.

19. A method in a data processing system for processing a request for a document, the method comprising the data processing system implemented steps of:

receiving a request for a document from a client;

obtaining the document in a first format; and

responsive to a determination that the client is unable to process the document in the first format, sending a document in the first format with computer implemented instructions for processing the document in the first format.

20. The method of claim 19, further comprising:

determining whether and increase on performance will occur at the client by sending the document in the first format with computer implemented instructions for processing the document in the first format; and

responsive to a determination that an increase in performance will occur at the client, enabling the sending step.

21. The method claim 19, further comprising:

transcoding the document into a second format; and

sending the document to the client in the first format, wherein the computer implemented instructions will halt the processing of the document in the first format if the document is received by the client in the second format prior to completing processing of the document in the first format with the computer implemented instructions.

22. The method of claim 19, wherein the document in the first format is a postscript file.

23. The method of claim 19, wherein the document in the first format is an XML page, and wherein the document in the second format is an HTML page.

24. A data processing system for processing a request for a document, the system comprising:

means for receiving a request for a document from a client;

means for obtaining the document in a first format; and

means, responsive to a determination that the client is unable to process the document in the first format, for sending a document in the first format with computer implemented instructions for processing the document in the first format.

25. The data processing system of claim 24, further comprising:

means for determining whether an increase in performance will occur at the client by sending the document in the first format with computer implemented instructions for processing the document in the first format; and

means, responsive to a determination that an increase in performance will occur at the client, for enabling the sending step.

26. The data processing system of claim 24, further comprising:

means for transcoding the document into as second format; and

means for sending the document to the client in the first format, wherein the computer implemented instructions will halt the processing of the document in the first format if the document is received by the client in the second format prior to completing processing of the document in the first format with the computer implemented instructions.

27. The data processing system of claim 24, wherein the document in the first format is a postscript file.

28. The data processing system of claim 24, wherein the document in the first is an XML page, and wherein the document in the second format is an HTML page.

29. A computer program product in a computer readable media for use in a data processing system for processing a request for a document, comprising:

first instructions for receiving a request for a document from a client;

second instructions for obtaining the document in a first format; and

third instructions, responsive to a determination that the client is unable to process the document in the first format, for sending the document in the first format with computer implemented instructions for processing the document in the first format.

30. The computer program product of claim 29, further comprising:

fourth instructions for determining whether an increase in performance will occur at the client by sending the document in the first format with computer implemented instructions for processing the document in the first format; and

fifth instruction, responsive to a determination that an increase in performance will occur at the client, for enabling the sending step.

31. The computer program product of claim 29, further comprising:

fourth instructions for transcoding the document into as second format; and

fifth instructions for sending the document to the client in the first format, wherein the computer implemented instructions will halt the processing of the document in the first format if the document is received by the client in the second format prior to completing processing of the document in the first format with the computer implemented instructions.

32. A method in a data processing system for providing content from a distributed database to a client, comprising the steps of:

receiving, at a server, a request for content;

retrieving the content in a first format;

transcoding the content from the first format into at least one intermediate format;

transcoding the content form the intermediated format into the requested format; and

responsive to a determination that an increase in efficiency would be obtained by allowing the client to process the content in the intermediated format prior to transcoding the content into the requested format, sending the content to the client in the intermediate format.

33. The method as recited in claim 32, further comprising sending the content in the requested format to the client.

34. The method as recited in claim 32, wherein the at least one intermediate format is a plurality of intermediate formats, and further comprising, responsive to a determination that an increase in efficiency would be obtained by allowing the client to process the content in any of the intermediated formats prior to transcoding the content into the requested format, sending the content to the client in one of the intermediated formats.

35. The method as recited in claim 32, further comprising transcoding the content from the intermediate format into the requested format on the client machine.

36. The method as recited in claim 35, further comprising canceling the request to the server for the content in the requested format if the transcoding on the client machine is completed prior to receiving the content in the requested format from the server.