Seiko Epson Corporation

Manfred Wittmeir

Barinder Singh Rai

John Peter Van Baarsen

Raymond Chow

George Lyons

Tetsuo Kawamoto

Tatiana Pavlovna Kadantseva

Ricardo Te Lim

Yosuke Tanikawa

Anand Kumar Anandabairavasamy

Eric Jeffrey

Apparatuses and methods are provided for determining whether a user intends to provide an input using an image of a control appearing on a surface. An apparatus may include first and second cameras to capture set and second sets of two or more images of the surface, and a unit to determine whether various conditions are true. A first condition is that a particular number of skin-color pixels are present within one cell of the two or more images. A cell location substantially coincides with the image of the control. A second condition is that the skin-color pixels persist for at least a particular time period. A third condition is that a region of skin-color pixels has a substantially rectangular shape. A fourth condition is that corresponding edges of skin-color pixels in the first and second sets of images are within a predefined offset distance. Additional conditions are disclosed.

Detecting user input provided to a projected user interface

This invention relates to methods and apparatus for detecting errors in transmitted data. In one embodiment, a method includes the steps of transmitting data, accumulating a transmit sum, receiving the data, accumulating a receive sum, comparing the transmit and receive sums; and evaluating the result of the comparison for determining a transmission accuracy metric.

Detecting errors in transmitted data

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Aichach, Germany

Manfred Wittmeir