| 发明名称 |
AUDIBLE DOCUMENT IDENTIFICATION FOR VISUALLY IMPAIRED PEOPLE |
| 摘要 |
Disclosed is a document or article carrying information for the audible authentication of said document or article, wherein the information is present in or on said document or article in the form of a frequency-versus-time spectral density function (spectrogram), the spectrogram being embodied using document security means. Disclosed are further a method for producing said document or article; a reader device for displaying audible authentication information from said document or article, a method for authenticating said document or article and the use of a spectrogram for document authentication purposes. |
| 申请公布号 |
US2015036872(A1) |
申请公布日期 |
2015.02.05 |
| 申请号 |
US201314380443 |
申请日期 |
2013.02.07 |
| 申请人 |
SICPA HOLDING SA |
发明人 |
Mueller Edgar |
| 分类号 |
G10L21/12;B42D25/30;G06K9/20;G06T1/00;G06K9/00 |
主分类号 |
G10L21/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Document or article carrying audible information for the audible authentication of said document or article, characterized in that the audible information is present in or on the document or article in the form of a spectrogram, the spectrogram being embodied using document security means, said spectrogram being a frequency-versus time function. |
| 地址 |
Prilly CH |
