Patents by Inventor David Ku

David Ku 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: 8849796
    Abstract: A method and apparatus for generating search results including searching by subdomain and providing sponsored results by subdomain is provided. A search system according to embodiments of the present invention analyzes search queries to determine if they are to be routed to subdomains and presents results include sponsored hits sponsored on a subdomain by subdomain basis.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 30, 2014
    Assignee: Yahoo! Inc.
    Inventors: Ali Diab, Scott A. Gatz, Shyam Kapur, David Ku, Chuck Kung, Phu Hoang, Qi Lu, Lynne Pogue, Yuan Kui Shen, Norman Shi, Thai Tran, Eckart Walther, Jeff Weiner
  • Publication number: 20140289232
    Abstract: Computer systems and methods incorporate user annotations (metadata) regarding various pages or sites, including annotations by a querying user and by members of a trust network defined for the querying user into search and browsing of a corpus such as the World Wide Web. A trust network is defined for each user, and annotations by any member of a first user's trust network are made visible to the first user during search and/or browsing of the corpus. Users can also limit searches to content annotated by members of their trust networks or by members of a community selected by the user.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 25, 2014
    Applicant: Yahoo! Inc.
    Inventors: Qi Lu, Eckart Walther, David Ku, Chung-Man Tam, Kevin Lee, Zhichen Xu, Ali Diab, Kenneth Norton, Jianchang Mao
  • Patent number: 8788492
    Abstract: Computer systems and methods incorporate user annotations (metadata) regarding various pages or sites, including annotations by a querying user and by members of a trust network defined for the querying user into search and browsing of a corpus such as the World Wide Web. A trust network is defined for each user, and annotations by any member of a first user's trust network are made visible to the first user during search and/or browsing of the corpus. Users can also limit searches to content annotated by members of their trust networks or by members of a community selected by the user.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: July 22, 2014
    Assignee: Yahoo!, Inc.
    Inventors: Qi Lu, Eckart Walther, David Ku, Chung-Man Tam, Kevin Lee, Zhichen Xu, Ali Diab, Kenneth Norton, Jianchang Mao
  • Publication number: 20140195508
    Abstract: A search query is received. Personal information for a user is then determined. A search is performed in a general subdomain of general content using the search query. For example, the general subdomain of general content may be a WWW search. Then, a vertical subdomain is determined based on the personal information. A search is then performed in the vertical subdomain of specialized content using the search query. The search performed in the general subdomain and the search performed in the vertical subdomain generate general search results and vertical search results. The results may be combined and outputted to a client.
    Type: Application
    Filed: March 12, 2014
    Publication date: July 10, 2014
    Applicant: Yahoo! Inc.
    Inventors: Qi Lu, John Thrall, David Ku
  • Publication number: 20140195511
    Abstract: A search query is received. Personal information for a user is then determined. A search is performed in a general subdomain of general content using the search query. For example, the general subdomain of general content may be a WWW search. Then, a vertical subdomain is determined based on the personal information. A search is then performed in the vertical subdomain of specialized content using the search query. The search performed in the general subdomain and the search performed in the vertical subdomain generate general search results and vertical search results. The results may be combined and outputted to a client.
    Type: Application
    Filed: March 12, 2014
    Publication date: July 10, 2014
    Applicant: Yahoo! Inc.
    Inventors: Qi Lu, John Thrall, David Ku
  • Patent number: 8732169
    Abstract: A search query is received. Personal information for a user is then determined. A search is performed in a general subdomain of general content using the search query. For example, the general subdomain of general content may be a WWW search. Then, a vertical subdomain is determined based on the personal information. A search is then performed in the vertical subdomain of specialized content using the search query. The search performed in the general subdomain and the search performed in the vertical subdomain generate general search results and vertical search results. The results may be combined and outputted to a client.
    Type: Grant
    Filed: November 11, 2012
    Date of Patent: May 20, 2014
    Assignee: Yahoo! Inc.
    Inventors: Qi Lu, David Ku, John Thrall
  • Publication number: 20140114947
    Abstract: Computer systems and methods allow users to annotate content items found in a corpus such as the World Wide Web. Annotations, which can include any descriptive and/or evaluative metadata related to a document, are collected from a user and stored in association with that user. Users are able to annotate and view their annotations for any document they encounter while interacting with the corpus, including hits returned in a search of the corpus. Users are also able to search their annotations or to limit searches to documents they have annotated. Metadata from annotations can also be aggregated across users and aggregated metadata applied in generating search results.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 24, 2014
    Applicant: Yahoo! Inc.
