Patents by Inventor Premala Chandra

Premala Chandra 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).

  • Superconducting fault-tolerant programmable memory cell incorporating Josephson junctions
    Patent number: 5629889
    Abstract: A superconducting fault-tolerant programmable read-only memory (SFT-PROM) cell stores information in the phases of superconducting wires in a Josephson array. The information is addressable and retrievable in a fault-tolerant manner due to the non local nature of the information stored. The coding and decoding process is content-addressable and parallel due to the multitude of interconnections, resulting in picosecond data access time. The SFT-PROM cell comprises superposed WRITE/READ arrays and a reset circuit that ensures multiple non-destructive read-out of data.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: May 13, 1997
    Assignee: NEC Research Institute, Inc.
    Inventors: Premala Chandra, Lev B. Loffe