Analog-to-digital converter and semiconductor device

Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion

Reexamination Certificate

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Details

C341S120000

Reexamination Certificate

active

07471230

ABSTRACT:
An analog to digital converter comprising a reference signal generator, a comparator, and a counter wherein the reference signal generator is operable to generate a reference for converting an analog signal into a digital signal. The reference signal generator is also operable to generate a plurality of the reference signals based on the change in a voltage. The comparator is operable to compare the analog signal with the reference signal generated by the reference signal generator. The counter is operable to count, in parallel with a comparison performed by the comparator, a predetermined count clock and to hold a count value at the time of completion of the comparison.

REFERENCES:
patent: 5877715 (1999-03-01), Gowda
patent: 6344877 (2002-02-01), Gowda et al.
patent: 2005/0168251 (2005-08-01), Lim
patent: 1 107 581 (2001-06-01), None
patent: 1 566 891 (2005-08-01), None
European Search Report dated Jan. 30, 2007.

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