发明授权
US06636551B1 ADDITIONAL INFORMATION TRANSMISSION METHOD, ADDITIONAL INFORMATION TRANSMISSION SYSTEM, INFORMATION SIGNAL OUTPUT APPARATUS, INFORMATION SIGNAL PROCESSING APPARATUS, INFORMATION SIGNAL RECORDING APPARATUS AND INFORMATION SIGNAL RECORDING MEDIUM
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附加信息传输方法，附加信息传输系统，信息信号输出装置，信息信号处理装置，信息信号记录装置和信息信号记录介质
- 专利标题： ADDITIONAL INFORMATION TRANSMISSION METHOD, ADDITIONAL INFORMATION TRANSMISSION SYSTEM, INFORMATION SIGNAL OUTPUT APPARATUS, INFORMATION SIGNAL PROCESSING APPARATUS, INFORMATION SIGNAL RECORDING APPARATUS AND INFORMATION SIGNAL RECORDING MEDIUM
- 专利标题（中）： 附加信息传输方法，附加信息传输系统，信息信号输出装置，信息信号处理装置，信息信号记录装置和信息信号记录介质
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申请号： US09431793申请日： 1999-11-03
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公开(公告)号： US06636551B1公开(公告)日： 2003-10-21
- 发明人: Nozomu Ikeda , Akira Ogino , Takashi Kohashi , Yuji Kimura , Hisayoshi Moriwaki
- 申请人： Nozomu Ikeda , Akira Ogino , Takashi Kohashi , Yuji Kimura , Hisayoshi Moriwaki
- 优先权： JP10-314814 19981105; JP10-318835 19981110
- 主分类号： H04L2704
- IPC分类号： H04L2704
摘要：
An additional information transmission method for transmitting an information signal and additional information in the form of an electronic watermark. The electronic watermark information is generated and superimposed on the information signal for transmission so as to form a superimposition/non-superimposition pattern corresponding to first additional information and transmitting second additional information on the information signal such that one value of one-bit information is expressed by a period in which electronic watermark information is superimposed on the information signal and other values of one-bit information are expressed by a period in which the electronic watermark information is not superimposed.