Patents Examined by Bruce Harris
  • Phase shifting of waveforms
    Patent number: 4367542
    Abstract: A signal having the form cos (.OMEGA.t+.phi.) where .OMEGA. is the frequency of the signal and .phi. is a phase angle which may be zero is phase shifted to improve the results of the summation of such a signal with other signals having the same form but different phase angles.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: January 4, 1983
    Assignee: Phillips Petroleum Company
    Inventor: Richard E. DuBroff