Invention Grant
- Patent Title: Toothed-rack physical unclonable function
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Application No.: US15192399Application Date: 2016-06-24
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Publication No.: US09608634B1Publication Date: 2017-03-28
- Inventor: Gary Allen Denton , Randal Scott Williamson
- Applicant: Lexmark International, Inc.
- Applicant Address: US KY Lexington
- Assignee: Lexmark International, Inc.
- Current Assignee: Lexmark International, Inc.
- Current Assignee Address: US KY Lexington
- Main IPC: G03G21/00
- IPC: G03G21/00 ; H03K19/003 ; H04L9/32 ; G03G21/18 ; B41J2/175
Abstract:
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.
Public/Granted literature
- US20170104486A1 TOOTHED-RACK PHYSICAL UNCLONABLE FUNCTION Public/Granted day:2017-04-13
Information query
