Mitigating radio frequency interference in multi-carrier transmi

Details Mitigating radio frequency interference in multi-carrier transmi Mitigating radio frequency interference in multi-carrier transmi

1997-04-04

2000-03-07

Ghebretinsae, Temesghen

Pulse or digital communications

Transmitters

Antinoise or distortion

375346, 455296, 370525, H04L 2503, H04L 2549

Patent

active

060350008

ABSTRACT:
Methods and mechanisms for reducing the impact of radio frequency interference in multi-carrier data transmission systems are disclosed. In one aspect of the invention, dummy tones are used to suppress emissions within restricted frequency bands. In another aspect of the invention, signals received on designated quiet tones are detected and used to facilitate canceling of RF interference on adjacent active tones.

REFERENCES:
patent: 4269482 (1981-05-01), Mori
patent: 5887032 (1999-03-01), Cioffi
Jacobsen, Cioffi: "High-performance multimedia transmission on the cable television network" Supercomm/ICC, May 1-5, 1994, New York, Us, pp. 1048-1052.
Wu, Caron: "Digital television terrestrial broadcasting" IEEE Communications Magazine, vol. 32, No. 5, May 1994, pp. 46-52.

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