Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2004-12-21
2008-08-19
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S267000
Reexamination Certificate
active
07415074
ABSTRACT:
In a wireless transmitting device which performs transmission by an OFDM using a plurality of subcarriers orthogonal to each other, a plurality of preambles to which a plurality of different subcarrier groups selected from a plurality of subcarriers within an OFDM signal band are allocated are transmitted by using a plurality of transmit antennas, and data is transmitted by using the antennas after the preambles are transmitted.
REFERENCES:
patent: 5497398 (1996-03-01), Tzannes et al.
patent: 6917311 (2005-07-01), Hosur et al.
patent: 6985434 (2006-01-01), Wu et al.
patent: 2004/0005018 (2004-01-01), Zhu et al.
patent: 2005/0163244 (2005-07-01), Seto et al.
patent: 2005/0180313 (2005-08-01), Kim et al.
patent: 2005/0180515 (2005-08-01), Orihashi et al.
patent: 2007/0153928 (2007-07-01), Liu et al.
patent: 2000-236313 (2000-08-01), None
patent: 2001-148676 (2001-05-01), None
patent: WO 01/71928 (2001-09-01), None
U.S. Appl. No. 11/201,385, filed Aug. 8, 2005, Aoki.
U.S. Appl. No. 11/087,601, filed Mar. 24, 2005, Aoki.
U.S. Appl. No. 11/076,051, filed Mar. 10, 2005, Aoki et al.
U.S. Appl. No. 11/018,251, filed Dec. 22, 2004, Aoki et al.
U.S. Appl. No. 11/016,808, filed Dec. 21, 2004, Seto et al.
U.S. Appl. No. 11/132,279, filed May 19, 2005, Aoki.
U.S. Appl. No. 11/132,376, filed May 19, 2005, Aoki et al.
Jan Boer, et al., “Backwards compatibility”, ftp://ieee: wireless@ftp.802wirelessworld.com, IEEE 802.11-0714r0, Sep. 2003, 7 Pages.
Yasutaka Ogawa, et al., “A MIMO-OFDM System for High-Speed Transmission”, Vehicular Technology Conference on , USA, vol. 1, Oct. 9, 2003, pp. 493-497.
Aoki Tsuguhide
Seto Ichiro
Yoshida Hiroshi
Kabushiki Kaisha Toshiba
Liu Shuwang
McKie Gina
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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