Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2008-02-25
2010-10-19
Wang, Ted M (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S260000, C375S295000, C375S316000
Reexamination Certificate
active
07817708
ABSTRACT:
Orthogonal Code Division Multiplexing (OCDM) transceiver system with Complementary Code Keying (CCK) and method for baseband OCDM-CCK encoding and decoding are provided. The OCDM-CCK method comprises a serial-to-parallel data converter converting a stream of M*n-bit serial data to n-bit parallel data in ‘M’ parallel baseband paths, and encoding each n-bit data segment with a distinct complementary code using CCK modulation for spreading. The CCK encoded baseband signals are all summed and transmitted simultaneously on the same carrier frequency and spread spectral bandwidth. The OCDM-CCK method of encoding and transmission of information, results in enhanced datarates of 33 Mbps, 88 Mbps, 176 Mbps and higher multiples of 5.5 Mbps with backward compatibility for IEEE 802.11b WLAN (Wireless Local Area Network), and wireless communication networks supporting real time Direct Sequence Spread Spectrum (DSSS).
REFERENCES:
patent: 5243341 (1993-09-01), Seroussi et al.
patent: 5636247 (1997-06-01), Kamerman et al.
patent: 5694389 (1997-12-01), Seki et al.
patent: 5771010 (1998-06-01), Masenas
patent: 5841813 (1998-11-01), van Nee
patent: 5841819 (1998-11-01), Hu et al.
patent: 5982807 (1999-11-01), Snell
patent: 6005840 (1999-12-01), Awater et al.
patent: 6301221 (2001-10-01), Paterson
patent: 6314289 (2001-11-01), Eberlein et al.
patent: 6674819 (2004-01-01), Rudolf et al.
patent: 6678310 (2004-01-01), Andren et al.
patent: 6711121 (2004-03-01), Gerakoulis et al.
patent: 6882679 (2005-04-01), Somayazulu et al.
patent: 6882692 (2005-04-01), Somayazulu
patent: 6956910 (2005-10-01), Lu et al.
patent: 7027538 (2006-04-01), Ghosh
patent: 7079567 (2006-07-01), van Nee
patent: 7145969 (2006-12-01), Hu et al.
patent: 7151925 (2006-12-01), Ting et al.
patent: 7187730 (2007-03-01), Hu et al.
patent: 7200164 (2007-04-01), Chen et al.
patent: 7243318 (2007-07-01), Mirza et al.
patent: 7253754 (2007-08-01), Takeuchi et al.
patent: 7318225 (2008-01-01), Sorar
patent: 7593347 (2009-09-01), Maltsev et al.
patent: 7738538 (2010-06-01), Tung
patent: 2002/0009125 (2002-01-01), Shi
patent: 2003/0054788 (2003-03-01), Sugar et al.
patent: 2003/0147478 (2003-08-01), Chang et al.
patent: 2004/0086028 (2004-05-01), Kluge et al.
R. Sivaswamy, “Multiphase Complementary Codes,” IEEE Transactions on Information Theory, vol. IT-24, No. 5, Sep. 1978.
R. Sivaswamy, “Digital and analog sub complementary sequences”, (IEEE. Transactions on Aerospace Electronic Systems,vol. 14, No. 2, Mar. 1978.
Carl Andren, Mark Webster, “CCK Modulation Delivers 11Mbps for High Rate IEEE 802.11 Extension,” Wireless Symposium/Portable by Design Conference Spring 1999.
R. van Nee, “OFDM codes for peak-to-average power reduction and error correction,” Proc. IEEE Global Telecommunication. Conference, vol. 1, pp. 740-744, Nov. 1996.
B. O'Hara and A. Petrick, IEEE 802.11 Handbook: Designer's Companion, IEEE Press, Dec. 1999.
IEEE Std., 802.11b, Part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications: High-speed physical layer extension in the 2.4 GHz band, 1999.
Mario E. Magana et. al., “Improvement of Data Rate Performance of Wireless Local Area Networks through the Use of Orthogonal Code Division Multiplexing (OCDM), Multipath Diversity, and Parallel Concatenated Channel Encoding”, Wireless Personal Communications, Kluwer Academic Publishers. vol. 25, No. 4, Jul. 2003 , pp. 293-305.
Harada, H., “OCDM: a new multicode CDM radio transmission system based on cyclicmodified M-sequences-performance evaluation using prototype”, Vehicular Technology Conference, 1999 IEEE 49th vol. 3, Issue , Jul. 1999 pp. 1819-1825 vol. 3.
