US 9,812,161 B2
Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection
Manuel Charles Anaya-Dufresne, Edina, MN (US); Brian William Karr, Savage, MN (US); Gary Joseph Kunkel, Minneapolis, MN (US); and Zhen Wei, Maple Grove, MN (US)
Assigned to SEAGATE TECHNOLOGY LLC, Cupertino, CA (US)
Filed by Seagate Technology LLC, Cupertino, CA (US)
Filed on Aug. 30, 2016, as Appl. No. 15/251,663.
Application 14/827,603 is a division of application No. 13/298,712, filed on Nov. 17, 2011, granted, now 9,123,381, issued on Sep. 1, 2015.
Application 15/251,663 is a continuation of application No. 14/827,603, filed on Aug. 17, 2015, granted, now 9,449,629.
Claims priority of provisional application 61/414,733, filed on Nov. 17, 2010.
Claims priority of provisional application 61/414,734, filed on Nov. 17, 2010.
Prior Publication US 2016/0372144 A1, Dec. 22, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. G11B 21/02 (2006.01); G11B 5/60 (2006.01); G11B 20/10 (2006.01); G01K 13/00 (2006.01); G11B 5/024 (2006.01); G11B 5/31 (2006.01); G11B 27/36 (2006.01); G11B 7/09 (2006.01); G11B 7/121 (2012.01)
CPC G11B 5/607 (2013.01) [G01K 13/00 (2013.01); G11B 5/024 (2013.01); G11B 5/3133 (2013.01); G11B 5/6011 (2013.01); G11B 5/6076 (2013.01); G11B 20/10 (2013.01); G11B 27/36 (2013.01); G11B 7/0948 (2013.01); G11B 7/121 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a head transducer configured to interact with a magnetic recording medium having a plurality of tracks, each of the tracks having a width and a length; and
a sensor having a temperature coefficient of resistance and arranged at the head transducer so that a longitudinal axis of the sensor is oriented substantially parallel relative to the length of the tracks, the sensor configured to sense for asperities of the medium.