US Patent 7520854 Endoscope system allowing movement of a display image

Rotate instructing switches 26, 27, and 28 of an operating remote controller 5 are pressed and then a CPU 12 controls image processing of an image pickup processing portion 8, a direction calculation processing portion 10, and a rotating-image processing portion 9 in accordance with an operating signal to rotate and display a screen 21 displayed on a screen of an LCD 4A. Touch-panel type direction instructing portions arranged on the LCD 4A are operated, thereby supplying operating signals to the CPU 12 via a touch panel controller 4a. The CPU 12 determines, by using a determining area table arranged in a ROM 13 based on the operating signal, which direction instructing portion is pressed. Simultaneously, the CPU 12 calculates the moving direction and the amount of movement of an image by a direction processing portion 11 and the direction calculation processing portion 10, and controls the driving of a driving unit 7 based on a calculated result.