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).
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Publication number: 20030228869Abstract: Embodiments of a system and method of supporting a broadband telecommunication service enable enhanced mobility and personalization. Storage of registration information to a memory of a portable upgrade module is permitted, and a registration message is transmitted over a packet switched network to a home network access server platform (NASP) based on the registration information. The home NASP is associated with a home environment. A default service capability of a terminal located in a remote environment is upgraded based on a home service capability. The upgraded default service capability enables the terminal to receive the telecommunication service in accordance with the home service capability. In one embodiment, the portable upgrade module constitutes a smart card, and in another environment the module is a personal computer (PC) card.Type: ApplicationFiled: June 7, 2002Publication date: December 11, 2003Inventors: Albert Chow, Kenny Xiaojian Huang, Jinman Kim, Wenchu Ying
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Patent number: 6654603Abstract: 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: GrantFiled: December 13, 1999Date of Patent: November 25, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Spencer Wang, Wenchu Ying, Jinman Kim
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Patent number: 6654615Abstract: 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: GrantFiled: December 13, 1999Date of Patent: November 25, 2003Inventors: Albert Chow, Jinman Kim, Jesse Eugene Russell, Spencer Wang, Wenchu Ying
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Patent number: 6643504Abstract: Automatic activation (i.e., first time access) of digital wireless/cellular mobile telephones with a private/localized wireless/cellular system (i.e. a secondary system) occurs within an area having an overlapping macrocellular primary wireless communication system (i.e., a dominant system). Operation of the secondary access procedure is achieved by shielding/masking an access and authentication process for the secondary system from interference from the control signal levels of the dominant wireless communication system. During the first time access, the secondary system is supplied with the SID and MIN and ESN numbers for authentication and resultant access.Type: GrantFiled: July 10, 2000Date of Patent: November 4, 2003Assignee: AT&T Corp.Inventors: Albert T. Chow, Richard Henry Erving, Robert Raymond Miller, II, Christopher W. Rice, Jesse Eugene Russell, Wenchu Ying
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Patent number: 6643507Abstract: 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: GrantFiled: December 13, 1999Date of Patent: November 4, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
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Patent number: 6631258Abstract: 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: GrantFiled: December 13, 1999Date of Patent: October 7, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
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Publication number: 20030185203Abstract: A high bandwidth communications system for providing integrated voice, data, multimedia and other subscriber services and applications. Users of the system may select desired services on demand without intervention of the service provider. The services will then be provided over a high bandwidth pipe adequate to meet the needs of the requested services.Type: ApplicationFiled: March 24, 2003Publication date: October 2, 2003Applicant: AT&T Corp.Inventors: Albert Chow, Jesse Eugene Russell, Spencer Wang, Wenchu Ying
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Patent number: 6618600Abstract: 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: GrantFiled: December 13, 1999Date of Patent: September 9, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
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Patent number: 6606505Abstract: 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: GrantFiled: December 13, 1999Date of Patent: August 12, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
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Patent number: 6606493Abstract: 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: GrantFiled: December 13, 1999Date of Patent: August 12, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
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Patent number: 6594488Abstract: A method for providing a neighborhood or local cordless 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 neighborhood or local cordless 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 neighborhood or local cordless service environment.Type: GrantFiled: December 30, 1998Date of Patent: July 15, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Spencer Wang, Wenchu Ying
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Patent number: 6591115Abstract: 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: GrantFiled: December 13, 1999Date of Patent: July 8, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Jesse Eugene Russell, Spencer Wang, Wenchu Ying
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Patent number: 6587683Abstract: 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: GrantFiled: December 13, 1999Date of Patent: July 1, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
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Patent number: 6574470Abstract: 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: GrantFiled: December 13, 1999Date of Patent: June 3, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Hopeton Walker, Spencer Wang, Wenchu Ying
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Patent number: 6546253Abstract: 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: GrantFiled: December 30, 1998Date of Patent: April 8, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
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Patent number: 6535730Abstract: 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: GrantFiled: December 13, 1999Date of Patent: March 18, 2003Assignee: AT&T Corp.Inventors: Albert Chow, Jinman Kim, Spencer Wang, Wenchu Ying
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Publication number: 20020191557Abstract: 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. The 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 these, devices remotely from the residence, business, SOHO or public environments.Type: ApplicationFiled: June 14, 2001Publication date: December 19, 2002Inventors: Albert T. Chow, Richard Henry Erving, Jinman Kim, Robert R. Miller, Jesse E. Russell, Wenchu Ying
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Publication number: 20020191635Abstract: 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: ApplicationFiled: June 14, 2001Publication date: December 19, 2002Inventors: Albert T. Chow, Robert Raymond Miller, Jesse E. Russell, Wenchu Ying, Jinman Kim, Richard Henry Erving
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Patent number: 6470179Abstract: An automatic service selection feature in a local cordless services architecture. The local cordless services architecture is 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. 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: GrantFiled: December 30, 1998Date of Patent: October 22, 2002Assignee: AT&T Corp.Inventors: Albert Chow, Spencer Wang, Wenchu Ying
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Patent number: 6456839Abstract: A method for providing a local cordless 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 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: GrantFiled: August 18, 2000Date of Patent: September 24, 2002Assignee: AT&T Corp.Inventors: Albert Chow, Jesse Eugene Russell, Spencer Wang, Wenchu Ying