Patent ID: 7953536

Claim:
A method of cross-checking values of data for at least one variable transmitted in a system comprising a first processor, a second processor, a first source of values for the variable, and a second source of values for the variable, the method comprising the steps of: transmitting one or more first values for the variable from the first source of values for the variable to the first processor; transmitting one or more second values for the variable from the second source of values for the variable to the first processor; transmitting one or more third values for the variable from the first source of values for the variable to the second processor; transmitting one or more fourth values for the variable from the second source of values for the variable to the first processor; comparing the one or more first values for the variable with the one or more third values for the variable; comparing the one or more second values for the variable with the one or more third values for the variable; and comparing the one or more second values for the variable with the one or more fourth values for the variable.