Tactual Labs Co.

Jonathan Deber

Daniel John Wigdor

Clifton L Forlines

Ricardo Jorge Jota Costa

Bruno Rodrigues De Araujo

Darren L Leigh

Steven Leonard Sanders

Disclosed are touch sensitive devices and methods of responding to hits in touch sensitive devices that include a graphical user interface having interface elements, each associated with a program element. A hit test map updater is used to process graphical user interface information into a hit test map in connection with the rendering of the graphical user interface, such that the hit test map associates properties with interface elements appearing on the graphical user interface. An input processor is used to receive a location corresponding to an input in connection with an input event, search the hit test map in which values are associated with interface elements appearing in the graphical user interface, and identify a property of the interface element from the values. In an embodiment, the identified property is proved to a central processing system and a user interface event is generated. In an embodiment, the properties received from the hit test map updater and the input processor are used to determine a program element associated with the property, and the program element is signaled. In an embodiment, the identified property is processed to determine a change to the graphical user interface, and the change is displayed.

System and method for performing hit testing in a graphical user interface

In an embodiment, a latency measuring head is provided for use in measuring touch-to-response latency in a test device, the test device including a capacitive user interface that responds to touch input. The latency measuring head includes a conductive element adapted to be positioned in static proximity with and/or in contact with the capacitive user interface. An electron sink is operatively connected to the conductive element via a normally open switch having an open and a closed position. The electron sink has capacity to hold or dissipate a sufficient charge to trigger a touch event on the test device when the switch is closed. A photosensitive element is positioned in static proximity with and/or in contact with the capacitive user interface such that the photosensitive element can output a signal in response to a change in an optical property of at least a portion of the capacitive user interface. Software for performing analysis of latency measurements from a latency measuring device and generating statistics that summarize latency performance of a test device is further disclosed.

Tool to measure the latency of touchscreen devices

Growing community of inventors

Toronto, Canada

Jonathan Deber