Equalizing circuit with notch compensation for a direct...

Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination

Reexamination Certificate

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Details

C455S296000, C375S233000, C375S346000

Reexamination Certificate

active

07058381

ABSTRACT:
An equalizing device with notch compensation for a direct conversion receiver is disclosed. The baseband signal of a direct conversion receiver comprises a notch in the frequency response after the required DC compensation is performed. A bandpass generates a notch compensation signal on from a decision signal and a interference compensation signal of a decision feedback loop. Therefore, the reliability of the decision signal is enhanced and allows an improved data rate in WLAN applications.

REFERENCES:
patent: 5661753 (1997-08-01), Iemura
patent: 6625235 (2003-09-01), Coker et al.
patent: 6751255 (2004-06-01), Reuven et al.
patent: 2003/0007554 (2003-01-01), Birru
patent: 2004/0193669 (2004-09-01), Shirani
patent: 0851637 (1998-07-01), None
patent: 1220441 (2002-07-01), None

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