Patents by Inventor Puneet Bhargava

Puneet Bhargava 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).

  • Data storage device using performance margin to back off fly height
    Patent number: 9997186
    Abstract: A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a fly height actuator configured to control a fly height of the head over the disk. A plurality of host read commands are received from a host, and a performance metric associated with accessing the disk to execute the host read commands is measured. When the performance metric indicates the data storage device is operating with a performance margin, the fly height actuator is controlled to increase the fly height of the head over the disk, wherein the performance metric consists of at least one of a throughput of the host read commands and a power consumption of the data storage device.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: June 12, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Puneet Bhargava, Remmelt Pit
  • Data storage device detecting minimum stable fly height of a head over a disk
    Patent number: 9786309
    Abstract: A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a fly height actuator (FHA). A FHA control signal is applied to the FHA, wherein the FHA control signal comprises a DC component and an AC component. A fly height metric is measured representing a fly height of the head over the disk for different levels of the DC component. A modulation amplitude of the fly height metric is detected, and a minimum in the modulation amplitude of the fly height metric is detected.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: October 10, 2017
    Assignee: Western Digital Technologies, Inc.
    Inventors: Bernhard E. Knigge, Noureddine Kermiche, Robert E. Eaton, Puneet Bhargava
  • Data transfer assembly performance characteristics testing
    Patent number: 7969674
    Abstract: An apparatus is provided having a data transfer member, and a medium supported by a base adjacent the data transfer member. A medium tilting device supports the base and is selectively positionable to tilt the medium with respect to the data transfer member to simulate presenting the head to the medium at a desired angular orientation. A sensor measures a characteristic associated with a data transfer relationship between the data transfer member and the medium.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: June 28, 2011
    Assignee: Seagate Technology LLC
    Inventors: Ning Yu, Puneet Bhargava
  • DATA TRANSFER ASSEMBLY PERFORMANCE CHARACTERISTICS TESTING
    Publication number: 20100085654
    Abstract: An apparatus is provided having a data transfer member, and a medium supported by a base adjacent the data transfer member. A medium tilting device supports the base and is selectively positionable to tilt the medium with respect to the data transfer member to simulate presenting the head to the medium at a desired angular orientation. A sensor measures a characteristic associated with a data transfer relationship between the data transfer member and the medium.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Ning Yu, Puneet Bhargava