METHOD FOR ACQUIRING CHAOS MULTI-VALUE OF DIGITAL DATA

摘要

PURPOSE: A method for acquiring a chaos multi-value of a digital data is provided to use an AD converter as a quantizer in a loop of one dimensional chaos generation mapping circuit, the DA converter and a nonlinear AD converter. CONSTITUTION: A chaos multi-value acquirement method comprises steps of making a loop by connecting a DA converter and a nonlinear AD converter to one dimensional chaos generation mapping circuit, acquiring a digitally coded multi-value from outputs of the AD converter, sampling analog outputs of the one dimensional mapping circuit by using an external clock to determine an operating speed of IC cells acquiring the multi-value and constructing a nonlinear quantizer with the DA converter and the nonlinear AD converter. The nonlinear characteristics of the AD converter can be designed with a channel capacitance of a MOS transistor in the process of designing an IC mask of the AD converter. The AD converter can be varied with a resolution, in general from 6 bit to 16 bit.