USE CAMERA TO AUGMENT INPUT FOR PORTABLE ELECTRONIC DEVICE

摘要

Systems and methods are provided for controlling a portable electronic device (102, 202). The device includes a built-in image capturing device (104, 204). The system detects, through the image capturing device, motions of a user's finger (106) over the image capturing device. The system determines a pattern of the detected motions using timing information related to the detected motions (916), and controls the portable electronic device based on the determined pattern (822). The system also receives inputs from other input devices (108-114) associated with the portable electronic device, and controls the device based on combination of the determined pattern and the received inputs (918).