Multiplex communications – Generalized orthogonal or special mathematical techniques
Reexamination Certificate
2005-06-28
2011-11-08
Ferris, Derrick (Department: 2463)
Multiplex communications
Generalized orthogonal or special mathematical techniques
C370S338000
Reexamination Certificate
active
08054739
ABSTRACT:
A storage unit stores a preamble signal defined in a legacy system and a preamble signal defined in a MIMO system. A monitoring unit in a transmitting apparatus monitors the existence of any communication apparatus which is not compatible with the MIMO system but accepts the legacy system. A channel characteristics acquiring unit derives the characteristics of a radio channel between the transmitting apparatus and a receiving apparatus. A selector selects a packet format based on a monitoring result obtained by the monitoring unit. The selector also selects where to place LTS, based on the characteristics of wireless channel derived by the channel characteristics acquiring unit.
REFERENCES:
patent: 6549777 (2003-04-01), Neumann et al.
patent: 6553021 (2003-04-01), Bishop et al.
patent: 7039412 (2006-05-01), Sandhu et al.
patent: 7233773 (2007-06-01), Hansen et al.
patent: 7586881 (2009-09-01), Hansen et al.
patent: 2002/0147953 (2002-10-01), Catreux et al.
patent: 2002/0160737 (2002-10-01), Crawford
patent: 2002/0167962 (2002-11-01), Kowalski
patent: 2003/0003880 (2003-01-01), Ling et al.
patent: 2005/0152314 (2005-07-01), Sun et al.
patent: 2005/0213554 (2005-09-01), Ginzburg et al.
patent: 2005/0226270 (2005-10-01), Liu et al.
patent: 2005/0233709 (2005-10-01), Gardner et al.
patent: 2005/0239455 (2005-10-01), Stephens
patent: 2005/0286562 (2005-12-01), Nakao et al.
patent: 2008/0192869 (2008-08-01), Goel et al.
patent: 0 944 199 (1999-09-01), None
patent: 10-210099 (1998-08-01), None
patent: 2001-053714 (2001-02-01), None
patent: 2001-518765 (2001-10-01), None
patent: 2003-060649 (2003-02-01), None
patent: 2003-318853 (2003-11-01), None
patent: WO 94/00952 (1994-01-01), None
patent: WO 99/17563 (1999-04-01), None
patent: WO 02/13448 (2002-02-01), None
patent: WO 03/075469 (2003-09-01), None
English Translation of the Written Opinion of the International Searching Authority issued in corresponding Japanese Patent Application No. PCT/JP2005/011562, filed on Jun. 23, 2005.
Korean Office Action, with English Translation, issued in KR 10-2007-7002023 dated on Apr. 15, 2008.
Auer. “Analysis of Pilot-Symbol Aided Channel Estimation for OFDM System with Multiple Transmit Antennas.” IEEE International Conference, Jun. 24, 2004, IEEE Communications Society, vol. 6, pp. 221-3225.
Russian Office Action, with English Translation, issued in Russian Patent Application No. 2007103189/09(003426), dated Mar. 24, 2009.
Indonesian Office Action, w/ English translation thereof, issued in Indonesian Patent Application No. W-002006 03744 dated Jan. 28, 2009.
Chinese Office Action, w/ English translation thereof, issued in Chinese Patent Application No. CN 2005800218250 dated Oct. 16, 2009.
Japanese Notification of Reasons for Refusal, with English Translation, issued in Japanese Patent Application No. JP 2006-117471, dated Jul. 14, 2009.
Japanese Notification of Reasons for Refusal, with English Translation, issued in Japanese Patent Application No. JP 2005-180551, dated Jul. 14, 2009.
Japanese Notification of Reasons for Refusal, with English Translation, issued in Japanese Patent Application No. JP 2006-117472, dated Jul. 14, 2009.
Jan Boer et al., Backwards compatibility, IEEE 802.11-03/714r0, Sep. 2003.
Armin Dammann et al., Beamforming in Combination with Space-Time Diversity for Broadband OFDM Systems, 2002 IEEE International Conference on Communications, United States, Apr. 28, 2002.
Seigo Nakao et al., Considerations for STS MIMO-OFDM, IEEE802.11-04/002r0, Jan. 12, 2004 <http://www.ieee802.org/11/DocFiles/04/11-04-0002-02-000n-considerations-sts-mimo-ofdm.ppt>.
