Patents by Inventor Chin-Chuan Chiu

Chin-Chuan Chiu 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: 8818360
    Abstract: Methods, systems, and computer program products for integrating roaming control in a signaling message routing node are disclosed. In one exemplary implementation, a method for providing roaming control at a signaling message routing node is provided. The method includes receiving a signaling message at a signaling message routing node in a network of a home service provider of a mobile subscriber, the signaling message being generated in response to the mobile subscriber registering in a foreign carrier's network. It is determined whether the mobile subscriber is allowed, by the home service provider, to roam in the foreign carrier's network. In response to determining that mobile subscriber is not allowed to roam in the foreign carrier's network, a response to the signaling message is generated and sent, where the response indicates that mobile subscriber is not allowed to roam in a foreign carrier's network. The steps of the method are performed at a signaling message routing node.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: August 26, 2014
    Assignee: Tekelec Global, Inc.
    Inventors: Devesh Agarwal, Chin-Chuan Chiu
  • Patent number: 7466807
    Abstract: Methods, systems, and computer program products for offloading prepaid credit status queries from prepaid credit status databases for unlimited-plan prepaid in-network calls is provided. According to one aspect, the subject matter described herein includes a method that includes intercepting, at a signaling message routing node, a prepaid status query associated with a call originated by a calling subscriber and directed to a called subscriber. The signaling node then determines whether the calling subscriber is associated with an unlimited calling plan, unlimited text messaging plan, unlimited multimedia messaging plan, or a combination of plans based on the intercepted prepaid status query. The node also determines whether the call is an in-network call based on the intercepted prepaid status query, where an in-network call includes a call between a calling subscriber and a called subscriber belonging to the same network.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: December 16, 2008
    Assignee: Tekelec
    Inventors: Thomas M. McCann, Devesh Agarwal, Chin-Chuan Chiu, Peter J. Marsico
  • Publication number: 20070286367
    Abstract: Methods, systems, and computer program products for offloading prepaid credit status queries from prepaid credit status databases for unlimited-plan prepaid in-network calls is provided. According to one aspect, the subject matter described herein includes a method that includes intercepting, at a signaling message routing node, a prepaid status query associated with a call originated by a calling subscriber and directed to a called subscriber. The signaling node then determines whether the calling subscriber is associated with an unlimited calling plan, unlimited text messaging plan, unlimited multimedia messaging plan, or a combination of plans based on the intercepted prepaid status query. The node also determines whether the call is an in-network call based on the intercepted prepaid status query, where an in-network call includes a call between a calling subscriber and a called subscriber belonging to the same network.
    Type: Application
    Filed: March 15, 2007
    Publication date: December 13, 2007
    Inventors: Thomas McCann, Devesh Agarwal, Chin-Chuan Chiu, Peter Marsico
  • Publication number: 20070218898
    Abstract: Methods, systems, and computer program products for integrating roaming control in a signaling message routing node are disclosed. In one exemplary implementation, a method for providing roaming control at a signaling message routing node is provided. The method includes receiving a signaling message at a signaling message routing node in a network of a home service provider of a mobile subscriber, the signaling message being generated in response to the mobile subscriber registering in a foreign carrier's network. It is determined whether the mobile subscriber is allowed, by the home service provider, to roam in the foreign carrier's network. In response to determining that mobile subscriber is not allowed to roam in the foreign carrier's network, a response to the signaling message is generated and sent, where the response indicates that mobile subscriber is not allowed to roam in a foreign carrier's network. The steps of the method are performed at a signaling message routing node.
    Type: Application
    Filed: March 15, 2007
    Publication date: September 20, 2007
    Inventors: Devesh Agarwal, Chin-Chuan Chiu