Patents by Inventor Saravanan Subbarayan

Saravanan Subbarayan 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).

  • Method and system for entropy driven verification
    Patent number: 6918099
    Abstract: A microelectronic device design verification system and method estimates the entropy of stimuli communicated over an interface to verify a microelectronic device design and feeds back the estimated entropy to alter the generation of stimuli to improve the design state space verified by additional stimuli applied to the microelectronic device design. For instance, predetermined factors used for random or directed generation of stimuli are altered based on the estimated entropy of stimuli communicated over an interface to a microelectronic device design software model or hardware integrated circuit implementation. The predetermined factors are adjusted so that subsequent stimuli has a desired impact on the estimated entropy, such as an increase in entropy that indicates a more complete microelectronic device design verification.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: July 12, 2005
    Assignee: Sun Microsystems, Inc.
    Inventor: Saravanan Subbarayan
  • Method and system for entropy driven verification
    Publication number: 20040163059
    Abstract: A microelectronic device design verification system and method estimates the entropy of stimuli communicated over an interface to verify a microelectronic device design and feeds back the estimated entropy to alter the generation of stimuli to improve the design state space verified by additional stimuli applied to the microelectronic device design. For instance, predetermined factors used for random or directed generation of stimuli are altered based on the estimated entropy of stimuli communicated over an interface to a microelectronic device design software model or hardware integrated circuit implementation. The predetermined factors are adjusted so that subsequent stimuli has a desired impact on the estimated entropy, such as an increase in entropy that indicates a more complete microelectronic device design verification.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Inventor: Saravanan Subbarayan