Patents by Inventor April Hunter

April Hunter 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).

  • Network protocol for wireless broadband ISDN using ATM
    Patent number: 6282187
    Abstract: A networking method for a wireless point base station to a plurality of users where the users are stationary and which utilizes time-division multiplexing in the downstream direction of the base station to the user, including downstream frame timing, comprising providing time-division multiple access in the upstream direction of the user to the base station. Medium access is achieved by actively controlling assigning frame time slots in the upstream direction to accommodate varying demands for bandwidth by multiple users. The upstream frame time slots are synchronized to the downstream frame timing, the time slots carrying individual ATM cells, the first time slot of the downstream frame carries a frame start ATM cell. Upstream time slot synchronization is maintained to within ±2 modulation symbols through timing control from the base station to the user.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: August 28, 2001
    Assignee: Stanford Telecommunications, Inc.
    Inventors: Allan Evans, Charles VanBlaricom, April Hunter
  • Network protocol for wireless broadband-ISDN using ATM
    Patent number: 6151312
    Abstract: A network protocol for the delivery of wireless broadband integrated services digital network (ISDN) using asynchronous transfer mode (ATM).
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: November 21, 2000
    Assignee: Stanford Telecommunications, Inc.
    Inventors: Allan Evans, April Hunter, Charles Van Blaricom, Joel Williams, Aki Shohara
  • System for the delivery of wireless broadband integrated services digital network (ISDN) using asynchronous transfer mode (ATM)
    Patent number: 5886989
    Abstract: A system for the delivery of wireless broadband integrated services digital network (ISDN) using asynchronous transfer mode (ATM).
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: March 23, 1999
    Assignee: Stanford Telecommunications, Inc.
    Inventors: Allan Evans, April Hunter, Charles VanBlaricom, Joel Williams, Aki Shohara
  • Network protocol for wireless broadband ISDN using ATM
    Patent number: 5751702
    Abstract: A networking protocol for wireless point (base station) to multipoint (user) networks where the users are stationary which utilized time-division multiplexing the in the direction of the base station to the user, heretofore called the downstream direction, and time-division multiple access in the direction of the user to the base station, heretofore called the upstream direction, where medium access control actively assigns time slots in the upstream direction to accommodate varying demands for bandwidth by multiple users, where upstream frame timing is synchronized to the downstream frame timing, where time slots carry individual ATM cells, where the first time slot of the downstream frame carries a frame start ATM cell, where upstream time slot synchronization is maintained to within .+-.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: May 12, 1998
    Assignee: Stanford Telecommunications, Inc.
    Inventors: Allan Evans, Charles Van Blaricom, April Hunter