Patents by Inventor Wenchu Ying

Wenchu Ying 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: 7590422
    Abstract: A method and apparatus for providing telephone call hand offs between a local cordless service and a different wireless cellular service such as a macro-cellular service. The local cordless service may be configured such that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless services to conventional personal communications services and pay air time charges.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: September 15, 2009
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
  • Publication number: 20090161631
    Abstract: Embodiments of a system and method of providing broadband telecommunication services over a packet-switched network enable enhanced personalization. A mobile terminal is registered in a first remote environment, where the mobile terminal has a home environment and a home service capability. The telecommunication services are provided to the mobile terminal in the first remote environment in accordance with the home service capability.
    Type: Application
    Filed: February 23, 2009
    Publication date: June 25, 2009
    Inventors: Albert Chow, Kenny Xiaojian Huang, Jinman Kim, Wenchu Ying
  • Patent number: 7496102
    Abstract: Embodiments of a system and method of providing broadband telecommunication services over a packet-switched network enable enhanced personalization. A mobile terminal is registered in a first remote environment, where the mobile terminal has a home environment and a home service capability. The telecommunication services are provided to the mobile terminal in the first remote environment in accordance with the home service capability.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: February 24, 2009
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Kenny Xiaojian Huang, Jinman Kim, Wenchu Ying
  • Patent number: 7257404
    Abstract: A method and apparatus for providing telephone call hand offs between a local cordless service and a different wireless cellular service such as a macro-cellular service. The local cordless service may be configured such that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless services to conventional personal communications services and pay air time charges.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: August 14, 2007
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
  • Patent number: 7181207
    Abstract: A method for providing a local cordless-type service comprises the steps of receiving subscriber neighborhood zone selection input so that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless-type services to conventional personal communications services and pay air time charges. However for an active call, no air-time charges are incurred as the user transitions between the cellular/DPCS environment and the local cordless service environment.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: February 20, 2007
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Spencer Wang, Wenchu Ying
  • Publication number: 20060209795
    Abstract: The present invention sets forth a network-centric service distribution architecture that integrates a wireless access system in the residence, SOHO, business or public environment through the use of a local broadband network, such as a Residential-Business Broadband Network (RBN), to the service provider's broadband transport network and to a service provider's broadband packet network. The system includes Media Terminal Adapter is coupled via the RBN to the access port(s) and via the service provider's broadband transport network to the service provider's broadband packet network. The access port is coupled to the Media Terminal Adapter via either a RBN (e.g., a Local Area Network—LAN) or simply via a traditional POTS line interface. The access port receives and sends wireless signals to a plurality of RBN devices, allowing the user to control theses devices remotely from the residence, business, SOHO or public environments.
    Type: Application
    Filed: August 31, 2005
    Publication date: September 21, 2006
    Inventors: Albert Chow, Richard Erving, Jinman Kim, Robert Miller, Jesse Russell, Wenchu Ying
  • Patent number: 7103347
    Abstract: Automatic activation of a wireless device with a first wireless communication system occurs within an area having an overlapping second wireless communication system. Operation of the first communication system access procedure is achieved by masking an access and authentication process for the second communication system from interference from the control signal levels of the second wireless communication system. During the first time access, the first communication system is supplied with the SID and MIN and ESN numbers for authentication and access.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: September 5, 2006
    Assignee: AT&T Corp.
    Inventors: Albert T. Chow, Richard Henry Erving, Robert Raymond Miller, II, Christopher W Rice, Jesse Eugene Russell, Wenchu Ying
  • Patent number: 7010002
    Abstract: The present invention sets forth a network-centric service distribution architecture and method that integrates a wireless access system/service in the residence, SOHO, business or public environment through the use of a local broadband network, such as a Residential-Business Broadband Network (RBN), to the service provider's broadband transport network and to a service provider's broadband packet network that facilitates end-to-end packet telecommunication services. Access functions for connecting said service provider's broadband packet network to the RBN via said service provider's broadband transport network are provided. Call and service termination functions to a plurality of local RBN devices are also provided. Signals from a plurality of wireless devices are accepted and forwarded to an IEEE 802.11b interface for a wireless modem and/or to an Ethernet interface for a Voice over Internet Protocol (VOIP)/Ethernet Processor, where the forwarded signals comprise intranet telephony and data.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: March 7, 2006
    Assignee: AT&T Corp.
