Multi-user multi-touch projected capacitance touch sensor with event initiation based on common touch entity detection

An interactive digital display for implementing a dual-user touch-based security interface comprising:

• a touch sensor;
• and
• a memory storing an application that is configured to cause the interactive digital display to operate in a multiple touch-entity interaction mode, wherein the multiple touch-entity interaction mode is configured to be initiated based on a failure to detect an anti-ghost between a first touch and a second touch, and wherein in the multiple touch-entity interaction mode, the application is configured to:
• display, on a display of the interactive digital display,
• a first user interface responsive to determining that the first touch is associated with a first user;
• receive, via the first user interface, a first security code from the first user;
• display, on the display of the interactive digital display,
• a second user interface responsive to determining that the second touch is associated with a second user;
• receive, via the second user interface, a second security code from the second user;
• authenticate the first user and the second user based on the first security code and the second security code;
• determine a first position of the first touch on the display of the interactive digital display, wherein the first user interface is configured to display first content based on the first position;
• determine a second position of the second touch on the display of the interactive digital display, wherein the second user interface is configured to display second content based on the second position, wherein the first position and the second position are determined based on a location of an electrode of the touch sensor;
• determine another first position of the first touch on the display;
• and
• determine another second position of the second touch on the display, wherein a single user interface is configured to display content based on the another first position and the another second position, wherein the another first position and the another second position are determined based on another location of another electrode of the touch sensor.

A method for implementing an interactive map in interactive digital signage comprising a touch sensor and a memory storing an application that is configured to cause the interactive digital signage to operate in one of a multiple touch-entity interaction mode or a common touch entity interaction mode, the method comprises:

• wherein the multiple touch-entity interaction mode is configured to be initiated based on a failure to detect an anti-ghost between a first touch and a second touch, and wherein in the multiple touch-entity interaction mode, the application is configured to:
• display a first user interface on a display of the interactive digital signage;
• display a second user interface on the display of the interactive digital signage;
• and
• determine a first position of the first touch on the display of the interactive digital signage, wherein the first user interface is configured to display first content based on the first position;
• and
• determine a second position of the second touch on the display of the interactive digital signage, wherein the second user interface is configured to display second content based on the second position, wherein the first position and the second position are determined based on a location of an electrode of the touch sensor;
• and
• wherein the common touch entity interaction mode is configured to be initiated based on detection of the anti-ghost between the first touch and the second touch, and wherein in the common touch entity interaction mode, the application is configured to:
• display a single user interface on the display of the interactive digital signage;
• determine another first position of the first touch on the display;
• and
• determine another second position of the second touch on the display, wherein the single user interface is configured to display content based on the another first position and the another second position, wherein the another first position and the another second position are determined based on another location of another electrode of the touch sensor.