Method and apparatus for detecting data sequences

Details Method and apparatus for detecting data sequences Method and apparatus for detecting data sequences

2002-08-02

2008-08-19

Ghayour, Mohammad H. (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S342000, C375S354000

Reexamination Certificate

active

07415080

ABSTRACT:
A method of detecting a predetermined complex data sequence in a received signal, representing for example a broadcast burst preamble in a wireless LAN transmission, involves (a) performing an auto-correlation on the data extracted from the received signal to provide an auto-correlation output, (b) combining the auto-correlation output with a delayed version of the auto-correlation output to produce a combined output and (c) providing a signal representing the predetermined data sequence if the combined output meets a predetermined condition, preferably also taking into account the phases of the auto-correlation output.

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IEEE 802.11a standard “Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, High-speed Physical Layer in the 5 GHz Band”,IEEE 1999, pp. 1-13.
IEEE 802.11a standard “Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, High-speed Physical Layer in the 5 GHz Band”,IEEE 1999, pp. 24-26.

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