Intersymbol interference channel coding scheme

  • US 5,488,633 A
  • Filed: 06/14/1993
  • Issued: 01/30/1996
  • Est. Priority Date: 06/14/1993
  • Status: Expired due to Term
First Claim
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1. A method for transmitting data over an intersymbol interference channel using a predetermined signal-space code, the method comprising the steps of:

  • receiving a sequence of input signal points (408) selected from a predetermined constellation of signal points; and

    adding a dither signal to each of the input signal points, the dither signal (406) applied to a present signal point being selected as a function of previous signal points in the sequence and the current state of a finite-state machine (400) used to generate the signal-space code.

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