Patents by Inventor Thomas E. Raffill

Thomas E. Raffill 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: 20200202078
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Application
    Filed: October 29, 2019
    Publication date: June 25, 2020
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 10460041
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: October 29, 2019
    Assignee: SONICWALL INC.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 10387455
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 20, 2019
    Assignee: SONICWALL INC.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20170249377
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20170147565
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Application
    Filed: January 10, 2017
    Publication date: May 25, 2017
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 9654446
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 16, 2017
    Assignee: SONICWALL INC.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 9542387
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: January 10, 2017
    Assignee: DELL SOFTWARE INC.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20150358286
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Application
    Filed: July 7, 2015
    Publication date: December 10, 2015
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 9075804
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 7, 2015
    Assignee: Dell Software Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20150074099
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 8892587
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: November 18, 2014
    Assignee: SonicWALL, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20140324415
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 8775164
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: July 8, 2014
    Assignee: SonicWALL, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20130339006
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 19, 2013
    Applicant: SonicWall, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 8577669
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: November 5, 2013
    Assignee: SonicWALL, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Publication number: 20130275423
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Application
    Filed: February 5, 2013
    Publication date: October 17, 2013
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 8370374
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: February 5, 2013
    Assignee: SonicWALL, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 8086441
    Abstract: Some embodiments of an efficient string search have been presented. In one embodiment, a string of bytes representing content written in a non-delimited language is received, wherein the content has been classified into a predetermined category. In a single pass through the string of bytes, a set of N-grams is searched for simultaneously. Statistical information on occurrences of the N-grams, if any, in the string of bytes is collected. In some embodiments, a model is generated based on the statistical information, where the model is usable by a content filter to classify content.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: December 27, 2011
    Assignee: SonicWall, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 7996415
    Abstract: Some embodiments of on-the-fly pattern recognition with configurable bounds have been presented. In one embodiment, a pattern matching engine is configured based on user input, which may include values of one or more user configurable bounds on searching. Then the configured pattern matching engine is used to search for a set of features in an incoming string. A set of scores is updated based on the presence of any of the features in the string while searching for the features. Each score may indicate a likelihood of the content of the string being in a category. The search is terminated if the end of the string is reached or if the user configurable bounds are met. After terminating the search, the scores are output.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: August 9, 2011
    Assignee: Sonicwall, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender
  • Patent number: 7917522
    Abstract: A training procedure for N-gram based statistical document classification has been disclosed. In one embodiment, a set of N-grams is selected out of a second set of N-grams, each of the N-grams having a sequence of N bytes, where N is an integer. Then a statistical content classification model is generated based on occurrences of the N-grams, if any, in a set of training documents and a set of validation documents. The statistical content classification model is provided to content filters to classify content.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: March 29, 2011
    Assignee: SonicWALL, Inc.
    Inventors: Thomas E. Raffill, Shunhui Zhu, Roman Yanovsky, Boris Yanovsky, John Gmuender