Vehicle Parameter Infrastructure Security Strategy
First Claim
1. A method for improving integrity in data representing a plurality of condition states of a variable, the method comprising the steps of:
- (a) determining which condition states are operationally incompatible with one another; and
(b) generating an array of transformed integer values comprising a separate integer value for each condition state, such that the transformed integer value for each condition state in binary form is at least two bit errors removed from any transformed integer value for an identified incompatible condition state in binary form.
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Abstract
A method and apparatus is provided for improving integrity in data representing a plurality of condition states of a variable, comprising the steps of determining which condition states are operationally incompatible with one another, and generating an array of transformed integer values comprising a separate integer value for each condition state. The transformed integer value for each condition state in binary form is at least two bit errors removed from any transformed integer value for an identified incompatible condition state in binary form.
16 Citations
20 Claims
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1. A method for improving integrity in data representing a plurality of condition states of a variable, the method comprising the steps of:
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(a) determining which condition states are operationally incompatible with one another; and (b) generating an array of transformed integer values comprising a separate integer value for each condition state, such that the transformed integer value for each condition state in binary form is at least two bit errors removed from any transformed integer value for an identified incompatible condition state in binary form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for improving integrity in data representing a plurality of condition states of a plurality of variables, the variables including at least a vehicle power mode variable (with condition states including at least power off, run, accessory, and crank), an engine run status variable (with condition states including at least not running, running and idling, and running and not idling), and a transmission gear status variable (with condition states including at least reverse and any gear except reverse), and wherein the method comprises the steps of:
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(a) determining which condition states are operationally incompatible with one another; and (b) generating an array of transformed integer values comprising an integer value for each condition state, such that; the transformed integer values are different for each condition state of the power mode variable; the transformed integer values are different for each condition state of the engine run status variable; the transformed integer values are different for each condition state of the transmission gear status variable; and the transformed integer value for each condition state in binary form is at least two bit errors removed from any transformed integer value for an identified incompatible condition state in binary form. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An apparatus for improving integrity in data representing a plurality of condition states of a variable, the apparatus comprising:
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means for determining which condition states are operationally incompatible with one another; and means for generating an array of transformed integer values comprising a separate integer value for each condition state, such that the transformed integer value for each condition state in binary form is at least two bit errors removed from any transformed integer value for an identified incompatible condition state in binary form. - View Dependent Claims (18, 19, 20)
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Specification