Patents by Inventor Nishant B. Shah

Nishant B. Shah 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: 20240097740
    Abstract: Frequency spectrum of wireless transmission signals are allocated based on availability and regulatory requirements. To ensure transmission signals are within designated channel boundary, user equipment utilizes processing circuitry coupled to a transceiver to pre-compensate for estimated frequency shift at the time of transmissions. Certain guard bands are provided such that the actual transmission signals with the frequency pre-compensation are within the designated channel boundary. Additionally, or alternatively, the user equipment utilizes the processing circuitry to pre-compensate for estimated time shift based on a crystal drift using temperature measurement.
    Type: Application
    Filed: September 19, 2022
    Publication date: March 21, 2024
    Inventors: Sudhir K. Baghel, Seshu Tummala, Amol P. Bhatkar, Mehran T. Baghaei, Venkateswara Rao Manepalli, Nishant Pattanaik, Sudeep Bhattarai, Lohit Sarna, Jay P. Shah, Sebastian B. Seeber
  • Patent number: 8271706
    Abstract: The present invention provides a computer implemented method and apparatus to revising logical unit ownership in a host. A host receives an error message from a storage subsystem having at least two storage controllers and at least one logical unit coupled to at least one of the storage controllers. The host suspends I/O from the host to the storage subsystem. The host transmits a verification of logical unit ownership query to the storage subsystem. The host determines that ownership between a host and a logical unit on the at least one of the storage controllers has changed from a mapping table of the host. Responsive to a determination that ownership has changed, the host updates ownership in a mapping table of the host to reflect the ownership between the host and the logical unit. The host resumes I/O from the host to the storage subsystem, wherein the host routinely exchanges I/O with the storage subsystem.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: September 18, 2012
    Assignee: International Business Machines Corporation
    Inventors: John L. Neemidge, Nishant B. Shah, Stephen M. Tee, Teerasit Tinnakul
  • Publication number: 20100050021
    Abstract: Disclosed is a computer implemented method and apparatus for making ownership changes to a storage subsystem. The host sends the first ownership change command to the storage subsystem then determines whether the storage subsystem responded with an error message. Upon responding to a determination that the storage subsystem responded with the error message, the host determines whether the storage subsystem indicated an error associated with an ownership change. In response to a determination that the storage subsystem indicated an error associated with an ownership change, the host sends a discover ownership message to the storage subsystem. Upon receiving a list of logical unit number associations from the storage subsystem, the host responds to receiving a list of logical unit number associations. The host performs a second ownership command to determine whether the list of logical unit number associations matches an ownership defined in the ownership change command.
    Type: Application
    Filed: August 25, 2008
    Publication date: February 25, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John L. Neemidge, Nishant B. Shah, Stephen M. Tee, George L. White
  • Publication number: 20090292834
    Abstract: The present invention provides a computer implemented method and apparatus to revising logical unit ownership in a host. A host receives an error message from a storage subsystem having at least two storage controllers and at least one logical unit coupled to at least one of the storage controllers. The host suspends I/O from the host to the storage subsystem. The host transmits a verification of logical unit ownership query to the storage subsystem. The host determines that ownership between a host and a logical unit on the at least one of the storage controllers has changed from a mapping table of the host. Responsive to a determination that ownership has changed, the host updates ownership in a mapping table of the host to reflect the ownership between the host and the logical unit. The host resumes I/O from the host to the storage subsystem, wherein the host routinely exchanges I/O with the storage subsystem.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 26, 2009
    Applicant: International Business Machines Corporation
    Inventors: John L. Neemidge, Nishant B. Shah, Stephen M. Tee, Teerasit Tinnakul