Patents by Inventor Terry Wayne McDaniel

Terry Wayne McDaniel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recording
    Patent number: 8149652
    Abstract: An apparatus comprises a storage medium, a recording head, a source of electromagnetic radiation, and a control circuit for modulating the source of electromagnetic radiation in response to a static deviation of a spacing between the recording head and the storage medium. A method of compensating a static deviation of a spacing between a recording head and a storage medium performed by the apparatus, and a method of precompensating for nonlinear transition shifts in a heat assisted magnetic recording system, are also provided.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: April 3, 2012
    Assignee: Seagate Technology LLC
    Inventors: Mehmet Fatih Erden, Priyadarshee Deeptarag Mathur, William Albert Challener, Edward Charles Gage, Wei Peng, Terry Wayne McDaniel, Tim Rausch
  • Compensating the Effects of Static Head-Media Spacing Variations and Nonlinear Transition Shift in Heat Assisted Magnetic Recording
    Publication number: 20090207519
    Abstract: An apparatus comprises a storage medium, a recording head, a source of electromagnetic radiation, and a control circuit for modulating the source of electromagnetic radiation in response to a static deviation of a spacing between the recording head and the storage medium. A method of compensating a static deviation of a spacing between a recording head and a storage medium performed by the apparatus, and a method of precompensating for nonlinear transition shifts in a heat assisted magnetic recording system, are also provided.
    Type: Application
    Filed: March 10, 2009
    Publication date: August 20, 2009
    Applicant: Seagate Technology LLC
    Inventors: Mehmet Fatih Erden, Priyadarshee Deeptarag Mathur, William Albert Challener, Edward Charles Gage, Wei Peng, Terry Wayne McDaniel, Tim Rausch
  • Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recording
    Patent number: 7515372
    Abstract: An apparatus comprises a storage medium, a recording head, a source of electromagnetic radiation, and a control circuit for modulating the source of electromagnetic radiation in response to a static deviation of a spacing between the recording head and the storage medium. A method of compensating a static deviation of a spacing between a recording head and a storage medium performed by the apparatus, and a method of precompensating for nonlinear transition shifts in a heat assisted magnetic recording system, are also provided.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: April 7, 2009
    Assignee: Seagate Technology LLC
    Inventors: Mehmet Fatih Erden, Priyadarshee Deeptarag Mathur, William Albert Challener, Edward Charles Gage, Wei Peng, Terry Wayne McDaniel
  • Magnetic recording media with discrete tracks of magnetic material in a magnetically soft underlayer
    Patent number: 7394622
    Abstract: A magnetic recording medium comprises a magnetically soft underlayer having a plurality of cavities in a surface thereof, and a magnetic recording material in the cavities, wherein a surface of the magnetic recording material in the cavities is substantially coplanar with the surface of the soft underlayer. A recording system that includes the recording medium is also included.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: July 1, 2008
    Assignee: Seagate Technology LLC
    Inventors: Edward Charles Gage, Gary Clark Rauch, Rene Johannes Marinus van de Veerdonk, Hans Juergen Richter, Terry Wayne McDaniel, Mark H. Kryder
  • Multiple data surface magneto-optical data storage system
    Patent number: 5644555
    Abstract: An optical data storage system comprises an optical disk drive and a multiple data surface magneto-optical medium. The medium comprises a substrate, a first dielectric layer, a first magneto-optical data layer, a second dielectric layer, a transmissive member, a third dielectric layer, a second magneto-optical data layer, a fourth dielectric layer, and a reflector layer. The thicknesses of the magneto-optical and dielectric layers are selected to maximize the magneto-optical read out signal received from the data layers. The disk drive includes a phase retarder for improving the signal from the magneto-optical data layers.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: July 1, 1997
    Assignee: International Business Machines Corporation
    Inventors: Terry Wayne McDaniel, Harris Anthony Notarys, Hal Jervis Rosen, Kurt Allan Rubin