Synchronous collapsed ring architecture for real-time signal switching and distribution

• US 7,689,123 B2
• Filed: 10/26/2007
• Issued: 03/30/2010
• Est. Priority Date: 07/13/2000
• Status: Expired due to Fees

• Current Assignee: L-3 Communications Integrated Systems LP (L3Harris Technologies, Inc.)
• Original Assignee: L-3 Communications Integrated Systems LP (L3Harris Technologies, Inc.)
• Inventors: Parker, Steven E.
• Primary Examiner(s): SEDIGHIAN, REZA
• Application Number:
  US11/977,784
• Publication Number:
  US 20080056718A1
• Time in Patent Office: 886 Days
• Field of Search: 398/66, 398/58, 398/59, 398/61, 398/63, 398/75, 398/67, 398/70, 398/71, 398/3, 398/4, 398/72, 342/22, 342/52, 342/53, 342/54, 342/55, 342/57, 725/119, 725/118, 725/120, 725/135, 725/62, 725/63, 725/73, 725/86, 725/91, 725/105, 725/114, 455/3.01, 455/3.05, 455/3.06, 455/403, 455/553.1, 370/324, 370/350, 370/452, 370/503, 370/58, 370/59, 370/61, 370/66, 370/70, 370/71, 370/72
• US Class Current: 398/70
• CPC Class Codes: H04L 12/6418 Hybrid transport

Abstract

A method and system includes at least one interconnect hub, connecting the at least one interconnect hub to a plurality of audio connection devices to form a network of audio connection devices with the interconnect hub at the center of the ring. The audio connection devices are connected to each other through the at least one interconnect hub, and data is synchronously transmitted between at least two of the audio connection devices through the at least one interconnect hub.

Claims

1. A method of communicating data among a plurality of devices, comprising:

providing at least one interconnect hub having a plurality of ports;

providing a plurality of connection devices each of which is configured to connect to one or more signal sources;

physically connecting the connection devices to the ports on the interconnect hub to form a network having a physical star configuration with the interconnect hub as a center;

logically connecting the connection devices using the interconnect hub to form a logical ring configuration within the interconnect hub so that each connection device has access to each digital data packet sent by any other connection device as it passes around the logical ring within the interconnect hub;

providing a second counter-rotating logical ring within the interconnect hub for communication of digital data packets;

communicating digital data packets between the connection devices through the interconnect hub using synchronous communications based upon a common clock signal, wherein at least a portion of the digital data packets include data representing signals from the signal sources; and

automatically bypassing inactive ports in the interconnect hub.

2. The method of claim 1, wherein the communicating step comprising communicating digital data packets between the connection devices using data frames passed around the logical ring in designated time slots.

3. The method of claim 2, wherein the communicating step comprises transmitting the data frames around the ring network at a rate of at least 8 KHz.

4. The method of claim 1, further comprising receiving analog signals at one or more of the connection devices, and digitizing the analog signals to form digital data signals for the communicating step.

5. The method of claim 1, further comprising controlling each connection device utilizing control panel individually coupled to the connection device.

6. The method of claim 1, further comprising communicating at least in part digital data packets including data representing audio signals from the signals sources to the connection devices.

7. The method of claim 1, further comprising communicating at least in part digital data packets including data representing video signals from the signals sources to the connection devices.

8. The method of claim 1, further comprising communicating at least in part digital data packets including message data between at least two connection devices.

9. The method of claim 8, where the message data comprises commands, and further comprising allowing one connection device to control another connection device through at least one command.

10. A communications system, comprising:

an interconnect hub having a plurality of ports; and

a plurality of connection devices coupled to the ports on the interconnect hub, each connection device being configured to be connected to one or more signal sources;

port bypass circuitry coupled to each port of the interconnect hub to allow inactive ports to be bypassed;

wherein the interconnect hub and connection devices are physically connected to form a physical star configuration with the interconnect hub as a center;

wherein the connection devices are logically connected through the interconnect hub to form a logical ring configuration within the interconnect hub so that each connection device has access to each digital data packet sent by any other connection device as it passes around the logical ring within the interconnect hub;

wherein a second counter-rotating logical ring is provided for communication of digital data packets within the interconnect hub;

wherein communications of digital data packets between the connection devices through the interconnect hub are configured to utilize synchronous communications based upon a common clock signal;

wherein at least a portion of the digital data packets include data representing signals from one or more signal sources; and

wherein inactive ports in the interconnect hub are automatically bypassed.

11. The communications system of claim 10, wherein at least one connection device is configured to convert analog signals from the signal sources to digital data signals.

12. The communications system of claim 10, wherein the interconnect hub is configured to communicate digital data packets using data frames passed around the logical ring in designated time slots.

13. The communications system of claim 12, wherein the data frames are communicated around the ring network at a rate of at least 8 KHz.

14. The communications system of claim 10, wherein the interconnect hub comprises a plurality of fiber optic network connections for the plurality of connection devices.

15. The communications system of claim 10, wherein the interconnect hub comprises dual counter rotating fiber optic rings for single point failure protection.

16. The communications system of claim 15, wherein the fiber optic network connections provide a fiber optic concentrated ring having a plurality of subloops equal in number to the plurality of connection devices, wherein each subloop couples to at least one of the connection devices.

17. The communications system of claim 16, wherein the interconnect hub further comprises a plurality of ports individually coupled to a subloop of the fiber optic concentrated ring.

18. The communications system of claim 10, further comprising a plurality of control panels individually coupled to the plurality of connection devices.

19. The communications system of claim 10, wherein the digital data packets comprise at least in part data representing audio signals from the signals sources to the connection devices.

20. The communications system of claim 10, wherein the digital data packets comprise at least in part data representing video signals from the signals sources to the connection devices.

21. The communications system of claim 10, wherein the digital data packets comprise at least in part data representing message data between at least two connection devices.

22. The communications system of claim 21, where the message data comprises at least one command from a first connection device to a second connection device, the command allowing the first connection device to control the second connection device.