Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2006-08-22
2006-08-22
Bocure, Tesfaldet (Department: 2631)
Pulse or digital communications
Transmitters
Antinoise or distortion
C332S123000
Reexamination Certificate
active
07095798
ABSTRACT:
A system and method for post filtering signal peak reduction adapted for use in a multi-carrier communication system incorporating a source of a multi-carrier communication signal band limited in plural bands corresponding to the plural carriers. A first signal path receives as an input the band limited multi-carrier communication signal. A second parallel signal path includes a peak reduction calculation circuit for calculating a peak reduction correction signal and a plurality of filters providing a plurality of parallel filtering operations on the peak reduction correction signal corresponding to the plural bands to which the communication system is limited. The filtered peak reduction correction signals and delayed input signal are combined to provide peak adjusted output signals without violating the band limits of the communication signal or the modulation scheme of the communication signal.
REFERENCES:
patent: 3898566 (1975-08-01), Switzer et al.
patent: 4878232 (1989-10-01), Fisher
patent: 5163181 (1992-11-01), Koontz
patent: 5228055 (1993-07-01), Uchida et al.
patent: 5249201 (1993-09-01), Posner et al.
patent: 5490172 (1996-02-01), Komara
patent: 5493587 (1996-02-01), Sandri et al.
patent: 5579342 (1996-11-01), Crozier
patent: 5608760 (1997-03-01), Sandri et al.
patent: 5621762 (1997-04-01), Miller et al.
patent: 5636247 (1997-06-01), Kamerman et al.
patent: 5638404 (1997-06-01), Crozier
patent: 5651028 (1997-07-01), Harris et al.
patent: 5727026 (1998-03-01), Beukema
patent: 5751705 (1998-05-01), Sato
patent: 5805640 (1998-09-01), O'Dea et al.
patent: 5822360 (1998-10-01), Lee et al.
patent: 5930678 (1999-07-01), Alley et al.
patent: 5991262 (1999-11-01), Laird et al.
patent: 6009090 (1999-12-01), Oishi et al.
patent: 6032029 (2000-02-01), Futagi et al.
patent: 6041081 (2000-03-01), O et al.
patent: 6125103 (2000-09-01), Bauml et al.
patent: 6128351 (2000-10-01), Jones et al.
patent: 6130918 (2000-10-01), Humphrey et al.
patent: 6175551 (2001-01-01), Awater et al.
patent: 6222873 (2001-04-01), Bang et al.
patent: 6229995 (2001-05-01), Lee
patent: 6236864 (2001-05-01), McGowan et al.
patent: 6240141 (2001-05-01), Long
patent: 6246725 (2001-06-01), Vanzieleghem et al.
patent: 6294956 (2001-09-01), Ghanadan
patent: 6356606 (2002-03-01), Hahm
patent: 6449302 (2002-09-01), Hunton
patent: 6504862 (2003-01-01), Yang
patent: 6687511 (2004-02-01), McGowan et al.
patent: 6701163 (2004-03-01), Hiramatsu
patent: 6931053 (2005-08-01), McGowan
patent: 6931079 (2005-08-01), Peeters
patent: 6931239 (2005-08-01), Hongo et al.
patent: 6931240 (2005-08-01), Hunton
patent: 2002/0006169 (2002-01-01), Hunton
patent: 2002/0191709 (2002-12-01), Hunton
patent: 2003/0067995 (2003-04-01), Matsuoka et al.
Muto et al. “A Peak Power Reduction Scheme with Adaptive Transmit Power Control for Multi-Carrier Transmission,” IEEE 1999, pp. 2144-2148.
Wireless Systems Design, Sep. 200, “Baseband Clipping Can Lead to Improved WCDMA Signal Quality”, Paul Stadnik, pp. 40-44.
Bocure Tesfaldet
Myers Dawes Andras & Sherman LLP.
Powerwave Technologies Inc.
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