Method of deactivating device lock state, and electronic device

Details Method of deactivating device lock state, and electronic device Method of deactivating device lock state, and electronic device

2007-11-06

2007-11-06

Nguyen, Kevin M. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C380S205000, C726S018000

Reexamination Certificate

active

10665869

ABSTRACT:
An electronic device comprises a touch screen and is configured to enter a lock state upon the fulfilment of a predetermined condition. The device is configured to display one or more images on the touch screen when the device is in the lock state, of which images one or more includes at least one predetermined point. The device is further configured to detect a touch on a predetermined point in one or more images and to deactivate the device lock state upon detection of a predetermined number of touches on successive images including a predetermined point.

REFERENCES:
patent: 5559961 (1996-09-01), Blonder
patent: 6720860 (2004-04-01), Narayanaswami
patent: 6862687 (2005-03-01), Suzuki
patent: 2002/0029341 (2002-03-01), Juels et al.
patent: 2005/0253817 (2005-11-01), Rytivaara et al.
patent: 11203045 (1999-07-01), None
patent: 2002-082734 (2002-03-01), None
patent: WO 99/21073 (1999-04-01), None
patent: WO 01/77792 (2001-10-01), None

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