Patent ID: 8542271

Claim:
A monitor device for use with an endoscope apparatus, comprising: a radio receiving section to receive image data transmitted by radio successively from the endoscope apparatus; a display section to display the image data received by radio receiving section; a determining section to determine whether the image data started to be received by radio by the radio receiving section has been received by radio in a normal state within a predetermined period; a storage section to temporarily store the image data which has been received by radio in the normal state when the determining section determines that the image data has been received in the normal state; a display control section to update the image data received by radio in the normal state and causing the display section to display the image data updated, when the determining section determines that the image data has been received by radio in the normal state, and for causing the display section to repeatedly display the image data temporarily stored, when the determining section does not determine that the image data has been received by radio in the normal state; and an informing section to inform an operator whether the image data displayed in the display section is the updated image data or the repeatedly displayed image data, wherein the determining section determines that the image data assumes the normal state when the image data is received by radio before a predetermined time expires and the determining section determines whether the image data has been received by radio in the normal state, repeatedly at intervals of a prescribed time.