Patent ID: 8890817
Filing Date: 2014-11-18
Classification: G06F

Abstract:
1. A method of centralized processing of touch information from a plurality of touch sensing controllers, each touch sensing controller including a plurality of sense channels each for receiving a sense signal from a corresponding sense line of a touch sensing surface, the method comprising: obtaining touch information from one or more sense channels receiving the sense signals in at least one of the touch sensing controllers, wherein the touch information includes information of an amount of touch at one or more locations on the touch sensing surface; storing the touch information from the one or more sense channels in a corresponding memory of at least one of the touch sensing controllers; determining a validity of each of the plurality of sense channels of the at least one touch sensing controller; transmitting the touch information from the at least one touch sensing controller to a processor external to the at least one touch sensing controller based on a result of the validity determinations, wherein the touch information from at least one valid sense channel is transmitted while the touch information from at least one invalid sense channel is excluded from the transmission; and processing the transmitted touch information by the processor, wherein determining the validity includes determining whether or not a sense channel received a sense signal, wherein a sense channel that received a sense signal is a valid sense channel, and a sense channel that did not receive a sense signal is an invalid sense channel.