Pulse or digital communications – Systems using alternating or pulsating current – Antinoise or distortion
Reexamination Certificate
2001-09-28
2008-10-07
Ghayour, Mohammed (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Antinoise or distortion
C375S272000, C375S229000, C375S230000, C375S231000, C375S232000, C375S233000, C375S234000, C375S235000, C375S236000, C375S279000, C375S364000, C375S295000, C375S329000, C375S296000, C375S308000, C455S101000
Reexamination Certificate
active
07433418
ABSTRACT:
Some embodiments store a training sequence in a communications system. The stored training sequence exhibits certain desirable characteristics when used by a peak to average power constrained modulation format. In one embodiment, a set of original ordered sequences is selected to have at least one desired property. A set of extended sequences is created from the original sequences by beginning with an element of an original sequence and cyclically appending elements of the original sequence in order to obtain a desired extended sequence length. Each extended sequence is modified using a corresponding modifying sequence, such that a training sequence can be generated from any one of the modified extended sequences. Each modifying sequence is selected so that the generated training sequence when modulated by a selected modulation format has the at least one desired property of the corresponding original ordered sequence.
REFERENCES:
patent: 4397029 (1983-08-01), Satorius et al.
patent: 5103427 (1992-04-01), Erdol et al.
patent: 5828658 (1998-10-01), Ottersten et al.
patent: 5909436 (1999-06-01), Engstrom et al.
patent: 6031865 (2000-02-01), Kelton et al.
patent: 6104761 (2000-08-01), McCallister et al.
patent: 6208630 (2001-03-01), Cooley et al.
patent: 6289062 (2001-09-01), Wang et al.
patent: 6445747 (2002-09-01), Jafarkhani et al.
patent: 6671311 (2003-12-01), Raphaeli et al.
patent: 6738443 (2004-05-01), Bohnke et al.
patent: 6842487 (2005-01-01), Larsson
patent: 6907092 (2005-06-01), Yakhnich et al.
patent: 2002/0110109 (2002-08-01), Kawaguchi et al.
patent: 2002/0181509 (2002-12-01), Mody et al.
patent: 2002/0193078 (2002-12-01), MacFarlane Shearer et al.
patent: 2003/0021332 (2003-01-01), Li
patent: 2003/0058926 (2003-03-01), Balakrishnan et al.
patent: 2003/0081705 (2003-05-01), Miller
patent: 2004/0141548 (2004-07-01), Shattil
patent: 1187410 (2002-03-01), None
Tarokh, Vahid, et al., “On the Computation and Reduction of the Peak-to-Average Power Ratio in Multicarrier Communications”, Jan. 2000,IEEE Transactions on Communications, vol. 48, No. 1., (2000),37-44 pps.
Dogan Mithat C.
Trott Mitchell D.
ArrayComm LLC
Blakely , Sokoloff, Taylor & Zafman LLP
Ghayour Mohammed
Malek Leila
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