Patents by Inventor Yu-Ssu Chen

Yu-Ssu Chen 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).

  • Magnetic bubble propagate arrangement
    Patent number: 4014009
    Abstract: Improved magnetic bubble memory operation is achieved with an asymmetric half-disc design for a propagate pattern operative to move the bubbles in a "field-access" mode of operation. The pattern ensures the continuous presence of a elongated supportive magnetic pole geometry for the bubbles during operation.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: March 22, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Peter Istvan Bonyhard, Yu-Ssu Chen, James Lanson Smith
  • Magnetic bubble memory organization
    Patent number: 4007453
    Abstract: A magnetic bubble memory operative in the field-access mode is organized with separate read and write major channels accessing the same plurality of minor loops. The permalloy elements characteristic of field-access bubble memories define a novel swap function at each position at which data is moved between a stage of the write major channel and the associated minor loop. Improved data rates are achieved.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: February 8, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Peter Istvan Bonyhard, Yu-Ssu Chen, James Lanson Smith