Invention Grant
US09553582B1 Physical unclonable functions having magnetic and non-magnetic particles
有权
具有磁性和非磁性颗粒的物理不可克隆功能
- Patent Title: Physical unclonable functions having magnetic and non-magnetic particles
- Patent Title (中): 具有磁性和非磁性颗粒的物理不可克隆功能
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Application No.: US14879199Application Date: 2015-10-09
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Publication No.: US09553582B1Publication Date: 2017-01-24
- Inventor: James Ronald Booth , Roger Steven Cannon , Gary Allen Denton , James Paul Drummond , Kelly Ann Killeen
- 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: H03K19/003
- IPC: H03K19/003
Abstract:
A physical unclonable function (PUF) having magnetic and non-magnetic particles is disclosed. Measuring both magnetic field and image view makes the PUF difficult to counterfeit. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other systems are disclosed.
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