Patent ID: 11881230
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. A magnetic media drive, comprising:
a magnetic recording head;
a magnetic media; and
a control unit coupled to the magnetic recording head and the magnetic media, wherein the control unit is configured to:
apply laser current to the magnetic recording head, wherein the laser current is applied at a first level that is below a laser current level capable of writing data to the magnetic media, wherein the first level is applied for a first period of time:
remove the laser current applied at the first level;
apply laser current to the magnetic recording head at a second level that is greater than the first level, wherein the second level is below the laser current level capable of writing data to the magnetic media, wherein the second level is applied for a second period of time; and
remove the laser current applied at the second level, wherein the removing the laser current applied at the first level lasts for a third period of time, wherein removing the laser current applied at the second level lasts for a fourth period of time, and wherein the third period of time is equal to the fourth period of time.