Peak limiter and multi-carrier amplification apparatus

Details Peak limiter and multi-carrier amplification apparatus Peak limiter and multi-carrier amplification apparatus

2005-08-16

2005-08-16

Vo, Nguyen T. (Department: 2685)

Telecommunications

Transmitter

Plural separate transmitters or channels

C455S114300, C375S296000

Reexamination Certificate

active

06931239

ABSTRACT:
A peak limiter for use in a system for amplifying a multi-carrier signal receives a baseband signal of each carrier of the multi-carrier signal. The multi-carrier signal is computationally estimated to have carriers combined in an RF band, and obtains power information of the multi-carrier signal to limit an amplitude of the baseband signal based on the power information of the estimated multi-carrier signal to thereby provide peak-limited baseband signals. Thus, the distortion generated by performing the unnecessary peak limitation can be effectively prevented to thereby improve the reliability of the entire system.

REFERENCES:
patent: 5710990 (1998-01-01), Long et al.
patent: 5751705 (1998-05-01), Sato
patent: 6144694 (2000-11-01), Uta et al.
patent: 6154659 (2000-11-01), Jalali et al.
patent: 6236864 (2001-05-01), McGowan et al.
patent: 2003/0179833 (2003-09-01), Porco et al.
patent: 0743768 (1996-11-01), None
patent: 2000244452 (2000-09-01), None

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