公开(公告)号：US20080019561A1

公开(公告)日：2008-01-24

申请号：US11805689

申请日：2007-05-24

申请人： Kazuo Tani ,  Moriyoshi Shoji

发明人： Kazuo Tani ,  Moriyoshi Shoji

IPC分类号： G06K9/00

CPC分类号： G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065 ,  H04N1/32251

摘要： Provided is a printing system, a printer, and a printing method with which decoding of digital watermarks is possible at a high ratio while ensuring visibility of human-readable information even when the human-readable information is superimposed on the digital watermarks before printing. In a URL server (2), a conversion unit (22) converts predetermined information into digital watermark information represented by a plurality of dots in an on state among dots arranged in a matrix manner, a processing unit (23) generates thinned-out digital watermark information by processing a part of the plurality of dots in the on state into dots in an off state so that at least dots that are successively arranged in a vertical or horizontal direction and are in the on state are not present in the digital watermark information, and a communication control unit (24) transmits the thinned-out digital watermark information to a printer (3). The printer (3) prints the thinned-out digital watermark information and the human-readable information in a superimposed manner.

摘要翻译： 提供了一种打印系统，打印机和打印方法，通过该打印系统，打印机和打印方法，即使在打印之前将人可读信息叠加在数字水印上的同时确保人可读信息的可见性，可以以高比例对数字水印进行解码。 在URL服务器（2）中，转换单元（22）将预定信息转换成以矩阵形式布置的点之间的点状态的多个点表示的数字水印信息，处理单元（23）生成稀疏数字 通过将处于导通状态的多个点的一部分处于关闭状态的点中的水印信息，使得至少在垂直或水平方向上排列并且处于导通状态的点不存在于数字水印信息中 ，并且通信控制单元（24）将稀疏的数字水印信息发送到打印机（3）。 打印机（3）以叠加的方式打印稀疏的数字水印信息和人类可读信息。