US 12,249,353 B1
Disk writing mode providing main pole relaxation
Kai Wu, Singapore (SG); Mats Oberg, San Jose, CA (US); and Hao Fang, Eden Praire, MN (US)
Assigned to Marvell Asia Pte Ltd, Singapore (SG)
Filed by Marvell Asia Pte Ltd, Singapore (SG)
Filed on Dec. 21, 2023, as Appl. No. 18/392,038.
Application 18/392,038 is a continuation of application No. 18/053,470, filed on Nov. 8, 2022, granted, now 11,894,025.
Claims priority of provisional application 63/318,378, filed on Mar. 9, 2022.
Claims priority of provisional application 63/318,366, filed on Mar. 9, 2022.
This patent is subject to a terminal disclaimer.
Int. Cl. G11B 5/00 (2006.01); G11B 5/012 (2006.01); G11B 5/49 (2006.01)
CPC G11B 5/012 (2013.01) [G11B 5/4946 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for writing data to a magnetic data storage medium, the method comprising:
detecting whether duration, before occurrence of a data transition, of data to be written exceeds a predetermined threshold; and
writing the data by (1) applying an initial pulse to begin the writing, and then (2) based on the duration, before the occurrence of the data transition, of the data to be written, determining whether a write current is needed, following the initial pulse, to continue the writing, and (3) controlling the write current based on the determining.