Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2006-10-20
2010-12-28
Phu, Phuong (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S260000, C375S279000, C375S298000, C375S308000, C455S039000, C455S073000, C348S471000, C348S489000, C348S728000
Reexamination Certificate
active
07860180
ABSTRACT:
The invention enables the transmission of continuous complex numbers using a symbol based transmission scheme such as OFDM. Accordingly, complex numbers are mapped to the constellation map, enabling a fine granularity of constellation points. This scheme may be used, for example, in the transmission of video where the coefficients representing the higher frequency of each of the video components, as well as the quantization error values of the DC and near DC components, or some, possibly non-linear transformation thereof, are sent as pairs of real and imaginary portions of a complex number that comprises a symbol.
REFERENCES:
patent: 5768535 (1998-06-01), Chaddha et al.
patent: 6788349 (2004-09-01), Wu et al.
patent: 2003/0002582 (2003-01-01), Obrador
patent: 2004/0196404 (2004-10-01), Loheit et al.
patent: 2004/0196920 (2004-10-01), Loheit et al.
patent: 06 83 6492 (2009-09-01), None
patent: WO 2005/029737 (2005-03-01), None
patent: WO 2005/029737 (2005-03-01), None
patent: WO 2005/055444 (2005-06-01), None
Yujin Noh et al, Design of Unequal Error Protection for MIMO-OFDM Systems, Vehicular Technology Conference, May 30, 2005, pp. 1058-1062, vol. 2, IEEE, Piscataway, NJ, USA.
Fazel K et al, A Concept of Digital Terrestrial Television Broadcasting, Wireless Personal Communications, Jan. 1, 1995, pp. 9-27, vol. 2 No. 1/02, Springer, Dordrecht, NL.
Skoglund, M., et al. Design and Performance of VQ-Based Hybrid Digital-Analog Joint Source-Channel Codes. IEEE Transactions on Information Theory. vol. 48. No. 3. Mar. 2002.
Mittal, U., et al. Hybrid Digital-Analog (HDA) Joint Source-Channel Codes for Boradcasting and Robust Communications, IEEE Transactions on Information Theory. vol. 48. No. 5 May 2002.
Mittal, U. Broadcasting, Robustness and Duality in a Joint Source- Channel Coding System. New York State University. Aug. 1999.
Schreiber, W. Advanced Television Systems for Terrestrial Broadcasting: Some Problems and Some Proposed Solutions. Proceedings of the IEEE. vol. 83. No. 6. Jun. 1995.
Ramstad, T. The Marraige of Subband Coding and OFDM Transmission.
Elnathan Nathan
Feder Meir
Freundlich Shay
Reznic Zvi
Amimon Ltd
Eitan Mehulal Law Group
Phu Phuong
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