Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2004-09-27
2010-06-15
Ghayour, Mohammad H (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C375S229000, C375S230000, C375S231000, C375S233000, C375S234000, C375S235000, C375S236000, C375S316000
Reexamination Certificate
active
07738546
ABSTRACT:
A method and apparatus for a feed forward equalizer for a communication system are described. An equalizer comprising a tapped filter having multiple filter multipliers and a summing element is described. The equalizer further comprises a correlator having multiple correlator multipliers, with each correlator multiplier having a corresponding integrator, a set of shared delay elements to connect to the filter multipliers and the correlator multipliers; and an error signal generator to connect to the correlator.
REFERENCES:
patent: 3715670 (1973-02-01), Hirsch et al.
patent: 4550415 (1985-10-01), Debus et al.
patent: 4612585 (1986-09-01), Takase et al.
patent: 4721920 (1988-01-01), Poletto et al.
patent: 4811360 (1989-03-01), Potter
patent: 5185582 (1993-02-01), Barbu
patent: 5369668 (1994-11-01), Yamamoto
patent: 5668832 (1997-09-01), Yamamoto
patent: 5734680 (1998-03-01), Moore et al.
patent: 5930296 (1999-07-01), Kot
patent: 6202075 (2001-03-01), Azadet
patent: 6665337 (2003-12-01), Girardeau, Jr. et al.
patent: 6909742 (2005-06-01), Leonosky
patent: 6934387 (2005-08-01), Kim
patent: 7120656 (2006-10-01), Lam et al.
patent: 7130366 (2006-10-01), Phanse et al.
patent: 7272177 (2007-09-01), Lin et al.
patent: 7299022 (2007-11-01), Inoue et al.
patent: 2005/0135468 (2005-06-01), Asuri et al.
patent: 2005/0249274 (2005-11-01), Larosa et al.
patent: 2006/0067396 (2006-03-01), Christensen
patent: 2006/0067542 (2006-03-01), Christensen
patent: 0 675 608 (1995-10-01), None
patent: 0 675 608 (1995-10-01), None
Zeki et al. “BiCMOS Current-Mode Integrators Suitable for Low-Voltage Continuous-Time Filters”, IEEE Jul. 2003.
Dawson et al. “An Undersea Fiber-Optic Regenerator Using an Integral-Substrate Package and Flip-Chip Saw mounting”, IEEE Nov. 1984.
Cho et al., “Performance Evaluation of the Transversal Filter Equalizer Using ZF and LMS Algorithm”, IEEE TENCON, Dec. 2, 1997, pp. 73-76, IEEE, USA.
Chung et al., “Characterization of the Regions of Convergence of CMA Adapted Blind Fractionally Spaced Equalizer”, IEEE, Nov. 1, 1998, pp. 493-497, IEEE, USA.
P. Bert Schniter, “CMA-FSE Error Surface Examples”, Jun. 10, 2004, pp. 1-5, Retrieved from the Internet on Jan. 26, 2006: <web.archive.org/web/20040610114507/http://www.ece.osu.edu/schniter/CMA—FSE—surf/CMA—FSE—surf.html>.
PCT International Search Report, International Application No.: PCT/US2005/033656, Date of Completion: Jan. 27, 2006, Date of Mailing: May 5, 2006, pp. 1-7.
Cho, Woong-Ki et al., “Performance Evaluation of the Transversal Filter Equalizer Using ZF and LMS Algorithm”, 1997 IEEE TENCON—Speech and Image Technologies for Computing and Telecommunications, (Dec. 1997), pp. 73-76.
Chung, Wonzoo et al., “Characterization of the Regions of Convergence of CMA Adapted Blind Fractionally Spaced Equalizer”, Signals, Systems & Computers; Conference Record of the Thirty-Second Asilomar Conference on Pacific Grove, CA, USA, IEEE, Dated: Nov. 1, 1998, vol. 1, pp. 493-497.
Schniter, P. B., “CMA-FSE Error Surface Examples”, Retrieved from the Internet: <web.archive.org/web/20040610114507/http://www.ece.osu.edu/˜schniter/CMA—FSE—surf/CMA—FSE—surf.html>, (Dated: Jun. 10, 2004), pp. 1-5.
Ghayour Mohammad H
Intel Corporation
Kacvinsky LLC
Vlahos Sophia
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