Random bit generator that applies alternating current (AC) to magnetic tunnel junction to generate a random bit

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United States of America Patent

PATENT NO 9087593
APP PUB NO 20140022837A1
SERIAL NO

13947810

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Devices and methods for generating a random number that utilizes a magnetic tunnel junction are disclosed. An AC current source can be in electrical connection to a magnetic tunnel junction to provide an AC current to the magnetic tunnel junction. A read circuit can be used to determine a bit based on a state of the magnetic tunnel junction. A rate of production of the bits can be adjusted, such as by adjusting a frequency or amplitude of the AC current. A probability of obtaining a “0” or “1” bit can be managed, such as by an addition of DC biasing to the AC current.

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Patent Owner(s)

  • SEAGATE TECHNOLOGY LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yiran Eden Prairie, US 110 1778
Huang, Henry Apple Valley, US 53 581
Wang, Xiaobin Chanhassen, US 190 2558
Xi, Haiwen Prior Lake, US 143 2282
Zhu, Wenzhong Apple Valley, US 103 1331

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