Patent ID: 7193548

Claim:
A switching arrangement comprising: a digital input comprising a first digital input portion and a second digital input portion; a digital output comprising a first digital output portion and second digital output portion; a switching element between the digital input and the digital output, the switching element having a first condition allowing the first digital output portion to correspond to the first digital input portion and the second digital output portion to correspond to the second digital input portion and a second condition allowing the first digital output portion to correspond to the second digital input portion and the second digital output portion to correspond to the first digital input portion; and a control arrangement to switch the switching element between the first condition and the second condition, wherein the control arrangement comprises analog processing elements; wherein the control arrangement has a first control input connected with the first digital input portion, a second control input connected with the second digital input portion, and a control output, the control output allowing the switching element to assume the second condition if the first digital input portion is different from the second digital input portion.