| 摘要 |
A bio-presence based keyguard mechanism for a portable device detects a situation where both a bio-presence sensor and a pressure or displacement sensor are engaged, and then selectively removes an associated keypad from a locked state and places the keypad in an unlocked state. In accordance with one aspect, the keyguard mechanism employs a method for transforming the status of a portable device keypad from a locked state to an unlocked state. Within the method, a signal is received from a pressure or displacement sensor associated with a particular key of the keypad, when the keypad is in a locked state. It is then determined whether a signal is received from a bio-presence sensor associated with the particular key, or with a particular portion of the keypad, within an allotted time period, and if so, the status of the keypad is changed to an unlocked state. |
