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  • Author(s):
    James L. Massey
    Date Published:
    1976
    Record Visibility:
    Public
    Resource Type
    Conference Paper
  • 2

    Article

    Date Published:
    Oct-63
    Record Visibility:
    Public
  • Author(s):
    James L. Massey
    Date Published:
    1976
    Record Visibility:
    Public
    Resource Type
    Conference Paper
  • Date Published:
    Jul-64
    Record Visibility:
    Public
  • Date Published:
    Oct-65
    Record Visibility:
    Public
  • Date Published:
    Dec-67
    Record Visibility:
    Public
  • Author(s):
    James L. Massey, Daniel J. Costello, Jr.
    Date Published:
    1985-06-25
    Record Visibility:
    Public
    Resource Type
    Manuscript
  • Inventor(s):
    James L. Massey
    Patent Number:
    US 3402393
    Description:

    Digital error correcting coding techniques involving the sensing of conditions under which the decoder is operating. In one aspect a monitoring device counts the ones in the decoding decision and in certain parity checks corrected by those decisions. In another aspect the code is supplemented such that one actual decoding error can create a number of apparent errors or ones, which enables early detection of conditions beyond the capability of the decoder. In another aspect fades are detected …

    Date Issued:
    1968-09-17
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Jimmy K. Omura, James L. Massey
    Patent Number:
    US 4587627
    Description:

    Elements of the finite field GF(2.sup.m) are represented by a vector of m binary digits in such a way that multiplication can be performed by using the same logic function to compute each binary component of the product of two elements, squaring can be performed by logic circuitry that rotates the vector representing the element to be squared, and addition can be performed by logic circuitry that forms the modulo-two sum of the corresponding components of the two vectors representing the elem…

    Date Issued:
    1986-05-06
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    James L. Massey, Jimmy K. Omura
    Patent Number:
    US 4567600
    Description:

    A private message of m bits is conveyed from its sender to its receiver by transmission of a public message of m bits, transmission of a public reply of m bits, and another transmission of a public message of m bits such that only the intended receiver can easily recover the private message from the three public messages. This private message now available to both the sender and intended receiver also allows all subsequent private messages between these two points to require only one public m…

    Date Issued:
    1986-01-28
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    James L. Massey
    Patent Number:
    US 3429334
    Description:

    Device for correcting or detecting errors in transmission of signal information, having an information signal memory, an adder for forming redundancy signals from connections between the adder and the memory in accordance with a convolutional code, the device constructed to enable backward or forward decoding of the message.

    Date Issued:
    1969-04-15
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    James L. Massey
    Patent Number:
    US 3303333
    Description:

    This invention relates to methods of and aparatus for processing signal information and, more particularly, to the correcting and/or detecting of signal errors or other changes, as produced in transmission.

    Date Issued:
    1967-02-07
    Record Visibility:
    Public
    Resource Type
    Patent