Patent · US Expired

Data transceiver with filtering and precoding

US6879639B1 · kind B1 · utility

10Cited by
11References
59Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 11, 2000
Grant dateApr 12, 2005
Priority date
Expiry dateMar 13, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L25/497
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A method for conveying digital data from a transmitter to a receiver includes specifying a spectral filtering profile to be applied in conveying the data. A sequence of input symbols is generated at the transmitter, corresponding to the data to be conveyed. The input symbols are precoded at the transmitter using Tomlinson-Harashima preceding responsive to the specified profile, so as to generate a corresponding sequence of precoded symbols. The precoded symbols are filtered in accordance with the specified profile. The precoded and filtered symbols are decoded at the receiver so as to recover the data therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.