Selectively filtering a signal

Pulse or digital communications – Equalizers – Automatic

Reexamination Certificate

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C329S315000

Reexamination Certificate

active

07418033

ABSTRACT:
Demodulation apparatus includes a transversal filter characterized by coefficients adjusted by a coefficient determiner responsive to a constant modulus error signal and variable mode error signal related to the output of a spectral mean frequency detector having its input coupled to the output of the transversal filter.

REFERENCES:
patent: 4309770 (1982-01-01), Godard
patent: 5267266 (1993-11-01), Chen
patent: 5506871 (1996-04-01), Hwang et al.
patent: 5553014 (1996-09-01), De Leon, II et al.
patent: 5697084 (1997-12-01), Tingley
patent: 5740206 (1998-04-01), Lomp et al.
patent: 5809074 (1998-09-01), Werner et al.
patent: 5907303 (1999-05-01), Yukitomo et al.
patent: 5909466 (1999-06-01), Labat et al.
patent: 5940440 (1999-08-01), Werner et al.
patent: 6292135 (2001-09-01), Takatori et al.
patent: 6782036 (2004-08-01), Dowling et al.
patent: 2003/0193366 (2003-10-01), Barksdale
patent: 2003/0219085 (2003-11-01), Endres et al.
patent: 2006/0152276 (2006-07-01), Barksdale
patent: 0 854 589 (1998-07-01), None
patent: 1641203 (2006-03-01), None
patent: 1641204 (2006-03-01), None
patent: 1355463 (2006-08-01), None
European Patent Office, Application No. 03100786.7, Examination Report dated Aug. 25, 2005.
European Patent Office, Application No. 03100786.7, Response to Examination Report dated Dec. 14, 2005.
Laster, J.D. et al. “Interference rejection in digital wireless communications,” IEEE Signal Processing Magazine. pp. 37-62. May 1, 1997.
Mak, S.K. et al. “Detection of trellis-coded modulation on time-dispersive channels,” Global Telecommunications Conference, 1996. Communications: The Key to Global Prosperity London, UK Nov. 18-22, 1996, New York, NY, USA, IEEE, US, vol. 3, Nov. 18, 1996. pp. 1825-1829.
Aboulnasr, T. et al. “Selective coefficient 1, 2 update of gradient-based adaptive algorithms,” Acoustics, Speech and Signal Processing, 1997. 1997 IEEE International Conference on Munich, Germany Apr. 21-24, 1997, Los Alamitos, CA USA, IEEE Computer Society US, vol. 3, Apr. 21, 1997. pp. 1929-1932.
Douglas, S.C.. “Simplified stochastic gradient adaptive filters using partial updating,” Digital Signal Processing Workshop, 1994, 1994 Sixth IEEE Yosemite National Park, CA, USA Oct. 2-5, 1994, New York, NY, USA IEEE, Oct. 2, 1994. pp. 265-268.
S.E. Anderson, et al., “Development of a Multi-Axis Peripheral Stent Durability/Fatigue Test Instrument”, Proceedings of NanoBio 2006, Frontiers in Biomedical Devices Conference, Jun. 2006.
J.R. Treichler and B.G. Agee, “A New Approach to Multipath Correction of Constant Modulus signals.” IEEE Trans. On ASSP, Bol 31, No. 2 pp. 459-472, Apr. 1983.
Richard P. Gooch and Brian Daellenbach, “Prevention of Interference Capture in a Blind (CMA-Based) Adaptive Receiver Filter.” Conference Record of the 23rdAsilomar Conference on Signals, Systems and Computers, Maple Press, pp. 898-902, Nov. 1989.
Y.S. Choi, H. Hwang and D.I. Song, “Adaptive Blind Equalization Coupled with Carrier Recovery for HDTV Modem,” IEEE Transactions on Consumer Electronics, vol. 39, No. 3, pp. 386-391, Aug. 1993.
Douglas, S. C., et al. “Quasi-Newton filtered-error and filtered-regressor algorithms for adaptive equalization and deconvolution.” Signal Processing Advances in Wireless Communications, First IEEE Signal Processing Workshop on Paris, France Apr. 16-18, New York, NY USA, IEEE Apr. 16 (1997) 109-112.
Schritzinger, T, et al. “A comparison of three algorithms for blind equalization based on the constant modulus error criterion.” Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on Detroit, MI, USA May 9-12, 1995, New York, NY, USA, IEEE, US, May 9, (1995) 1049-4052.
J.R. Treichler and B.G. Agee, “A New Approach to Multipath Correction of Constant Modulus Signals,” IEEE Trans. On ASSP, vol. 31, No. 2, pp. 459-472, Apr. 1983.
Richard P. Gooch and Brian Daellenbach, “Prevention of Interference Capture in a Blind (CMA-Based) Adaptive Receive Filter,” Conference Record of the 23rd Asilomar Conference on Signals, Systems and Computers, Maple Press, vol. 31, No.2, pp. 898-902, Nov. 1989.
Search Report dated May 04, 2006 from counterpart European Application No. 05112252.1.
Search Report dated Jun. 04, 2006 from counterpart European Application No. 05112254.7.

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