    Inventors: Eckart Walther, Qi Lu, David Ku, Kevin Lee, Chung-Man Tam, Ali Diab
  • Publication number: 20140108387
    Abstract: Inverse search systems and methods operate on identifiers of content items in a corpus such as the World Wide Web In an inverse search, the user submits a query that includes an identifier of a target content item in the corpus and receives information (metadata) about the target content item being returned to the user. Many types of metadata can be returned, including ratings or other metadata related to the target content item obtained from users, popularity data specific to the target content item, information about previously submitted forward search queries that led to the target content item being identified as a hit, and metadata extracted from the target content item.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 17, 2014
    Applicant: Yahoo! Inc.
    Inventors: Ali Diab, David Ku, Kevin Lee, Qi Lu, Nam Nguyen, Eckart Walther
  • Patent number: 8612417
    Abstract: Inverse search systems and methods operate on identifiers of content items in a corpus such as the World Wide Web In an inverse search, the user submits a query that includes an identifier of a target content item in the corpus and receives information (metadata) about the target content item being returned to the user. Many types of metadata can be returned, including ratings or other metadata related to the target content item obtained from users, popularity data specific to the target content item, information about previously submitted forward search queries that led to the target content item being identified as a hit, and metadata extracted from the target content item.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 17, 2013
    Assignee: Yahoo! Inc.
    Inventors: Ali Diab, David Ku, Kevin Lee, Qi Lu, Nam Nguyen, Eckart Walther
  • Patent number: 8521734
    Abstract: Embodiments of the present invention provide systems and methods for ranking a result set. The method according to one embodiment comprises selecting an item from the result set, selecting a user profile from one or more user profiles and selecting one or more items of personalized information from the selected user profile. A rank is calculated for the item on the basis of the selected one or more items of personalized information and the selected item in the result set is ranked in accordance with the calculated rank.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: August 27, 2013
    Assignee: Yahoo! Inc.
    Inventors: Eckart Walther, Qi Lu, David Ku, Zhichen Xu, Chung-Man Tam, Pavel Berkin, Dan Rose, Jiangchang Mao
  • Publication number: 20130071271
    Abstract: A valveless, pulsatile, non-contact, positive displacement, finger-pump for pumping one or more fluids is disclosed. The pump can include one or more channels for holding one or more lengths of flexible tubing. The channels can include an adjustment mechanism and/or a resilient backing plate to reduce over compression of the tubing. The pump can utilize a plurality of profiled, pivoting fingers to sequentially occlude a length of tubing causing a pumping action. The fingers can be moved from the first position to the second position by a motor driven camshaft. Cam lobes disposed on the camshaft can be a modified eccentric design to improve tube occlusion and pump efficiency. At least one cam lobe can completely occlude the tubing at all times during operation to prevent backflow. The fingers can alternatively be moved from the first position to the second position by a variety of linear actuators.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 21, 2013
    Inventors: David Rosen, David Ku, Jane Kang
  • Patent number: 8396853
    Abstract: Inverse search systems and methods operate on identifiers of content items in a corpus such as the World Wide Web In an inverse search, the user submits a query that includes an identifier of a target content item in the corpus and receives information (metadata) about the target content item being returned to the user. Many types of metadata can be returned, including ratings or other metadata related to the target content item obtained from users, popularity data specific to the target content item, information about previously submitted forward search queries that led to the target content item being identified as a hit, and metadata extracted from the target content item.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: March 12, 2013
    Assignee: Yahoo! Inc.
    Inventors: Ali Diab, David Ku, Kevin Lee, Qi Lu, Nam Nguyen, Eckart Walther
  • Publication number: 20120330949
    Abstract: A method and apparatus for generating search results including searching by subdomain and providing sponsored results by subdomain is provided. A search system according to embodiments of the present invention analyzes search queries to determine if they are to be routed to subdomains and presents results include sponsored hits sponsored on a subdomain by subdomain basis.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 27, 2012
    Inventors: ALI DIAB, Scott A. Gatz, Shyam Kapur, David Ku, Chuck kung, Phu Hoang, Qui Lu, Lynne Pogue, Yuan Kui Shen, Norman Shi, Thai Tran, Eckart Walther, Jeff Weiner
  • Patent number: 8312014
    Abstract: A search query is received. Personal information for a user is then determined. A search is performed in a general subdomain of general content using the search query. For example, the general subdomain of general content may be a WWW search. Then, a vertical subdomain is determined based on the personal information. A search is then performed in the vertical subdomain of specialized content using the search query. The search performed in the general subdomain and the search performed in the vertical subdomain generate general search results and vertical search results. The results may be combined and outputted to a client.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: November 13, 2012
    Assignee: Yahoo! Inc.
    Inventors: Qi Lu, John Thrall, David Ku
  • Patent number: 8271480
    Abstract: A method and apparatus for generating search results including searching by subdomain and providing sponsored results by subdomain is provided. A search system according to embodiments of the present invention analyzes search queries to determine if they are to be routed to subdomains and presents results include sponsored hits sponsored on a subdomain by subdomain basis.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: September 18, 2012
    Assignee: Yahoo! Inc.
    Inventors: Ali Diab, Scott A. Gatz, Shyam Kapur, David Ku, Chuck Kung, Phu Hoang, Qi Lu, Lynne Pogue, Yuan Kui Shen, Norman Shi, Thai Tran, Eckart Walther, Jeff Weiner
  • Publication number: 20120233161
    Abstract: Embodiments of the present invention provide systems and methods for ranking a result set. The method according to one embodiment comprises selecting an item from the result set, selecting a user profile from one or more user profiles and selecting one or more items of personalized information from the selected user profile. A rank is calculated for the item on the basis of the selected one or more items of personalized information and the selected item in the result set is ranked in accordance with the calculated rank.
    Type: Application
    Filed: July 28, 2011
    Publication date: September 13, 2012
    Applicant: YAHOO! INC.
    Inventors: Zhichen Xu, Pavel Berkhin, Daniel E. Rose, Jiangchang Mao, David Ku, Qi Lu, Eckart Walther, Chung-Man Tam
  • Publication number: 20120233154
    Abstract: Computer systems and methods allow users to annotate content items found in a corpus such as the World Wide Web Annotations, which can include any descriptive and/or evaluative metadata related to a document, are collected from a user and stored in association with that user. Users are able to annotate and view their annotations for any document they encounter while interacting with the corpus, including hits returned in a search of the corpus. Users are also able to search their annotations or to limit searches to documents they have annotated. Metadata from annotations can also be aggregated across users and aggregated metadata applied in generating search results.
    Type: Application
    Filed: July 28, 2011
    Publication date: September 13, 2012
    Applicant: YAHOO! INC.
    Inventors: Eckart Walther, Qi Lu, David Ku, Kevin Lee, Chung-Man Tam, Ali Diab
  • Publication number: 20120173505
    Abstract: Inverse search systems and methods operate on identifiers of content items in a corpus such as the World Wide Web In an inverse search, the user submits a query that includes an identifier of a target content item in the corpus and receives information (metadata) about the target content item being returned to the user. Many types of metadata can be returned, including ratings or other metadata related to the target content item obtained from users, popularity data specific to the target content item, information about previously submitted forward search queries that led to the target content item being identified as a hit, and metadata extracted from the target content item.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Inventors: Ali Diab, David Ku, Kevin Lee, Qi Lu, Nam Nguyen, Eckart Walther
  • Patent number: 8150825
    Abstract: Inverse search systems and methods operate on identifiers of content items in a corpus such as the World Wide Web In an inverse search, the user submits a query that includes an identifier of a target content item in the corpus and receives information (metadata) about the target content item being returned to the user. Many types of metadata can be returned, including ratings or other metadata related to the target content item obtained from users, popularity data specific to the target content item, information about previously submitted forward search queries that led to the target content item being identified as a hit, and metadata extracted from the target content item.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: April 3, 2012
    Assignee: Yahoo! Inc.
    Inventors: Ali Diab, David Ku, Kevin Lee, Qi Lu, Nam Nguyen, Eckart Walther
  • Patent number: 8086605
    Abstract: Embodiments of the present invention provide systems and methods for ranking a result set. The method according to one embodiment comprises selecting an item from the result set, selecting a user profile from one or more user profiles and selecting one or more items of personalized information from the selected user profile. A rank is calculated for the item on the basis of the selected one or more items of personalized information and the selected item in the result set is ranked in accordance with the calculated rank.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: December 27, 2011
    Assignee: Yahoo! Inc.
    Inventors: Zhichen Xu, Pavel Berkhin, Daniel E. Rose, Jianchang Mao, David Ku, Qi Lu, Eckart Walther, Chung-Man Tam