System and method for cross protocol communication

• US 20070242694A1
• Filed: 04/13/2006
• Published: 10/18/2007
• Est. Priority Date: 04/13/2006
• Status: Active Grant

• Current Assignee: directPacket Research, Inc.
• Original Assignee: directPacket Research, Inc.
• Inventors: Opsahl, Tom, Signaoff, Christopher, Signaoff, Justin, Riley, Edward
• Granted Patent: US 7,773,588 B2
• Time in Patent Office: Days
• US Class Current: 370/466
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561

Abstract

A multimedia communication system and method are described where a communication controller receives a multimedia data stream from a communication device in a first protocol. The controller detects a type of the first protocol, such as text-based protocol or a binary protocol and then converts the first protocol into an intermediate protocol. The multimedia data stream in this intermediate protocol is then transmitted to a second communication controller connected to the destination communication device. The multimedia data stream is then converted at the second communication controller from the intermediate protocol into a second protocol which is then used to transmit the multimedia data stream to the destination communication device.

Claims

1. A method for multimedia communication comprising:

receiving a multimedia data stream at a communication controller in a first protocol from a communication device;

detecting a type of said first protocol;

converting said first protocol into an intermediate protocol;

translating said intermediate protocol into a second protocol; and

transmitting said multimedia data stream in said second protocol to a target communication device.

2. The method of claim 1 further comprising:

communicating, prior to said translating, said multimedia data stream in said intermediate controller to a second communication controller connected to said target communication device;

wherein said translating and said transmitting are performed by said second communication controller.

3. The method of claim 1 wherein said converting comprises:

accessing a first protocol table responsive to said type, wherein said first protocol table includes a plurality of first protocol messages corresponding to a plurality of intermediate protocol messages;

selecting ones of said plurality of intermediate protocol messages that correspond to one or more first protocol messages found in said multimedia data stream; and

assembling said ones of said plurality of intermediate protocol messages to form said multimedia data stream in said intermediate protocol.

4. The method of claim 1 wherein said translating comprises:

determining a second protocol type associated with said target communication device;

accessing a second protocol table responsive to said second protocol type, wherein said second protocol table includes a plurality of second protocol messages corresponding to said plurality of intermediate protocol messages;

selecting ones of said plurality of second protocol messages that correspond to one or more intermediate protocol messages found in said multimedia data stream; and

assembling said ones of said plurality of second protocol messages to form said multimedia data stream in said second protocol.

5. The method of claim 4 further comprising:

retrieving said second protocol type from a device information base, wherein said device information base contains compatibility information for each device available for said multimedia communication.

6. The method of claim 1 wherein said first protocol comprises one of a text-based protocol and a binary protocol and wherein said second protocol comprises one of a binary protocol and a text-based protocol.

7. The method of claim 6 wherein said intermediate protocol comprises protocol messages common to said text-based protocol and said binary protocol.

8. A communication controller in a multimedia communication system, said communication controller comprising:

a message interface to transceive multimedia data from a communication endpoint in a first protocol;

a protocol signaler to determine a type of said first protocol;

a first protocol conversion table that contains a plurality of first protocol messages and a plurality of interim protocol messages, wherein said plurality of interim protocol messages correspond to ones of said plurality of first protocol messages;

a protocol conversion utility to convert said first protocol into an interim protocol using said first protocol conversion table; and

a network interface to transceive said multimedia data in said interim protocol to a target communication endpoint.

9. The communication controller of claim 8 wherein said protocol conversion utility converts said interim protocol of a received multimedia data stream into a second protocol and wherein said message interface transmits said received multimedia data stream in said second protocol to a destination endpoint connected to said communication controller.

10. The communication controller of claim 9 further comprising:

a second protocol conversion table that contains a plurality of second protocol messages and said plurality of interim protocol messages, wherein said plurality of interim protocol messages correspond to ones of said plurality of second protocol messages.

11. The communication controller of claim 9 further comprising:

an endpoint information base including compatibility data on one or more communication endpoints connected to said communication controller, wherein said compatibility data includes a device protocol type.

