Jitter sensitive maximum- a-posteriori sequence detection

Details Jitter sensitive maximum- a-posteriori sequence detection Jitter sensitive maximum- a-posteriori sequence detection

2005-04-13

2008-09-09

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Synchronizers

Self-synchronizing signal

C375S265000, C375S371000, C375S342000, C714S704000, C386S349000

Reexamination Certificate

active

07424077

ABSTRACT:
A channel detector has an anchor points inserter, a desired signal calculator, a distance calculator and a data detector. The anchor points inserter is adapted to choose values of expected transition locations for transition shifts within a received signal and to insert anchor points corresponding to the chosen values within a bit detection interval. The desired signal calculator is coupled to the anchor points inserter and is adapted to estimate desired signals corresponding to transition location information from the anchor points inserter. The distance calculator is coupled to the desired signal calculator and is adapted to generate a distance calculator output based on distances between the received signal and each of the desired signals. The data detector is coupled to the distance calculator and is adapted to identify a bit sequence corresponding to a desired signal having a minimum distance from the received signal. The data detector is adapted to generate an output based on the distance calculator output.

REFERENCES:
patent: 4197502 (1980-04-01), Sumner et al.
patent: 4745625 (1988-05-01), Eyuboglu
patent: 5220568 (1993-06-01), Howe et al.
patent: 5689532 (1997-11-01), Fitzpatrick
patent: 5768285 (1998-06-01), Griep et al.
patent: 5862192 (1999-01-01), Huszar et al.
patent: 6201839 (2001-03-01), Kavcic et al.
patent: 6438180 (2002-08-01), Kavcic et al.
patent: 6532337 (2003-03-01), Yoshinaka
patent: 6985552 (2006-01-01), King
patent: 7154965 (2006-12-01), Zeng et al.
patent: 7319726 (2008-01-01), Wu et al.
patent: 2004/0264618 (2004-12-01), Zogakis
patent: 2005/0069031 (2005-03-01), Sunter et al.
patent: 2006/0285852 (2006-12-01), Xi et al.
Moision, B. & Siegel, P.H.; “Distance Enhancing Constraints for Noise Predictive Maximum Likelihood Detectors,” Global Telecommunications Conference 1998, Globecom '98. vol. 5, pp. 2730-2735.
Oenning, T. & Moon, J.; “Low Density Parity Check Coding for Magnetic Recording Channels with Media Noise,”IEEE International Conference on Communications, 2001, vol. 7, pp. 2189-2193.
Eleftheriou, E. & Hirt, W.; “Improving Performance of PRML/EPRML through Noise Prediction,” IEEE Transactions on Magnetics, vol. 32, No. 5, Sep. 1996, pp. 3968-3970.
Moon, J. & Zeng, W. “Equalization for Maximum Likelihood Detectors,” IEEE Transactions on Magnetics, vol. 31, No. 2, Mar. 1995, pp. 1083-1088.
Moon, J.; “Pattern-Dependent Noise Prediction in Signal-Dependent Noise,” IEEE Journal on Selected Areas in Communications, vol. 19, No. 4, Apr. 2001, pp. 730-743.
M. Jin et al.; “A Novel Fast Approach for Estimating Error Propagation in Decision Feedback Detectors,” IEEE Journal on Selected Areas in Communications, vol. 19, No. 4, Apr. 2001, pp. 668-676.
Kim, Y. & Moon, J.; “Noise-Predictive Maximum-Likelihood Method Combined with Infinite Impulse Response Equalization,” IEEE Transactions on Magnetics, vol. 35, No. 6, Nov. 1999, pp. 4538-4543.
Kavcic, A. & Moura, J. “The Viterbi Algorithm and Markov Noise Memory,” IEEE Transactions on Information Theory, vol. 46, No. 1, Jan. 2000, pp. 291-301.
J. Coker et al.; “Noise-Predictive Maximum Likelihood (NPML) Detection,” IEEE Transactions on Magnetics, vol. 34, No. 1, Jan. 1998, pp. 110-117.
R. Cideciyan et al.; “Noise Predictive Maximum Likelihood Detection Combined with Parity-Based Post-Processing,” IEEE Transactions on Magnetics, vol. 37, No. 2, Mar. 2001, pp. 714-720.
Liu, J. & Vijaya Kumar, B.V.K.; “Symbol Timing Recovery for Low-SNR Partial Response Recording Channels,” Global Telecommunications Conference, Nov. 2002, Globecom, 2002, vol. 2, pp. 1129-1136.

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