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Waterfall method and apparatus for a data storage device read system

  • US 9,251,844 B1
  • Filed: 04/08/2015
  • Issued: 02/02/2016
  • Est. Priority Date: 06/02/2014
  • Status: Active Grant
First Claim
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1. A magnetic storage medium reader system for a data storage device, comprising:

  • at least a first reader system and a second reader system, the first reader system including a first reader element, and the second reader system including a second reader element;

    a first head including the first reader element and the second reader element; and

    control circuitry reconfigured during manufacturing of the magnetic storage medium reader system to cause the second reader system, but not the first reader system, to read a magnetic storage medium, the first reader system determined during the manufacturing to provide less than a predetermined performance or to be nonfunctioning.

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