Patent ID: 8226445

Claim:
A method of manufacturing an electronic key furnished with a USB standardized connector having a mechanical polarizer, said method comprising the steps of: forming a key body which includes a functional portion and a manipulating portion; machining the functional portion in a thickness direction of the key body to form a recess and define a guidance element adjacent to the recess, wherein the guidance element forms the mechanical polarizer in the recess so that the functional portion with the mechanical polarizer and the manipulating portion are formed in one piece; and placing contact pads on a surface of the functional portion in the recess, wherein in said one piece of the mechanical polarizer of USB connector and the functional portion and the manipulating portion, said manipulating portion has a thickness greater than said functional portion, the guidance element protrudes from the surface of the functional portion or an opposite surface to the surface of the functional portion in the thickness direction, and has a height of substantially between 0.5 millimeters and 2.5 millimeters in relation to the surface, a width of the guidance element which is substantially equal to 0.5 millimeters, and the thickness of the manipulating portion is substantially between 2.5 millimeters and 4.5 millimeters, wherein said guidance element is in form of three logerons parallel to a direction of introduction of the connector.