The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2011
Filed:
Mar. 23, 2009
William C. Messner, Pittsburgh, PA (US);
Hiroyuki Suzuki, Sagamlhara, JP;
James A. Bain, Pittsburgh, PA (US);
Vijayakumar Bhagavatula, Pittsburgh, PA (US);
Sheida Nabavi, Pittsburgh, PA (US);
William C. Messner, Pittsburgh, PA (US);
Hiroyuki Suzuki, Sagamlhara, JP;
James A. Bain, Pittsburgh, PA (US);
Vijayakumar Bhagavatula, Pittsburgh, PA (US);
Sheida Nabavi, Pittsburgh, PA (US);
Carnegie Mellon University, Pittsburgh, PA (US);
Abstract
An apparatus, system, and method comprise a magnetoresistive head configured to respond to magnetization states of patterned cells formed on a patterned medium. The magnetoresistive head detects the magnetization states of at least two patterned cells formed on a patterned medium. The magnetoresistive head generates a readback signal based on the magnetization state of the at least two patterned cells. A detector circuit coupled to the head determines a bit pattern corresponding to the readback signal. A processor circuit coupled to the detector circuit determines positional information associated with the magnetoresistive head relative to the at least two patterned cells based on the bit pattern. The system further comprises a patterned medium.