    Inventors: Albert T. Chow, Robert Raymond Miller, II, Jesse E. Russell, Wenchu Ying, Jinman Kim, Richard Henry Erving
  • Patent number: 7002995
    Abstract: The present invention sets forth a network-centric service distribution architecture that integrates a wireless access system in the residence, SOHO, business or public environment through the use of a local broadband network, such as a Residential-Business Broadband Network (RBN), to the service provider's broadband transport network and to a service provider's broadband packet network. The system includes a Media Terminal Adapter coupled via the RBN to the access port(s) and via the service provider's broadband transport network to the service provider's broadband packet network. The access port is coupled to the Media Terminal Adapter via either an RBN (e.g., a Local Area Network—LAN) or simply via a traditional POTS line interface. The access port receives and sends wireless signals to a plurality of RBN devices, allowing the user to control these devices remotely from the residence, business, SOHO or public environments.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: February 21, 2006
    Assignee: AT&T Corp.
    Inventors: Albert T. Chow, Richard Henry Erving, Jinman Kim, Robert Raymond Miller, II, Jesse E. Russell, Wenchu Ying
  • Patent number: 6980817
    Abstract: A method for providing a local cordless-type service comprises the steps of receiving subscriber neighborhood zone selection input so that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless-type services to conventional personal communications services and pay air time charges. However for an active call, no air-time charges are incurred as the user transitions between the cellular/DPCS environment and the local cordless service environment.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: December 27, 2005
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Spencer Wang, Wenchu Ying
  • Patent number: 6975634
    Abstract: Integration of packet/cell networking of a wired/wireless network with ATM is achieved by application of a distributed architecture including an ATM network adapted to provide such integration. Network and protocol conversion between the wired/wireless network and the ATM network is performed by a gateway (GAGW) having capabilities to perform this function. A mobility server platform (MSP) handles routing between the gateways to other networks and the micro-mobility functions of the wireless base stations directly connected to the ATM network. A Inter-working function (IWF) element connects base stations (BS) or mobile switching centers (MSC) to ATM switch/routers and in the process provides various protocol conversions necessary to integrate various services into the ATM backbone. The integration of these networks is seamless with little apparent affect on the end point users of the ATM network on the overall system.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: December 13, 2005
    Assignee: AT&T Corp.
