Abstract: A digital photographing system may include a lens unit detecting an image of a subject, and a first processor performing an image compensation data generation process and an optical compensation process in parallel. The optical compensation process may be a process of selectively controlling a movement of the lens unit based on motion data corresponding to a motion of a camera module. The image compensation data generation process may be a process of generating image compensation data corresponding to the image.

Abstract: There is provided an apparatus for driving auto focusing including: a motion sensor outputting motion data on motion of a camera module; a processor generating a control signal for controlling a focus of a subject based on the motion data; and an optical driving module moving a lens in a predetermined direction based on the control signal.

Abstract: A digital photographing system may include a lens unit detecting an image of a subject, and a first processor performing an image compensation data generation process and an optical compensation process in parallel. The optical compensation process may be a process of selectively controlling a movement of the lens unit based on motion data corresponding to a motion of a camera module. The image compensation data generation process may be a process of generating image compensation data corresponding to the image.

Abstract: Disclosed herein are a display device including a stylus pen including: a touch sensor; and a stylus pen detecting a pressure generated due to a touch on the touch sensor and generating a driving signal corresponding to the pressure and applying the generated driving signal to the touch sensor, and and an image information displaying method using the same.

Abstract: Disclosed herein is an apparatus for controlling a position of a display in a wearable device, including: a display module having the display movably mounted therein; and a movement compensating unit controlling a position of the display depending on movement of a user. Therefore, a smooth image compensation effect may be obtained, the user may accurately confirm contents displayed on the display, a focus of a line of sight of the user viewing the display may be fixed to one place, and fatigue of the user may be decreased to expand a use environment of the wearable device.

Abstract: An optical receiver circuit for receiving optical signals is described incorporating a photodetector, two coupling capacitors for coupling each side of the photodetector to respective inputs of a transimpedance amplifier, two current mirror circuits for detecting current on each side of the coupling capacitor and injecting equivalent current to the other side of the other capacitor which is at the input of the transimpedance amplifier, two low pass filters, two current sources and a transimpedance amplifier having two inputs. An optical receiver for receiving optical signals is described incorporating a photodetector having one side coupled to a reference voltage, a current source, a coupling capacitor, a transimpedance amplifier, and a circuit for injecting AC current to the input of the amplifier from the voltage developed across the photodetector.