| 发明名称 |
TOOTHED-RACK PHYSICAL UNCLONABLE FUNCTION |
| 摘要 |
A physical unclonable function (PUF) located on a supply item for an imaging device is disclosed. The PUF has a toothed rack configured to mate with a gear. During reading operations, the gear turns and translates the PUF linearly under a magnetic sensor. This configuration is inexpensive and robust. Other devices are disclosed. |
| 申请公布号 |
US2017104486(A1) |
申请公布日期 |
2017.04.13 |
| 申请号 |
US201615192399 |
申请日期 |
2016.06.24 |
| 申请人 |
Lexmark International, Inc. |
发明人 |
Denton Gary Allen;Williamson Randal Scott |
| 分类号 |
H03K19/003;H04L9/32 |
主分类号 |
H03K19/003 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A supply item for an imaging device comprising:
a body; and a physical unclonable function (PUF) having magnetic particles in a non-magnetic substrate having a toothed rack having a longitudinal axis, the PUF is held captive to the body and constrained to move linearly at least ten millimeters relative to the body parallel to the longitudinal axis. |
| 地址 |
Lexington KY US |
