Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 11, 2007
Patent Application Number
10805413
Date Filed
March 19, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
Provided are a method and apparatus for high-speed, multi-mode PAM symbol transmission. A multi-mode PAM output driver drives one or more symbols, the number of levels used in the PAM modulation of the one or more symbols depending on the state of a PAM mode signal. Additionally, the one or more symbols are driven at a symbol rate, the symbol rate selected in accordance with the PAM mode signal so that a data rate of the driven symbols is constant with respect to changes in the state of the PAM mode signal. Further provided are methods for determining the optimal number of PAM levels for symbol transmission and reception in a given physical environment.
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