Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2004-10-01
2009-06-23
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
Reexamination Certificate
active
07551697
ABSTRACT:
A method and system of demodulating a received transmission is disclosed. The method comprises disassembling a symbol sequence into a before sequence, a current symbol, and an after sequence. The method also comprises calculating correlations for all possible before sequences and determining the largest correlations for the before sequences, and placing into a first group. Further, the method comprises calculating correlations for all possible after sequences and determining the largest correlations for the after sequences, and placing into a second group. Further still, the method comprises piecing together the sequences of the first group, the second group, and the current symbol, to form a third group. Yet further still, the method comprises calculating the correlations for the third group and determining the largest correlation of the third group.
REFERENCES:
patent: 6298463 (2001-10-01), Bingeman et al.
patent: 6304991 (2001-10-01), Rowitch et al.
patent: 6351832 (2002-02-01), Wei
patent: 6427214 (2002-07-01), Li et al.
patent: 6484283 (2002-11-01), Stephen et al.
patent: 6594792 (2003-07-01), Hladik et al.
patent: 6637000 (2003-10-01), Rowitch et al.
patent: 6728927 (2004-04-01), Crozier
patent: 6999533 (2006-02-01), Murthy et al.
patent: 7065157 (2006-06-01), O'Shea
Robert E. Van Dyck (Noncoherent Continuous Phase Frequency-Shift Keying with Trellis-Coded Modulation, pp. 1508-1512, IEEE 1997.
Ivanovs et al., “Continuous Phase Modulation (CPM) advantage compare with OQPSK (Offset Quadrant Phase Shift Key)”, available at www.pdffactory.com, undated, (pp. 27-30).
Lampe et al., “Noncoherent Coded Continuous Phase Modulation”, undated, (5 pgs).
Lampe et al., “Noncoherent Continuous-Phase Modulation for DS-CDMA”, undated, (5 pgs).
Narayanan et al., “Performance of Trellis-Coded CPM with Iterative Demodulation and Decoding”,IEEE Transactions on Communications, vol. 49, No. 4, Apr. 2001, (pp. 676-687).
Sadjadpour et al., “Interleaver design for short block length Turbo codes”, undated, (pp. 1-4).
Simon et al., “Maximum-Likelihood Block Detection of Noncoherent Continuous Phase Modulation”,IEEE Transactions on Communications, vol. 41, No. 1, Jan. 1993, (pp. 90-98).
Svensson et al., “Constrained Envelope Continuous Phase Modulation”, undated, (5 pgs.).
Tapp et al., “Turbo-Detected Coded Continuous-Phase Modulation for Military UHF Satellite Communications”,IEEE, 2002, (pp. 148-151).
Tapp et al., “Turbo Detection of Coded Continuous-Phase Modulation”, IEEE, 1999, (pp. 534-537).
De Veciana et al., “Neural Net-Based Continuous Phase Modulation Receivers”,IEEE Transactions on Communications, vol. 40, No. 8, Aug. 1992, (pp. 1396-1408).
U.S. Patent Application titled “Diversity Code Combining Scheme for Turbo Coded Systems”, filed Oct. 1, 2004, (12 pgs., 3 pgs. of drawings, (15 total pgs.)).
U.S. Patent Application titled “Burst Transmission Using a Spanning Interleaver for Serially Concatenated Continuous Phase Modulation Systems”, filed Oct. 1, 2004, (12 pgs., 2 pgs. of drawings, (14 total pgs.)).
Bocure Tesfaldet
Rockwell Collins, Inc.
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