A circuit design of a transistor connected as a diode, in particular to a design able to reduce the threshold voltage of the transistor and equal to the difference of the threshold voltage of the used transistors in the circuit disposal. The device comprises a joined sensor for monitoring one or more physiological parameter for diagnostic or therapeutic purposes. The surface alteration may be a slit which opens or closes upon occlusion of said closure device. Luma results may be provided to one or more downstream stages of the pipeline that process chroma elements of each macroblock. A lever arm extends from the nozzle. In the focusing state control step, the focusing state is controlled so that a main subject is focused via a region with a shortest required focusing time among the plurality of regions in response to a picture taking instruction.