A data transmitting device may include a first data transmitting unit and a second transmitting unit. The table top is supported by an underlying frame and table legs. The lock returns a value R, equal to the locks current content C, to an inquiring user seeking access to the resource. The intermediate lenses focus the electron beam further. The first section of the edge of the second structure and a second section of the edge of the second structure merge at least at one point, whereby the angle between the tangents of the edges of the first and second section of the second structure is less than 90\xb0. The document reader reads the document to acquire an image of the document if the document meets a predetermined read condition.