VWS secure/non-secure bypass switch

• US 8,103,169 B2
• Filed: 02/11/2009
• Issued: 01/24/2012
• Est. Priority Date: 12/11/2002
• Status: Expired due to Fees

• Current Assignee: 3e Technologies International, Inc. (Ultra Electronics Holdings PLC)
• Original Assignee: Criticom Critical Communications
• Inventors: Winegard, Robert
• Primary Examiner(s): CURS, NATHAN M
• Application Number:
  US12/369,540
• Publication Number:
  US 20090147069A1
• Time in Patent Office: 1,077 Days
• Field of Search: 398/45, 398/55, 398/115, 398/141, 307/132.E, 340/644, 348/14.08, 375/352, 385/22, 725/26
• US Class Current: 398/141
• CPC Class Codes: H04K 1/00 Secret communication
• CPC Class Codes: H04L 9/00 Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q

Abstract

Disclosed is a secure/non-secure bypass switch, which includes a secure mode signal path, and a non-secure mode signal path, wherein signals are routed through an encryption device connected in the secure mode signal path when no power is supplied to the switch, and the signals are routed through the non-secure path when power is supplied to the switch.

Claims

1. A system having a secure/non-secure bypass switch, comprising:

a secure mode signal path of the switch; and

a non-secure mode signal path of the switch,

wherein videoconferencing signals are routed from the switch to an external encryption device connected in the secure mode signal path before returning to the switch when no power is supplied to the switch, and the signals are routed internally through the non-secure path when power is supplied to the switch; and

wherein a first side of the switch connected to an inverse multiplexer has no direct connection to a second side of the switch connected to a codec when no power is supplied to the switch.

2. A secure/non-secure videoconferencing signal bypass method in a system having a secure/non-secure bypass switch with a secure path and a non-secure path, comprising the steps of:

when no power is supplied to the secure/non-secure bypass switch, routing videoconferencing signals from the secure/non-secure bypass switch to an external encryption device connected in the secure path before returning to the secure/non-secure bypass switch; and

when power is supplied to the secure/non-secure bypass switch, routing videoconferencing signals internally through the non-secure path;

wherein a first side of the switch connected to an inverse multiplexer has no direct connection to a second side of the switch connected to a codec when no power is supplied to the switch.