12. A method for multimedia communication comprising:

receiving a multimedia data stream at a communication controller in a first protocol from a communication device;

detecting a type of said first protocol;

converting said first protocol into an intermediate protocol;

translating said intermediate protocol into a second protocol; and

transmitting said multimedia data stream in said second protocol to a target communication device.

13. The method of claim 12 further comprising:

communicating, prior to said translating, said multimedia data stream in said intermediate controller to a second communication controller connected to said target communication device;

wherein said translating and said transmitting are performed by said second communication controller.

14. The method of claim 12 wherein said converting comprises:

accessing a first protocol table responsive to said type, wherein said first protocol table includes a plurality of first protocol messages corresponding to a plurality of intermediate protocol messages;

selecting ones of said plurality of intermediate protocol messages that correspond to one or more first protocol messages found in said multimedia data stream; and

assembling said ones of said plurality of intermediate protocol messages to form said multimedia data stream in said intermediate protocol.

15. The method of claim 12 wherein said translating comprises:

determining a second protocol type associated with said target communication device;

accessing a second protocol table responsive to said second protocol type, wherein said second protocol table includes a plurality of second protocol messages corresponding to said plurality of intermediate protocol messages;

selecting ones of said plurality of second protocol messages that correspond to one or more intermediate protocol messages found in said multimedia data stream; and

assembling said ones of said plurality of second protocol messages to form said multimedia data stream in said second protocol.

16. The method of claim 15 further comprising:

retrieving said second protocol type from a device information base, wherein said device information base contains compatibility information for each device available for said multimedia communication.

17. The method of claim 12 wherein said first protocol comprises one of a text-based protocol and a binary protocol and wherein said second protocol comprises one of a binary protocol and a text-based protocol.

18. The method of claim 17 wherein said intermediate protocol comprises protocol messages common to said text-based protocol and said binary protocol.

19. A computer program product having a computer readable medium with computer program logic recorded thereon for multimedia communication, said computer program product comprising:

code for receiving a multimedia data stream at a communication controller in a first protocol from a communication device;

code for detecting a type of said first protocol;

code for converting said first protocol into an intermediate protocol;

code for translating said intermediate protocol into a second protocol; and

code for transmitting said multimedia data stream in said second protocol to a target communication device.

20. The computer program product of claim 19 further comprising:

code for communicating, prior to execution of said code for translating, said multimedia data stream in said intermediate controller to a second communication controller connected to said target communication device;

wherein said code for translating and said code for transmitting are executed at said second communication controller.

21. The computer program product of claim 19 wherein said code for converting comprises:

code for accessing a first protocol table responsive to said type, wherein said first protocol table includes a plurality of first protocol messages corresponding to a plurality of intermediate protocol messages;

code for selecting ones of said plurality of intermediate protocol messages that correspond to one or more first protocol messages found in said multimedia data stream; and

code for assembling said ones of said plurality of intermediate protocol messages to form said multimedia data stream in said intermediate protocol.

22. The computer program product of claim 19 wherein said code for translating comprises:

code for determining a second protocol type associated with said target communication device;

code for accessing a second protocol table responsive to said second protocol type, wherein said second protocol table includes a plurality of second protocol messages corresponding to said plurality of intermediate protocol messages;

code for selecting ones of said plurality of second protocol messages that correspond to one or more intermediate protocol messages found in said multimedia data stream; and

code for assembling said ones of said plurality of second protocol messages to form said multimedia data stream in said second protocol.

23. The computer program product of claim 22 further comprising:

code for retrieving said second protocol type from a device information base, wherein said device information base contains compatibility information for each device available for said multimedia communication.

24. The computer program product of claim 19 wherein said first protocol comprises one of a text-based protocol and a binary protocol and wherein said second protocol comprises one of a binary protocol and a text-based protocol.

25. The computer program product of claim 24 wherein said intermediate protocol comprises protocol messages common to said text-based protocol and said binary protocol.