    Inventors: Albert T. Chow, Jinman Kim, Robert Raymond Miller, II, Wenchu Ying
  • Patent number: 6819945
    Abstract: The instant invention discloses a method and system for providing a novel wireless centrex service that untethers subscribers from the immobility associated with traditional desktop telephones. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. In accordance with the invention, a wireless telephone subscriber can use a standard cellular/PCS telephone as a wireless extension of their desktop phone, while in the proximity of a miniature radio base station capable of communicating with the PCS/cellular telephone. The advantage of such a system is that a subscriber can use the same cellular/PCS telephone that provides service in the public network in the wireless centrex environment. Additionally, the wireless centrex system provides services and features which are similar to those offered to regular centrex telephone subscribers.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: November 16, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
  • Patent number: 6785560
    Abstract: The instant invention discloses a method and system for providing a novel wireless centrex service that untethers subscribers from the immobility associated with traditional desktop telephones. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. In accordance with the invention, a wireless telephone subscriber can use a standard cellular/PCS telephone as a wireless extension of their desktop phone, while in the proximity of a miniature radio base station capable of communicating with the PCS/cellular telephone. The advantage of such a system is that a subscriber can use the same cellular/PCS telephone that provides service in the public network in the wireless centrex environment. Additionally, the wireless centrex system provides services and features which are similar to those offered to regular centrex telephone subscribers.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: August 31, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
  • Patent number: 6778832
    Abstract: A method and apparatus for providing telephone call hand offs between a local cordless service and a different wireless cellular service such as a macro-cellular service. The local cordless service may be configured such that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless services to conventional personal communications services and pay air time charges.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: August 17, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
  • Patent number: 6771953
    Abstract: The instant invention discloses a method and system for providing a novel wireless centrex service that untethers subscribers from the immobility associated with traditional desktop telephones. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. In accordance with the invention, a wireless telephone subscriber can use a standard cellular/PCS telephone as a wireless extension of their desktop phone, while in the proximity of a miniature radio base station capable of communicating with the PCS/cellular telephone. The advantage of such a system is that a subscriber can use the same cellular/PCS telephone that provides service in the public network in the wireless centrex environment. Additionally, the wireless centrex system provides services and features which are similar to those offered to regular centrex telephone subscribers.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: August 3, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
  • Patent number: 6745025
    Abstract: The instant invention discloses a method and system for providing a novel wireless centrex service that untethers subscribers from the immobility associated with traditional desktop telephones. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. In accordance with the invention, a wireless telephone subscriber can use a standard cellular/PCS telephone as a wireless extension of their desktop phone, while in the proximity of a miniature radio base station capable of communicating with the PCS/cellular telephone. The advantage of such a system is that a subscriber can use the same cellular/PCS telephone that provides service in the public network in the wireless centrex environment. Additionally, the wireless centrex system provides services and features which are similar to those offered to regular centrex telephone subscribers.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: June 1, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
  • Patent number: 6738615
    Abstract: The instant invention discloses a method and system for providing a novel wireless centrex service that untethers subscribers from the immobility associated with traditional desktop telephones. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. In accordance with the invention, a wireless telephone subscriber can use a standard cellular/PCS telephone as a wireless extension of their desktop phone, while in the proximity of a miniature radio base station capable of communicating with the PCS/cellular telephone. The advantage of such a system is that a subscriber can use the same cellular/PCS telephone that provides service in the public network in the wireless centrex environment. Additionally, the wireless centrex system provides services and features which are similar to those offered to regular centrex telephone subscribers.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: May 18, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
  • Patent number: 6711401
    Abstract: A communications system includes a dual mode mobile station and a home base station. Dual mode mobile station is operable selectively in CDMA and analog modes. Home base station includes circuitry for establishing wireless communications with mobile station in the analog mode, and circuitry for establishing communications with a wireline communications system, the base station allowing an exchange of information between mobile station and wireline system in the analog mode.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: March 23, 2004
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
  • Publication number: 20040053600
    Abstract: Automatic activation of a wireless device with a first wireless communication system occurs within an area having an overlapping second wireless communication system. Operation of the first communication system access procedure is achieved by masking an access and authentication process for the second communication system from interference from the control signal levels of the second wireless communication system. During the first time access, the first communication system is supplied with the SID and MIN and ESN numbers for authentication and access.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 18, 2004
    Inventors: Albert T. Chow, Richard Henry Erving, Robert Raymond Miller, Christopher W. Rice, Jesse Eugene Russell, Wenchu Ying
  • Publication number: 20030227927
    Abstract: Embodiments of a system and method of providing broadband telecommunication services over a packet-switched network enable enhanced personalization. A mobile terminal is registered in a first remote environment, where the mobile terminal has a home environment and a home service capability. The telecommunication services are provided to the mobile terminal in the first remote environment in accordance with the home service capability.
    Type: Application
    Filed: June 7, 2002
    Publication date: December 11, 2003
    Inventors: Albert Chow, Kenny Xiaojian Huang, Jinman Kim, Wenchu Ying