Patents by Inventor Prashant N. KULKARNI

Prashant N. KULKARNI 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).

  • Deterring information copying including deterrence of currency counterfeiting
    Patent number: 10498539
    Abstract: A method for deterring information copying, includes: combining a watermark serial number incorporate in a given medium with a content serial number to create a combined serial number, the watermark serial number uniquely identifies the given medium, and the content serial number uniquely identifies a content stored on the given medium; creating a digital signature by encoding the combined serial number using a private key of a public/private key pair; imprinting the content serial number and the digital signature on the given medium; decoding the digital signature imprinted on the given medium using a public key of the public/private key pair to obtain the combined serial number; comparing the decoded combined serial number with the watermark serial number and the content serial number imprinted of the given medium; and in response to determining that both match the combined serial number, determining that the content is authentic.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 3, 2019
    Assignee: International Business Machines Corporation
    Inventors: Rajendran Appavu, Prashant N. Kulkarni
  • DETERRING INFORMATION COPYING INCLUDING DETERRENCE OF CURRENCY COUNTERFEITING
    Publication number: 20180076963
    Abstract: A method for deterring information copying, includes: combining a watermark serial number incorporate in a given medium with a content serial number to create a combined serial number, the watermark serial number uniquely identifies the given medium, and the content serial number uniquely identifies a content stored on the given medium; creating a digital signature by encoding the combined serial number using a private key of a public/private key pair; imprinting the content serial number and the digital signature on the given medium; decoding the digital signature imprinted on the given medium using a public key of the public/private key pair to obtain the combined serial number; comparing the decoded combined serial number with the watermark serial number and the content serial number imprinted of the given medium; and in response to determining that both match the combined serial number, determining that the content is authentic.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 15, 2018
    Inventors: Rajendran APPAVU, Prashant N. KULKARNI
  • Deterring information copying including deterrence of currency counterfeiting
    Patent number: 8585094
    Abstract: A method for deterring information copying, includes: combining a watermark serial number incorporate in a given medium with a content serial number to create a combined serial number, the watermark serial number uniquely identifies the given medium, and the content serial number uniquely identifies a content stored on the given medium; creating a digital signature by encoding the combined serial number using a private key of a public/private key pair; imprinting the content serial number and the digital signature on the given medium; decoding the digital signature imprinted on the given medium using a public key of the public/private key pair to obtain the combined serial number; comparing the decoded combined serial number with the watermark serial number and the content serial number imprinted of the given medium; and in response to determining that both match the combined serial number, determining that the content is authentic.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: November 19, 2013
    Assignee: International Business Machines Corporation
    Inventors: Rajendran Appavu, Prashant N Kulkarni
  • DETERRING INFORMATION COPYING INCLUDING DETERRENCE OF CURRENCY COUNTERFEITING
    Publication number: 20130093175
    Abstract: A method for deterring information copying, includes: combining a watermark serial number incorporate in a given medium with a content serial number to create a combined serial number, the watermark serial number uniquely identifies the given medium, and the content serial number uniquely identifies a content stored on the given medium; creating a digital signature by encoding the combined serial number using a private key of a public/private key pair; imprinting the content serial number and the digital signature on the given medium; decoding the digital signature imprinted on the given medium using a public key of the public/private key pair to obtain the combined serial number; comparing the decoded combined serial number with the watermark serial number and the content serial number imprinted of the given medium; and in response to determining that both match the combined serial number, determining that the content is authentic.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 18, 2013
    Applicant: International Business Machines Corporation
    Inventors: Rajendran APPAVU, Prashant N. Kulkarni
  • DETERRING INFORMATION COPYING INCLUDING DETERRENCE OF CURRENCY COUNTERFEITING
    Publication number: 20130093173
    Abstract: A method for deterring information copying, includes: combining a watermark serial number incorporate in a given medium with a content serial number to create a combined serial number, the watermark serial number uniquely identifies the given medium, and the content serial number uniquely identifies a content stored on the given medium; creating a digital signature by encoding the combined serial number using a private key of a public/private key pair; imprinting the content serial number and the digital signature on the given medium; decoding the digital signature imprinted on the given medium using a public key of the public/private key pair to obtain the combined serial number; comparing the decoded combined serial number with the watermark serial number and the content serial number imprinted of the given medium; and in response to determining that both match the combined serial number, determining that the content is authentic.
    Type: Application
    Filed: July 5, 2012
    Publication date: April 18, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rajendran APPAVU, Prashant N. KULKARNI