International Business Machines Corporation

Lenovo (singapore) Pte. Ltd.

Jian Zhong Li

Tao Jiang

Zhi Qiang Wei

Martin A Tiernan

Xiao Qing Zhang

John E Alsvig

Mark Sean Fleming

ZhenDe Fu

A device, method and computer program product are provided for unlocking a touchscreen. In response to entering a touchscreen unlocking interface, a slide-to-unlock button is displayed on a touchscreen at its initial position, wherein the slide-to-unlock button is divided into two portions. In response to pressing a first portion of the slide-to-unlock button and sliding the slide-to-unlock button along a specified trace, information about a position of the slide-to-unlock button on the specified trace is displayed on a second portion of the slide-to-unlock button. In response to performing a first action on the pressed first portion of the slide-to-unlock button, information about a position of the slide-to-unlock button on the specified trace when the first action is performed on the first portion of the slide-to-unlock button is received.

Privately unlocking a touchscreen

An electronic device can be unlocked by displaying, while the electronic device is in a locked state, on a touchscreen of the electronic device, line(s) dividing the touchscreen into input regions. Input gestures are detected on the touchscreen, and one of the input regions is identified as an input region containing the starting point of the input gesture. A base number is retrieved corresponding to the identified input region, and a numerical value of a password digit is calculated by using the base number and a numerical value corresponding to the input gesture. A sequence of thus calculated password digits is compared to a password stored within the electronic device, and the electronic device is unlocked following a match between the series of calculated password digits and the stored password.

Unlocking electronic devices with touchscreen input gestures

Growing community of inventors

Shanghai, China

Jian Zhong Li