Patents Represented by Law Firm Fitizpatrick, Cella, Harper & Scinto
  • Data detection apparatus
    Patent number: 5581568
    Abstract: A data detection apparatus has an A/D (analog to digital) converter which samples and quantizes the output of a low-frequency-emphasizing-type equalization circuit and a digital filter which processes the output of the A/D converter. A Viterbi decoder performs Viterbi decoding of the digital output filter and determines a branchmetric on the basis of an equalization error.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: December 3, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mikio Togami