To the bottom of a display unit in a handy information terminal apparatus, a picture image scanner, a photographic camera or a printer may be physically and electrically mounted. Signal transfer is carried out between the handy information terminal apparatus and each of the scanner, the camera or and...http://www.google.com.hk/patents/US5936609?utm_source=gb-gplus-share專利 US5936609 - Handy information terminal apparatus
