US 12,293,050 B2
Touch capacitive surface with metadata for transmission
Nathaniel McFarland, Mableton, GA (US)
Assigned to CFA PROPERTIES, INC., Atlanta, GA (US)
Filed by CFA Properties, Inc., Atlanta, GA (US)
Filed on Jul. 21, 2023, as Appl. No. 18/356,453.
Application 18/356,453 is a continuation of application No. 17/199,035, filed on Mar. 11, 2021, granted, now 11,755,158.
Claims priority of provisional application 62/988,099, filed on Mar. 11, 2020.
Prior Publication US 2023/0367434 A1, Nov. 16, 2023
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0446 (2019.05) [G06F 3/0416 (2013.01); G06F 3/0447 (2019.05)] 7 Claims
OG exemplary drawing
 
1. A touch-capacitive surface system, comprising:
a plurality of touch surfaces positioned along a target body, wherein:
each of the plurality of touch surfaces comprises a capacitive surface and is coplanar to the target body; and
the target body comprises at least one of a wall, a window, a door, or a horizontal plane extending along a surface of an object;
a touch controller electrically coupled to each of the plurality of touch surfaces, wherein the touch controller is configured to:
provide a respective electrical signal to each of the plurality of touch surfaces;
detect a voltage change in the respective electrical signal responsive for a particular touch surface of the plurality of touch surfaces in response to a change in dielectric properties of the capacitive surface for the particular touch surface; and
transmit a touch event comprising metadata describing the particular touch surface, the metadata comprising a voltage delta;
a projection source; and
at least one computing device in communication with the touch controller and the projection source, the at least one computing device being configured to:
generate, via the projection source, projected content at least partially onto the target body;
receive the touch event over a network from the touch controller;
determine one of a plurality of effects based at least in part on the voltage delta, wherein:
respective effects are associated with different values of voltage delta; and
the different values of voltage delta are associated with contact between the particular touch surface and different materials in contact with the touch surface; and
update the projected content at least in part on the determined effect.