Patents by Inventor Ok Ryul Yang

Ok Ryul Yang 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 for providing a caller-based ringback tone sound in case of a non-subscribed called
    Patent number: 7072644
    Abstract: The present invention relates to a method for providing an arbitrary sound chosen by a subscriber instead of a conventional RBT, more particularly, to a method for providing a caller with an arbitrary sound chosen by the caller instead of an RBT in case that a called is not a subscriber of a called-based RBT replacement service. The present method comprises: a first step, conducted by an exchanger when a call is received from a terminal, of requesting a first trunk connection to other telephone communication network while requesting a second trunk connection to a sound providing means if it is confirmed that the calling terminal has subscribed to RBT replacement service and the called terminal is a subscriber of said other telephone communication network; and a second step, conducted by the sound providing means, of providing the calling terminal with an RBT-replacing sound set for the calling terminal through the exchanger.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: July 4, 2006
    Assignee: SK Telecom Co., Ltd.
    Inventors: Tae Ho Ahn, Yeong Tae No, Ok Ryul Yang, Jin Yong Choi
  • Method for providing a caller-based ringback tone sound in case of a non-subscribed called
    Publication number: 20060013377
    Abstract: The present invention relates to a method for providing an arbitrary sound chosen by a subscriber instead of a conventional RBT, more particularly, to a method for providing a caller with an arbitrary sound chosen by the caller instead of an RBT in case that a called is not a subscriber of a called-based RBT replacement service. The present method comprises: a first step, conducted by an exchanger when a call is received from a terminal, of requesting a first trunk connection to other telephone communication network while requesting a second trunk connection to a sound providing means if it is confirmed that the calling terminal has subscribed to RBT replacement service and the called terminal is a subscriber of said other telephone communication network; and a second step, conducted by the sound providing means, of providing the calling terminal with an RBT-replacing sound set for the calling terminal through the exchanger.
    Type: Application
    Filed: September 9, 2003
    Publication date: January 19, 2006
    Inventors: Tae Ahn, Yeong Tea No, Ok Ryul Yang, Jin Yong Choi