Fractional frequency division of a digital signal
AssigneeDolphin Integration
InventorFrédéric Poullet
Life of this patent
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Abstract
A method of fractional division of a frequency of a digital signal from N replicas of said digital signal shifted in phase with respect to one another by 2π/N. This method consists of selecting a first replica to generate the rising edge and a second replica to generate the falling edge, the first and second replicas of a period of the resulting signal being different from the first and second replicas used in the next period.
Claims20
A method of fractional division of a frequency of a digital signal from N replicas (PH1, PH2, PH3) of said digital signal shifted in phase with respect to one another by 2π/N, comprising selecting a first replica to generate the rising edge and a second replica to generate the falling edge, the first and second replicas of a period of the resulting signal (CK) being different from the first and second replicas used in the next period, wherein N>1.
Dependencies are inferred from the claim text.