Patent ID: 8681977
Filing Date: 2014-03-25
Classification: H04N

Abstract:
1. A system for enabling/disabling Display Data Channel (DDC) access to enable/disable a security protocol, the system comprising: at least one source; at least one sink; and a switcher device communicatively coupled in-between the at least one source and the at least one sink, the switcher device comprises: a multiplexer coupled in-between at least one input and output cards and configured to transmit an audiovisual signal from the at least one input card to a first and at least a second output card via a physical; wherein the multiplexer is configured to dynamically switch between the first and at least second output card based on a user control signal that activates one of the at least one sinks, wherein each of the output cards is coupled to the at least one sink; wherein the input card comprises: