Patents by Inventor Douglas Lin

Douglas Lin 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: 8831201
    Abstract: A method and apparatus for managing ENUM records is disclosed. An apparatus that incorporates teachings of the present disclosure may include, for example, a broker having a detection element that detects a Resource Record (RR) submission made by an IP Multimedia Subsystem (IMS), and a comparison element that retrieves from an object-oriented data storage element a zone associated with the RR, identifies a Domain Name Server (DNS) responsible for processing said zone, compares the zone with a volatile memory of the DNS, and updates the volatile memory according to one or more differences detected. Additional embodiments are disclosed.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: September 9, 2014
    Assignee: AT&T Intellectual Property I, LP
    Inventors: Bernard Ku, James Forsyth, Douglas Lin, John Richardson, Armstrong Soo
  • Patent number: 8767589
    Abstract: A method and an apparatus for providing privacy for a telephone number in a network are disclosed. The method receives a call associated with a disposable telephone number, and determines a call processing feature for the disposable phone number in accordance with a filtering function. The method then processes the call in accordance with the call processing feature for the disposable phone number.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: July 1, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bernard Ku, Armstrong Soo, Douglas Lin
  • Patent number: 8654962
    Abstract: A system and method of delivering ringback audio content are disclosed. In one embodiment, the method includes receiving a connection request at an originating serving call session control function (S-CSCF) network element. The connection request indicates that a caller device has placed a call to a destination device associated with a ringback audio content service subscriber. The method also includes receiving a plurality of naming authority pointer (NAPTR) records at the originating S-CSCF network element from a telephone number mapping (ENUM) server. The NAPTR records include a plurality of ringback audio uniform resource indicators (URIs) associated with the destination device. The method also includes modifying the connection request to include the plurality of ringback audio URIs.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: February 18, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bernard Ku, Mehrad Yasrebi, Douglas Lin
  • Publication number: 20130230161
    Abstract: A system and method of delivering ringback audio content are disclosed. In one embodiment, the method includes receiving a connection request at an originating serving call session control function (S-CSCF) network element. The connection request indicates that a caller device has placed a call to a destination device associated with a ringback audio content service subscriber. The method also includes receiving a plurality of naming authority pointer (NAPTR) records at the originating S-CSCF network element from a telephone number mapping (ENUM) server. The NAPTR records include a plurality of ringback audio uniform resource indicators (URIs) associated with the destination device. The method also includes modifying the connection request to include the plurality of ringback audio URIs.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 5, 2013
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Bernard Ku, Mehrad Yasrebi, Douglas Lin
  • Patent number: 8401169
    Abstract: A system and method of delivering ringback audio content are disclosed. In one embodiment, the method includes receiving a connection request at an originating serving call session control function (S-CSCF) network element. The connection request indicates that a caller device has placed a call to a destination device associated with a ringback audio content service subscriber. The method also includes receiving a plurality of naming authority pointer (NAPTR) records at the originating S-CSCF network element from a telephone number mapping (ENUM) server. The NAPTR records include a plurality of ringback audio uniform resource indicators (URIs) associated with the destination device. The method also includes modifying the connection request to include the plurality of ringback audio URIs.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: March 19, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bernard Ku, Mehrad Yasrebi, Douglas Lin
  • Publication number: 20100098234
    Abstract: A method and an apparatus for providing privacy for a telephone number in a network are disclosed. The method receives a call associated with a disposable telephone number, and determines a call processing feature for the disposable phone number in accordance with a filtering function. The method then processes the call in accordance with the call processing feature for the disposable phone number.
    Type: Application
    Filed: October 22, 2008
    Publication date: April 22, 2010
    Inventors: BERNARD KU, ARMSTRONG SOO, DOUGLAS LIN
  • Publication number: 20090161853
    Abstract: A system and method of delivering ringback audio content are disclosed. In one embodiment, the method includes receiving a connection request at an originating serving call session control function (S-CSCF) network element. The connection request indicates that a caller device has placed a call to a destination device associated with a ringback audio content service subscriber. The method also includes receiving a plurality of naming authority pointer (NAPTR) records at the originating S-CSCF network element from a telephone number mapping (ENUM) server. The NAPTR records include a plurality of ringback audio uniform resource indicators (URIs) associated with the destination device. The method also includes modifying the connection request to include the plurality of ringback audio URIs.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Applicant: AT&T KNOWLEDGE VENTURES, LP
    Inventors: Bernard Ku, Mehrad Yasrebi, Douglas Lin
  • Publication number: 20080037757
    Abstract: A method and apparatus for managing ENUM records is disclosed. An apparatus that incorporates teachings of the present disclosure may include, for example, a broker having a detection element that detects a Resource Record (RR) submission made by an IP Multimedia Subsystem (IMS), and a comparison element that retrieves from an object-oriented data storage element a zone associated with the RR, identifies a Domain Name Server (DNS) responsible for processing said zone, compares the zone with a volatile memory of the DNS, and updates the volatile memory according to one or more differences detected. Additional embodiments are disclosed.
    Type: Application
    Filed: August 10, 2006
    Publication date: February 14, 2008
    Applicant: SBC KNOWLEDGE VENTURES, L.P.
    Inventors: BERNARD KU, JAMES FORSYTH, DOUGLAS LIN, JOHN RICHARDSON, ARMSTRONG SOO