Patents by Inventor Uman Chan

Uman Chan 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).

  • Patent number: 9503383
    Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: November 22, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Uman Chan, Deryck X. Hong, Tsai-Yang Jea, Chulho Kim, Zenon J. Piatek, Hung Q. Thai, Abhinav Vishnu, Hanhong Xue
  • Publication number: 20150222556
    Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.
    Type: Application
    Filed: April 17, 2015
    Publication date: August 6, 2015
    Inventors: UMAN CHAN, DERYCK X. HONG, TSAI-YANG JEA, CHULHO KIM, ZENON J. PIATEK, HUNG Q. THAI, ABHINAV VISHNU, HANHONG XUE
  • Patent number: 9049112
    Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 2, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Uman Chan, Deryck X. Hong, Tsai-Yang Jea, Chulho Kim, Zenon J. Piatek, Hung Q. Thai, Abhinav Vishnu, Hanhong Xue
  • Patent number: 8788583
    Abstract: A mechanism is provided for sharing form data by users of a social network. A first value input for a first label by a first user is received. The first label is associated with a tag in a mapping table. The first value is associated with the tag in a first user table. The first value is recognized as input for a different label than the first label. The different label is associated with the tag in mapping table. A second value is received that is input for a second label by a second user. The second label is associated with the tag in the mapping table. The second value is associated with the tag in a second user table. The second value is recognized as input for a different label than the second label. The different label than the second label is associated with the tag in mapping table.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: July 22, 2014
    Assignee: International Business Machines Corporation
    Inventors: Yuk L. Chan, Tin Hang To, Wei Zhou, Uman Chan
  • Patent number: 8601059
    Abstract: A mechanism is provided for providing trustworthiness for users of a social network for web sites. The computer listens to web browsing activities of a user, and receives feedback from the user when web browsing by monitoring user actions. monitoring user actions includes monitoring the user searching a peer-to-peer environment and search results obtained, and in response to the user selecting a first link for the search results in the peer-to-peer environment, determining a score for the first link based on the user selecting a second link for the search results. The score for the first link is provided to the users of the social network.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: December 3, 2013
    Assignee: International Business Machines Corporation
    Inventors: Yuk L. Chan, Tin H. To, Wei Zhou, Uman Chan
  • Publication number: 20130232262
    Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.
    Type: Application
    Filed: April 5, 2013
    Publication date: September 5, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: UMAN CHAN, DERYCK X. HONG, TSAI-YANG JEA, CHULHO KIM, ZENON J. PIATEK, HUNG Q. THAI, ABHINAV VISHNU, HANHONG XUE
  • Patent number: 8452888
    Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: May 28, 2013
    Assignee: International Business Machines Corporation
    Inventors: Uman Chan, Deryck X Hong, Tsai-Yang Jea, Chulho Kim, Zenon J Piatek, Hung Q Thai, Abhinav Vishnu, Hanhong Xue
  • Patent number: 8135911
    Abstract: A method, system, and computer program product are provided for managing a cache. A region to be stored within the cache is received. The cache includes multiple regions and each of the regions is defined by memory ranges having a starting index and an ending index. The region that has been received is stored in the cache in accordance with a cache invariant. The cache invariant guarantees that at any given point in time the regions in the cache are stored in a given order and none of the regions are completely contained within any other of the regions.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: March 13, 2012
    Assignee: International Business Machines Corporation
    Inventors: Uman Chan, Deryck X. Hong, Tsai-Yang Jea, Hanhong Xue
  • Publication number: 20120023304
    Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 26, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: UMAN CHAN, DERYCK X. HONG, TSAI-YANG JEA, CHULHO KIM, ZENON J. PIATEK, HUNG Q. THAI, ABHINAV VISHNU, HANHONG XUE
  • Publication number: 20110282941
    Abstract: A mechanism is provided for sharing form data by users of a social network. A first value input for a first label by a first user is received. The first label is associated with a tag in a mapping table. The first value is associated with the tag in a first user table. The first value is recognized as input for a different label than the first label. The different label is associated with the tag in mapping table. A second value is received that is input for a second label by a second user. The second label is associated with the tag in the mapping table. The second value is associated with the tag in a second user table. The second value is recognized as input for a different label than the second label. The different label than the second label is associated with the tag in mapping table.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 17, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yuk L. Chan, Tin Hang To, Wei Zhou, Uman Chan
  • Publication number: 20100100674
    Abstract: A method, system, and computer program product are provided for managing a cache. A region to be stored within the cache is received. The cache includes multiple regions and each of the regions is defined by memory ranges having a starting index and an ending index. The region that has been received is stored in the cache in accordance with a cache invariant. The cache invariant guarantees that at any given point in time the regions in the cache are stored in a given order and none of the regions are completely contained within any other of the regions.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 22, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: UMAN CHAN, Deryck X. Hong, Tsai-Yang Jea, Hanhong Xue