Patent ID: 7286063
Filing Date: 2007-10-23
Classification: G06F

Abstract:
1. A method of input of a security code by means of a touch screen of an electronic device for access to a function, apparatus or given location, wherein the touch screen comprises control keys, which can be activated by manual action of a user using a finger or a stylus, each of the keys comprises at least one sensitive pad linked to a microprocessor unit of the electronic device, wherein each key of the touch screen defines a different number, wherein the electronic device is a wrist watch comprising: a liquid-crystal display; means for transmitting and/or receiving signals; and at least one control button to actuate various functions of the watch, wherein the control keys of the touch screen are activated when the control button is pressed, and wherein the liquid-crystal display indicates different operations of entry, verification and transmission of the security code, wherein the method comprises a first series of steps in an entry mode of the security code, the first series of steps comprising: a) placing a finger or stylus on a first key of the touch screen, wherein the first key represents a first number of the code to be entered; and b) moving the finger or stylus on the touch screen over a specific trajectory from the first key to a second key of the touch screen, wherein the second key represents a second number of the code to be entered, and wherein the microprocessor unit registers sensitive keys or pads activated during the movement of the finger or stylus on the screen from the first key to the second key to determine the security code based on the first number entered, the second number entered and the specific trajectory of the finger or stylus on the keys activated during movement of the finger or stylus.