Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2007-01-02
2007-01-02
Pezzlo, John (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S252000, C370S350000, C375S222000
Reexamination Certificate
active
10139160
ABSTRACT:
A system and method are disclosed for dynamic preamble detection. A subset of the bits comprising the synchronization portion of the preamble are decoded, de-scrambled, and analyzed to determine dynamically which preamble format is being used. The source data values for the synchronization bits for a first preamble format are different than the source data values for the synchronization bits for a second preamble format and the receiving system uses the difference to determine which preamble format has been used. The information concerning which format has been used may be used to extend a synchronization operation.
REFERENCES:
patent: 4410990 (1983-10-01), Wilkinson
patent: 5151920 (1992-09-01), Haagh et al.
patent: 6331976 (2001-12-01), Sriram
patent: 6373899 (2002-04-01), Krasner
patent: 6643318 (2003-11-01), Parsa et al.
patent: 2001/0017881 (2001-08-01), Bhatoolaul et al.
patent: 2002/0159531 (2002-10-01), Reagan et al.
patent: 0 715 440 (1996-06-01), None
patent: 1 185 048 (2002-03-01), None
patent: 1 191 730 (2002-03-01), None
patent: 1 185 048 (2003-06-01), None
IEEE Std 802.11b/D8.0, Sep. 2001.
Proakis, John G., “Digital Communications” Third Edition, pp. 583-593.
“Supplement to IEEE Standard for Information Technology. Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Higher-Speed Physical Layer Extension in the 2.4 GHz Band” IEEE STD 802.11B-1999, xx, xx, Jan. 20, 2000, pp. 1090 XP002189756.
McFarland William J.
Zeng Chaohuang
Atheros Communications Inc.
Pezzlo John
Van Pelt & Yi & James LLP
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