Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-02-14
2008-11-11
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C370S203000, C370S210000, C370S241000, C370S252000, C370S281000, C370S295000, C370S319000, C370S320000, C370S321000, C370S328000, C370S431000, C370S464000, C370S465000
Reexamination Certificate
active
07450653
ABSTRACT:
A signal receiving apparatus and method which is high in deduction accuracy of transfer characteristic and less in error rate during signal decoding. For each detection signal of a pilot carrier allotted in an OFDM symbol space, a transfer function thereof is calculated. The transfer function is subjected to two-dimensional Fourier transform as to impulse delay time and symbol frequency thereby generating a two-dimensional data space. A predetermined domain of the two-dimensional data space is extracted by a filter extracting domain. The data included in the extracted domain is subjected to two-dimensional inverse Fourier transform as to carrier frequency and symbol time, thereby generating a deduced transfer function.
REFERENCES:
patent: 5301266 (1994-04-01), Kimura
patent: 5307376 (1994-04-01), Castelain et al.
patent: 6654429 (2003-11-01), Li
patent: 7209433 (2007-04-01), Scarpa
patent: 2003/0016645 (2003-01-01), Siala et al.
patent: 11-163822 (1999-06-01), None
patent: 11-239115 (1999-08-01), None
patent: 2002-261729 (2002-09-01), None
patent: 2003-101503 (2003-04-01), None
Li Ye, Pilot-symbol-aided channel estimation for OFDM in wireless systems, IEEE transactions on Vehicular Technology, vol. 49, No. 4, Jul. 2000.
European Search Report dated Nov. 26, 2007 issued in European Patent Application No. 05 002 693.9.
Li, Y., “Pilot-Symbol-Aided Channel estimation for OFDM in Wireless Systems”, 49th Vehicular Technology Conference, May 16, 1999, pp. 1131-1135, vol. 2, Piscataway, NJ.
Sanzi, F. et al., “An Adaptive Two-Dimensional Channel Estimator for Wireless OFDM with Application to Mobile DVB-T”, IEEE Transactions on Broadcasting, IEEE Service Center, Jun. 2000, pp. 128-133, vol. 46, No. 2, Piscataway, NJ.
Fernández-Getino Garcia, M.J., et al., “Pilot patterns for channel estimation in OFDM”, Electronics Letters, Jun. 8, 2000, pp. 1049-1050, vol. 36, No. 12, IEE Stevenage, Great Britain.
Harada, Y., et al., “An Implementation Of OFDM Receiver For Digital Terrestrial Television Broadcasting And Its Technologies”, International Broadcasting Convention, Sep. 12-16, 1997, Conference Publication No. 447, pp. 337-342, London, United Kingdom.
Park, S-Y., et al., “Iterative Receiver with Joint Detection and Channel estimation for OFDM System with Multiple Receiver Antennas in Mobile Radio Channels”, IEEE Global Telecommunications Conference, Globecom'01, Nov. 25, 2001, pp. 3085-3089, vol. 5 of 6, New York, New York.
Liu Shuwang
Patel Dhaval
Pioneer Corporation
Sughrue & Mion, PLLC
LandOfFree
Digital broadcast signal receiving apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital broadcast signal receiving apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital broadcast signal receiving apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4051113