Patent ID: 11862010
Assignee: UNIVERSAL ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A method performed by a controlling device having a plurality of input keys each comprising a switch for generating an activation signal when pressed by a user and a touch sensor for generating a touch data when touched by the user, the method comprising:
receiving a plurality of touch data from each one of a corresponding plurality of the plurality of input keys;
determining a one of the plurality of touch data that indicates a highest increase of a parasitic capacitance to ground value; and
transmitting to a smart device a first key id associated with a one of the corresponding plurality of the plurality of input keys from which is received the one of the plurality of touch data that indicates the highest increase of the parasitic capacitance to ground value.