Method and apparatus for complementary code keying

Details Method and apparatus for complementary code keying Method and apparatus for complementary code keying

2006-12-05

2006-12-05

Corrielus, Jean B. (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S347000, C375S348000, C370S335000, C455S522000

Reexamination Certificate

active

07145969

ABSTRACT:
An apparatus and a method for decoding data that has been Complementary Code Keying (CCK)-encoded at one of the set of first and second differing data rates. The method includes receiving a symbol, determining which of the first and second data rates was used to encode the symbol and applying the symbol to a first correlator to generate a set of correlator output signals. The first correlator generates the set of correlator output signals based on a first mode when the first data rate was used to encode the symbol and based on a second mode when the second data rate was used to encode the symbol. The method also includes identifying a maximum-valued signal in one of the set of correlator output signals and demodulating the maximum-valued signal in one of the set of correlator output signals.

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