Patents by Inventor Jim French

Jim French 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).

  • Publication number: 20230401001
    Abstract: Identifying recording disk defects in a data storage device such as a hard disk drive (HDD), for which disk defects are not previously identified, includes responsive to a first user data write request to a particular storage area of a disk medium, writing the user data to the particular storage area, reading the written user data from the particular storage area, and verifying the integrity of the user data read from the particular storage area. Upon passing, a second user data write request to the same particular storage area can be fulfilled without again reading and verifying. Upon failing, the particular storage area is marked as defective and the user data is written to a different storage area. This procedure can be repeated in response to each initial user write request to each storage area of each disk medium, foregoing the need for disk surface scanning during manufacturing.
    Type: Application
    Filed: June 9, 2022
    Publication date: December 14, 2023
    Inventor: Jim French
  • Patent number: 11790949
    Abstract: A data storage device comprises a disk having a plurality of data tracks and a plurality of servo wedges wherein the plurality of servo wedges comprise a plurality of wedge repeatable runout (WRRO) fields configured to store a plurality of WRRO compensation values in connection with the plurality of data tracks. The data storage device may also include a read/write head configured to be actuated over the disk, and a controller configured to gather position error signal (PES) data needed for computation of the WRRO compensation values during a field operation of the data storage device. The data storage device may be further configured to adjust a position of the read/write head based on the WRRO compensation values.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: October 17, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Jim French, Austin Striegel, Gary Herbst, Chuanwen Ji
  • Publication number: 20230282237
    Abstract: A data storage device comprises a disk having a plurality of data tracks and a plurality of servo wedges wherein the plurality of servo wedges comprise a plurality of wedge repeatable runout (WRRO) fields configured to store a plurality of WRRO compensation values in connection with the plurality of data tracks. The data storage device may also include a read/write head configured to be actuated over the disk, and a controller configured to gather position error signal (PES) data needed for computation of the WRRO compensation values during a field operation of the data storage device. The data storage device may be further configured to adjust a position of the read/write head based on the WRRO compensation values.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 7, 2023
    Inventors: Jim French, Austin Striegel, Gary Herbst, Chuanwen Ji
  • Patent number: 11063856
    Abstract: The subject disclosure relates to methods for monitoring virtual network functions (VNFs) using mirror-ports provided on a virtual switch. A method of the technology can include steps for detecting an instantiation of a virtual network function (VNF), receiving a plurality of operating parameters for the VNF, connecting the VNF with a virtual switch, and automatically discovering an Internet Protocol (IP) address of the VNF. In some aspects, the method can further include operations for instantiating a mirror-port on the virtual switch, the mirror-port configured to provide a communications interface for monitoring the VNF based on a monitoring parameter. Systems and computer-readable media are also provided.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 13, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Dinesh Ranjit, Jim French, Nagi Swaminathan
  • Publication number: 20190068476
    Abstract: The subject disclosure relates to methods for monitoring virtual network functions (VNFs) using mirror-ports provided on a virtual switch. A method of the technology can include steps for detecting an instantiation of a virtual network function (VNF), receiving a plurality of operating parameters for the VNF, connecting the VNF with a virtual switch, and automatically discovering an Internet Protocol (IP) address of the VNF. In some aspects, the method can further include operations for instantiating a mirror-port on the virtual switch, the mirror-port configured to provide a communications interface for monitoring the VNF based on a monitoring parameter. Systems and computer-readable media are also provided.
    Type: Application
    Filed: August 24, 2017
    Publication date: February 28, 2019
    Inventors: Dinesh Ranjit, Jim French, Nagi Swaminathan
  • Publication number: 20070197716
    Abstract: A polymer composition comprising a density equal to or greater than about 0.947 g/cc, a high load melt index from about 1 g/10 min to about 30 g/10 min, and a tensile natural draw ratio less than about 14167?-12958, where ? is the density (g/cc) of the composition. A polymer composition comprising a tensile natural draw ratio less than about 14167?-12958, where ? is the density (g/cc) of the composition and wherein less than about 1 weight percent of the composition comprises non-polymeric additives.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventors: Rajendra Krishnaswamy, Qing Yang, David Rohlfing, Max McDaniel, Kumudini Jayaratne, Jim French
  • Patent number: 6687077
    Abstract: The present invention is directed to a disk drive that employs a proximity recording interface in which a slider that carries a head is designed to remain in contact with the disk during data transfer operations to achieve a high data density. In particular, the present invention is directed to cleaning debris from a pad on the slider that carries the head. The debris, if allowed to accumulate, can reach a depth at which the head is spaced from the disk at a distance which adversely affects the transfer of data with the disk. In one embodiment, the spin motor of the disk drive is caused to rotate at a lower angular velocity than during normal data transfer operations, preferably using open loop control, while the actuator of the disk drive is used to radially displace the slider and associated head, also preferably using open loop control. For a constant angular velocity of the disk, the change in radial position causes different areas of the pad to be contacted and cleaned by the disk.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: February 3, 2004
    Assignee: Maxtor Corporation
    Inventors: Jim French, Mike McNeil, Ross Chessman
  • Patent number: 6493168
    Abstract: The present invention is directed to a disk drive that employs a proximity recording interface in which a slider that carries a head is designed to remain in contact with the disk during data transfer operations to achieve a high data density. In particular, the present invention is directed to cleaning debris from a pad on the slider that carries the head. The debris, if allowed to accumulate, can reach a depth at which the head is spaced from the disk at a distance which adversely affects the transfer of data with the disk. In one embodiment, the spin motor of the disk drive is caused to rotate at a lower angular velocity than during normal data transfer operations, preferably using open loop control, while the actuator of the disk drive is used to radially displace the slider and associated head, also preferably using open loop control. For a constant angular velocity of the disk, the change in radial position causes different areas of the pad to be contacted and cleaned by the disk.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: December 10, 2002
    Assignee: Maxtor Corporation
    Inventors: Jim French, Mike McNeil, Ross Chessman
  • Patent number: 6373651
    Abstract: The present invention is directed to a disk drive that employs a proximity recording interface in which a slider that carries a head is designed to remain in contact with the disk during data transfer operations to achieve a high data density. In particular, the present invention is directed to cleaning debris from a pad on the slider that carries the head. The debris, if allowed to accumulate, can reach a depth at which the head is spaced from the disk at a distance which adversely affects the transfer of data with the disk. In one embodiment, the spin motor of the disk drive is caused to rotate at a lower angular velocity than during normal data transfer operations, preferably using open loop control, while the actuator of the disk drive is used to radially displace the slider and associated head, also preferably using open loop control. For a constant angular velocity of the disk, the change in radial position causes different areas of the pad to be contacted and cleaned by the disk.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: April 16, 2002
    Inventors: Jim French, Mike McNeil, Ross Chessman