A portable terminal wirelessly transmits a taken still image to a predetermined base station. An image processor receives the still image and extracts a digital watermark from the image. Further, the image processor transmits additional information according to the digital watermark to the portable terminal....http://www.google.fr/patents/US20030083098?utm_source=gb-gplus-shareBrevet US20030083098 - Portable terminal system and operation method thereof
Portable terminal system and operation method thereof
Numéro de demande: 10/277,943 Numéro de publication: US 2003/0083098 A1 Date de dépôt: 23 oct. 2002 Brevet délivré: US6980829 ( Date de délivrance 27 déc. 2005)
