Abstract: A method for calibrating a touch screen. Method may be comprised of determining an area for a region suitable for receiving, excluding activations determined to be located within a defined distance from the outer edge of the area determined for the region, accumulating a pattern of activations for a centroid within the region, and tuning a calibration factor to reposition the centroid within the center of the region.

Abstract: A network includes a plurality of electronic control units (ECU) connected with each other and receiving messages via a bus, each message having an identifier portion and a data portion. An ECU processes messages by converting the message identifier to a hash value, comparing the hash value to a plurality of index values stored in a lookup table, the lookup table having relevance values corresponding to each index value, discarding the message if a corresponding relevance value indicates that the message is not relevant to the ECU, inserting the message into memory buffer if a corresponding relevance value indicates that the message is relevant to the ECU, and further processing only selected ones of the messages in the buffer. Preferably, the hash value has fewer data bits than that of the identifier portion of the messages, and the number of unique hash values is the same as a number of index values.