In some embodiments, a computer-implemented method is performed at a portable electronic device with a touch screen display while the portable electronic device is in a user-interface locked mode of a workout monitoring application with the touch screen display turned off. Based on a luminance histogram for photographed data, an input lower limit and an input upper limit of luminance values for use in developing the photographed data are determined. The cards have different purchasing values. The feedforward control circuit detects either of an input voltage of the lighting circuit and an input voltage of the smoothing circuit, and sends a control signal to the dimming signal circuit, wherein the control signal is a signal for correcting a lighting time so that a light output of the light source can become a desired value. A wafer includes a first partially completed feature disposed in a first region. The sphere is arranged to be driven by the movement so as to rotate at the rate of one revolution per 24 hours about a first axis of rotation oriented parallel to the plane of the dial, and the shell is mounted to pivot about a second axis perpendicular to the plane of the dial.