Multiplex communications – Communication techniques for information carried in plural... – Transmission bandwidth conservation
Reexamination Certificate
2004-01-29
2009-08-18
Duong, Frank (Department: 2416)
Multiplex communications
Communication techniques for information carried in plural...
Transmission bandwidth conservation
C370S208000, C370S330000, C370S478000, C370S205000
Reexamination Certificate
active
07577165
ABSTRACT:
A method and system for increasing the effective communications channel bandwidth beyond that of the constrained physical bandwidth of a given channel by orthogonal signal spectrum overlay (OSSO) comprising: decomposing the time-bandwidth product (TBP) of a given symbol in a data stream transmitted through a given bandwidth, expanding the TBP in terms of overlaid orthogonal signals such as Weber-Hermite (WH) functions that constitute the eigensignals of the symbol. The complete data stream is multiplexed to produce a plurality of data channels, each of which is encoded on an orthogonal signal by quadrature amplitude modulation. The overlay of these signals constitutes the OSSO symbol. The OSSO symbols are transmitted in quadrature format (I and Q) and are the result of the addition of orthogonal signals, each of which constitutes a separate overlaid communication channel, occupying the same physical bandwidth.
REFERENCES:
patent: 4222115 (1980-09-01), Cooper et al.
patent: 5486833 (1996-01-01), Barrett
patent: 5546477 (1996-08-01), Knowles et al.
patent: 5640423 (1997-06-01), Archer
patent: 5790516 (1998-08-01), Gudmundson et al.
patent: 5828660 (1998-10-01), Baum et al.
patent: 5910905 (1999-06-01), Qian et al.
patent: 5940141 (1999-08-01), Faroudja et al.
patent: 6278686 (2001-08-01), Alard
patent: 6470055 (2002-10-01), Feher
patent: 6608874 (2003-08-01), Beidas et al.
patent: 6654431 (2003-11-01), Barton et al.
patent: 6760388 (2004-07-01), Ketchum et al.
patent: 6778514 (2004-08-01), Boccuzzi et al.
patent: 7092436 (2006-08-01), Ma et al.
patent: 7092440 (2006-08-01), Dress et al.
patent: 7206359 (2007-04-01), Kjeldsen et al.
patent: 2002/0080889 (2002-06-01), Dress et al.
patent: 2003/0108028 (2003-06-01), Brunner et al.
patent: 2003/0157905 (2003-08-01), Holmqvist
Haas et al; “A Time-Frequency Well-Localized Pulse for Multiple Carrier Transmission”; 1994; IEEE; pp. 1-17.
Walton et al; Hermite Wavelets for Multicarrier Data Transmission; 1993; IEEE; pp. 40-45.
Zou et al; “COFDM: An Overview”; 1995; IEEE; pp. 1-6.
Barrett, T.W., The information content of an electromagnetic field with relevance to sensory processing of information.T.I.T. J. Life Sciences, 1, 129-135, 1971.
Barrett, T.W., On vibrating strings and information theory.J. Sound&Vibration, 20, 407-412, 1972.
Barrett, T.W., Conservation of Information.Acustica, 27, 44-47, 1972.
Barrett, T.W., Definition precedence of signal parameters: sequential versus simultaneous information.Acustica, 27, 90-93, 1972.
Barrett, T.W., The conceptual basis for two information theories—a reply to some criticisms.J. Sound&Vibration, 25, 638-642, 1972.
Barrett, T.W., Analytical information theory.Acustica, 29, 65-67, 1973.
Barrett, T.W., Structural information theory.J. Acoust. Soc. Am., 54, 1092-1098, 1973.
Barrett, T.W., Structural information theory based on electronic configurations.T.I.T. J. Life Sciences, 5, 29-42; 1975.
Barrett, T.W., Nonlinear analysis and structural information theory: a comparison of mathematical and physical derivations.Acustica, 33, 149-165, 1975.
Barrett, T.W., On linearizing nonlinear systems.J. Sound&Vibration, 39, 265-268, 1975.
Barrett, T.W., Linearity in secular systems: four parameter superposition.J. Sound&Vibration, 41, 259-261, 1975.
Barrett, T.W., Information measurement I. On maximum entropy conditions applied to elementary signals.Acustica, 35, 80-85, 1976.
Barrett, T.W., Information measurement II. On minimum conditions of energy order applied to elementary signals.Acustica, 36, 282-286, 1976.
Barrett, T.W., Structural information theory of sound.Acustica, 36, 272-281, 1976.
Barrett, T.W., Quantum statistical foundations for structural information theory and communication theory. pp. 391-409 in V. Lakshmikantham (ed)Nonlinear Systems&Applications: An International Conference, Academic Press, New York (1977).
Wu, J.,Wavelet packet division multiplexing.A thesis submitted to the School of Graduate Studies in Partial Fulfillment of the Requirements of the Degree of Ph.D., Electrical & Computer Engineering, McMaster University, 1998.
Bacon & Thomas PLLC
Duong Frank
Samuel DeWanda
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