Japanese Notification of Reason(s) for Refusal, w/English translation thereof, issued in Japanese Patent Application No. JP 2005-180550 dated Jul. 21, 2009.
J. Liu et al., “A MIMO System with Backward Compatibility for OFDM-Based WLANs,” Signal Processing Advances in Wireless Communications, 2003 (SPAWC 2003) 4th IEEE Workshop (Jun. 18, 2003) pp. 130-134.
S. Nakao et al., “Effective (20us) Preambles of MIMO-OFDM,” (IEEE802.11-04/249r3, May 11, 2004).
T. Aoki et al., “New preamble structure for AGC in a MIMO-OFDM system,” IEEE802.11-04/046r1, Jan. 2004.
Vietnamese Office Action issued in Vietnamese Patent Application No. 1-2007-00189 dated Sep. 24, 2009.
Written Opinion of the International Searching Authority for the corresponding Patent Application No. PCT/JP2005/011563, mailed Aug. 16, 2005.
United States Notice of Allowance issued in U.S. Appl. No. 11/167,585 dated Jan. 8, 2010.
United States Office Action issued in U.S. Appl. No. 11/167,585, dated May 11, 2010.
Japanese Office Action, with English translation, issued in Japanese Patent Application No. 2006-117471, mailed Aug. 3, 2010.
Japanese Office Action, with English translation, issued in Japanese Patent Application No. 2009-210057, mailed Aug. 3, 2010.
Japanese Notification of Reason(s) for Refusal, w/ English translation thereof, issued in Japanese Patent Application No. JP 2006-117471 dated Apr. 13, 2010.
Japanese Notification of Reason(s) for Refusal, w/ English translation thereof, issued in Japanese Patent Application No. JP 2009-210057 dated May 11, 2010.
Japanese Notification of Reason(s) for Refusal, w/ English translation thereof, issued in Japanese Patent Application No. JP 2006-117472 dated Apr. 13, 2010.
Japanese Notification of Reason(s) for Refusal, w/ English translation thereof, issued in Japanese Patent Application No. JP 2005-180551 dated Apr. 13, 2010.
S. Komaki, “Wireless LAN and Ubiquitous Network,” Maruzen Co., Ltd., Jan. 30, 2004, pp. 105-107.
E. Costa et al., “A Simple Space-Frequency Coding Scheme with Cyclic Delay Diversity for OFDM,” Personal Mobile Communications Conference, 2003, (IEEE, Apr. 25, 2003), pp. 106-110.
M. Wentink et al., “802.11g MAC Analysis and Recommendations,” IEEE 802.11-02/065r1, (IEEE Jan. 2002), Slides 1 and 31-35.
Chinese Office Action, w/ English translation thereof, issued in Chinese Patent Application No. CN 200580021534.1 dated Dec. 11, 2009.
H. Matsue et al., “802.11 High-speed Wireless LAN Textbook,” (IDG Japan, Inc., Mar. 29, 2003), pp. 34-39, w/ English translation thereof.
H. Zhang et al., “A New Space-Yime-Frequency MIMO-OFDM Scheme with Cyclic Delay Diversity,” Proceedings of the IEEE 6th Circuits and Systems Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communications, (May 31, 2004), vol. 2, pp. 647-650.
Japanese Notification of Reason(s) for Refusal, w/ English translation thereof, issued in Japanese Patent Application No. JP 2005-180550 dated Oct. 19, 2010.
United States Office Action issued in U.S. Appl. No. 12/761,139 dated Nov. 23, 2010.
Japanese Decision of Refusal, w/English translation thereof, issued in Japanese Patent Application No. JP 2005-180550 dated Mar. 8, 2011.
United States Notice of Allowance issued in U.S. Appl. No. 11/167,585 dated May 23, 2011.
European Search Report issued in European Patent Application No. EP 05753339.0 dated Apr. 20, 2011.
European Search Report issued in European Patent Application No. EP 05753340.8 dated Apr. 20, 2011.
US Office Action issued in U.S. Appl. No. 12/761,139, dated Aug. 18, 2011.
Higashida Nobuo
Nakao Seigo
Tanaka Yasuhiro
Brockman Angel
Ferris Derrick
McDermott Will & Emery LLP
Sanyo Electric Co,. Ltd.
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