Patents Assigned to System Instruments Co., Ltd.
  • Digital filter
    Patent number: 4852034
    Abstract: A digital filter includes at least one cascade-connected unit digital filter. The unit digital filter is constituted by a comb filter and an integrator cascade-connected thereto.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: July 25, 1989
    Assignee: System Instruments Co., Ltd.
    Inventor: Morihiko Takayama