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US 10,481,873 B2Granted
Random number generation using heat assisted magnetic recording
AssigneeSeagate Technology LLC
InventorsLi Hong Zhang, WenXiang Xie, Xiong Liu
Life of this patent
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Abstract
A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.
Claims19
A method comprising:
- detecting noise in a laser output of a heat assisted magnetic recording device;
- converting the noise into an electrical signal including a numerical value;
- selecting a least significant digit of the numerical value;
- and
- concatenating the least significant digit with another least significant digit from another detecting of another noise in another laser output to form a number.
2 more elements
A method comprising:
- detecting a plurality of laser noises in a heat assisted magnetic recording device;
- converting the plurality laser noises into a plurality of numerical values;
- selecting a bit in each numerical value of the plurality of numerical values;
- and
- concatenating the selected bits to form a plurality of numbers.
2 more elements
A method comprising:
- detecting a plurality of laser outputs;
- converting the plurality laser outputs into a plurality of numerical values;
- selecting a digit in each numerical value of the plurality of numerical values, wherein one of the selected digits is a least significant bit;
- and
- combining the selected digits to form a plurality of numbers.
2 more elements
Dependencies are inferred from the claim text.