Patents Examined by Hal V. Wachsman
  • Digital filter circuit and signal processing method for the same
    Patent number: 5687101
    Abstract: In a digital IIR filter having a predetermined transfer function, a transfer function of an all-pass filter having the same amplitude as a first pole coefficient of the transfer function and the opposite sign is set. By synthesizing the transfer function and the transfer function of the set all-pass filter, a new transfer function, in which the first pole is eliminated, is calculated such that an input signal is processed by the new transfer function.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 11, 1997
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyo-seung Lee