Patents by Inventor Thomas B. Henderson

Thomas B. Henderson 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).

  • Optical arithmetic logic using the modified signed-digit redundant number representation
    Patent number: 4863247
    Abstract: Optical architectures are presented for performing fully parallel, carry-free computation with a trinary, modified signed-digit number representation to allow addition, subtraction and multiplication. Two different optical schemes involving position and polarization encoding enable the fabrication of modular trinary logic systems that accommodate trinary numbers of different magnitudes. The optical systems made up of redundant three-dimensional modules provide a designer with latitude to simultaneously carry out addition, subtraction or multiplication optically and with reduced complexity.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: September 5, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark E. Lasher, Richard P. Bocker, Barry L. Drake, Thomas B. Henderson
  • Optical arithmetic logic using the modified signed-digit redundant number representation
    Patent number: 4838646
    Abstract: Optical architectures are presented for performing fully parallel, carry-free computation with a trinary, modified signal-digit number representation to allow addition, subtraction and multiplication. Two different optical schemes involving position and polarization encoding enable the fabrication of modular trinary logic systems that accommodate trinary numbers of different magnitudes. The optical systems made up of redundant three-dimensional modules provide a designer with latitude to simultaneously carry out addition, subtraction or multiplication optically and with reduced complexity.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: June 13, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark E. Lasher, Richard P. Bocker, Barry L. Drake, Thomas B. Henderson