Patents by Inventor Alain Dauby

Alain Dauby 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).

  • Modular signal processor having a hierarchical structure
    Patent number: 4096566
    Abstract: A modular digital signal processor based on a master-slave architecture has the capability of expanding its processing power by aggregating additional modules in a tree type structure. In such a processor the control functions are subdivided into groups, each for performance in a distinct control unit. One or more of the control units can perform a master function with respect to one or several slaved control units and can itself be a slave to a higher level control unit. The arithmetic data functions of the processor are performed in pipe line multiplier-accumulator units (PMAU), each of which is controlled by, instructions from an associated control unit.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: June 20, 1978
    Assignee: International Business Machines Corporation
    Inventors: Jean-Claude Borie, Alain Couder, Alain Dauby, Michel Demange, Gerald Lebizay, Michel Lechaczynski
  • High-speed digital multiply-by-device
    Patent number: 4041296
    Abstract: High speed digital multiply-by-three device comprising a sum generation unit associated with a carry look-ahead unit, the latter comprising means for generating the carry bit C.sub.k.sub.+1 to be fed to the (k+1).sup.th stage of said sum generation unit by performing the logic functionC.sub.k.sub.+1 =X.sub.k.sup.. X.sub.k.sub.-1 +(X.sub.k.sub.-1.sup.. X.sub.K.sub.-2 + . . . + X.sub.k.sub.-1.sup.. X.sub.k.sub.-3.sup.. X.sub.k.sub.-5 . . . X.sub.1) + (X.sub.k.sup.. X.sub.k.sub.-2.sup.. X.sub.k.sub.-3 + . . . + X.sub.k.sup.. X.sub.k.sub.-2.sup.. X.sub.k.sub.-4 . . . X.sub.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: August 9, 1977
    Assignee: International Business Machines Incorp.
    Inventors: Alain Dauby, Vladimir Riso, Daniel Roger-Rodes