Abstract: In some embodiments, a circuit may include a configurable logic module including a multiplexer. The multiplexer may include a plurality of data inputs configured to receive one or more bit strings. Each of the one or more bit strings may correspond to a logic operation. The multiplexer may further include a first control input configured to receive a first input signal, a second control input configured to receive a second input signal, and an output configured to provide an output signal corresponding to a selected logic operation based on the first input signal and the second input signal.

Abstract: In some embodiments, a circuit may include a configurable logic module including a multiplexer. The multiplexer may include a plurality of data inputs configured to receive one or more bit strings. Each of the one or more bit strings may correspond to a logic operation. The multiplexer may further include a first control input configured to receive a first input signal, a second control input configured to receive a second input signal, and an output configured to provide an output signal corresponding to a selected logic operation based on the first input signal and the second input signal.

Abstract: A method for finding local maxima in a two-dimensional array includes generating a row array for each row in the array and a column array for each column in the array. The values in a given generated row array are indicative of local maxima of values in the corresponding row, and values in a given generated column array are indicative of local maxima of values in the corresponding column. The method may also include the computer multiplying values in the generated row and column arrays to determine local maxima of the array.

Abstract: An integrated circuit includes a processor configured to receive position data corresponding to positions of objects relative to a touch-sensitive interface. The processor is configured to determine a first index point for the position data and a second index point of previous position data corresponding to previous positions of the objects relative to the touch-sensitive interface. The processor aligns the first and second index points and assigns an index to link the positions of the objects to the previous positions based on distances between the objects in the position data relative to the previous position data.

Abstract: A circuit includes an interface circuit configured to couple to a capacitive array of a touch screen and a driver circuit coupled to the interface circuit and configured to selectively provide signals to the interface circuit. The circuit further includes at least one sensor coupled to the interface circuit for detecting when a change in a capacitance of one a plurality of capacitances associated with the capacitive array exceeds a baseline threshold. The circuit further includes a control circuit coupled to the driver circuit and to the at least one sensor and configured to determine a fluctuation of the capacitance over a period of time. The control circuit determines that the change is caused by unwanted matter when the fluctuation is less than or equal to a noise threshold and by a user input when the fluctuation exceeds the noise threshold.