Patents by Inventor Guy T. Lawrence

Guy T. Lawrence 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).

  • Read-after-write methodology using multiple actuators moveable over the same magnetic recording disk surface
    Patent number: 10249339
    Abstract: One or more magnetic recording disks are coupled to a spindle motor, each of the disks having opposing recording surfaces. Two or more actuators are moveable independently over at least a first recording surface of the one or more disks. A first actuator of the two or more actuators comprises a first write head and a first read head. A second actuator of the two or more actuators comprises at least a second read head and may include a second write head. A controller is coupled to the two or more actuators and configured to write data to a track on the first recording surface using the first write head, and perform a read operation on the data written to the track using the second read head. The controller is also configured to verify that the data was successfully written to the track in response to the read operation. The read operation can be performed within less than one revolution of the first recording surface after the write operation.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: April 2, 2019
    Assignee: Seagate Technology LLC
    Inventors: Riyan Mendonsa, Jason Bryce Gadbois, Mark Allen Gaertner, Guy T. Lawrence, Bruce Douglas Buch
  • Read-after-write methodology using multiple actuators moveable over the same magnetic recording disk surface
    Patent number: 10037779
    Abstract: One or more magnetic recording disks are coupled to a spindle motor, each of the disks having opposing recording surfaces. Two or more actuators are moveable independently over at least a first recording surface of the one or more disks. A first actuator of the two or more actuators comprises a first write head and a first read head. A second actuator of the two or more actuators comprises at least a second read head and may include a second write head. A controller is coupled to the two or more actuators and configured to write data to a track on the first recording surface using the first write head, and perform a read operation on the data written to the track using the second read head. The controller is also configured to verify that the data was successfully written to the track in response to the read operation. The read operation can be performed within less than one revolution of the first recording surface after the write operation.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: July 31, 2018
    Assignee: Seagate Technology LLC
    Inventors: Riyan Mendonsa, Jason Bryce Gadbois, Mark Allen Gaertner, Guy T. Lawrence, Bruce Douglas Buch