Patent ID: 8754910

Claim:
A control device comprising: a control circuit; a first control button including a sensor operable to detect a button press of the first control button, wherein the sensor is coupled to the control circuit and is configured to send a control signal to the control circuit to signal the button press of the first control button, and wherein depressing the first control button causes the control circuit to toggle two control characteristics of the control device; a roller wheel configured to rotate, wherein the rotation of the roller wheel is associated with a first control characteristic of the control device including a first control function and a second control function, and wherein based on the control signal, the control circuit is configured to toggle between the first control function and the second control function; and a displacement sensor coupled to the control circuit and configured to detect movement of the displacement sensor relative to a work surface, wherein the displacement sensor is associated with a second control characteristic of the control device including a third control function and a fourth control function, and wherein based on the control signal, the control circuit is configured to toggle between the third control function and the fourth control function.