When a power source is turned on, a menu screen is displayed on LCD. When the insertion of an earphone jack is detected with the menu screen displayed, display on LCD is automatically switched from the menu screen to a dialing screen. A user can have conversation with a desired party by dialing using...http://www.google.es/patents/US6195570?utm_source=gb-gplus-sharePatente US6195570 - Mobile terminal provided with display controlling function by detecting insertion of earphone jack
Mobile terminal provided with display controlling function by detecting ...