Portable communication terminal switchably displaying pictures based on a plurality of video signal sources

摘要

A cellular phone having a plurality of cameras and being able to switch display of a picture without interrupting display for the camera is provided. Processes executed by a control unit of the cellular phone include the steps of measuring a holddown time when holddown of a button is detected; sending the video signal sent from the camera corresponding to a numeric button to a main monitor when a first function button is held down for a holddown time shorter than a predetermined time and the numeric button is held down; and sending the video signal sent from the camera set as a next source to the main monitor when the numeric button is not held down. The processes further includes the step of sending the video signal sent from a main camera to main monitor when the holddown time is longer than the predetermined time.