Patent ID: 7515995

Claim:
A redundant control system including at least three redundant signals, comprising: at least three failure circuits, each individual one of said at least three failure circuits being associated with an individual one of said at least three redundant signals, said failure circuit generating a failure signal in response to an occurrence of a failure of a corresponding one of the redundant signals; a first select circuit associated with each of the redundant signals, said first select circuit receptive to a default signal associated with the corresponding one of the redundant signals, to said failure signal, and to the corresponding one of the redundant signals, said first select circuit selecting said default signal when said failure signal indicates a failure of the corresponding one of the redundant signals, said first select circuit selecting the corresponding one of the redundant signals when said failure signal does not indicate a failure for the corresponding one of the redundant signals; and a median determination circuit receptive to said default signals selected and the redundant signals selected to determine a median signal indicative of a median of said default signals selected and the redundant signals selected.