Patents by Inventor Terence J. Nelson

Terence J. Nelson 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).

  • Ion-implanted magnetic bubble memory with domain confinement rails
    Patent number: 4334291
    Abstract: Operating margins for major-minor magnetic bubble memories are improved by use of protective rails between minor loops to prevent loss of information due to stripout. The rails, as are the propagation paths, are defined by unimplanted regions in an otherwise ion-implanted layer. In another embodiment, unimplanted rectangular islands are used rather than rails.
    Type: Grant
    Filed: September 4, 1980
    Date of Patent: June 8, 1982
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Joseph E. Geusic, Dirk J. Muehlner, Terence J. Nelson
  • Ion-implanted magnetic bubble memory
    Patent number: 4283776
    Abstract: A gap between sets of contiguous discs defined by nonimplanted regions in an otherwise ion-implanted bubble layer allows an isolation between bubbles which leads to the achievement surprisingly close spacing between neighboring bubble paths. The misalignment of the gap axis with an axis of symmetry of the bubble layer is an important consideration in realizing the isolation.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: August 11, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Terence J. Nelson
  • Ion-implanted magnetic bubble memory with merge port
    Patent number: 4276614
    Abstract: A gap between sets of contiguous discs defined by unimplanted regions in an otherwise ion-implanted bubble layer allows a merge function to be achieved. The alignment of the gap axis with an axis of symmetry of the bubble layer and the width of the gap are important considerations in the performance of the merge.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: June 30, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Terence J. Nelson, Raymond Wolfe
  • Ion-implanted bubble memory with replicate port
    Patent number: 4253159
    Abstract: A replicator for an ion-implanted magnetic bubble memory includes an offset hairpin geometry. The conductor is associated with features in adjacent bubble paths which exhibit strong attracting poles at the same time. The conductor stretches the bubble between the attracting poles. The bubble is severed by the reorienting propagation field.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: February 24, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Terence J. Nelson
  • Ion-implanted bubble memory
    Patent number: 4249249
    Abstract: A magnetic bubble memory of the G-shaped organization is implemented by ion-implantation. Attractive operating margins are realized by the use of transfer-out arrangements which moves bubbles in parallel first to an auxiliary path and thereafter to the major loop in a manner to invert the data.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: February 3, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Peter I. Bonyhard, Terence J. Nelson