Patents by Inventor Nalin H. Chheda

Nalin H. Chheda 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).

  • Patent number: 7076603
    Abstract: A method is disclosed for mapping a selected sector to a zone on a disk having a plurality of zones during the operations of a disk drive. The method includes receiving a sector address corresponding to the selected sector and calculating an average zone capacity for the disk. The method further includes approximating the zone for the selected sector from the calculated average zone capacity and the received sector address.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: July 11, 2006
    Assignee: Western Digital Technologies, Inc.
    Inventor: Nalin H. Chheda
  • Patent number: 7046467
    Abstract: A method is disclosed for selecting format specific parameters in a disk drive comprising a control system and a plurality of disk surfaces each having a surface format for storing data, wherein at least one surface format is different than other surface formats. The method includes initializing the disk drive for operation, receiving a data transfer command, and selecting a disk surface for performing data transfer operations based on the received data transfer command. The method further includes selecting a format specific data structure corresponding to the selected disk surface, generating a second format specific data structure from the first format specific data structure, and performing the data transfer operations by the control system based on the calculated variable.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: May 16, 2006
    Assignee: Western Digital Technologies, Inc.
    Inventor: Nalin H. Chheda
  • Patent number: 7003626
    Abstract: Format specific parameters may be selected in a disk drive comprising a control system and a plurality of disk surfaces each having a surface format for storing data, wherein at least one surface format is different than other surface formats and wherein the control system comprises a microcontroller having a microcontroller execution memory. The method for selecting these format specific parameters includes initializing the disk drive for operation, receiving a data transfer command, and selecting a disk surface for performing data transfer operations based on the received data transfer command. The method further includes generating a format specific data structure corresponding to the selected disk surface, storing the format specific data structure at a predetermined address in the microcontroller execution memory, and executing instructions for performing the data transfer operations using the microcontroller, wherein the instructions are executed using the stored format specific data structure.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: February 21, 2006
    Assignee: Western Digital Technologies, Inc.
    Inventors: Nalin H. Chheda, Philip S. Gordon
  • Patent number: 6898044
    Abstract: A method is disclosed for selecting format specific parameters in a disk drive comprising a control system and a plurality of disk surfaces each having a surface format for storing data, wherein at least one surface format is different than other surface formats. The method includes initializing the disk drive for operation, receiving a data transfer command, and selecting a disk surface for performing data transfer operations based on the received data transfer command. The method further includes selecting a format specific data structure corresponding to the selected disk surface, calculating a format specific variable using the selected format specific data structure, and performing the data transfer operations by the control system based on the calculated variable.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: May 24, 2005
    Assignee: Western Digital Technologies, Inc.
    Inventor: Nalin H. Chheda