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US 2024/0371406 A1Published application
Systems for and methods for mode hop detection in heat assisted magnetic recording
AssigneeAvago Technologies International Sales Pte. Limited
InventorsGregory Wayne Starr, Donald Charles Grillo
Life of this patent
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Abstract
Mode hop detection is provided. A device includes circuitry to receive, from a reader element an indication of one or more properties of a magnetic medium detected by the reader element. The device includes circuitry to determine an envelope of the signal. The device includes circuitry to adjust, responsive to the envelope, a current provided to a laser configured to heat the magnetic medium.
Claims20
A device comprising circuitry configured to:
- receive, from a reader element, a signal, the signal comprising an indication of one or more properties of a magnetic medium detected by the reader element;
- determine an envelope of the signal;
- and
- adjust, responsive to the envelope, a current provided to a laser configured to beat the magnetic medium.
1 more element
A method comprising:
- receiving, from a reader element, a signal comprising an indication of one or more properties of a magnetic medium detected by the reader element;
- determining an envelope of the signal;
- and
- adjusting, responsive to the envelope, a current provided to heat the magnetic medium.
1 more element
A system, comprising:
- a magnetic medium;
- a laser diode;
- a reader element;
- and
- a controller configured to:
- receive, from the reader element, an indication of one or more properties of the magnetic medium detected by the reader element;
- adjust, responsive to the indication, a current provided to the laser diode, the laser diode configured to heat the magnetic medium.
4 more elements
Dependencies are inferred from the claim text.