Multi-carrier receiver with improved radio frequency...

Details Multi-carrier receiver with improved radio frequency... Multi-carrier receiver with improved radio frequency...

2005-07-12

2005-07-12

Urban, Edward F. (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S114200, C455S168100, C455S269000, C455S271000, C375S346000

Reexamination Certificate

active

06917795

ABSTRACT:
A multi-carrier receiver selects antennas (A31, A32), i.e. carriers whereto a small amount of power and data is allocated, for estimation of characteristics of a narrowband disturber (RFI-Signal-3) in the Radio Frequency Interference band (RFI-Band), a predetermined band for e.g. radio amateur transmission. These antennas (A31, A32) can be selected amongst all carriers located inside the Radio Frequency Interference band (RFI-Band) and at least two carriers (C1, C2) located outside the Radio Frequency Interference band (RFI-Band).

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patent: WO 97/40609 (1997-10-01), None
patent: WO 99/26365 (1999-05-01), None
Bingham J A C: “RFI Suppression in Multicarrier Transmission Systems” Phoenix, May 4-7, 1997, New York, IEEE, US, vol. CONF. 47, Nov. 18, 1996, pp. 1026-1030, XP000741584.
Clercq De L et al.: “Mitigation of Radio Interference in XDSL Transmission” IEEE Communications Magazine, IEEE Service Center. Piscataway, N.J., US, vol. 38, No. 3, Mar. 2000, pp. 168-173, XP000948537.
Spruyt P et al.: “Solving the issue of radio interference when deploying digital subscriber lines”, NOC '97, Broadband Access Networks, Jun. 17-19, 1997, pp. 98-105, XP002940575.

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