US 12,230,304 B2
Data storage device with write protection and guaranteed rapid write verification in energy-assisted recording (EAR)
Bernd Lamberts, San Jose, CA (US); Bernhard E. Knigge, San Jose, CA (US); Erhard Schreck, San Jose, CA (US); and Qing Dai, San Jose, CA (US)
Assigned to WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US)
Filed by WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US)
Filed on Aug. 9, 2023, as Appl. No. 18/232,003.
Claims priority of provisional application 63/450,510, filed on Mar. 7, 2023.
Prior Publication US 2024/0304214 A1, Sep. 12, 2024
Int. Cl. G11B 27/36 (2006.01); G11B 5/48 (2006.01); G11B 5/54 (2006.01); G11B 5/60 (2006.01)
CPC G11B 5/607 (2013.01) [G11B 5/4866 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data storage device, comprising:
one or more disks;
an actuator mechanism configured to position a selected head among one or more heads proximate to a corresponding disk surface among the one or more disks; and
one or more processing devices, individually or in combination, configured to:
receive, one or more signals indicative of conditions of a write operation performed by the selected head;
determine, based on the one or more signals, a verification status indicating whether the write operation was successful;
output the verification status within a selected time limit;
provide an option for selecting the selected time limit; and
set the selected time limit based on an input in response to the option for selecting the selected time limit.