| 摘要 |
A capacitive touch-enabled printed article, such as a magazine, is disclosed. The printed article comprises at least one capacitive touch switch (13), a controller (17) connected to the at least one capacitive touch switch and a photodetector (19) connected to the controller. The photodetector has a light-sensing face. The controller is operable in first and second states. The controller is configured to poll the photodetector and, in response to determining that the light- sensing face is not exposed to light, to operate in the first state and, in response to determining that the light-sensing face is exposed to light, to operate in the second state. |
