Auto-synchronization of format definitions in a commutation/de-commutation system

• US 7,529,194 B2
• Filed: 08/05/2005
• Issued: 05/05/2009
• Est. Priority Date: 08/05/2005
• Status: Expired due to Fees

• Current Assignee: North South Holdings Incorporated (Spherix Incorporated)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Stultz, Robert D., Galluscio, Anthony P., Knazik, Robert J.
• Primary Examiner(s): Jung; Min
• Application Number:
  US11/198,058
• Publication Number:
  US 20070030933A1
• Time in Patent Office: 1,369 Days
• Field of Search: 370/474, 370/476, 370/252, 370/465, 370/477, 370/522, 370/535, 726/27, 726/28, 726/29
• US Class Current: 370/252
• CPC Class Codes: H04L 1/0006 by adapting the transmission format
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A system and a method for dynamically synchronizing a client (110) to a data source (105). The method can include the step of dynamically selecting a first length of format data to correspond to an amount of bandwidth of a commutated bitstream (115) allocated for synchronization. At least a first portion of a first format definition can be transmitted in the commutated bitstream (115). A size of the first portion can correspond to the first length of format data. The method also can include transmitting a current sentinel (205) in the commutated bitstream (115), the current sentinel (205) identifying a current commutation format of the commutated bitstream (115). An indication (120) can be received from the client that indicates that the client requires the first format definition. The step of transmitting the first portion of the first format definition can be responsive to the client indication.

Claims

1. A method for dynamically synchronizing commutation format definitions of a client and a data source so that the client can de-commutate a commutated bitstream generated by the data source, comprising:

receiving at the data source at least one indicator indicating at least one commutation format definition that the client needs for de-commutating the commutated bitstream;

responsive to the received indicator, dynamically selecting a first length of format data to correspond to an amount of bandwidth of a portion of a first frame of the commutated bitstream allocated for commutation format definition synchronization;

inserting at least a first portion of the commutation format definition in the first frame; and

transmitting in the first frame the first portion of the commutation format definition;

wherein a size of the first portion of the commutation format definition corresponds to the first length of format data.

2. The method according to claim 1, further comprising transmitting a current sentinel in the commutated bitstream, the current sentinel identifying a current commutation format of the commutated bitstream.

3. The method according to claim 1, wherein said step of transmitting the first portion of the commutation format definition is responsive to said step of receiving the indicator from the client.

4. The method according to claim 1, further comprising:

subsequent to dynamically selecting the first length, dynamically selecting a second length of format data to correspond to an amount of bandwidth of a portion of a second frame of thea commutated bitstream allocated for commutation format definition synchronization; and

transmitting in the second frame of the commutated bitstream at least a second portion of the commutation format definition, a size of the second portion of the commutation format definition corresponding to the second length of format data.

5. The method according to claim 1, further comprising transmitting a cyclic sentinel in the commutated bitstream, the cyclic sentinel identifying at least one commutation format forthcoming for the commutated bitstream.

6. The method according to claim 5, further comprising:

receiving from the client an indication that the client requires a second commutation format definition correlating to the commutation format.

7. The method according to claim 6, further comprising:

responsive to said step of receiving from the client the indication, transmitting in the commutated bitstream at least a portion of the second commutation format definition.

8. The method according to claim 7, wherein a size of the portion of the second commutation format definition corresponds to the first length of format data.

9. The method according to claim 8, further comprising:

dynamically selecting a second length of format data to correspond to an amount of bandwidth of a portion of a second frame of the commutated bitstream allocated for commutation format definition synchronization, wherein the size of the portion of the second commutation format definition corresponds to the second length of format data.

10. A dynamically synchronized communication system, comprising:

a client;

a data source communicatively coupled to the client that receives at least one indicator indicating a first commutation format definition that the client needs for de-commutating a commutated bitstream, dynamically selects a first length of format data to correspond to an amount of bandwidth of a portion of a frame of the commutated bitstream allocated for commutation format definition synchronization, inserts at least a first portion of the first commutation formal definition first frame, and transmits in the first frame the first portion of the first commutation format definition,

wherein a size of the first portion of the first commutation format definition corresponds to the first length of format data.

11. The system of claim 10, wherein the data source transmits a current sentinel in the commutated bitstream, the current sentinel identifying a current commutation format of the commutated bitstream.

12. The system of claim 10, wherein the data source transmits the first portion of the first commutation format definition in response to receiving the indicator from the client.

13. The system of claim 10, wherein the data source performs at least one operation subsequent to dynamically selecting the first length to

dynamically selects a second length of format data to correspond to an amount of bandwidth of a portion of a second frame of the commutated bitstream allocated for commutation format definition synchronization, and

transmits in the second frame of the commutated bitstream at least a second portion of the first commutation format definition, a size of the second portion of the first commutation format definition corresponding to the second length of format data.

14. The system of claim 10, wherein the data source further transmits a cyclic sentinel in the commutated bitstream, the cyclic sentinel identifying at least one commutation format forthcoming for the commutated bitstream.

15. The system of claim 14, wherein the data source receives from the client an indication that the client requires a second commutation format definition correlating to the commutation format.

16. The system of claim 15, wherein the data source transmits in the commutated bitstream at least a portion of the second commutation format definition responsive to the indication.

17. The system of claim 16, wherein a size of the portion of the second commutation format definition corresponds to the first length of format data.

18. The system of claim 17, wherein the data source dynamically selects a second length of format data to correspond to an amount of bandwidth of a portion of a second frame of the commutated bitstream allocated for commutation format definition synchronization, wherein the size of the portion of the second format definition corresponds to the second length of format data.