发明名称 Portable terminal system and operation method thereof
摘要 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. Accordingly, various services using a digital watermark technique can be provided by using a portable terminal which can process a high-definition image to which a digital watermark can be embedded.
申请公布号 US2003083098(A1) 申请公布日期 2003.05.01
申请号 US20020277943 申请日期 2002.10.23
申请人 CANON KABUSHIKI KAISHA 发明人 YAMAZAKI TAKESHI;MURAKAMI TOMOCHIKA
分类号 G06T1/00;H04B7/26;H04M1/725;H04N1/00;H04N1/32;H04N1/387;H04N7/08;H04N7/081;(IPC1-7):H04B1/38;H04M1/00 主分类号 G06T1/00
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