Evaluation Of Root (e.g., Square Root) Patents (Class 708/807)
  • Calculating circuit and method for computing an -th root and a reciprocal of a number
    Patent number: 7668898
    Abstract: A calculating circuit and a method for generating an output signal representing an output number approximating an N-th root and/or a reciprocal of an input number represented by an input signal are described. The calculating circuit includes a subtractor circuit, an integrator circuit, and a multiplier circuit. The subtractor circuit responsive to a first signal and a feedback signal and configured for generating an error signal representing a difference between the first signal and the feedback signal. The integrator circuit responsive to the error signal and configured for computing the output signal. The multiplier circuit responsive to the output signal and configured for generating a feedback signal.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: February 23, 2010
    Assignee: Zoran Corporation
    Inventors: Yonatan Manor, Noam Galperin
  • Calculating circuit and method for computing an -th root and a reciprocal of a number
    Patent number: 6999986
    Abstract: A calculating circuit and a method for generating an output signal representing an output number approximating an N-th root and/or a reciprocal of an input number represented by an input signal are described. The calculating circuit includes a subtractor circuit, an integrator circuit, and a multiplier circuit. The subtractor circuit responsive to a first signal and a feedback signal and configured for generating an error signal representing a difference between the first signal and the feedback signal. The integrator circuit responsive to the error signal and configured for computing the output signal. The multiplier circuit responsive to the output signal and configured for generating a feedback signal.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: February 14, 2006
    Assignee: Oren Semiconductor Ltd.
    Inventors: Yonatan Manor, Noam Galperin