Patent ID: 8915422

Claim:
A method comprising: (a) operating at least one processor, while an area of an input surface of a touch screen display device of an automated transaction machine is absent any output of visible indicia corresponding to user contact with the input surface by at least one of: (ai) a plurality of user fingers simultaneously contacting the area of the input surface; or (aii) a user finger drawing a character while contacting the area of the input surface; (b) operating the at least one processor to analyze the contact data received in (a) with regard to user input to the machine; and (c) operating the at least one processor responsive at least in part to the analysis in (b), to determine that the contact data received in (a) corresponds to user input of a particular alphanumeric character; wherein the particular alphanumeric character determined in (c) is not visible in the area of the input surface during (a).