Ternary search process

Details Ternary search process Ternary search process

2005-07-19

2010-10-05

Kerveros, James C (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

Reexamination Certificate

active

07809999

ABSTRACT:
An apparatus for use in obtaining a value from a device includes a first comparator to receive a reference high signal and a device signal, where the first comparator provides a first output signal to indicate whether the device signal is above or below the reference high signal, and a second comparator to receive a reference low signal and the device signal, where the second comparator provides a second output signal to indicate whether the device signal is above or below the reference low signal. Also included in the apparatus is circuitry (i) to adjust at least one of the reference high signal and the reference low signal based on the first output signal and the second output signal, and (ii) to output the value if a difference between the reference high signal and the reference low signal meets a predetermined criterion, the value being based on the difference.

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Letter dated Feb. 23, 2010 from foreign associate regarding office action in corresponding Chinese Patent Application No. 200680026387.1 mailed Jan. 22, 2010, 2 pages.
Office Action in office action in corresponding Chinese Patent Application No. 200680026387.1 mailed Jan. 22, 2010 (both English and Chinese versions), 8 pages.
Flash ADC: Digital-Analog Conversion, http://www.allaboutcircuits.com/vol—4/chpt—13/4.html, downloaded May 17, 2010, 3 pages.
Successive approximation ADC: Digital-Analog Conversion, http://www.allaboutcircuits.com/vol—4/chpt—13/6.html, downloaded May 17, 2010, 2 pages.
Response to office action in corresponding Chinese Patent Application No. 200680026387.1 mailed Jun. 7, 2010, 14 pages [including associate letter, amended claim set, and English summary].

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