×

Remote control, link independent A/B switch box with diagnostic loopback

  • US 5,684,789 A
  • Filed: 06/29/1995
  • Issued: 11/04/1997
  • Est. Priority Date: 06/29/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. A switching system for connecting a plurality of destinations to one of a plurality of sources said system comprising:

  • a plurality of switch boxes, each of said plurality of switch boxes including a plurality of inputs, each of said plurality of inputs being connected to a different one of said plurality of sources, an output connected to one of said plurality of destinations, selecting means for connecting one of said plurality of inputs to said output, and a controller for controlling said selecting means;

    control means for controlling said plurality of switch boxes, said control means having a first port and a second port; and

    a plurality of interconnecting means for interconnecting said control means and each controller in said plurality of switch boxes in a circular chain;

    said control means including means for generating a command message, said command message including a command, means for sending said command message via said first port to each controller in said circular chain and means for receiving said command message via said second port after passing through each controller in said circular chain,each controller in said plurality of switch boxes including means for executing said command in said command message and means for passing said command message to a successive element in said circular chain.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×