Orthogonal preamble encoder, method of encoding orthogonal...

Details Orthogonal preamble encoder, method of encoding orthogonal... Orthogonal preamble encoder, method of encoding orthogonal...

2005-07-12

2005-07-12

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

C341S051000, C375S347000

Reexamination Certificate

active

06917311

ABSTRACT:
For use with a multiple-input, multiple-output (MIMO) transmitter, an orthogonal preamble encoder, a method of encoding orthogonal preambles and a communication system incorporating the encoder or the method. In one embodiment, the encoder includes: (1) a preamble supplement generator configured to provide a first long sequence preamble supplement to a first transmit antenna of the MIMO transmitter and (2) a preamble supplement coordinator coupled to the preamble supplement generator and configured to provide a second long sequence preamble supplement to a second transmit antenna of the MIMO transmitter, at least a portion of the second long sequence preamble supplement being a negation of the first long sequence preamble supplement.

REFERENCES:
patent: 6473467 (2002-10-01), Wallace et al.
patent: 6549583 (2003-04-01), Crawford
patent: 6687492 (2004-02-01), Sugar et al.
patent: 6754170 (2004-06-01), Ward
patent: 6798736 (2004-09-01), Black et al.
patent: 6865174 (2005-03-01), Tsubouchi et al.

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