Analog-to-digital converter and analog to-digital conversion...

Details Analog-to-digital converter and analog to-digital conversion... Analog-to-digital converter and analog to-digital conversion...

2011-03-15

2011-03-15

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07907078

ABSTRACT:
An analog-to-digital converter is disclosed. An input signal processor sets a voltage of an input signal as an initial value of a signal voltage Vin, subtracts ½nof an input range from the nth (n is a positive integer) signal voltage based on a comparison result output from a comparator, and outputs the (n+1)th signal voltage. A reference voltage source outputs a reference voltage to be compared with the signal voltage output from the input signal processor, the reference voltage being obtained by repeatedly reducing by one half the input range. A comparator compares the signal voltage from the input signal processor with the reference voltage from the reference voltage source.

REFERENCES:
patent: 5194865 (1993-03-01), Mason et al.
patent: 7561083 (2009-07-01), Anderson et al.
patent: 63-263921 (1988-10-01), None
Behzad Razavi “Principles of Data Conversion System Design”, 1995, 74.
Randall Geiger L. et al.,“VLSI Design Techniques for Analog and Digital Circuits”, 1990, 619-630.

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