Abstract of B. Sklar, “A Primer on Turbo Code Concepts”, IEEE Commun. Mag., vol. 36, No. 12, pp. 94-102, 1997.
Abstract of B.P. Crow et al., “IEEE 802.11 Wireless Local Area Networks”, IEEE Commun. Mag., vol. 35, No. 9, pp. 116-126, 1997.
Abstract of R. van Nee, G. Awater, M. Morikura, H. Takanashi, M. Webster and K.W. Halford, “New High-Rate Wireless LAN Standards”, IEEE Communications Magazine, pp. 82-88, 1999.
Abstract of J.G. Proakis, Digital Communications, McGraw-Hill: New York, 2001.
E. Lawrey, “Multiuser OFDM”, Fifth International Symposium on Signal Processing and its Applications, ISSPA '99, Brisbane, Australia, Aug. 22-25, 1999, Organized by the Signal Processing Research Center, QUT, Brisbane, Australia, pp. 761-764.
M. Wahlqvist, et. al, “A Conceptual Study of OFDM-based Multiple Access Schemes”, Technical Report Tdoc 117/96, ETSI STC, SMG2 meeting No. 18, Helsinki, Finland, May 1996.
Bob Pearson, “Complementary Code Keying Made Simple,” Intersil, Application Note Nov. 2001 AN9850.2.
Marcel J. E. Golay, “Complementary Series,” IRE Transactions on Information Theory, pp. 82-87, Apr. 1961.
R. L. Frank, “Polyphase Complementary Codes”, IEEE Transactions on Information Theory, Nov. 1980, vol. IT-26, No. 6, pp. 641-647.
R. Craigen, e. al., “Complex Golay sequences: structure and applications”, Discrete Mathematics, vol. 252, No. 1, May 31, 2002 , pp. 73-89(17).Publisher: Elsevier.
W.H. Holzmann and H. Kharaghani: “A computer search for complex Golay sequences,” Australasian Journal of Combinatorics, No. 10, pp. 251-258, 1994.
IEEE Draft Supplement to Standard for Information Technology—Telecommunications and Information Exchange Between Systems- Specific Requirements- Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Higher Speed Physical Layer (PHY) Extension in the 2.4 GHz Band, 1999, IEEE P802.11b/D4.0, IEEE, USA.
Webster, Mark and Andren, Carl; Harris/Lucent CCK Description: Additional Covercode and Fast Transform Detail; Sep. 1998; doc,: IEEE 802. 11-98/331; Harris Semiconductor, Melbourne, FL.
Harris Semiconductor Note entitled, “PRISM 2.4 GHz Chip Set,” File No. 4063.4 , Oct. 1996.
Intersil Tech Brief entitled, “A Brief Tutorial on Spread Spectrum and Packet Radio”, No. TB337.1, May 1996, by Carl Andren.
Harris Corporation, “Direct Sequence Spread Spectrum Baseband Processor,” File No. 4064.4, Oct. 1996.
Intersil Data Sheet entitled “Direct Sequence Baseband Processor”, File No. 4594.1, Jul. 1999.
Abstract of T. Shono, et. al.,: Performance of IEEE 802.11 Wireless LAN Implemented on Software Defined Radio with Hybrid Programmable Architecture. Proceedings. of IEEE International Conference on Communications, 2003, vol. 3, 2003, p. 2035-2040.
Seiichi Nishijima, Miyoshi Saito and Iwao Sugiyama, “Single-Chip Baseband Signal Processor for Software-Defined Radio”, Fujitsu Sci. Tech. J., 42,2,p. 240-247(Apr. 2006).
S. D. Deshpande et. al., “Software Implementation of IEEE 802.11b Wireless LAN Standard”, Software Defined Radio Technical Conference and Product Exposition, Nov. 15-18, 2004—Phoenix, Arizona.
Intersil Data Sheet entitled “Direct Sequence Spread Spectrum Baseband Processor”, File No. 4776.3. Nov. 2001.
Sivaswamy Ram
Swamy Pradeep Siva
Sivaswamy Associates, LLC.
The Villamar Firm PLLC
Villamar Carlos R.
Wang Ted M
LandOfFree
Orthogonal code division multiplex CCK (OCDM-CCK) method and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orthogonal code division multiplex CCK (OCDM-CCK) method and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orthogonal code division multiplex CCK (OCDM-CCK) method and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4209494