Partial Response Class I

• E.R. Kretzmer, ``Generalization of a Technique for Binary Data Communication,'' IEEE Trans. Commun., vol.COM-14, no.1, pp.67-68, Feb. 1966. [link]

  パーシャルレスポンス方式を５つのクラスに分類

  1. Class I = PR1 = PR(1,1) : 1+D
  2. Class II = PR2 = PR(1,2,1) : 1+2D+D² = (1+D)²
  3. Class III = PR3 = PR(2,1,-1) : 2+D-D²
  4. Class IV = PR4 = PR(1,0,-1) : 1-D² = (1-D)(1+D)
  5. Class V = PR5 = PR(-1,0,2,0,-1) : -1+2D²-D⁴

PR(1,1) or PR1

• A. Lender, ``The duobinary technique for high-speed data transmission,'' IEEE Trans. Commun. Electron., vol.82, pp.214-218, May 1963.

  パーシャルレスポンス方式の提案, デュオバイナリ = 後に PR1, PR(1,1)

  July 2003, In Memory of Adam Lender[link] by Stephen B. Weinstein

  This Week's Citation Classic Nov. 1981 : A. Lender, ``Correlative level coding for binary-data transmission,'' IEEE Spectrum 3:104-15, 1966. [www.garfield.library.upenn.edu/classics1981/A1981MN34900001.pdf]

• W.E. Ryan, and B.M. Zafer, ``A Study of Class I Partial Response Signaling for Magnetic Recording,'' IEEE Trans. Magn., vol.33, no.6, pp.4543-4550, Nov. 1997. [link] [doi]