Patent ID: 9019224
Filing Date: 2015-04-28
Classification: G06F

Abstract:
1. A low-latency touch sensitive device comprising: first and second plurality of conductors being arranged such that: signal generator adapted to generate a plurality of unique orthogonal signals, each unique orthogonal signal being orthogonal to each of the other unique orthogonal signals and each unique orthogonal signals being a sinusoidal orthogonal signal that is pre-selected so as to have no simple harmonic relationship with the other sinusoidal signals; transmitter associated with the first plurality of conductors, the transmitter being adapted to transmit each of the plurality of unique orthogonal signals on each of the first plurality of conductors simultaneously; receiver associated with the second plurality of conductors, the receiver being adapted to receive signals present on each of the second plurality of conductors; and signal processor being adapted to decode the signals present on each of the second plurality of conductors, and for each of the signals present on each of the second plurality of conductors to determine which of the unique orthogonal signals form a non-negligible part thereof.