Patents by Inventor Sandeep Sequeira

Sandeep Sequeira 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).

  • Multi-stage actuator with writer position determination capability
    Patent number: 9019650
    Abstract: Apparatus and method for determining a position of a writer supported by a multi-stage actuator. In some embodiments, the apparatus includes a multi-stage actuator which supports a transducer adjacent a data recording surface. The multi-stage actuator has a coarse actuator and a microactuator. The transducer includes a write element and a read element. A controller is adapted to determine a position of a write element of the transducer with respect to the data recording surface responsive to a position of a read element of the transducer and a displacement distance of the microactuator away from a neutral position.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 28, 2015
    Assignee: Seagate Technology LLC
    Inventors: Ximin Shan, Jye Kai Chang, Sandeep Sequeira
  • Peak to peak detect method to protect seek/settle induced encroachment
    Publication number: 20050052775
    Abstract: A system and method for improving write integrity of a magnetic storage system. A settling algorithm counter is reset if a position error signal of the write head indicates the head is vibrating with mechanical oscillations outside a predetermined threshold.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 10, 2005
    Inventors: Jianbo He, Gregory Labbe, Avanindra Gupta, Sandeep Sequeira