Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2008-04-08
2008-04-08
Vo, Don N. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S260000
Reexamination Certificate
active
07356072
ABSTRACT:
A communication system comprises direct sequence spread-spectrum demodulator that receives first and second signals and that correlates a spreading code with a preamble of each data packet to produce a spreading codeword including a predetermined number of chips. A signal quality measurement device is responsive to the direct sequence spread-spectrum demodulator, measures signal quality values corresponding to each of the first and second signals for each data packet after correlation with the spreading code and that selects one of the first and second signals on the basis of the measured signal quality values.
REFERENCES:
patent: 4237903 (1980-12-01), Hofmann
patent: 5077753 (1991-12-01), Grau, Jr. et al.
patent: 5838742 (1998-11-01), Abu-Dayya
patent: 5950124 (1999-09-01), Trompower et al.
patent: 6061574 (2000-05-01), Goldberg
patent: 6115406 (2000-09-01), Mesecher
patent: 6215812 (2001-04-01), Young et al.
patent: 6215814 (2001-04-01), Yitalo et al.
patent: 6229842 (2001-05-01), Schulist et al.
patent: 6240149 (2001-05-01), Yukitomo et al.
patent: 6256340 (2001-07-01), Schilling
patent: 6259721 (2001-07-01), Uesugi et al.
patent: 6278726 (2001-08-01), Mesecher et al.
patent: 6609012 (2003-08-01), Malmgren et al.
patent: 6683908 (2004-01-01), Cleveland
patent: 6728306 (2004-04-01), Shi
patent: 6754195 (2004-06-01), Webster et al.
patent: 6771772 (2004-08-01), Tannikulu
patent: 7099380 (2006-08-01), Feng et al.
patent: 2002/0090024 (2002-07-01), Tan
patent: 2002/0131478 (2002-09-01), Somayazulu et al.
patent: 2003/0086507 (2003-05-01), Kim et al.
patent: 2005/0206566 (2005-09-01), Stilp et al.
patent: EP 0642 243 (1993-04-01), None
Fennick, J.; “The PAR Meter: Applications in Telecommunication Systems”; IEEE Transactions on Communications Technology; vol. 18, No. 1; Feb. 1970; pp. 68-73.
Liu et al; “Advanced low-complexity HIPERLAN receiver using combined antenna diversity and simple equalizer”; IEEE 47th Vehicular Technology Conference, vol. 3; May 4-7, 1997; pp. 2037-2041.
Sarinnapakorn, K.; “IEEE 802.11b High Rate Wireless Local Area Networks”; http://alpha.fdu.edu/˜kanoksri/IEEE80211b.html; Mar. 15, 2001; pp. 1-8.
Ramasami; “Orthogonal Frequency Division Multiplexing”; http://www.ittc.ku.edu/˜rvc/documents/862/862—ofdmreport.pdf; pp. 1-27.
Hettich, A; “IEEE 802.11 or ETSI BRAN HIPERLAN/2: Who will win the race for a high speed wireless LAN standard?”; pp. 1-6.
Srivastava et al; “A Systematic Approach to Peak-to-Average Power Ratio in OFDM”; http://fleece.ucsd.edu/˜curts/papers/SPIE01.pdf; Oct. 22, 2001; pp. 1-11.
Tarokh et al; On the Computation and Reduction of the Peak-to-Average Power Ratio in Multicarrier Communications; IEEE Transactions on Communications: vol. 48, No. 1; Jan. 2000; pp. 37-44.
Jones et al; Block coding for reduction of Peak to mean envelope power ratio of multicarrier transmission schemes; Electronics Letters; vol. 30, No. 25; Dec. 1994; pp. 2098-2099.
ANSI/IEEE Std 802.11, 1999 Edition; Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications; LAN/MAN Standards Committee of the IEEE Computer Society; 528 pages.
IEEE Std 802.11b-1999 (Supplement to IEEE Std 802.11-1999 Edition); Supplement to IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Higher-Speed Physical Layer Extension in the 2.4 GHz Band; LAN/MAN Standards Committee of the IEEE Computer Society; Sep. 16, 1999 IEEE-SA Standards Board; 96 pages.
Feng Weishi
Hsu Yungping
Hu Guorong
Tang Hsiao
Marvell International Ltd.
Vo Don N.
LandOfFree
Antenna diversity technique for wireless communication does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antenna diversity technique for wireless communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna diversity technique for wireless communication will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2743131