Patents Examined by Mac Hoff
  • Digital signal inversion employing cross-over switch
    Patent number: 5162796
    Abstract: A multi-stage adder has a plurality of parallel inputs some fed to one stage of the adder and other inputs fed to a next stage of the adder. To effect selective inversion of a pair of inputs one of the pair is connected to one stage and the other of the pair is connected to the next stage. A cross-over switch is provided on both inputs so that their connection to the two successive stages can be interchanged.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: November 10, 1992
    Assignee: INMOS Limited
    Inventors: Martin J. P. Bolton, Kenneth N. Burgin