Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2011-08-23
2011-08-23
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S267000, C375S260000
Reexamination Certificate
active
08005171
ABSTRACT:
A UWB system comprising a plurality of piconets, wherein each piconet uses a different code to generate a preamble for use in communicating with a plurality of remote communication devices. The preamble can be generated from the combination of repeated versions of the code, negative versions of the code, and no code or zero, the codes used have a perfect autocorrelation function and optimal cross-correlation.
REFERENCES:
patent: 6473467 (2002-10-01), Wallace et al.
patent: 7184719 (2007-02-01), Roberts
patent: 7254202 (2007-08-01), Cattaneo et al.
patent: 7447232 (2008-11-01), Stephens et al.
patent: 2003/0058972 (2003-03-01), Iochi
patent: 2004/0142663 (2004-07-01), Roberts
patent: 2004/0156390 (2004-08-01), Prasad et al.
patent: 2004/0240597 (2004-12-01), Cattaneo et al.
patent: 2005/0105505 (2005-05-01), Fishler et al.
Antweiler, M. “Cross-correlation of p-ary GMW sequences,” IEEE Transactions on Information Theory, vol. 40, No. 4, Jul. 1994, pp. 1253-1261.
Gong, Guang et al., “Cryptographic properties of the Welch-Gong transformation sequence generators,” Information Theory, IEEE Transactions on, vol. 48, Issue 11, Nov. 2002, pp. 2837-2846, Digital Object Identifier 10.1109/TIT.2002.804043.
International Search Report—PCT/US06/024244, International Search Authority—US, Jan. 16, 2007.
Written Opinion—PCT/US06/024244, International Search Authority—US, Jan. 16, 2007.
International Preliminary Report on Patentability—PCT/US06/024244, The International Bureau of WIPO—Geneva, Switzerland, Dec. 24, 2007.
X. Chang, Z. Dai, and G. Gong, “Some cryptographic properties of exponential functions,” in Advances in Cryptology Asia CRYPT'94. (Lecture Notes in Computer Science), Berlin, Germany: Springer-Verlag, 1994, vol. 917, pp. 415-418.
Fan Chieh M
Garcia Santiago
Qualcomm Incorporated
Vo Dang M.
LandOfFree
Systems and method for generating a common preamble for use... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and method for generating a common preamble for use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and method for generating a common preamble for use... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2715473