发明名称 |
Holographic labeling and reading machine for authentication and security applications |
摘要 |
A holographic security label and automated reading machine for marking and subsequently authenticating any object such as an identification badge, a pass, a ticket, a manufactured part, or a package is described. The security label is extremely difficult to copy or even to read by unauthorized persons. The system comprises a holographic security label that has been created with a coded reference wave, whose specification can be kept secret. The label contains information that can be extracted only with the coded reference wave, which is derived from a holographic key, which restricts access of the information to only the possessor of the key. A reading machine accesses the information contained in the label and compares it with data stored in the machine through the application of a joint transform correlator, which is also equipped with a reference hologram that adds additional security to the procedure.
|
申请公布号 |
US5920058(A) |
申请公布日期 |
1999.07.06 |
申请号 |
US19960731948 |
申请日期 |
1996.10.23 |
申请人 |
WEBER, DAVID C.;TROLINGER, JAMES D. |
发明人 |
WEBER, DAVID C.;TROLINGER, JAMES D. |
分类号 |
G03H1/10;G03H1/16;G06K19/16;(IPC1-7):G06K7/10 |
主分类号 |
G03H1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|