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: 6445911
    Abstract: 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: Grant
    Filed: December 30, 1998
    Date of Patent: September 3, 2002
    Assignee: AT&T Corp
    Inventors: Albert Chow, Robert Raymond Miller, II, Jesse Eugene Russell, Spencer Wang, Wenchu Ying
  • Publication number: 20020058495
    Abstract: 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: Application
    Filed: December 30, 1998
    Publication date: May 16, 2002
    Inventors: ALBERT CHOW, ROBERT RAYMOND MILLER II, JESSE EUGENE RUSSELL, SPENCER WANG, WENCHU YING
  • Patent number: 6243572
    Abstract: 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: Grant
    Filed: December 30, 1998
    Date of Patent: June 5, 2001
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jesse Eugene Russell, Spencer Wang, Wenchu Ying