Systems and methods for robust representation of ternary data states
OwnerKerfegar Katrak, Paul Bauerleinventors
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Abstract
Systems, methods and devices are described for robustly determining a desired operating state of a controlled device in response to the position of a multi-position actuator. Two or more ternary switch contacts provide input signals representative of the position of the actuator. Control logic then determines the desired state for the controlled device based upon the input signals received. The desired operating state is determined from any number of operating states defined by the ternary input values. Robustness is provided by selecting each of the operating states such that transitions between any operating states to another result from changes in each of the first and second ternary input values.
Claims34
A robust control system for placing a controlled device into a desired operating state in response to a position of a multi-position actuator, the system comprising:
- a first switch coupled to the multi-position actuator and configured to provide a first ternary input value (Input1) as a function of the state of the multi-position actuator;
- a second switch coupled to the multi-position actuator and configured to provide a second ternary input value (Input2) as a function of the state of the multi-position actuator;
- and
- control logic configured to receive the first and second inputs and to determine the desired state for the controlled device based upon the first and second inputs received, wherein the desired operating state is determined from a plurality of operating states described at least in part by the first and second ternary input values, and wherein each of the plurality of operating states are selected such that transitions between any of the plurality of operating states require changes in each of the first and second ternary input values.
A method of selecting a desired state in a controlled device in response to the position of a multi-position actuator, the method comprising the steps of:
- receiving a plurality of ternary input signals from the multi-position actuator;
- decoding the plurality of ternary input signals to determine the desired state of the controlled device from a plurality of operating states, wherein each of the plurality of operating states is described by the first and second ternary input values, and wherein each of the plurality of operating states is selected such that transitions between any of the plurality of operating states require changes in at least two of the ternary input signals;
- and
- transmitting a signal to the controlled device to place the controlled device into the desired state.
Dependencies are inferred from the claim text.